Diodes AH9280 Manuel d'utilisateur télécharger pdf (Page 10)

Data Sheet

Two Phase Dual-coil High Voltage Smart Fan Motor Driver AH9280

Oct. 2011 Rev. 1. 2 BCD Semiconductor Manufacturing Limited

Typical Application (Continued)

AH9280

VCC

DOB

GND

=5V or 12V

Coil 1 Coil 2

2.2

ZD1

35V

ZD2

35V

Figure 15. Typical Application 2 of AH9280 (Note 3)

Note 3:

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=47Ω typical.

3. C1 =2.2µF typical, electrolytic capacitors are better. They should be fine tuned based on system design.

4. ZD1 and ZD2 breakdown voltage are 35V.

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Diodes AH9280 Manuel d'utilisateur Page 10