July 1994

2

Philips Semiconductors

Objective specification

Single BTL power driver

TDA7072A/AT

FEATURES

• No external components

• Very high slew rate

• Single power supply

• Short-circuit proof

• High output current (0.6 A)

• Wide supply voltage range

• Low output offset voltage

• Suited for handling PWM signals up to 176 kHz

• ESD protected on all pins

GENERAL DESCRIPTION

The TDA7072A/AT are single power driver circuits in a

BTL configuration, intended for use as a power driver for

servo systems with a single supply. They are specially

designed for compact disc players and are capable of

driving focus, tracking, sled functions and spindle motors.

Missing Current Limiter (MCL)

A MCL protection circuit is built-in. The MCL circuit is

activated when the difference in current between the

output terminal of each amplifier exceeds 100 mA (typical

300 mA). This level of 100 mA allows for headphone

applications (single-ended).

QUICK REFERENCE DATA

ORDERING INFORMATION

Notes

1. SOT97-1; 1996 September 10.

2. SOT96-1; 1996 September 10.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

positive supply voltage range

3.0

5.0

18

V

internal voltage gain

32.5

33.5

34.5

dB

total quiescent current

48mA

SR

slew rate

−

12

−

V/

µs

output current

−−

0.6

A

input bias current

−

100

300

nA

cut-off frequency

−3dB

−

1.5

−

MHz

EXTENDED TYPE

NUMBER

PACKAGE

PINS

PIN POSITION

MATERIAL

CODE

TDA7072A

8

DIL

plastic

TDA7072AT

8

mini-pack

plastic