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Texas Instruments LM5180 | Demoboard PMP30629
Isolated 2.5-W SiC & IGBT gate-drive reference design with integrated switch PSR flyback converter
Overview
| Topology | Flyback Converter |
| Input voltage | 9-36 V |
| Switching frequency | 12-350 kHz |
| Output 1 | 15 V / 0.13 A |
| Output 2 | -4 V / 0.13 A |
| IC revision | B |
Description
This document analyzes two methods to increase the drive current from integrated gate-driver ICs. The performance of both the methods is compared by building boards and testing them at various conditions.These circuits are discussed in further detail in subsequent sections.
Features
- Designed for reliable and rugged applications– Wide input voltage range of 4.5 V to 65 V– Robust solution with only one component crossing the isolation barrier– ±1.5% total output regulation accuracy– Optional VOUT temperature compensation– 6-ms internal or programmable soft start– Input UVLO and thermal shutdown protection– Hiccup-mode overcurrent fault protection– –40°C to +150°C junction temperature range
Typical applications
- Multi-output rails for analog input modules
- Motor drive: IGBT gate drive supplies
- Building automation HVAC systems
- Isolated field transmitters and field actuators
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IR(A) | ISAT(A) | fres(MHz) | Mount | VIN(V) | VOut1(V) | VOut2(V) | PO(W) | CWW 1(pF) | fswitch(kHz) | n | Version | IC Reference | Z @ 100 MHz(Ω) | Zmax(Ω) | Test Condition Zmax | IR 2(mA) | RDC max.(mΩ) | Type | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-TPC SMT Tiny Power Inductor, 10 µH, 1.3 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TPC SMT Tiny Power Inductor | Inductance10 µH | Rated Current1.3 A | Saturation Current1 A | Self Resonant Frequency45 MHz | MountSMT | – | – | – | – | – | – | – | VersionSMT | – | – | – | – | – | DC Resistance150 mΩ | – | ||||
 | WE-AGDT Auxiliary Gate Drive Transformer, 18 µH, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-AGDT Auxiliary Gate Drive Transformer | Inductance18 µH | – | Saturation Current1.6 A | – | MountSMT | Input Voltage 9 - 18 | Output Voltage 115 V | Output Voltage 2-4 V | Total Output Power3 W | Interwinding Capacitance7 pF | Switching Frequency 350 | Turns Ratio2.25:3.5:1 | VersionFlyback | IC ReferenceLM5180 | – | – | – | – | – | – | ||||
| WE-AGDT Auxiliary Gate Drive Transformer, 18 µH, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-AGDT Auxiliary Gate Drive Transformer | Inductance18 µH | – | Saturation Current1.95 A | – | MountSMT | Input Voltage 9 - 18 | Output Voltage 119 V | – | Total Output Power3 W | Interwinding Capacitance6.8 pF | Switching Frequency 350 | Turns Ratio1:2 | VersionFlyback | IC ReferenceLM5180 | – | – | – | – | – | – | ||||
| WE-AGDT Auxiliary Gate Drive Transformer, 27 µH, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-AGDT Auxiliary Gate Drive Transformer | Inductance27 µH | – | Saturation Current1.5 A | – | MountSMT | Input Voltage 18 - 36 | Output Voltage 115 V | Output Voltage 2-4 V | Total Output Power5 W | Interwinding Capacitance7 pF | Switching Frequency 350 | Turns Ratio3.5:3.5:1 | VersionFlyback | IC ReferenceLM5180 | – | – | – | – | – | – | ||||
| WE-AGDT Auxiliary Gate Drive Transformer, 27 µH, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-AGDT Auxiliary Gate Drive Transformer | Inductance27 µH | – | Saturation Current2 A | – | MountSMT | Input Voltage 18 - 36 | Output Voltage 119 V | – | Total Output Power5 W | Interwinding Capacitance8.2 pF | Switching Frequency 350 | Turns Ratio1:1.2 | VersionFlyback | IC ReferenceLM5180 | – | – | – | – | – | – | ||||
 | WE-CBF SMT EMI Suppression Ferrite Bead, –, 4.5 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CBF SMT EMI Suppression Ferrite Bead | – | Rated Current4.5 A | – | – | MountSMT | – | – | – | – | – | – | – | VersionSMT | – | Impedance @ 100 MHz22 Ω | Maximum Impedance40 Ω | Maximum Impedance1000 MHz | Rated Current 26000 mA | DC Resistance8 mΩ | TypeHigh Current | ||||
750318212 | Flyback Transformer, –, – | Simulation– | Downloads– | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Flyback Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
750318213 | Flyback Transformer, –, – | Simulation– | Downloads– | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Flyback Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |