HIT HA13143 Datasheet

HA13143

Four-Channel BTL Driver for CD Players

ADE-207-330 (Z)

1st Edition

Dec. 2000

Description

HA13143 is a four-channel BTL driver IC for driving CD player actuators (focus and tracking) and motors (carriage and spindle). It is ideal for small-profile players, since it requires few external parts and adopts a compact, surface-mounting package (MP-26 DT).

Functions

• 4-channel BTL driver

• 5 V power-supply circuit

• Standby circuit

• Built-in protection circuits (surge current, TSD)

Features

• Four channels for driving the actuators and motors in a CD player

• High driving current

• Built-in protection against surge currents from other circuits or from short circuits

• Built-in thermal shutdown protection circuit with hysteresis

• Built-in 5 V power supply (uses external pnp transistor)

• Compact MP-26 DT surface-mounting package enabling use in small-profile players

HA13143

Block Diagram

Q1

+

R5

16/2 W

C2

100

µF

C3

1000 pF

BYPASS

V

CC

1

NC

2

CD5B

3

NC

4

CD5V

5

6

AGND

7

5 V fixed voltage

CONT circuit

+ –

BAND

GAP

28.2 k

TSD

Limiter circuit

BTL driver

Limiter circuit

BTL driver

PV

CC

26

Vop2

25

CO+

24

CO–

23

SO+

22

SO–

21

PGND

20

V

CC

+

C1

470

2

8

7

µF

Input

5.0 V

2.5 V

TAB TAB

CONT

8

R1 1 k

R2 1 k

R3 1 k

R4 1 k

VREF

9

CIN

10

SIN

11

FIN

12

TIN

13

+ –

9 k

+ –

28.2 k Limiter circuit

BTL driver

28.2 k Limiter circuit

BTL driver

28.2 k

Unit:

Fo+

19

Fo–

18

To+

17

To–

16

Vop1

15

PV

14

R: Ω

C: F

12.5

1

CC

Rev.1, Dec. 2000, page 2 of 7

HA13143

Absolute Maximum Ratings (Ta = 25°C)

Item Symbol Rating Unit Remarks

Supply voltage V

CC

Output current IO-Peak See Note 1 A 1 Power dissipation P

T

Operating temperature Topr –30 to +85 °C Storage temperature Tstg –55 to +125 °C Junction temperature Tj 150 °C Notes: 1. Output current from each channel is as shown in table below.

Focus Tracking Carriage Spindle Unit

Max. output current 1200 1200 1200 1400 mA

2. In normal play mode.

3. Usable operating voltage range Vopr = 7 to 10 V.

4. The derating curve is as shown in the graph below (θjc = 8.0°C max.).

18 V

2.5 W 2

3.0

2.5

T

2.0

1.5

1.0

0.5

Power dissipation P (W)

0

0 25 50 75 85 100 125 150 175

–30

Ambient temperature T

θf = thermal resistance of heat sink

80˚C 105˚C 120˚C

θ

f = 20˚C/W

Infinite heat sink

θ

f

= 10˚C/W

(˚C)

a

Rev.1, Dec. 2000, page 3 of 7