MC33887PEK Freescale Semiconductor, MC33887PEK Datasheet

MC33887PEK

Manufacturer Part Number

MC33887PEK

Description

H-BRIDGE W/LD CUR FDBK

Manufacturer

Freescale Semiconductor

Datasheet

1.MC33887PEK.pdf (37 pages)

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Freescale Semiconductor

Technical Data

5.0 A H-Bridge with Load

Current Feedback

feedback feature making it ideal for closed-loop DC motor control.

The IC incorporates internal control logic, charge pump, gate drive,

and low R

control inductive loads with continuous DC load currents up to 5.0 A,

and with peak current active limiting between 5.2 A and 7.8 A. Output

loads can be pulse width modulated (PWM-ed) at frequencies up to

10 kHz. The load current feedback feature provides a proportional (1/

375th of the load current) constant-current output suitable for

monitoring by a microcontroller’s A/D input. This feature facilitates

the design of closed-loop torque/speed control as well as open load

detection.

overtemperature conditions. Two independent inputs provide polarity

control of two half-bridge totem-pole outputs. Two disable inputs

force the H-Bridge outputs to tri-state (exhibit high-impedance).

-40°C

Operation with voltages up to 40 V with derating of the specifications.

Features

* This document contains certain information on a new product.

Specifications and information herein are subject to change without notice.

The 33887 is a monolithic H-Bridge Power IC with a load current

A Fault Status output pin reports undervoltage, short circuit, and

The 33887 is parametrically specified over a temperature range of

• Fully specified operation 5.0 V to 28 V

• Limited operation with reduced performance up to 40 V

• 120 mΩ R

• TTL/CMOS Compatible Inputs

• PWM Frequencies up to 10 kHz

• Active Current Limiting (Regulation)

• Fault Status Reporting

• Sleep Mode with Current Draw ≤50 μA (Inputs Floating or Set

to Match Default Logic States)

≤

DS(ON)

≤

125°C and a voltage range of 5.0 V

DS(ON)

MOSFET output circuitry. The 33887 is able to

Typical H-Bridge MOSFETs

MCU

Figure 1. 33887 Simplified Application Diagram

OUT

A/D

6.0 V

≤

V+

≤

28 V.

CCP

IN1

IN2

33887

MC33887APVW/R2

MC33887PFK/R2

MC33887PEK/R2

Device

PGND

AGND

OUT1

OUT2

V+

ORDERING INFORMATION

98ASA10583D

36-PIN PQFN

FK SUFFIX

V+

H-BRIDGE

MOTOR

33887

-40°C to 125°C

Document Number: MC33887

Temperature

Range (T

VW SUFFIX (Pb-FREE)

EK SUFFIX (Pb-FREE)

54-PIN SOICW-EP

98ASH70702A

98ASA10506D

20-PIN HSOP

)

Rev. 16.0, 10/2012

Bottom View

54 SOICW-EP

20 HSOP

36 PQFN

Package

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