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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 | Application | C | VR (V (AC)) | Safety Class | dV/dt (V/µs) | DF @ 1 kHz (%) | RISO | Operating Temperature | Pitch (mm) | L (mm) | W (mm) | H (mm) | Packaging | L (µH) | IR (A) | ISAT (A) | fres (MHz) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 890334023006 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-FTXX Film Capacitors | Across the mains | 10 nF | 310 | X2 | 500 | 0.1 | 30 GΩ | -40 °C up to +105 °C | 10 | 13 | 5 | 11 | Bulk | – | – | – | – | Boxed THT | ||
 | 744042100 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-TPC SMT Tiny Power Inductor | – | – | – | – | – | – | – | -40 °C up to +125 °C | – | 4.8 | 4.8 | 1.8 | – | 10 | 1.3 | 1 | 45 | SMT | ||
| 750343953 | SPEC | – | – | Active i| Production is active. Expected lifetime: >10 years. | Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 890334023006 | SPEC | |
| 744042100 | SPEC | |
| 750343953 | SPEC | – |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Application | C | VR (V (AC)) | Safety Class | dV/dt (V/µs) | DF @ 1 kHz (%) | RISO | Operating Temperature | Pitch (mm) | L (mm) | W (mm) | H (mm) | Packaging | L (µH) | IR (A) | ISAT (A) | fres (MHz) | Mount | Samples |
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