The PMP20612 reference design is a high efficiency AC-DC LED driver reference design with very low total harmonic distortion (THD). This design uses CCM PFC with the UCC28180 controller to provide power factor correction (PFC) functionality from 108VAC to 305VAC input. A two-switch Flyback converter with the UCC28740 controller is used to provide 200V/1A constant current (CC)/ constant voltage (CV). The voltage sensing and current sensing circuit at the output side with the TL431 and INA180 allow an external circuit to process a dimming function. As a result this design achieves 92.9% peak efficiency at 230VAC/50Hz input. At 277VAC, the board also has less than 20% THD with 20% load.
The PMP20634 reference design is an isolated DCM flyback design that provides a universal AC line input from 85V to 265V and produces a 12V output capable of handling a 12W load. The design uses the UCC28730 controller to achieve ultra-low standby power at no load. It achieves 85% efficiency in high and low voltage lines and measures 1 x 3 inches on a 2-layer circuit board.
This reference design is a high efficiency, high power density and light weight resonant converter reference design. It converts a 390V input to a 48V/1kW output. The PMP20637 power stage has over 140W/in^3 power density. The whole board weight is less than 210g. With fixed 950kHz switching frequency in steady state, 97.6% peak efficiency is achieved.
PMP20682 is a synchronous buck converter reference design using the LM5141-Q1 synchronous buck controller IC. This design accepts input voltages from 5V to 40V and provides a 3.3V output capable of delivering 10A to the load. The input contains an EMI filter. Optional frequency jitter and slew rate control features are available for additional EMI control. This design provides mounting holes for the bottom MOSFET heat sink.
Continuous-Conduction-Mode (CCM) Totem-pole power factor correction (PFC) is a simple but efficient power converter. To achieve 99% efficiency, there are many design details that need to be taken into account. The PMP20873 reference design uses TI’s 600VGaN power stage, LMG3410, and TI’s UCD3138 digital controller. The design overview provides more details on the CCM Totem-Pole topology operation, gives the detail design considerations of the circuit, and provides magnetics and firmware control design considerations. This converter design operates at 100KHz. A soft start at AC line crossover minimizes current spike and lowers THD. The PFC Firmware measures AC current and PFC output voltage in real-time and predicts the dead time needed for the switch node to complete a full swing. The adaptive dead time control effectively minimizes both switching loss and GaN FET body diode conduction loss. A GUI is available to support parameter setting and control loop tuning.
This reference design is a high power PoE Powered Device (PD) plus active clamp forward converter. The TPS2373 high power PD controller EVM (TPS2373-4EVM-758) provides all functions necessary to implement an IEEE802.3bt-ready PD. This is paired up with an active clamp forward converter utilizing the UCC2897A controller. The high efficiency 24V/3A output using synchronous rectifiers is ideally suited for high power PoE applications such as IP security cameras and LED lighting applications.
In need of an IEEE802.3bt-ready PSE controller? Check out the TPS23881.
This reference design is a tiny 3-W auxiliary power supply reference design driving four outputs – two of them isolated to power some drivers. The wide input range is 6 V to 60 V, so 1:10 - here a discrete LDO is needed to expand BIAS voltage for controller LM51551. For lowest EMI, a SEPIC topology is used to ensure low reflected ripple and to avoid RF ringing at the switch node. The control loop is closed on the primary side to save additional cost of optoisolator. Dual feedback allows any weighted feedback in between 3.3-V / 11-V outputs.
This reference design is a battery initialization reference design solution for automotive and battery applications. The module enables a high efficiency single stage conversion for charging and discharging the battery. This design features a 0.1% accurate current control loop using the high performance INA225 current sense amplifier. The design was achieved in a compact form factor (40mmX143mmX20mm).
The PMP4489 reference design is a dedicated USB-C PD2.0 DFP 5V/12V 3A output flyback converter featuring the secondary-side regulation UCC28740DR, which provides constant voltage and constant current functionality. This design features less than 75mW standby power consumption (DOE 6 and CoC V5 Level 2 compliant). The secondary voltage and secondary balanced synchronous rectifier UCC24636 achieves high efficiency with maximum SR on-time. The TPS25740 is fully compatible with USB Power Delivery 2.0 providers and Type-C downstream ports (DFP).
