FAN7528 查看數據表（PDF） - Fairchild Semiconductor

零件编号

产品描述 (功能)

生产厂家

FAN7528

Dual-Output, Critical Conduction Mode PFC Controller

Fairchild Semiconductor 

Typical Application Circuit

Application

Adapter

Output power

100W

Input voltage

Universal input

(90~264 Vac)

Features

„ High efficiency (>90% at 90 Vac input)

„ Low THD (total harmonic distortion) (<10% at 264 Vac input)

„ Dual-output control

Output voltage

389V/232V

Key Design Notes

„ Diode D4 is used to prevent IC malfunction that can happen if the CS pin voltage is lower than -0.3V.

„ Important components for low THD are R2, R5, and C11.

1. Schematic

BD

NTC

C3 C4

C2

LF1

C1

V1

F1

C5

R3

T1

VAUX

R4

C10

R5

D3

ZD1

R6

D1 C11

876 5

D2

Q1

R9

FAN7528

R2

12 3 4

R8

R7

C8 C7 R1

C6

D4

PFC OUTPUT

R10

C9

R11

AC INPUT

Figure 39. Schematic

FAN7528 Rev. 1.00

© 2005 Fairchild Semiconductor Corporation

FAN7528 Rev. 1.0.6

15

www.fairchildsemi.com

Share Link: