18- to 36-VDC input: 25-W DC/DC active clamp forward reference design
Description
This active clamp forward design converts an 18-V to 36-V input to a 5-V: 25-W output. The reference design uses the UCC2897A advanced current-mode active-clamp PWM controller to simplify active clamp implementation with a P-channel auxiliary FET. The design achieves 91.7% peak efficiency at 24-V input. The active clamp topology allows for self-driving synchronous rectifier (SR) FETs: lowering cost and complexity on the secondary side. This design also uses a catalog transformer and inductor.
Features
- Achieves 90% efficiency from 30% to 100% load at 24-V inputSelf-driven SR (using CSD17579Q3A MOSFETs) reduces drive complexityUses catalog magnetics for a cost-effective solution
Applications
- Mixed module (AI
- AO
- DI
- DO)
Product Categories
- Power management
| Application Area | End Equipment |
|---|---|
| Mixed module (AI | https://www.ti.com/solution/mixed-module-ai-ao-di-do#referencedesigns |