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Texas Instruments UCC25800 | Demoboard PMP22835
Isolated IGBT and SiC Driver Bias Supply Reference Design for Traction-Inverter Applications
Overview
| Topology | LLC Resonant Converter |
| Input voltage | 24 V |
| Output 1 | 20 V / 0.3 A |
| Output 2 | -4 V / 0.3 A |
Description
This isolated open-loop LLC transformer driver converter provides dual +20-V and -4-V outputs up to 6 W for traction inverter applications. The LLC topology allows the transformer to have significant leakage inductance, but a much smaller primary-secondary capacitance, which significantly reduces common-mode current injection through the bias transformer. This reference design offers a high level of integration and high efficiency in a compact form factor.
Features
- Open-Loop LLC transformer driver
- Ultra-low EMI
- 9-V ~ 34-V supply range
- 6-W output power with 24-V input
- Resistor programmable switching frequency from 100 kHz to 1.2 MHz
- Synchronization to external clock
- Programmable maximum dead-time with automatic dead-time adjustment
- Under voltage lockout
- Adjustable over-current protection thresholdExternal disable function
- Input over voltage protection
- Over temperature protection (TSD)
- Fault-code output for system intelligence
- Latched and fault-auto-restart versions available
- 8-Pin DGN package with thermal pad
Typical applications
- Automotive traction inverter,IGBT and SiC gate driver bias, Automotive DC/DC,automotive on-board charger, EV charging station, automotive super charger, UPS and solar inverters, Industrial motors, elevators, and escalators.
More information
Products
| Order Code | Datasheet | Downloads | Product series | VIN (V) | VOut1 (V (DC)) | PO (W) | CWW 1 (pF) | L (µH) | ∫Udt (Vµs) | fswitch (kHz) | n | Version | IC Reference | IOut1 (A) | Type of Insulation | NPRI : NSEC | VT (V (RMS)) | L (mm) | W (mm) | H (mm) | Mount | Pins | Application | PCB/Cable/Panel | Modularity | Type | Wire Section | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 750313734 | SPEC | 7 files | WE-PPTI Push-Pull Transformers | 5 V (DC) | 5 | – | 5.25 | 340 | 10 | 300 - 620 | 1:1.1 | Push-Pull | – | 0.8 | Reinforced | 1:1.1 | 5000 | 9.14 | 12.7 | 7.62 | SMT | – | – | – | – | – | – | |
 | 750319177 | SPEC | 7 files | WE-AGDT Auxiliary Gate Drive Transformer | 7.5 | 13 | 4.55 | 0.68 | 16.5 | 36 | 500 | 1:1.67 | LLC | UCC25800 | 0.64 | – | – | 4000 | 11.3 | 10.95 | 11.94 | – | – | – | – | – | – | – | |
| 750319331 | SPEC | 7 files | WE-AGDT Auxiliary Gate Drive Transformer | 13 | 11.5 | 6 | 1.3 | 50 | 60 | 500 | 1:1 | LLC | UCC25800 | 0.76 | – | – | 4000 | 11.3 | 10.95 | 11.94 | – | – | – | – | – | – | – | |
 | 691313710002 | SPEC | 6 files | WR-TBL Series 3137 - 5.00 mm Close Horizontal PCB Header | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 12 | – | – | THT | 2 | Pluggable | PCB | No | Horizontal | – | |
| 691313710003 | SPEC | 6 files | WR-TBL Series 3137 - 5.00 mm Close Horizontal PCB Header | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 17 | – | – | THT | 3 | Pluggable | PCB | No | Horizontal | – | |
 | 691352710002 | SPEC | 3 files | WR-TBL Series 3527 - 5.00 mm Vertical | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 10 | – | – | Cable | 2 | Pluggable | Cable | No | Vertical | 12 to 22 (AWG) 3.31 to 0.129 (mm²) | |
| 691352710003 | SPEC | 3 files | WR-TBL Series 3527 - 5.00 mm Vertical | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 15 | – | – | Cable | 3 | Pluggable | Cable | No | Vertical | 12 to 22 (AWG) 3.31 to 0.129 (mm²) |
| Order Code | Datasheet | |
|---|---|---|
| 750313734 | SPEC |
| 750319177 | SPEC |
| 750319331 | SPEC |
| 691313710002 | SPEC |
| 691313710003 | SPEC |
| 691352710002 | SPEC |
| 691352710003 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Downloads | Product series | VIN (V) | VOut1 (V (DC)) | PO (W) | CWW 1 (pF) | L (µH) | ∫Udt (Vµs) | fswitch (kHz) | n | Version | IC Reference | IOut1 (A) | Type of Insulation | NPRI : NSEC | VT (V (RMS)) | L (mm) | W (mm) | H (mm) | Mount | Pins | Application | PCB/Cable/Panel | Modularity | Type | Wire Section | Samples |
|---|