ZXBM2004 Ver la hoja de datos (PDF) - Diodes Incorporated.

Número de pieza

componentes Descripción

Fabricante

ZXBM2004

TWO PHASE VARIABLE SPEED MOTOR CONTROL PRE-DRIVER

Diodes Incorporated. 

Typical Application Circuit

ZXBM2004

TWO PHASE VARIABLE SPEED

MOTOR CONTROL PRE-DRIVER

Pin Descriptions

Pin Name

H+

H-

ThRef

SPD

CPWM

SMIN

GND

CLCK

RD

FG

Ph1

Ph2

V+OP

VCC

Description

Hall input to non-inverting input of internal operational amplifier

Hall input to inverting input of internal operational amplifier

Reference output voltage

Speed control pin; The control signal voltage should be between 3V to 1V for 0% to 100% (full speed)

speed control

PWM frequency setting pin: Connect a capacitor from this pin to ground (0V) to set PWM frequency.

Capacitor of 0.1nF will give PWM frequency of 24kHz typical.

Minimum speed setting pin: Voltage between 3V to 1V on this pin sets the minimum speed

between 0% to full speed. Lowest minimum speed achieved depends on the motor coil

design.

Supply return ground pin

Rotor lock detect and auto re-start timing pin: Connect a capacitor from this pin to ground to set the lock

detect and restart timing.

Rotor lock detect pin: Open collector output to indicate rotor lock detection

Connect a pull-up resistor from the pin to the pull-up supply rail

Frequency Generator output to provide a tachometer signal

Phase-1 low-side external power switch drive output pin: Darlington emitter follower output with active

pull down to give source/sink current of 80mA/16mA

Phase-2 low-side external power switch drive output pin: Darlington emitter follower output with active

pull down to give source/sink current of 80mA/16mA

Phase output supply voltage pin: The pin allows to optimize the supply to output drive depending on

whether external power switch is Bipolar switch or MOSFET

Power supply pin

ZXBM2004

Document number: DS33433 Rev. 5 - 2

2 of 19

www.diodes.com

February 2012

© Diodes Incorporated

Share Link: