FAN302HL − mWSaver™ PWM Controller for Low Standby Power Battery-Charger Applications

Obsolete as of 25-Nov-2012

This highly integrated PWM controller, FAN302HL, provides several features to enhance the performance of general flyback converters. The constant-current control, proprietary topology enables simplified circuit designs without secondary feedback circuitry for battery-charger applications.

A proprietary Burst-Mode function with low operation current minimizes standby power consumption.

The FAN302HL controller also provides several protections. Cycle-by-cycle current limiting ensures the fixed peak current limit level, even if a short circuit occurs. The gate output is clamped at 15V to protect the power MOS from high gate-source voltage conditions. If either VS OVP or internal OTP is triggered, the circuit enters Latch Mode until AC power is removed.

Using FAN302HL, a charger can be implemented with few external components and minimized cost, compared to a conventional design or a linear transformer.

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Product Status/Packaging

Product Product & Eco Status Replacement Part Number Packaging & Packing Info **Package Marking Convention Qualification Support Compliance Certificates
2 FAN302HLMY Obsolete as of 25-Nov-2012
Green as of Oct 2010

Line 1:$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code) &K
Line 2:FAN302H
Line 3:LMYD
FIT :  1  
ESD (CDM) :  1500  V
ESD (HBM) :  5000  V
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  • Ultra-Low Standby Power Under 10mW at 230VAC
  • Constant-Current (CC) Control without Secondary-Feedback Circuitry
  • Fixed PWM Frequency at 85kHz with Frequency Hopping to Solve EMI Problems
  • High-Voltage Startup
  • Low Operating Current: 3.5mA
  • Peak-Current-Mode Control in CV Regulation
  • Cycle-by-Cycle Current Limiting
  • VDD Over-Voltage Protection (Auto-Restart)
  • VS Over-Voltage Protection (Latch Mode)
  • VDD Under-Voltage Lockout (UVLO)
  • Gate Output Maximum Voltage Clamped at 15V
  • Fixed Over-Temperature Protection (Latch Mode)
  • Available in an 8-Lead SOIC Package

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