参考设计
(118)
85VAC-264VAC Input, 55V/2A QR Flyback + PFC
PMP6910: The PMP6910 reference design delivers an isolated 55V at 2A with PFC from a universal AC input. This design is a modified version of the UCC28600 EVM. The PFC boost portion of the design is unchanged from the original EVM. The UCC28600 quasi-resonant flyback has been modified for the higher output voltage. The flyback portion of the design is over 88% efficient. The total input-to-output effciency of the design is 83% from a 120VAC input and 85% from a 240VAC input. For sustained loads over 1.5A, forced air cooling is recommended.
Low Cost LCD Bias Supply Reference Design
PMP10051: This design provides, with only one switcher and a coupled inductor, four output voltages for biasing a liquid crystal display. The topology is a Sepic with stacked windings, which offers good performance and low EMI.
RF Sampling 4-GSPS ADC Reference Design with 8-GHz DC-Coupled Differential Amplifier
TIDA-00431: Wideband radio frequency (RF) receivers allow greatly increased flexibility in radio designs. The wide instantaneous bandwidth allows flexible tuning without changing hardware and the ability to capture multiple channels at widely separated frequencies. This reference design describes a wideband RF receiver utilizing a 4-GSPS analog-to-digital converter (ADC), with an 8-GHz, DC-coupled, fully differential amplifier front end. The amplifier front end provides signal gain and allows capture of signals down to DC, which is not possible with a balun-coupled input.
Single-Supply Low-Input Voltage Optimized Precision Full-Wave Rectifier Reference Design
TIPD124: This TI Verified Design implements a single-supply full-wave rectifier. The design has been optimized to support excellent linearity for small-input voltage signals from 5mV – 200mV. The design is used to turn low-level alternating current (ac) signals to positive polarity signals. The circuit is designed to function up to 50 kHz and has excellent linearity at signal levels as low as 5 mVpp. The circuit can be used in sensor acquisition or signal strength indication applications that need to quantify values of low-level input signals which have positive and negative polarities.
Primary-Side Regulated Flyback with 85-265VAC Input (12V @ 3W) Reference Design
PMP8869: The PMP8869 reference design uses the UCC28700 primary-side regulated flyback controller to generate a 12V/250mA output from a universal AC input. The valley switching of the UCC28700 allows this low-cost design to achieve a maximum load efficiency over 80%; no load losses are less than 30mW. This circuit fits onto a 23mm x 37mm PCB.
310W PSU Using Transition Mode Bridgeless PFC and LLC-SRC - Reference Design
PMP9640: High efficiency, high power factor and reliable power supply are the main focus of the PMP9640 design for motor driver applications. Low cost analog transition mode (TM) PFC controller UCC28051 has been used for bridgeless PFC as the first conversion stage of the PMP9640. LLC series resonant converter (SRC) with UCC25600 is applied as the second stage of the PMP9640. In addition, a high-side buck converter with UCC28710 is applied here as the bias supply. In this design, bridgeless PFC efficiency can go up to 98.5%.
Primary-Side Regulated Flyback with 184 to 265VAC Input (12V @ 3W) Reference Design
PMP8764: The PMP8764 reference design uses the UCC28700 primary-side regulated flyback controller to generate a 12V/250mA output from a 230VAC input. The valley switching of the UCC28700 allows this low-cost design to achieve a maximum load efficiency over 78%; no load losses are only 30mW. This circuit fits onto a 23mm x 37mm PCB.
QR Flyback Converter for High Input Voltage (up to 415Vac)
PMP8471.1: PMP8471 has been designed as a smart meter power supply for high input voltage application. PMP8471 can sustain input voltage up to 415Vac. The flyback coupled-inductor is designed to supply two 12V outputs each with 300mA nominal output current.
85 to 265VAC Input 5V@4A Dual Port Charger For Tablets and Smart Phones Reference Design
PMP8817: This reference design is capable of charging two devices at 2A each with over 85% efficiency. The UCC24610 synchronous rectifier controller and CSD18533Q5A FET reduce the rectifier loss and provide ultra-high efficiency with a minimal increase in cost. The UCC28700 primary-side regulated flyback further minimizes cost by eliminating the need for an opto-coupler, and yet maintains good output regulation. The TPS2561A provides accurate and independent current limit protection for each port. The TPS2513 communicates with the mobile device under charge to ensure that the charger is accepted by most phone and tablet models. This compact design consumes a volume of only 1.5" x 1.8" x 0.9".
