34923 データシートの表示（PDF） - Motorola => Freescale

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34923

Full-Bridge PWM Motor Driver

Motorola => Freescale 

Freescale Semiconductor, Inc.

5.0 V

VDD

Bandgap

VDD

Thermal Shutdown

Undervoltage

and

Fault Detect

OSC

(160 kHz)

Charge

Pump

≤45 V

VBB

Bandgap

Regulator

VREG

PWMMODE

DIR

PWM/ENABLE

Control Logic

Gate

Drive

OSC

CLOCK

DATA

STROBE

SPAN

Programmable

PWM Timer

Fixed-Off

Blank

Decay

Serial Port

Zero

Current

Detect

Current

Sense

Sleep Mode

Reference

Buffer and

Divider

Figure 1. 34923 Simplified Block Diagram

DCMA

Motor

DCMB

SENSE

CS

RS

VREF

Load Current

Reference

34923

2

MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA

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