LM391 Audio Power Driver
December 1994
LM391 Audio Power Driver
General Description
The LM391 audio power driver is designed to drive external
power transistors in 10 to 100 watt power amplifier designs
High power supply voltage operation and true high fidelity
performance distinguish this IC The LM391 is internally pro-
tected for output faults and thermal overloads circuitry pro-
viding output transistor protection is user programmable
Features
Y
Y
Y
Y
Y
Y
Y
High Supply Voltage
Low Distortion
Low Input Noise
High Supply Rejection
Gain and Bandwidth Selectable
Dual Slope SOA Protection
Shutdown Pin
g
50V max
0 01%
3
mV
90 dB
Equivalent Schematic and Connection Diagram
TL H 7146 鈥?1
Dual-In-Line Package
TL H 7146 鈥?2
Top View
Order Number LM391N-100
See NS Package Number N16A
C
1995 National Semiconductor Corporation
TL H 7146
RRD-B30M115 Printed in U S A