3.6W Non-Isolated PSU
PMP4710: Typical Bias supply connected directly off-line or to a 400V PFC voltage: simple way to generate 12V @ 300mA from hight voltage.
Small Form Factor 12W Ultra Wide Range Power Supply for Protection Relays - Reference Design
TIDA-00227: This small form factor, 12W power supply solution for protection relays handles an ultra-wide range of both AC and DC inputs making it a suitable platform to power a variety of lower power protection relays that need to be placed in a small housing. The power supply is designed to output industry standard voltages required in protection relays while also providing excellent line and load regulation. This solution has been engineered for high wattage with good efficiency and has also been pre-compliance tested for IEC61000-4 (EFT and Surge) and CISPR 11 Class A (Interference).
Efficient, Step-down, High-power LED Driver with Strobe and Synchronization for Fire Alarms
PMP9762: This TI Design demonstrates an efficient, step-down, high-power LED driver with strobe & synchronization for fire alarms. A 3-A LED is driven from a common, quasi-regulated 12-V input bus at over 85% efficiency. The circuit supports a clock input for the strobe function, which allows synchronization of multiple LED drivers to a common clock source. As seen at APEC
Class 4- Dual PoE+ (Power Over Ethernet)
PMP6998.1: The PMP6998 reference design is an isolated Flyback which uses an LM5072 and is intended for Power over Ethernet (PoE) applications. It can generate isolated outputs of 3.3 Volts at 3.3 Amps and 5 Volts at 2 Amps from an input of 38 to 60 Volts DC. An auxiliary input supply of 12 Volts may also be used with this design.
15 Cell Lithium Ion Battery Controller Analog Front End Reference Design
TIDA-00255: The TIDA00255 reference design utilizes the bq76940 analog front end (AFE) IC. It measures cell voltages, and die temperature or external thermistor voltage using a 14 bit ADC. Current is measured separately by a separate 16 bit coulomb counter. The design can turn off low side power FETs to stop discharge or charge based on selected hardware limits. A microcontroller not included in this design would be part of the battery controller to communicate to the AFE to set protection thresholds, turn on the power FETs, provide fault recovery and turn off the FETs for over or under temperature conditions. A battery controller design may contain other features which are not part of this reference design such as secondary over voltage protection, gauging, and isolated communication to let the system know the state of the battery.
High Efficiency 350W AC/DC Power Supply Reference Design
PMP11303.1: PMP11303 is high-efficiency AC/DC power supply reference design with universal AC input and 25V/13.5A and 12V/1A outputs. LLC+PFC combo IC UCC29950 is applied for the main power stages with 25V/13.5A output while UCC28730 is applied for the auxiliary power with 12V/1A output. This design has low no load power comsumption (152mW@230VAC) and over 93% peak efficiency. This design also meet 80PLUS Gold requirement for 115VAC Internal power supplies.
Dual-Channel Full-Bridge Converter (54V @ 30A) for PoE Power Sourcing (PSE)
PMP6712: PMP6712 is a phase-shifted full-bridge converter capable of delivering 1600W of isolated output power and achieving efficiency of greater than 96%. This design uses the UCC28950 controller in a dual phase master-slave configuration. An LM5017 constant on-time synchronous buck regulator provides bias power to primary and secondary-side circuits using a coupled inductor with isolated flyback winding. The isolation voltage is specified as 2250VDC, allowing this design to be used as a system supply for Power Over Ethernet and other telecommunications applications.
Low Cost LCD Bias Supply Reference Design
PMP10051.2: This design provides, with only one switcher and a coupled inductor, four output voltages for biasing a liquid crystal display. The topology is a Sepic with stacked windings, which offers good performance and low EMI.
Electric Toothbrush Controller Reference Design
TIDA-00602: This TI Design uses Texas Instruments’ low-voltage H-Bridge motor driver with an integrated LDO voltage regulator and an ultra-low-power microcontroller (MCU) to demonstrate a full implementation of a battery powered electric toothbrush.
19 Watt AC Input LED Driver Reference Design
PMP3155: The PMP3155 reference design is a 19 W AC input LED Driver. The UCC3809 and TLC272 are used to control the current to the LED array dim the output according to input from a standard triac-based wall dimmer. The non isolated LED power driver achieves efficiencies around 85% for various line and dimmer setting conditions.
