FAN7532 Ver la hoja de datos (PDF) - Fairchild Semiconductor

Número de pieza

componentes Descripción

Fabricante

FAN7532

Ballast Control IC

Fairchild Semiconductor 

Internal Block Diagram

CPH 5

10μA 1.5μA

Vz

2.9V

CT 6

5V

6.2ICT

1.70V

5.15V

RT 8

RPH 7

Current

Source

Current

Source

4

GND

5V

2.9V

1

2.1

Ict

S

Irt

Q

R

Latch

Irt=Vref/Rt

Iph=Vref/Rph

9V Vsup

Bias

Current

OLP

RQ

SQ

Frequency

Divider

&

Driving

Logic

OLP

Shutdown

Signal

UVLO

1.8V

11 Vcc

15.6V

11.8V

1 VB

HVG

Driver

Level

Shift

Vcc

16 HO

15 VS

13 LO

12 PGND

9 OVP

OLP

OLP : Open Lamp Protection

10

2V

TSD

OLP

Figure 2. Functional Block Diagram of FAN7532

VCPH

2V

5V

FAN7532 Rev. 00

© 2006 Fairchild Semiconductor Corporation

FAN7532 Rev. 1.0.2

3

www.fairchildsemi.com

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