SRK2000 is an intelligent synchronous rectifier driver from Infineon for LLC resonant converters. It features protection against current reversal, safe management of load transients, light load and startup conditions, and intelligent automatic sleep mode.
The SRK2000 is a synchronous rectifier smart driver designed specifically for LLC resonant converters using a transformer with a center-tap secondary winding. It provides two high-current gate-drive outputs capable of driving N-channel MOSFETs, with an interlocking logic circuit to prevent simultaneous conduction.
| Operating voltage range | 4.5 to 32 V |
|---|---|
| Quiescent consumption | 250 µA |
| Operating frequency | up to 500 kHz |
| Package type | SO8 |
| Output source peak current | 1 A |
| Output sink peak current | 3.5 A |
| Junction temperature operating range | -40 to 150 °C |
It is optimized for secondary-side synchronous rectification in LLC resonant converters.
It enters an intelligent automatic sleep-mode to reduce consumption when the converter is in a low-power operating condition.
The device includes protection against current reversal.