PMP4497 is a GaN-based reference design solution suitable for Vcore applications such as FPGA and ASIC. With high integration and low switching losses, the GaN module LMG5200 enables high-efficiency single-stage 48V to 1.0V solutions, replacing traditional two-stage solutions. This reference design demonstrates the GaN performance and system advantages of this solution compared to two-level solutions. Low cost ER18 flat PCB transformer embedded on board. This reference design is compact in size (45mm*26mm*11mm). Further size reduction can be achieved by optimizing frequency and components.
The PMP5242 reference design uses the UCC28810 in a single-stage, PFC-SEPIC configuration to drive a 22W LED load. This supply can operate from an input ranging from 85VAC up to 265VAC. It is capable of driving LED strings from 156V up to 208V at a fixed current of 110mA with efficiency over 89%.
This reference design operates over an 8V - 16V input range and delivers 5V @ 1A at the output. This design is content from the presentation material of the TI Power Workshop. This design has been built and tested and the design files and test report are included. This is a good low cost design that demonstrates the fundamentals of a non-isolated, non-synchronous dc-dc buck converter.
The PMP7800.1 reference design is a dropout design using the LMR14203 for computer and peripheral applications. It generates a non-isolated 3.3 volt output (0.07 amps) from a 21.6 to 26.4 volt DC input.
PMP9750 is a CLL resonant converter reference design with an input voltage of 400VDC and an output voltage of 28V/9A. Unlike the LLC series of resonant converters, the CLL resonant converter used in the PMP9750 utilizes its output inductor to minimize the size of the resonant tank. With the resonant controller UCC25600 and bridge driver UCC27714, the PMP9750 achieves a peak efficiency of 95.7%.
This reference design uses the TPS61088 to provide an envelope tracking power supply circuit for an audio power amplifier (PA). By adding the audio envelope signal to the FB pin, the output voltage of the TPS61088 can be varied according to the envelope of the audio signal. Therefore TPS61088 can provide dynamically changing power supply voltage to the PA. As a result, the PA maintains high efficiency over the entire output power range.
This reference design delivers an accurate output current limit solution for the TPS61088 boost converter. This feature is realized by an output current sense resistor and a low cost operational amplifier. When the output current is higher than the current limit point, the output of the operational amplifier will be higher than the TPS61088’s 1.204V reference voltage. So the output voltage drops. If the output current continuously increases, the output voltage will be further decreased. Thus the maximum output power will always be limited below a certain level.
This shunt-based, isolated current measurement unit enables high-precision current measurement without the use of current transformers (CTs). Isolation is achieved through the AMC1304 which integrates high voltage isolation and a Delta-Sigma modulator . This solution avoids the need to use CTs, which is highly valued by customers as it reduces board size, product weight, crosstalk and EMI in the system, and reduces mechanical requirements by replacing CTs with shunts. problems, potentially extending product life.
The TIDA-00136 reference design is a high-speed serial video interface that allows remote automotive WVGA TFT LCD displays using the OpenLDI (LVDS) interface to be connected to a video processing system. This design uses TI's FPD-Link II SerDes technology to transmit uncompressed video data over shielded twisted pair or coaxial cable. Examples of applications include rear-seat entertainment systems, automotive instrument clusters and head unit displays. This design combines the DS99R421Q1-EVK and DS90UR124-Q1 boards to form the solution.
The design converts an 8V-42V DC input into a 5.1V output and is protected by the TPS2546-Q1 programmable current protection switch. Its handshake protocol enables fast charging of smartphones/tablets/handheld devices. By detecting the load current and adjusting the DC/DC output voltage, this design can implement linear USB cable differential compensation function to keep the USB port voltage within a limited range. This design is suitable for devices such as vehicle-mounted hosts and remote USB hubs.
This reference design is a resistance thermometer (RTD) front end with an IO-Link compatible sensor transmitter. This design uses the well-proven IO-LINK PHY and stack, and a 6mm wide form factor (compatible with standard M12 connectors) to quickly start IO-Link device development. TI also provides test results demonstrating the high accuracy of this RTD design (measurement error of 0.17°C over the -200°C to 850°C temperature range). The design also complies with IEC 61000-4-2, IEC 61000-4-4, IEC 61000-4-5 and IEC 60255-5 standards, ensuring reduced time to market for real-world industrial applications. This design comes with a software package that provides a complete solution to speed your sensor transmitter time to market.
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