TDA5149 Ver la hoja de datos (PDF) - Philips Electronics

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TDA5149

12 V Voice Coil Motor (VCM) driver and spindle motor pre-driver combination chip

Philips Electronics 

Philips Semiconductors

12 V Voice Coil Motor (VCM) driver and

spindle motor pre-driver combination chip

BLOCK DIAGRAMS

Product specification

TDA5149G

handbook, full pagewidth

VDDD

55

VDDA1

27

DGND AGND

64

16

from the

to the

POR circuit LATCH

to the

VCM

CLOCK 58

SCLOCK 60

SDATA 59

SENABLE 61

SCANOUT 25

SCANTEST 56

FG 57

STOSC 24

LHOLD

SERIAL

PORT

LACTIVE

VPARK

1

VCM_CONT1 2

VCM_CONT2 3

VGAINSEL 4

SLEEP

5

COMMUT. DELAYS

SBRAKE

SDISABLE

SPINMODE

COMMCLOCK

INIT

SAWTOOTH TRIGGER

OSCILLATOR

BRAKEDELAY BRAKEPOWER IDRIVE

51

47

12

BRAKE

DELAY

TDA5149G

CAPY

1

63 CAPX1

CHARGE

PUMP 62 CAPX2

54 VDD

45 H0

DIGITAL

CONTROL

DRIVER

DRIVER

DRIVER

DRIVER

DRIVER

DRIVER

3 H1

5 L1

6 H2

8 L2

9 H3

11 L3

12 V

CLAMP

to the

VCM

MOT1

MOT2

MOT3

CSS2 23

CSS1 22

0.4 V

COMP

CSS2 dis

SPWM comp 2

COMP

CSS2 short

CSS1 dis

SPWM comp 1

CSS1 short

LOOP1 select

INTG

21

RPOS

20

SICOMP

COMP

1

BEMF comp 1

COMP

2

BEMF comp 2

COMP

3

BEMF comp 3

18

SINTIN

5×

15

SISENS

4 MOT1 3 kΩ

7 MOT2 3 kΩ

2 MOT0 1 kΩ

10 MOT3 3 kΩ

19 ISPIN

13 SPINSENSEH

14 SPINSENSEL

from the

PWM DAC

Rsense

MGE657

1996 May 06

Fig.1 Block diagram of the spindle part.

3

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