672W Highly Integrated Reference Design for Automotive Bidirectional 48V-12V Converter
TIDA-00558: Today's automotive power consumtion is 3KW, which will increase to 10KW in next 5 years and 12V batttary is unable to provide that much power. 48-12V bi-directional convertor provides high power requirement solution with two phases each capable of running 28A. This solution allows bidirectional current control of both phases using a C2000 control stick and firmware OCP & OVP. The 48-12V bi-directional converter removes the voltage conditioner need and distributes loads more evenly. The 48V battary is used to power high torque motors and other high power components such as A/C compressors and EPS, while no change to 12V battery loads.
A Robust Glass-Breakage Detector Reference Design
TIDM-GBD-ROBUST: This reference design describes a simple as well as a robust glass breakage detector designs using the MSP430F2274 and was developed to operate at low power, allowing long battery life. The simple design algorithm is based on the spectral analysis of a typical glass breakage signal by analyzing signal characteristics such as peak content, number of zero crossings, and frequency composition. A glass breakage alert is indicated by an onboard buzzer and an LED. The robust glass-breakage detector includes an extra thud detection stage before actual glass-breakage detection to avoid false triggering of the glass-breakage detector for sound events with signal spectrum similar to a glass-break sound.
Synchronization of JESD204B Giga-Sample ADCs using Xilinx Platform for Phased Array Radar Systems
TIDA-00432: This system level design shows how two ADC12J4000 evaluation modules (EVMs) can be synchronized together using a Xilinx VC707 platform. The design document describes the required hardware modifications and device configurations, including the clocking scheme. Example configuration files are shown for each EVM. The FPGA firmware is described and the relevant Xilinx IP block configuration parameters are shown. Data taken on the actual hardware is shown and analyzed, showing synchronization within 50 ps without characterized cables or calibrated propagation delays.
85VAC to 265VAC Input, 7.5V Output, 15W Quasi-Resonant Flyback
PMP8362.1: This reference design uses the UCC28610 quasi-resonant flyback controller to generate isolated 7.5V and 12V outputs from a universal AC input. The 7.5V output is designed to provide up to 1.3A of output current, while the 12V output is capable of providing up to 0.42A. The 7.5V output is regulated, while the 12V output is generated from a stacked, unregulated winding on the transformer.
Low Cost LCD Bias Supply Reference Design
PMP10051.3: This design provides, with only one switcher and a coupled inductor, four output voltages for biasing a liquid crystal display. The topology is a Sepic with stacked windings, which offers good performance and low EMI.
Class 4- High Efficiency 12V Class 4 PoE Converter Reference Design
PMP8812: This design is a 12V/2.1A synchronous flyback converter for high efficiency PoE applications. The TPS23752 combines the Powered Device and PWM controllers in one package. Additional features are synchronous rectifier disable for improved light load efficiency and support for ulta low power sleep mode.
Series Driver (350mA@20) for PAR30/PAR38 Light Bulb Replacement
PMP4304: The PMP4304 is 7W TRIAC dimming LED lighting Driver with 180 to 264Vac input. It has only 50 components counts with low BOM cost,and it is TRIAC dimmable solutions without flicking. PMP4304 has a primary side that controls without opto-coupler and Constant On-time control with high power factor.
Bridgeless Power Factor Correction Converter
TIDM-BLPFC: This design is a digitally controlled, bridgeless, 300W, power factor correction (PFC) converter. The distinguishing characteristic of a bridgeless PFC converter is that it eliminates the need for a diode bridge at the input. This reduces power losses that normally occur in a diode bridge and, as a result, improves overall system efficiency. For this design, a C2000™ Piccolo™ TMS320F28035 microcontroller (MCU) is the digital controller for the PFC converter, controlling the two boost power stages that comprise the bridgeless PFC converter. By operating the stages alternatively during the positive and negative half cycles of the AC mains voltage, the Piccolo MCU implements both the AC-to-DC rectification as well as power factor control. This design achieves full load efficiency greater than 93% and power factor of greater than 0.98 at 50% or greater load.
Low Cost LCD Bias Supply Reference Design
PMP10051.1: This design provides, with only one switcher and a coupled inductor, four output voltages for biasing a liquid crystal display. The topology is a Sepic with stacked windings, which offers good performance and low EMI.
Isolated Sync Flyback (5V @ 0.2A) for Motor Control
PMP2431: This low-cost (1W) isolated synchronous flyback regulator produces a 5V output from a low 24V input voltage and obtains a full-load efficiency of 85%. Possible applications include security systems, industrial, telecom and medical.
High-Efficiency Isolated Flyback Converter Reference Design for PoE Application
PMP9446: PMP9446 is an Isolated Flyback Converter using the LM5022 controller IC. The design accepts an input voltage of 10Vin to 15Vin (12Vin Nominal) and provides an output of 54Vout capable of supplying 0.75A of continuous current to the load. The design was built on the PMP7899 PCB, which was modified to the PMP9446 design configuration and requirements.
