TDF5140AP/C1 Ver la hoja de datos (PDF) - NXP Semiconductors.

Número de pieza

componentes Descripción

Fabricante

TDF5140AP/C1

Brushless DC motor drive circuit

NXP Semiconductors. 

Philips Semiconductors

Brushless DC motor drive circuit

Product specification

TDF5140A

MOT1 1

18 GND1

TEST 2

17 MOT0

MOT2 3

16 MOT3

VMOT 4

15 AMP OUT

PG IN 5 TDF5140A 14 -AMP IN

PG/FG 6

13 +AMP IN

GND2 7

12 CAP-TI

Vp 8

11 CAP-ST

CAP-CD 9

10 CAP-DC

MGH311

Fig.2 Pin configuration

FUNCTIONAL DESCRIPTION

The TDF5140A offers a sensorless three phase motor drive function. It is unique in its combination of sensorless motor

drive and full-wave drive. The TDF5140A 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 TDF5140A 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 (0.8 A).

• Outputs protected by current limiting and thermal protection of each output transistor.

• Low current consumption by adaptive base-drive.

• Accurate frequency generator (FG) by using the motor EMF.

• Amplifier for external position generator (PG) signal.

• Suitable for use with a wide tolerance, external PG sensor.

• Built-in multiplexer that combines the internal FG and external PG signals on one pin for easy use with a controlling

microprocessor.

• Uncommitted operational transconductance amplifier (OTA), with a high output current, for use as a control amplifier.

1999 March 15

5

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