ISL81801 Description
Datasheet ISL81801 80V Bidirectional 4-Switch Synchronous Buck-Boost Controller The ISL81801 is a true bidirectional 4-switch synchronous buck-boost controller with peak and average current sensing and monitoring at both ends. With wide input and output voltage ranges, the controller is suitable for industrial, telemunication, and after-market automotive applications. The ISL81801 uses a proprietary buck-boost...
ISL81801 Key Features
- Single inductor 4-switch buck-boost controller
- On-the-fly bidirectional operation with independent
- Proprietary algorithm for smoothest mode transition
- MOSFET drivers with adaptive shoot-through
- Wide input voltage range: 4.5V to 80V
- Wide output voltage range: 0.8V to 80V
- Supports startup into pre-biased rails
- Programmable frequency: 100kHz to 600kHz
- External sync with clock out or frequency dithering
- External bias for higher efficiency for 8V to 36V input