AH5795

SINGLE PHASE HALL EFFECT LATCH SMART

FAN MOTOR CONTROLLER

AH5795

Document number: DS35277 Rev. 1 - 2

3 of 13

www.diodes.com

August 2011

© Diodes Incorporated

Lock Detect,

Shutdown and

Automatic Re-Start

Soft

Switching

Control

Hall

Sensor

AMP

Vdd

FG

O1

O2

Power

Vss

Logic

Block

Full Bridge

Driver

PWM

Frequency

Generator

Notes:

3. The AH5795 has an open-drain tachometer FG output that follows the magnetic change frequency. Typically a pull-up resistor of 10K

Ω is

recommended from FG pin to the supply voltage.