STMicroelectronics SRK2001
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 the two synchronous rectifier MOSFET from conducting simultaneously.| Part No. | SRK2001 |
|---|---|
| Datasheet | SRK2001 Download |
| Manufacturer |  STMicroelectronics |
| Description | Adaptive synchronous rectification controller |
| Buy | Stock & Price |
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-compensation 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
● Safe management of load transient, light-load and startup conditions
● Intelligent automatic sleep mode at light-load with user programmable enter/ exit load levels, with soft transitions and function disable
● Programmable exit load levels from burst mode
● Compatible with standard level MOSFET
● SSOP10 package
APPLICATIONS
● AC-DC adapters● All-in-one PC
● High-end flat panel TV
● 80+/85+ compliant ATX SMPS
● 90+/92+ compliant SERVER SMPS
● Industrial SMPS
DESCRIPTION
The control scheme ensures that each synchronous rectifier is switched ON as the corresponding half-winding starts conducting and OFF as its current falls to zero.
