TDA5149G datasheet(3/28 Pages) PHILIPS

Part #	TDA5149G

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

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Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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3 / 28 page

1996 May 06

3

Philips Semiconductors

Product speciﬁcation

12 V Voice Coil Motor (VCM) driver and

spindle motor pre-driver combination chip

TDA5149G

BLOCK DIAGRAMS

Fig.1 Block diagram of the spindle part.

handbook, full pagewidth

MGE657

SAWTOOTH

OSCILLATOR

SERIAL

PORT

VPARK

VCM_CONT1

VCM_CONT2

VGAINSEL

SLEEP

COMMUT. DELAYS

SBRAKE

SDISABLE

SPINMODE

COMMCLOCK

INIT

TRIGGER

CSS2 dis

SPWM comp 1

SPWM comp 2

CSS2 short

CSS1 dis

CSS1 short

LOOP1 select

CHARGE

PUMP

BRAKE

DELAY

22

CSS1

CSS2 23

STOSC 24

FG 57

SCANTEST

56

SCANOUT

25

SENABLE 61

SDATA

59

SCLOCK

60

CLOCK

58

54 VDD

45 H0

3 H1

5 L1

6 H2

8 L2

9 H3

11 L3

4 MOT1

7 MOT2

2 MOT0

10 MOT3

19 ISPIN

13

14

SPINSENSEH

SPINSENSEL

63

62 CAPX2

CAPX1

12 V

CLAMP

to the

VCM

MOT1

MOT2

MOT3

3 k

Ω

3 k

Ω

1 k

Ω

3 k

Ω

from the

PWM DAC

Rsense

1

CAPY

IDRIVE

12

BRAKEPOWER

BRAKEDELAY

AGND

DGND

64

16

51

47

VDDA1

VDDD

55

27

from the

POR circuit

to the

LATCH

to the

VCM

DIGITAL

CONTROL

21

RPOS

20

SICOMP

18

SINTIN

15

SISENS

5

×

INTG

COMP

BEMF comp 1

BEMF comp 2

BEMF comp 3

DRIVER

COMP

0.4 V

LACTIVE

LHOLD

TDA5149G

1

2

3

1

2

3

4

5

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TDA5149G Datasheet(PDF) 3 Page - NXP Semiconductors

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