SRK2001 Description
The SRK2001 controller implements a control scheme specific for secondary side synchronous rectification in LLC resonant converters that use a transformer with center tap secondary winding for full wave rectification. It provides two high current gate drive outputs, each capable of directly driving one or more N-channel power MOSFET. Each gate driver is controlled separately and an interlock logic circuit prevents...
SRK2001 Key Features
- Secondary side synchronous rectification controller optimized for LLC resonant converter
- Dual gate driver for N-channel MOSFET
- Adaptive turn-off logic
- Turn-on logic with adaptive masking time
- Auto-pensation of parasitic inductance
- Low consumption mode: 50 μA quiescent current
- VCC operating voltage range 4.5 V to 32 V
- High voltage drain-to-source Kelvin sensing for each SR MOSFET
- 35 ns total delay at turn-off
- Protection against current reversal