120VAC Input, 3.3V/1.2A Output, Non-Isolated Flyback
PMP6716: This reference design uses the UCC28C42 in a non-isolated flyback topology to generate 3.3V, 1.2V and 22V from a US line AC input. The total output power is 4W. The 3.3V output is regulated by the UCC28C42. A TLV1117LV LDO is used to generate the 1.2V output from the 3.3V output. The 22V output is unregulated and designed only to provide 20mA.
LED Boost 350mA/700mA with Dimming
PMP4524: universal dimmable DC/DC LED driver in boost configuration for strings up to eight LEDs scalable for 350mA or 700mA output current
Primary-Side Regulated Flyback with 85-265VAC Input, (5.9V @ 1.5A)
PMP8500: The PMP8500 reference design uses the UCC28700 primary-side regulated flyback controller to generate a 5.9V/1.5A output from a univeral AC input. The valley switching of the UCC28700 allows this low-cost design to achieve a maximum load efficiency greater than 78%; no load losses are less than 30mW.
Class 4- Dual PoE+ (Power Over Ethernet)
PMP6998.2: The PMP6998 reference design is an isolated Flyback which uses an LM5072 and is intended for Power over Ethernet (PoE) applications. It can generate isolated outputs of 3.3 Volts at 3.3 Amps and 5 Volts at 2 Amps from an input of 38 to 60 Volts DC. An auxiliary input supply of 12 Volts may also be used with this design.
85VAC to 265VAC Input, 12V Output, 15W Quasi-Resonant Flyback
PMP8362.2: This reference design uses the UCC28610 quasi-resonant flyback controller to generate isolated 7.5V and 12V outputs from a universal AC input. The 7.5V output is designed to provide up to 1.3A of output current, while the 12V output is capable of providing up to 0.42A. The 7.5V output is regulated, while the 12V output is generated from a stacked, unregulated winding on the transformer.
TPS92310 - 220VAC, 8W Isolated , Triac dimmable
PMP8012: The main purpose of this reference design is to demonstrate a high performance, compact size and triac Dimmable offline flyback LED driver with PFC based on TPS92310. This LED driver is designed for converting an AC input to a regulated LED current. The operating conditions and performance of the reference design are as follows: ●198VAC to 264VAC, 50Hz Input Voltage ●18V to 22V LED Voltage ●350mA Regulated LED Current ●Greater tha 75% Typical System Efficiency ●0.9 Typical Power Factor ●Output Short-Circuit and Open-Circuit Protection
Precision Full-Wave Rectifier, Dual-Supply
TIPD139: This TI Precision Verified Design provides the theory, component selection, simulation, PCB design, and measured results for a dual-supply precision full-wave rectifier. The design functions over a wide power supply range (up to +/-18V) allowing full-wave rectification of a wide range of input signals. This implementation operates with limited distortion for 20 Vpp input signals at frequencies up to 50 kHz and for signals as small as 50 mVpp at frequencies up to 1 kHz. The circuit can be used in applications that need to quantify the absolute value of input signals which have both positive and negative polarities. The OPA2211 provides excellent noise and distortion performance making it ideal for precision applications.
220VAC in 28W Non-Isolated T8 Tube LED Driver Solution
PMP4362: The reference design presents non-isolated LED driver solution for 28W T8 tube application. The valley switching mode controller TPS92314 is used to achieve high effiency (>93%) over input range. Inherent PFC achieves high PF>0.92. The design includes EMI driver board and LED driver board. The overall size is around 100mmx16mmx14.5mm.
High Efficiency 350W AC/DC Power Supply Reference Design
PMP11303.2: PMP11303 is high-efficiency AC/DC power supply reference design with universal AC input and 25V/13.5A and 12V/1A outputs. LLC+PFC combo IC UCC29950 is applied for the main power stages with 25V/13.5A output while UCC28730 is applied for the auxiliary power with 12V/1A output. This design has low no load power comsumption (152mW@230VAC) and over 93% peak efficiency. This design also meet 80PLUS Gold requirement for 115VAC Internal power supplies.
16-Cell EV/HEV Integrated Battery Monitor and Protector with Passive Balancing Reference Design
TIDA-00717: Stackable monitor and protector for use in large format Lithium-ion batteries that provides monitoring, balancing, and communications. Each bq76PL455A-Q1 EVM can manage 8 to 16 cells (12V min) for Li-ion battery applications. Up to 16 bq76PL455A-Q1 EVM modules can be stacked. The system provides fast cell balancing, diagnostics, and module to controller communication. Independent protection circuitry is also integrated.
