FAN7602CMX データシートの表示（PDF） - Fairchild Semiconductor

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FAN7602CMX

Green Current Mode PWM Controller

Fairchild Semiconductor 

Typical Application Circuit

Application

Output Power

Adaptor

48W

Input Voltage

Universal input

(85 ~ 265 VAC)

Output Voltage

12V

Features

ƒ Low stand-by power (<0.15W at 265 VAC)

ƒ Constant output power control

Key Design Notes

ƒ All the IC-related components should be placed close to IC, especially C107 and C110.

ƒ If R106 value is too low, there can be subharmonic oscillation.

ƒ R109 should be designed carefully to make the VCC voltage higher than 8V when the input voltage is 265 VAC at

no load.

ƒ R110 should be designed carefully to make the VCC voltage lower than OVP level when the input voltage is 85 VAC

at full load.

ƒ R103 should be designed to keep the MOSFET Vds voltage lower than maximum rating when the output is

shorted.

© 2009 Fairchild Semiconductor Corporation

FAN7602C • Rev. 1.0.0

12

www.fairchildsemi.com

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