AH9281/82

Document number: DS41221 Rev. 2 - 2

2 of 12

www.diodes.com

July 2018

© Diodes Incorporated

AH9281/82

Typical Applications Circuit

5

2

3

1

4

VCC GND FG/RD

DO

DOB

4.7k

AH9281/2

GND

Coil 1

Coil 2

C3

2.2

mF

C2

2.2

mF

C1

2.2

mF

FG/RD

D1

R1

47

W

R2

4.7

W

R3

4.7

W

Note 1:

1. D1 is an ordinary diode used to filter the noise from VCC and protect IC if VCC and GND are plugged reversed.

2. R1=47

Ω typical.

3. C1=C2=C3=2.2

μF typical, electrolytic capacitors are better. They should be fine tuned based on system design.

4. R2=R3=4.7

Ω typical. They can be cancelled according to system requirement.

Ω typical.