Philips tda7073a DATASHEETS
INTEGRATED CIRCUITS
DATA SH EET
TDA7073A/AT
Dual BTL power driver
Product specification
File under Integrated Circuits, IC01
July 1994
Philips Semiconductors Product specification
Dual BTL power driver TDA7073A/AT
FEATURES
• No external components
• Very high slew rate
• Single power supply
• Short-circuit proof
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).
• 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 TDA7073A/AT are dual 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.
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 = ∞−816mA
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 −3 dB − 1.5 − MHz
ORDERING INFORMATION
EXTENDED TYPE
NUMBER
TDA7073A 16 DIL plastic SOT38
TDA7073AT 16 mini-pack plastic SOT162A
Notes
1. SOT38-1; 1996 August 22.
2. SOT162-1; 1996 August 22.
July 1994 2
PACKAGE
PINS PIN POSITION MATERIAL CODE
Philips Semiconductors Product specification
Dual BTL power driver TDA7073A/AT
V
P
handbook, full pagewidth
positive input 1
negative input 1
positive input 2
negative input 2
2
1
TDA7073A
TDA7073AT
6
7
5
Ι
SHORT - CIRCUIT AND
THERMAL PROTECTION
I – i
ΙΙ
16I + i
13I – i
12
9I + i
positive output 1
negative output 1
negative output 2
positive output 2
10
ground 2
14
ground 1
Fig.1 Block diagram.
July 1994 3
3, 4, 8, 11, 15
MCD382 - 1
n.c.
Philips Semiconductors Product specification
Dual BTL power driver TDA7073A/AT
PINNING
SYMBOL PIN DESCRIPTION
IN1− 1 negative input 1
IN1+ 2 positive input 1
n.c. 3 not connected
n.c. 4 not connected
V
P
5 positive supply voltage
IN2+ 6 positive input 2
IN2− 7 negative input 2
n.c. 8 not connected
OUT2+ 9 positive output 2
GND2 10 ground 2
n.c. 11 not connected
OUT2− 12 negative output 2
OUT1− 13 negative output 1
GND1 14 ground 1
n.c. 15 not connected
OUT1+ 16 positive output 1
FUNCTIONAL DESCRIPTION
The TDA7073A/AT are dual power driver circuits in a BTL
configuration, intended for use as a power driver for servo
systems with a single supply. They are particular designed
for compact disc players and are capable of driving focus,
tracking, sled functions and spindle motors.
Because of the BTL configuration, the devices can supply
a bi-directional DC current in the load, with only a single
supply voltage. The voltage gain is fixed by internal
feedback at 33.5 dB and the devices operate in a wide
supply voltage range (3 to 18 V). The devices can supply
a maximum output current of 0.6 A. The outputs can be
short-circuited over the load, to the supply and to ground
at all input conditions. The differential inputs can handle
common mode input voltages from ground level up to
(VP−2.2 V with a maximum of 10 V). The devices have a
very high slew rate. Due to the large bandwidth, they can
handle PWM signals up to 176 kHz.
handbook, halfpage
1
IN1–
IN1+
2
3
n.c.
4
n.c.
V
IN2 +
IN2 –
n.c.
P
TDA7073A
TDA7073AT
5
6
7
8
MCD381
Fig.2 Pin configuration.
16
15
14
13
12
11
10
9
OUT1+
n.c.
GND1
OUT1 –
OUT2 –
n.c.
GND2
OUT2 +
July 1994 4
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