Secondary-Side Synchronous Rectifier Controller for
Works in Discontinuous Conduction Mode (DCM).
Adaptive Turn-off Trigger Blanking Time for easier
Turn-on Trigger Blanking Time (Minimum-OFF
Time) for Improved Noise Immunity
Supports High-Frequency Applications up to
Minimum Turn-on Delay (20 ns)
Adaptive Turn-off Threshold Control for Minimized
SR MOSFET Body Diode Conduction (Dead-Time
is independent of SR MOSFET)
Wide Voltage Range for LDO Input up to 30 V
Small Footprint: SOT-23 6 Pin Package
The FAN6240M6X is a secondary-side synchronous
rectifier (SR) controller for an isolated flyback converter
operating in Discontinuous Conduction Mode (DCM).
The adaptive dead-time control algorithm minimizes the
body diode conduction of SR MOSFET while
guaranteeing stable and robust SR operation against
noise and disturbance caused by the circuit parasitic.
30 V rated input voltage LDO and Low VDD Under-
Voltage Lockout (UVLO) voltage allow FAN6240M6X to
be used for wide ranges of switched mode power supply
output voltage without additional circuit.
Battery Chargers for Smart Phones, Feature
Phones, and Tablet PCs
AC-DC Adapters for Portable Devices that Require
-40C to +125C
6-Lead, SOT23, JEDEC MO-178 Variation AB,
1.6 mm Wide
Tape & Reel
© 2016 Fairchild Semiconductor Corporation
FAN6240 • Rev. 1.0