Data sheet, Typical application (continued) – Diodes AM9789 User Manual

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Data Sheet

Single Phase Full-wave Motor Driver for Silent Fan Motor AM9789

Oct. 2012 Rev. 1. 1 BCD Semiconductor Manufacturing Limited

Typical Application (Continued)

For MSOP-8 package

Figure 9. Typical Applications of AM9789 (Note 2)

Note 2:

D1 is an ordinary diode used to filter the noise from VCC and protect IC if VCC and GND are plugged reversed.
C1=1

µF/10V typical.

R1 and R2 should be fine tuned based on system design. They can be removed according to the system
requirements.
Zener diode (D2) is an optional choice.
R

=10k

Ω typical.