AH5794 Просмотр технического описания (PDF) - Diodes Incorporated.

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AH5794

SINGLE PHASE HALL EFFECT LATCH FAN MOTOR DRIVER

Diodes Incorporated. 

AH5794

SINGLE PHASE HALL EFFECT LATCH FAN MOTOR DRIVER

Application Note

Motor Speed Control

DC Supply Voltage (VDD) Speed Control

Motor speed can be controlled by varying the VDD supply voltage between 1.8V to 6V.

With 5V nominal motor, changing VDD voltage between 5V to 1.8V, speed can be controlled from 100% to 36% typically.

Soft Switching

AH5794 uses soft switching of the motor coil current during commutation for to minimize audible switching noise and

electromagnetic interference (EMI) to provide a low noise solution.

Vdd

Vout 1

Vout 2

Vss

200µs typ.

AH5794

Document number: DS35809 Rev. 1 - 2

7 of 13

www.diodes.com

March 2012

© Diodes Incorporated

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