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Texas Instruments LM5180 | Demoboard TIDA-010006
65-VIN PSR flyback converter with 100-V, 1.5-A integrated power MOSFET
Overview
| Topology | Flyback Converter |
| Input voltage | 19-29 V |
| Output 1 | 20 V / 0.05 A |
| Output 2 | 20 V / 0.05 A |
| Output 3 | 20 V / 0.05 A |
| Output 4 | 20 V / 0.05 A |
Description
This reference design provides isolated positive and negative voltage rails for Insulated Gate Bipolar Transistor (IGBT) gate drivers from 24-V DC input supply. It uses a flyback power supply topology to generate four pairs of 15-V and –5-V outputs suitable for powering six IGBT gate drivers of 1 W each. The integration of the 100-V rated primary side switch within the flyback controller LM5180-Q1 together with the elimination of an auxiliary transformer winding enables a compact solution.
Features
- Quasi-resonant boundary conduction mode along with frequency modulation provides peak efficiency of 90% at balanced full load
- Supplies output power up to 1.2 W per IGBT driver
- Provides compact and cost-effective solution due to elimination of opto-coupler and transformer auxiliary winding
- Provision to turn the power supply on and off through the EN pin
- Programmable soft start limits the inrush current drawn by the power supply
Typical applications
- Variable Speed AC and Servo Drives, IGBT-Based HVDC Systems
- Industrial and Solar Inverter
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | VR(V (AC)) | Safety Class | dV/dt(V/µs) | DF @ 1 kHz(%) | RISO | Pitch(mm) | L(mm) | W(mm) | H(mm) | Packaging | L(µH) | IR(A) | ISAT(A) | fres(MHz) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WCAP-FTXX Film Capacitors, Across the mains, 10 nF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-FTXX Film Capacitors | Capacitance10 nF | Rated Voltage310 V (AC) | Safety ClassX2 | Rate of Voltage Rise500 V/µs | Dissipation Factor0.1 % | Insulation Resistance30 GΩ | Pitch10 mm | Length13 mm | Width5 mm | Height11 mm | PackagingBulk | – | – | – | – | MountBoxed THT | ||||
 | WE-TPC SMT Tiny Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TPC SMT Tiny Power Inductor | – | – | – | – | – | – | – | Length4.8 mm | Width4.8 mm | Height1.8 mm | – | Inductance10 µH | Rated Current1.3 A | Saturation Current1 A | Self Resonant Frequency45 MHz | MountSMT | ||||
750343953 | Transformer, –, – | Simulation– | Downloads– | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |