TDA7073A Datasheet, PDF (4/16 Pages) NXP Semiconductors – Dual BTL power driver

Philips Semiconductors
Dual BTL power driver
Product specification
TDA7073A; TDA7073AT
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
IN2+
5 positive supply voltage
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
handbook, halfpage
IN1– 1
16 OUT1+
IN1+ 2
15 n.c.
n.c. 3
14 GND1
n.c. 4 _TDA7073A 13 OUT1 –
VP ₅ ^TDA7073AT _{12 OUT2 –}
IN2 + 6
11 n.c.
IN2 – 7
10 GND2
n.c. 8
9 OUT2 +
MCD381
Fig.2 Pin configuration.
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
(V_P − 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.
1999 Aug 30
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