TDF5140AP データシートの表示（PDF） - NXP Semiconductors.

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TDF5140AP

Brushless DC motor drive circuit

NXP Semiconductors. 

Philips Semiconductors

Brushless DC motor drive circuit

BLOCK DIAGRAM

Product specification

TDF5140A

13

−AMP IN

14

+AMP IN

AMP OUT

15

TRANS-

CONDUCTANCE

AMPLIFIER

VMOT

4

11

CAP-ST

START-UP

OSCILLATOR

10

CAP-DC

9

CAP-CD

ADAPTIVE

COMMUTATION

DELAY

TEST

CAP-TI

PG/FG

2

THERMAL

PROTECTION

12

ROTATION

6

POSITION

SPEED

&

DETECTOR

OUTPUT

STAGE

TIMING

DIVIDE

BY 2

POSITION

DETECTOR

STAGE

COMMUTATION

LOGIC

PUSH/PULL

FLYBACK

DH

DL

OUTPUT

DRIVER

STAGE 1

1

MOT1

OUTPUT DRIVER

STAGE 2

OUTPUT DRIVER

STAGE 3

3

MOT2

16

MOT3

TDF5140A

5

7

18

8

PGIN GND2 GND1 VP

EMF COMPARATORS

17

MOT0

MGH313

1999 March 15

Fig.1 Block diagram

3

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