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SRK2000 - AC-DC Conversion Synchronous rectifier smart driver

General Description

The SRK2000 smart driver 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.

Key Features

  • Secondary-side synchronous rectifier controller optimized for LLC resonant converter Safe management of load transient, light load and start-up condition Intelligent automatic sleep mode at light load Dual gate driver for n-channel MOSFETs with 1 A source and 3.5 A sink drive current Operating voltage range 4.5 to 32 V Programmable UVLO with hysteresis 250 µA quiescent consumption Operating frequency up to 500 kHz SO8 package SO-8 switched o.

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DataSheet.in SRK2000 Synchronous rectifier smart driver for LLC resonant converter Preliminary data Features ■ ■ ■ ■ ■ ■ ■ ■ ■ Secondary-side synchronous rectifier controller optimized for LLC resonant converter Safe management of load transient, light load and start-up condition Intelligent automatic sleep mode at light load Dual gate driver for n-channel MOSFETs with 1 A source and 3.5 A sink drive current Operating voltage range 4.5 to 32 V Programmable UVLO with hysteresis 250 µA quiescent consumption Operating frequency up to 500 kHz SO8 package SO-8 switched off as its current goes to zero. A unique feature of this IC is its intelligent automatic sleep mode.