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FAN6240

Fairchild Semiconductor
Part Number FAN6240
Manufacturer Fairchild Semiconductor
Description Secondary-Side Synchronous Rectifier Controller
Published Aug 12, 2021
Detailed Description FAN6240 — Secondary-Side Synchronous Rectifier Controller for Flyback Converters July 2016 FAN6240 Secondary-Side Sync...
Datasheet PDF File FAN6240 PDF File

FAN6240
FAN6240

Overview
FAN6240 — Secondary-Side Synchronous Rectifier Controller for Flyback Converters July 2016 FAN6240 Secondary-Side Synchronous Rectifier Controller for Flyback Converters Features  Works in Discontinuous Conduction Mode (DCM).
 Adaptive Turn-off Trigger Blanking Time for easier use  Turn-on Trigger Blanking Time (Minimum-OFF Time) for Improved Noise Immunity  Supports High-Frequency Applications up to 200 kHz  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 Description 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 UnderVoltage Lockout (UVLO) voltage allow FAN6240M6X to be used for wide ranges of switched mode power supply output voltage without additional circuit.
Applications  Battery Chargers for Smart Phones, Feature Phones, and Tablet PCs  AC-DC Adapters for Portable Devices that Require CV/CC Control Ordering Information Part Number Operating Temperature Range FAN6240M6X -40C to +125C Package 6-Lead, SOT23, JEDEC MO-178 Variation AB, 1.
6 mm Wide Packing Method Tape & Reel © 2016 Fairchild Semiconductor Corporation FAN6240 • Rev.
1.
0 www.
fairchildsemi.
com FAN6240 — Secondary-Side Synchronous Rectifier Controller for Flyback Converters Application Diagram LCM AC IN F1 Fuse U3 Photo BR1 C1 C5 R11 L1 C2 R3 C3 R4 R1 D1 R2 R5 TX1 NP NS Q1 9 FB 1 HV Gate 4 8 IMIN CS 3 U1 10 GNDFAN602VDD 5 FMAX 7 NC VS 6 2 C4 R6 R7 R8 D2 R9 NA C9 R10 CY R12 C6 Q2 R13 R14 11 GATE DRAIN 6 22 ...


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