Rev.1.0, Sep.16.2003, page 1 of 13

M63151FP

Polygon Scanner Motor Driver (DMOS Driver)

REJ03F0028-0100Z

Rev.1.0

Sep.16.2003

Description

The M63151FP is a driver and controller for use with three-phase brushless motor. A DMOS element with high

withstand voltage and low levels of switching loss is used on each output. Acceleration and deceleration inputs are

operable at TTL levels.

Features

• Power-supply voltage (max.): 30 V

• Output current (max.): 2.5 A

• RDS (typ.): 140 Ω (total of the upper and lower DMOS FETs)

• Built-in chip circuit for preventing through current in commutation

• Built-in chip comparator for current detection

• Buil-in chip overheating protection circuit

• Built-in chip motor-lock protection circuit

Applications

• OA equipment such as LBPs, copiers, and fax machines

Block diagram

Charge

Pump

/ACC /DEC RCP

VCC

HallAmp

RS

CPout

PWM

M

Vboot

cp2

cp1

RNF

Power

Save

PS

GND

Cfc

TEST

Pref

Frequency

Generator

Hu

Hv

Hw

Hu+

Hu-

Hv+

Hv-

Hw+

Hw-

Regulator

VREG

12V / 6V

TSD

MOTOR

ON/OFF

PWM

ON/OFF

Rfc

U

V

W

Motor Lock

Protection

CRLP

RLP