Automotive 10-V/80-V Ultra-Wide Vin: 12-V Vout Flyback Reference Design for 48-V Car Battery
Description
The TIDA-01344 reference design is a 24W: automotive 48V battery front-end power supply that generates 12V from a wide input range of 10V to 80V DC: up to 100V transient for LV148 standard compliance. The system consists of EMI filters for CISPR 25 compliance and circuit protection for clamping high voltage transients to safe levels for downstream circuitry. The flyback controller implements primary side regulation with no optocoupler: allowing for extended life time and smaller board design: and the flyback transformer is designed and qualified as automotive AEC-Q200 Grade 1.
Features
- Wide Vin flyback converter over the input voltage of 10V to 80V DC: 100V transient: output voltage 12V and current up to 2AProtection for clamping high voltage transients to safe levels for downstream circuitryAutomotive AEC-Q200 Grade 1-qualified transformer designPrimary side regulation with no optocoupler for extended lifetime and compact board designTested for CISPR25-conducted EMI (Class 5)
Applications
- Pump
- eTurbo/charger
- Engine fan
- Traction inverter-low voltage
- Unidirectional 48 V to 12 V
- 48-V to 12-V DC/DC converter
Product Categories
- Power management