TDA5142 データシートの表示（PDF） - Philips Electronics

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TDA5142

Brushless DC motor drive circuit

Philips Electronics 

Philips Semiconductors

Brushless DC motor drive circuit

Product specification

TDA5142T

FEATURES

• Full-wave commutation without position sensors

• Built-in start-up circuitry

• Six outputs that can drive three external transistor pairs:

– output current 0.2 A (typ.)

– low saturation voltage

– built-in current limiter

• Thermal protection

• Tacho output without extra sensor

• Transconductance amplifier for an external

control transistor

• Motor brake facility.

APPLICATIONS

• High-power applications e.g.:

– high-end hard disk drives

– automotive.

GENERAL DESCRIPTION

The TDA5142T is a bipolar integrated circuit used to drive

3-phase brushless DC motors in full-wave mode. The

device is sensorless (saving of 3 hall-sensors) using the

back-EMF sensing technique to sense the rotor position.

It includes a brake function and 6 pre-drivers able to

control FETs or bipolar external transistors. It is ideally

suited for high-power applications such as high-end hard

disk drives, automotive and other applications.

QUICK REFERENCE DATA

Measured over full voltage and temperature range.

SYMBOL

VP

VVMOT

VO

PARAMETER

supply voltage

input voltage to the output

driver stages

driver output voltage

ILIM

current limiting

CONDITIONS

note 1

IO = 100 mA; lower transistor

IO = 100 mA; upper transistor

VVMOT = 14.5 V; RO = 47 Ω

Note

1. An unstabilized supply can be used.

MIN.

4

3

−

1.05

150

TYP.

−

−

−

−

200

MAX.

18

18

0.35

−

250

UNIT

V

V

V

V

mA

ORDERING INFORMATION

TYPE NUMBER

TDA5142T

PINS

24

PACKAGE

PIN POSITION

SOL

MATERIAL

plastic

CODE

SOT137-1

June 1994

2

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