Philips tda7072a, tda7072at DATASHEETS
INTEGRATED CIRCUITS
DATA SH EET
TDA7072A/AT
Single BTL power driver
Objective specification
File under Integrated circuits, IC01
July 1994
Philips Semiconductors Objective specification
Single BTL power driver TDA7072A/AT
FEATURES
• No external components
• Very high slew rate
• Single power supply
• Short-circuit proof
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.
• 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
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
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
V
P
G
v
I
P
positive supply voltage range 3.0 5.0 18 V
internal voltage gain 32.5 33.5 34.5 dB
total quiescent current VP = 5 V; RL = ∞−48mA
SR slew rate − 12 − V/µs
I
I
f
O
bias
co
output current −−0.6 A
input bias current − 100 300 nA
cut-off frequency −3dB − 1.5 − MHz
ORDERING INFORMATION
EXTENDED TYPE
NUMBER
PINS PIN POSITION MATERIAL CODE
PACKAGE
TDA7072A 8 DIL plastic SOT97
TDA7072AT 8 mini-pack plastic SOT96A
Notes
1. SOT97-1; 1996 September 10.
2. SOT96-1; 1996 September 10.
(1)
(2)
July 1994 2
Philips Semiconductors Objective specification
Single BTL power driver TDA7072A/AT
V
P
handbook, full pagewidth
PINNING
positive input
negative input
TDA7072A
TDA7072AT
2
3
n.c.
I + i
SHORT - CIRCUIT AND
THERMAL PROTECTION
I – i
4
6
ground
Fig.1 Block diagram.
1
5
8
7
n.c.
positive output
negative output
MCD377 - 1
SYMBOL PIN DESCRIPTION
V
P
1 positive supply voltage
IN+ 2 positive input
IN− 3 negative input
n.c. 4 not connected
OUT+ 5 positive output
GND 6 ground
n.c. 7 not connected
OUT− 8 negative output
handbook, halfpage
V
IN +
IN –
n.c.
P
1
2
TDA7072A
TDA7072AT
3
4
8
7
6
5
MCD378
Fig.2 Pin configuration.
OUT –
n.c.
GND
OUT +
July 1994 3
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