90V to 270V AC Input, -12V to +12V/3W Quasi-Resonant Flyback(12V @ 250mA)
PMP7263.1: This reference design uses the UCC28600 quasi-resonant flyback controller to generate isolated +12V/250mA and -12V/10mA outputs from a universal AC input. The energy saving features of the UCC28600 minimize power losses at no load and full load conditions. This design is laid out on a 36mm X 46mm printed circuit board.
Direct Type/ Local Dimming (Conventional TV power + Boost + LED driver)
PMP4298: In this topology, the UCC28051 is a boost transition mode (TM) power factor corrector (PFC), which can rectify an AC input line voltage to 380V DC; the resonant LLC stage UCC25600 regulates the output to 24V/2A for an audio amplifier with feedback to the LLC controller, and 48V for the LED driver input. The flyback with UCC28610 in parallel generates 5V/3A for the system board and 5V/1A for standby power. In the LED driver stage, the 48V input voltage requires another front end boost stage to boost the output voltage to 80V, which connects to the eight-channel TLC5960 with 20LEDs at 120mA per string.This technique is the most common type of current LED backlight; the LLC design is easily implemented. The intelligent headroom voltage monitor (oriHVM™) automatically minimizes the power loss caused by the LED forward voltage change. Only a single additional resistor regulates the boost dc-dc output voltage.
Automotive LED Sequential Brake/Turn Light TI Reference Design
TIDA-00336: This TI Design utilizes a TLC6C5912 shift register operated via two 555 timers integrated in the TLC556 device, showcasing a cost effective solution for rolling LED system design. This design can also withstand automotive cold crank conditions capable of full operation at 5V, with the ability to operate down to 3.3V.
Adaptive Power Supply for PLC Analog Output Module with Output Channel Protection
TIDA-00231: TIDA-00231 is a reference design for an industrial Programmable Logic Controller (PLC) analog output module. The design provides a unique power saving solution for a digital-to-analog converter (DAC)-based analog current output module with an adaptive power supply. This adaptive power supply dynamically regulates the AVDD supply of the DAC and limits power losses to < 50mW for typical load resistance of > 300Ω. The analog output can source current up to 24mA. This reference design includes the necessary on-board protection circuit and has been tested to IEC61000-4 standard EFT, ESD, and surge requirements with IO Controller platforms. The protection circuitry does not negatively affect the design and Test results showed typical unadjusted errors were less than 0.2% FSR and calibrated accuracy is 0.05%. Watch a TIDA-00231 overview video on the Isolated DC/DC Converter reference design NOW
120W Automotive Two-Switch Buck-Boost Converter
PMP7905: PMP7905 is a two-switch buck-boost converter capable of 120W output power. This design uses the LM5118 wide voltage range buck-boost controller. 100V Schottky rectifiers and MOSFET are used for input switching, while 30V Schottky rectifiers and MOSFET are used for output switching. The operating input voltage range is targeted for automotive applications as 8V to 16V with 75V transient capability.
Isolated IGBT Gate-Drive Push-Pull Power Supply with 4 Outputs
TIDA-00181: This reference design provides isolated positive and negative voltage rails required for Insulated Gate Bipolar Transistor (IGBT) gate drivers from a single 24-volt DC input supply. IGBTs are used in three phase inverters for variable-frequency drives to control the speed of AC motors. This reference design uses a push-pull isolated control topology and provides isolation compliant to IEC61800-5 and is intended to operate from a pre-regulated 24Vdc input. With a regulated (within 5%) input source, a simple open-loop, free-running oscillator can be implemented with a push-pull PWM controller. This topology is essentially a forward converter with two primary windings used to create a dual-drive winding. This fully utilizes the transformer core's magnetizing current more efficiently than flyback or the forward topologies. Another advantage this configuration has over flyback and forward configurations is that the supply output can be scaled up for higher power drives. This reference design also takes advantage of another benefit of the push pull topology in that multiple transformers can be controlled in parallel from a single controller to generate all the isolated voltage rails required for 3-phase IGBT inverters. Lastly, larger IGBTs for higher power drives sometimes require more gate drive current than what is provided by a typical IGBT gate driver, for which designers often use additional transistors for gate current boosting. This reference design provides +16V on the positive outputs and -8V on the negative outputs to compensate for the added voltage drop in those transistors.
