onsemi FAN6206MY

Highly Integrated Dual-Channel Synchronous Rectification Controller

TAPE REEL / EOL Secondary Synchronous Rectifier

AC to DC Switching Converter SMPS Controller

Secondary Side PWM Cntrlr 8-Pin SOP T/R

Dual Switching Controller, PDSO8

CONTROLLER, FORWARD, DUAL, 8SOP; IC Function:Synchronous Rectification Controller; Brief Features:Two Synchronous Sampling 16 / 24bit Resolution ADCs, Separate Modulator Outputs; Operating Temperature Range:-40°C to +105°C; Digital IC Case Style:SOIC; No. of Pins:8; MSL:MSL 1 - Unlimited; SVHC:No SVHC (18-Jun-2012)

The highly integrated FAN6206 is a dual-channel synchronous rectification (SR) controller. FAN6206 allows design of a cost-effective power supply with fewer external components, especially suited for dualforward topology used to obtain higher efficiency for ATX power supplies. The primary-side control method provides synchronous rectification control for dual-forward converters that operate in continuous conduction mode (CCM). FAN6206 includes a proprietary linear-predict timing control mechanism for dual-forward converters that operate in discontinuous conduction mode (DCM) at fixed or variable frequency. PWM frequency tracking with secondary-side winding detection is provided by adding dividing resistors. The primary-side signals are generated from Fairchild’s FAN6210 (Primary-Side Synchronous Rectifier Signal Trigger for Dual-Forward Converter). The primary-side signals are transferred through a pulse transformer to the secondary-side. The benefits of this technique include simple control method and improved power system reliability.FAN6206 is available in 8-pin SOP package.