AH5798(2009) 데이터 시트보기 (PDF) - Diodes Incorporated.

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AH5798
(Rev.:2009)

SINGLE PHASE HALL EFFECT LATCH SMART FAN MOTOR CONTROLLER

Diodes Incorporated. 

Block Diagram

AH5798

SINGLE PHASE HALL EFFECT LATCH SMART

FAN MOTOR CONTROLLER

Vdd

Power

Hall

Sensor

AMP

Vss

FG

Frequency

Generator

O1

Logic Soft Switching Full Bridge

Block

Control

Driver

O2

Lock

Detector

Operating

S

Magentic

N

O2

O1

FG

Normal spinning

Ton Toff

Mechanical lock

motor locked detected

“Re-start spinning”

motor locked cleared

Notes:

4. In “Normal spinning, the FG shall change its state at each rising edge of O1.

5. When magnetic is locked as “S” pole, then O2 is kept on “L”, O1 is a clock with Ton/Toff ratio. When magnetic is locked at “N” pole, then O1 is

kept on “L”, O2 is a clock with Ton/Toff ratio.

6. When “Re-start spinning” occurs, the motor shall ramp up to the “Normal Spinning” speed from zero. It depends on the motor characteristics.

AH5798 Rev. 1

3 of 9

www.diodes.com

OCTOBER 2009

© Diodes Incorporated

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