90V to 270V AC Input, -12V to +12V/3W Quasi-Resonant Flyback(-12V @ 10mA)
PMP7263.2: This reference design uses the UCC28600 quasi-resonant flyback controller to generate isolated +12V/250mA and -12V/10mA outputs from a universal AC input. The energy saving features of the UCC28600 minimize power losses at no load and full load conditions. This design is laid out on a 36mm X 46mm printed circuit board.
350W PSU with Universal AC Input and 28V Output - Reference Design
PMP9531: High efficiency, high power factor and reliable power supply are the main focus of the PMP9531 design for motor driver applications. Transition mode (TM) power factor correction (PFC) with UCC28051 and LLC series resonant converter (SRC) with UCC25600 are applied in PMP9531. In addition, a high-side buck converter with UCC28710 is applied here as the bias supply. 93% converter efficiency is achieved at high line while still obtaining 90% converter efficiency at low line.
65W High-efficiency CoC-5 tier2/DOE Level VI AC Adapter
TIDA-00519: This is a high efficiency 65W AC/DC design for a Universal input (85Vac to 265Vac) to 19.5V @3.33A output exceeding CoC-5 Tier2 and DOE Level VI requirements for external power supplies using the LM5023 Quasi-Resontant Flyback Controller with UCC24630 Synchronous Rectification Controller and CSD19531Q5A MOSFET. Additionally the LM8364 reset controller is used to provide input line AC UVLO protection. As seen at APEC
120VAC Input, 5V/0.8A Output, Non-Isolated Flyback
PMP6811: This reference design uses the UCC28C42 in a non-isolated flyback topology to generate 5V at 0.8A from a US line AC input. This low-cost, compact design is over 70% efficient at maximum load.
300VDCin to 600VDCin; 20Vout @ 1.5A;
PMP7958: A high voltage input isolated flyback converter that accepts an input voltage of 300VDCin to 600VDCin and provides an isolated output of 20Vout capable of supplying 1.5A.
85VAC to 265VAC Input, 12V Output, 15W Quasi-Resonant Flyback - PMP8362.2 - TI Tool Folder
PMP8362: This reference design uses the UCC28610 quasi-resonant flyback controller to generate isolated 7.5V and 12V outputs from a universal AC input. The 7.5V output is designed to provide up to 1.3A of output current, while the 12V output is capable of providing up to 0.42A. The 7.5V output is regulated, while the 12V output is generated from a stacked, unregulated winding on the transformer.
Clocking Solution Reference Design for GSPS ADCs
TIDA-00359: Low cost, high performance clocking solution for GSPS data converters. This reference design discusses the use of a TRF3765, a low noise frequency synthesizer, generating the sampling clock for a 4 GSPS analog-to-digital converter (ADC12J4000). Experiments demonstrate data sheet comparable SNR and SFDR performance.
9V – 50V input to 12V@3A, Sepic Converter
PMP7768: It is a 36W Sepic converter designed using LM5022. The output is set to 12V and input varies from 9V to 50V. It uses a bootstrap supply to minimize losses in LM5022. It is a current mode controller.
LM3445 – 220VAC, 7W Dimmable Isolated
PMP7751: This demonstration board highlights the performance of a LM3445 based Flyback LED driver solution that can be used to power a single LED string consisting of 6 / 7 series connected LEDs from an 198 VRMS to 264 VRMS, 50 Hz input power supply. This is a two-layer board using the bottom and top layer for component placement. The demonstration board can be modified to adjust the LED forward current, the number of series connected LEDs that are driven and the switching frequency. Refer to the LM3445 datasheet for detailed instructions. A bill of materials is included that describes the parts used on this demonstration board.
Primary-Side Regulated Flyback with 85 to 265VAC Input (12V @ 0.5A) Reference Design
PMP8787: The PMP8787 reference design uses the UCC28700 flyback controller to generate a 12V/500mA output from a univeral AC input. The primary-side regulation technique implemented by the UCC28700 eliminates the need for an opto coupler, reducing the size and cost of the design. In addition, the valley switching of the UCC28700 allows this design to achieve a maximum load efficiency over 80%; no load losses are less than 40mW. The circuit board measures only 28mm by 33mm, with a maximum height below 20mm.
30 to 350Vin 15Vout @ 1A Isolated Flyback Converter Reference Design
PMP9334: PMP9334 is an isolated Flyback converter utilizing the LM5022 for industrial applications. It uses primary side regulation from an auxiliary winding with a resistor divider network to the Feedback pin of the LM5022. This design has a minimum operating input voltage of 30V and a max rating of 350V.
