ULN3718 Allegro MicroSystems, Inc., ULN3718 Datasheet - Page 2

• Manufacturer Part Number: ULN3718
• Description: Low-voltage Audio Power Amplifier
• Manufacturer: Allegro MicroSystems, Inc.

ELECTRICAL CHARACTERISTICS at T
(unless otherwise noted).
Characteristic
Supply Voltage Range
Quiescent Supply Current
Voltage Gain
Audio Power Output
Distortion
Output Noise
Input Resistance
Power Supply Rejection
3718
LOW-VOLTAGE AUDIO POWER AMPLIFIER
2.0
1.5
1.0
0.5
0
25
FREE AIR, R
50
R
TEMPERATURE IN C
JC
= 55 C/W
JA
75
= 80 C/W
Symbol
PSRR
P
THD
V
V
R
I
A
OUT
CC
CC
out
IN
V
100
Test Conditions
V
V
V
R
R
R
R
P
P
Input Shorted, BW = 80 kHz
Pin 8
C
CC
CC
CC
OUT
OUT
L
L
L
L
D
= 8 , V
= 8 , V
= 32 , V
= 32 , V
125
(Pin 1) = 500 F, f = 120 Hz
= 3.0 V
= 6.0 V
= 9.0 V
= 10 mW
= 1.0 mW, V
Dwg. GP-009-1B
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]
W
Copyright © 1985, 1995, Allegro MicroSystems, Inc.
CC
CC
CC
CC
150
= 3.0 V, THD = 10%
= 6.0 V, THD = 10%
A
= 3.0 V, THD = 10%
= 6.0 V, THD = 10%
= +25 C, V
CC
= 1.8 V
CC
TEST CIRCUIT AND TYPICAL
= 3 V, R
APPLICATION
L
Min.
250
1.8
36
15
—
—
—
—
—
—
—
—
—
—
= 32 , f
Typ.
430
125
200
250
3.0
6.0
9.0
0.3
1.5
12
40
80
25
28
in
Limits
= 400 Hz
Max.
500
9.0
1.0
3.0
10
15
20
44
—
—
—
—
—
—
Units
mW
mW
mW
mW
mA
mA
mA
dB
k
dB
%
%
V
V