TDA5143 查看數據表（PDF） - Philips Electronics

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TDA5143

Brushless DC motor drive circuit

Philips Electronics 

Philips Semiconductors

Brushless DC motor drive circuit

Product specification

TDA5143T

FUNCTIONAL DESCRIPTION

The TDA5143T offers a sensorless three phase motor

drive function. It is unique in its combination of sensorless

motor drive and full-wave drive. The TDA5143T offers

protected outputs capable of handling high currents and

can be used with star or delta connected motors. It can

easily be adapted for different motors and applications.

The TDA5143T offers the following features:

• Sensorless commutation by using the motor EMF.

• Built-in start-up circuit.

• Optimum commutation, independent of motor type or

motor loading.

• Built-in flyback diodes.

• Three phase full-wave drive.

• High output current (0.85 A).

• Outputs protected by current limiting and thermal

protection of each output transistor.

• Low current consumption by adaptive base-drive.

• Soft-switching pulse output for low radiation.

• Accurate frequency generator (FG) by using the motor

EMF.

• Uncommitted operational transconductance amplifier

(OTA), with a high output current, for use as a control

amplifier.

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

SYMBOL

PARAMETER

CONDITIONS

VP

VI

VVMOT

VO

VI

Tstg

Tamb

Ptot

Ves

supply voltage

input voltage; all pins except

VMOT

VI < 18 V

VMOT input voltage

output voltage

AMP OUT and FG

MOT0, MOT1, MOT2 and MOT3

input voltage CAP-ST, CAP-TI,

CAP-CD and CAP-DC

storage temperature

operating ambient temperature

total power dissipation

see Fig.3

electrostatic handling

see Chapter “Handling”

MIN.

−

−0.3

−0.5

GND

−1

−

−55

0

−

−

MAX.

18

VP + 0.5

17

UNIT

V

V

V

VP

V

VVMOT + VDHF V

2.5

V

+150

°C

+70

°C

−

W

500

V

June 1994

5

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