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Texas Instruments TPS54308 | Demoboard PMP40994
4-W dual-channel isolated gate driver with 1500-V isolation for IGBT reference design
Overview
| Topology | FlyBuck (Double Buck) |
| Input voltage | 10-20 V |
| Output 1 | 23 V / 0.08 A |
Description
This reference design is a compact, dual-channel output isolated gate driver board design for insulated-gate bipolar transistor (IGBT) in solar inverter, PCS, UPS and motor driver applications. The isolated bias power is implemented with fly-buck topology using TPS54308 which offers two-channel isolated outputs with 1500-V isolation while achieving good voltage regulation. The design is a single-layer PCB board for easy manufacturing.
Features
- Compact, isolated bias power plus isolated gate driver
- Provides 8% output voltage regulation with a loose regulated 12-V power rail input
- Each channel can support a maximum of two watts per IGBT
- Each channel has split +15-V, -8-V power rails for the gate driver
- Provides 1500-V isolation between primary and secondary as well as secondary 1 to secondary 2
- Single-layer PCB for easy manufacturing
Typical applications
- Energy storage power conversion system (PCS)
- String inverter, Three phase UPS, AC drive power stage module