A Fully Featured, 350W Offline High Performance Power Supply
PMP5568: This project is a complete 350W, high performance, high speed offline power supply solution. It contains a novel, microcontroller-driven synchronous bridge rectifier, a 2-phase interleaved PFC stage and a phase-shifted fullbridge as down converter. It has an universal input (85 .. 265V AC) and the output voltage is adjustable between 12 and 14V. The continuous output current is 25A, the peak current is 27A. A second microcontroller monitors several values (input voltage, PFC voltage, output voltage, output current, temperatures), is the interface to the user (LCD, push-buttons), adjusts the output voltage and synchronizes the switching frequency of all converters.
30W Ultra Wide Range Power Supply for Protection Relays Reference Design
TIDA-00127: This power supply solution for Protection Relays handles an ultra-wide range of both AC (88-276V AC) and DC (24-250V DC) inputs making it a suitable platform to power a variety of Protection Relays. The power supply is designed to output industry standard voltages (such as +/- 12V and isolated 6.75V) required in many Protection Relays while also providing excellent line and load regulation (< +/- 3%). This solution has been engineered for high wattage (30W) with good efficiency (up to 78%) and has also been pre-compliance tested for IEC61000-4 (EFT and Surge) and CISPR 11 Class A (Interference).
Low-Line Wide Input LLC Resonant Conv for Consumer Electronics (12V@10A) Reference Design
PMP8762: The PMP8762 reference design provides a 12V/10A output from a low line-input voltage (100Vac to 132Vac) with a single LLC resonant converter stage. This design is featured with its low circuit cost, low electromagnetic interference (both conduction and radiation), and high efficiency (over 87% @ full load). This design uses the UCC25600 resonant converter controller along with UCC27702 high side gate driver to control the LLC resonant converter.
350W Constant Voltage - Constant Current (CVCC) Phase-Shifted Full Bridge reference design
PMP9622: This reference design uses the UCC3895 Phase-Shifted Full Bridge controller to implement a high efficiency, 120VAC input to 44Vdc up to 8A output. The power supply is set up to be constant voltage-constant current. The voltage and current are set by fixed resistor values and could be set by micro-processor in the actual product. The design is biased by a low-cost BJT Flyback using the UCC28720 PWM controller.
Reference Design - Universal Line Input AC-DC 3W High Side Buck Converter using UCC28720
PMP9649: The PMP9649 reference design is a simple, low-cost high side Buck converter to convert universal AC input voltage (85Vac to 265Vac) to a non-isolated 20V/150mA DC output with UCC28720 controller. BJT is applied as the buck switch for cost optimization, and simplicity is achieved with bulit-in sample and hold regulation function in UCC28720.
Universal AC-DC Buck Converter Using UCC28710 Reference Design
PMP9530: The PMP9530 reference design uses a buck converter to convert universal AC input voltage (85Vac to 265Vac) to a 18V/300mA DC output with UCC28710 controller. High efficiency and circuit simplicity is achieved with quasi-resonant valley-switching operation and a Buck topology.
Envelope-Tracking Power Supply Reference Design for Audio Power Amplifiers with TPS61088
PMP9774: This reference design delivers an envelope-tracking power supply circuit for audio power amplifier (PA) with TPS61088. By adding an audio envelope signal to the FB pin, the TPS61088’s output voltage can change in accordance with the envelope of the audio signal. So the TPS61088 provides a dynamically changing supply voltage to the PA. Thus the PA can always keep high efficiency in the whole output power range.
Class 4- Dual PoE+ (Power Over Ethernet) - PMP6998.2 - TI Tool Folder
PMP6998: The PMP6998 reference design is an isolated Flyback which uses an LM5072 and is intended for Power over Ethernet (PoE) applications. It can generate isolated outputs of 3.3 Volts at 3.3 Amps and 5 Volts at 2 Amps from an input of 38 to 60 Volts DC. An auxiliary input supply of 12 Volts may also be used with this design.
30W Smart Current Equalizer with color temperature selection for panel lamp application
PMP8009: This demonstration board is aimed to drive 30W 6 channels LED system powered by constant current power supply. Thanks to the intelligent circuitry inside LM3466, the solution can provide accurate adjustable current branch equalization, well controlled current limit protection, adjustable color temperature and smart open string light intensity control. Meanwhile, the solution is power efficient and EMI friendly. It is especially suitable for street light application, eye care desk lighting and other multi-channel LED systems.
