UPD16882GS View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPD16882GS

MONOLITHIC CD-ROM/DVD-ROM 3-PHASE SPINDLE MOTOR DRIVER

NEC => Renesas Technology 

µPD16882

Output duty

Forword torque

Input

deadband

±100 mV

100%

MAX.

−0.75 V

TYP.

(−)

+0.75 V

TYP.

100%

Reverse torque

(+) ECR-EC

If the BRsel pin goes low, a short brake is applied and only the high side is ON if ECR is equal to or less than

EC. When the brake is applied in the reverse direction, the µPD16882 detects the reverse revolution of the

motor and then stops. For ECR-ER and the logic of the BRsel pin, refer to the table below.

ECR > EC

ECR < EC

BRsel Pin Logic

L

H

Forward

Short brake

Forward

Reverse brakeNote

Note The µPD16882 stops after it has detected the reverse revolution of the motor. When the motor revolves

in the reverse direction, the counter electromotive force flows into the VM pin via the channel of the high-

side Pch MOSFET.

(3) FG pulse selection function

This product can vary index signal (FG) output in proportion to the number of revolutions.

Depending on the setting of the FGsel pin, either single-phase output or three-phase synthesized output can be

selected.

For the logic, refer to the table below.

FG pulse output

FGsel Pin Logic

L

H

Single-phase output

3-phase synthesized output

Data Sheet S13966EJ1V0DS

9

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