Copyright

© ANPEC Electronics Corp.

Rev. A.7 - Mar., 2008

www.anpec.com.tw

7

APX9268

Typical Application Circuit

Block Diagram

Note 3: In hot plug application, it’s necessary to protect against a hot plug input voltage overshoot by adding an input

zener diode between the VCC and GND to clamp the overshoot. In normal operation, the zener diode isn’t

stressed because output current doesn’t reverse to VCC.

OSC

Lock

Detection

Hall

Bias

HB

IN+

IN -

OUT1

OUT2

FG

TSD

VCC

GND

+

-

+

-

150k

Ω

+

_

500

Ω

500

Ω

150k

Ω

1

OUT2

2

IN+

3

HB

4

IN-

8

7

OUT1

6

VCC

5

FG

GND

Hall

D1

R

V

IN

R1

D2

Zener

Pull High

Voltage

C1

6V