QR Flyback Converter for High Input Voltage (up to 415Vac)
PMP8471.2: PMP8471 has been designed as a smart meter power supply for high input voltage application. PMP8471 can sustain input voltage up to 415Vac. The flyback coupled-inductor is designed to supply two 12V outputs each with 300mA nominal output current.
Triac dimmable Flyback LED Driver with PFC for A19 using TPS92314
PMP8014: The main purpose of this reference design is to demonstrate a high performance, compact size and triac Dimmable offline flyback LED driver with PFC based on TPS92314. This LED driver is designed for converting an AC input to a regulated LED current. The operating conditions and performance of the reference design are as follows: ●198VAC to 264VAC, 50Hz Input Voltage ●18V to 22V LED Voltage ●350mA Regulated LED Current ●84% Typical System Efficiency ●0.9 Typical Power Factor ●Output Short-Circuit and Open-Circuit Protection
Wide Input Active Clamp Forward Converter with Isolated Output
PMP7892: PMP7892 is an isolated active clamp forward converter capable of 42W output power. This design uses the LM5026 active clamp current-mode controller. Output voltage regulation is maintained using an LMV431 shunt regulator and opto-coupler feedback. Schottky rectifiers allow for holdup of 10ms using the stored charge of the output capacitors. The isolation voltage is 2250 VDC meeting basic insulation requirements.
700V-860V input to 16.5V@0.5A output
PMP7769: Circuit is a non isolated flyback converter. Vin is 700V to 800V max, converting to 16.5V out at a maximum current of 500mA. The design utilizes an external Error amplifier using an LMC7101 for feedback control. The circuit also uses U102 and Q101(and resistors etc etc…) as an external UVLO circuit. LM5021 features include an ultra-low (25 µA) start-up current, which minimizes power losses in the high voltage start-up network. A skip cycle mode reduces power consumption with light loads for energy conserving applications.
6V-42V Input 12V/5A SEPIC for Automotive Applications
PMP7797: PMP7797 is a wide-input SEPIC converter designed for automotive applications. This design uses the LM25037Q push-pull controller as an interleaved boost, which incorporates two gate drivers for controlling two sets of MOSFET switches. The input is 12V nominal with a working range of 6V at cold crank to 42V at load dump. An auxiliary soft-start circuit is incorporated into the design, as well as input and output LC filters. At higher input voltage this SEPIC is capable of higher output current as shown by the typical efficiency plot.
85VAC-265VAC Input, 12V/15W Output Green-Mode Flyback
PMP6833: The PMP6833 reference design uses the UCC28600 green-mode controller to generate a 12V/15W regulated output. The quasi-resonant switching of the UCC28600 allows this low-cost design to achieve a maximum load efficiency is over 83%, while the no load losses are less than 200mW.
LED w/ dimming
PMP5632: The PMP5632 is a reference design for a diagnostic device. It's a sepic LED driver with analog dimming.
230V AC input to 23V,0.42A Flyback LED Driver
PMP7752: It is a TRAIC dimmable offline flyback LED driver using LM3445. It has an adaptive constant off-time AC/DC constant current controller feature. It can be used with input supply of 230V AC and can light 7 LEDs in string supplying 420mA of current.
Universal AC-DC Buck Converter using UCC28710 Reference Design
PMP9087: The PMP9087 reference design uses Buck converter to convert universal AC input voltage (85Vac to 265Vac) to a 12V/200mA DC output with UCC28710 controller. High efficiency and circuit simplicity is achieved with quasi-resonant valley-switching operation and the utilization of Buck topology.
TPS92560 High Power 20W Boost LED Driver Reference Design
PMP8020: The main purpose of this reference design is to demonstrate a very good compatibility of Power source boost topology LED driver based on TPS92560. This LED driver is designed for converting a power source DC, AC & E-transformer to a regulated LED current. The operating conditions and performance of the reference design are as follows: 12VDC, or 12Vac / 50Hz 60Hz, or 12VAC E-transformer, Output Power 20W, 30-40V LED voltage , 500mA Regulated LED Current , 86% Typical System Efficiency, High Power Factor > 0.9, and output Open-Circuit Protection.
90 to 110Vin 12Vout @ 0.3A Non-Sync Buck Converter Reference Design
PMP10739: PMP10739 is a 3.6W buck converter using the UCC28700 controller IC. The design accepts an input voltage of 90Vin to 110Vin and provides an output of 12Vout capable of supplying 0.3A of current to the load. The UCC28700 has a frequency dithering feature for reduced EMI.
