TDA5149 Просмотр технического описания (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

Product specification

TDA5149G

Table 13 Configuration of the six commutation states in hard-switching mode

STATE

1(3)

2

3

4

5

6

SHIFT REGISTER

111

011

001

000

100

110

H1(1)

ON

ON

−

−

−

−

H2(1)

−

−

ON

ON

−

−

H3(1)

−

−

−

−

ON

ON

L1(2)

−

−

−

PWM

PWM

−

L2(2)

PWM

−

−

−

−

PWM

Note

1. H1, H2 and H3 are the upper power FETs connected to MOT1, MOT2 and MOT3 respectively.

2. L1, L2 and L3 are the lower power FETs connected to MOT1, MOT2 and MOT3 respectively.

3. INIT = 1 means ‘state 1’ situation with PWM stuck in OFF on L2.

L3(2)

−

PWM

PWM

−

−

−

LIMITING VALUES

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

SYMBOL

PARAMETER

CONDITIONS

VDD

general supply voltage

indefinite time period

VDDD

digital supply voltage

indefinite time period

VDDA

analog supply voltage

indefinite time period

VDDV

supply for VCM DMOS driver

indefinite time period

VCM+

VCM−

ICM+

ICM−

VMOT

Vn

Tstg

Tj(max)

output voltage of the VCM power

stage

output voltage of the VCM power

stage

output current of the VCM power

stage

output current of the VCM power

stage

BEMF comparator input voltage

(pins 4, 7 and 10)

input voltages on other pins

IC storage temperature

maximum junction temperature

current peak <0.5 s

current peak <0.5 s

MIN.

−0.3

−0.3

−0.3

−0.3

−0.3

−0.3

−0.3

−0.3

−0.7

−0.7

−

−

−0.7

−0.3

−55

−

MAX.

+13.5

+15

+6.0

+7.0

+6.0

+7.0

+13.5

+15

+15

UNIT

V

V

V

V

V

V

V

V

V

+15

V

2.5

A

2.5

A

−

V

−

V

+125

°C

150

°C

1996 May 06

14

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