HA13557AFH 查看數據表（PDF） - Hitachi -> Renesas Electronics

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产品描述 (功能)

生产厂家

HA13557AFH

Combo (Spindle & VCM) Driver

Hitachi -> Renesas Electronics 

4. Braking & Shut down the Spindle Driver

Open

HA13557AFH

Open

Note:

SPNENAB

> 20µs

ON CUT OFF

BRAKING

CUT OFF

The SPNENAB should be selected the open state after braking to reduce the supply current from

Vps and VSS.

5. Start-up of the Spindle motor

Open

SPNENAB

tCOMM (see External Components Table)

COMM

GND

Vth1

Vth2

SOURCE

IU

0

SINK

SOURCE

IV

0

SINK

SOURCE

IW

0

SINK

Synchronous Driving for motor start up

not detecting the B-EMF

detecting the B-EMF

Driving by

B-EMF sensing

11

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