pin assignment

AM7232S AM7232S


1) Slope adjust mode for VH and VL pin control.
2) Soft switched drive.
3) PWM speed control.
4) Rotating speed pulse signal (FG) output.
5) Incorporating lock protection and automatic restart circuit.
6) Power Tr incorporated.
7) Hall Bias voltage built-in.
8) Soft start function built-in for reducing power up acoustic noise.
9) Stop mode duty adjustable.


This is the summary of application for AM7232S optimum for driving 12V fan for general
consumer equipment. The most attractive function of AM7232S is slope adjust by external
resistor, that can meet most of fan request. This IC employs soft switching drive, Bi-CMOS
process, and realizes silent drive, low ON resistor, and low power consumption. This also
incorporate lock protection and auto restart circuit which does not require external capacitor.

Optimum for driving 12V fan for general consumer equipment

Data Sheet

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