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LM2005 Datasheet

LM2005 20 Watt Automotive Power Amplifier

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April 1989
LM2005 20 Watt Automotive Power Amplifier
General Description
The LM2005 is a dual high power amplifier designed to
deliver optimum performance and reliability for automotive
applications High current capability (3 5A) enables the de-
vice to deliver 10W channel into 2X (LM2005T-S) or 20W
bridged monaural (LM2005T-M) into 4X with low distortion
Features
Y Wide supply range (8V – 18V)
Y Externally programmable gain
Y With or without bootstrap
Y Low distortion
Y Low noise
Y High peak current capability
Y POe20W bridge
Y High voltage protection
Y AC and DC output short circuit protection to ground or
across load
Y Thermal protection
Y Inductive load protection
Y Accidental open ground protection
Y Immunity to 40V power supply transients
Y 3 C W device dissipation
Y Pin for pin compatible with TDA2005
Connection Diagram Typical Application
Plastic Package
TL H 5129–1
Order Number LM2005T-S
or LM2005T-M
See NS Package Number TA11A
TL H 5129 – 2
FIGURE 1 20W Bridge Amplifier Application and Test Circuit
C1995 National Semiconductor Corporation TL H 5129
RRD-B30M115 Printed in U S A


National Semiconductor Electronic Components Datasheet

LM2005 Datasheet

LM2005 20 Watt Automotive Power Amplifier

No Preview Available !

LM2005T-M and LM2005T-S
Absolute Maximum Ratings
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
Operating Supply Voltage
18V
DC Supply Voltage (Note 1)
28V
Peak Supply Voltage (50 ms)
40V
Output Current
Repetitive (Note 2)
Non-Repetitive
Power Dissipation
Operating Temperature
Storage Temperature
Lead Temp (Soldering 10 seconds)
3 5A
4 5A
30W
b40 C to a85 C
b60 C to a150 C
260 C
LM2005T-M
Electrical Characteristics Refer to the bridge application circuit Figure 1 Tamb e 25 C AV e 50 dB
Rth (heatsink) e 4 C W unless otherwise specified
Parameter
Test Conditions
Min Typ
Max
Supply Voltage
8 18
Output Offset Voltage (Note 3)
(between Pin 8 and 10)
Total Quiescent Drain Current
Includes Current in Feedback Resistors
Output Power
THD
Input Sensitivity
Input Resistance
VS e 14 4V
VS e 13 2V
VS e 14 4V
VS e 13 2V
RL e 4X
RL e 3 2X
d e 10%
VS e 14 4V
VS e 13 2V
f e 1 kHz
RL e 4X
RL e 3 2X
RL e 3 2X
f e 1 kHz
VS e 14 4V
RL e 4X
PO e 50 mW to 15W
VS e 13 2V
RL e 3 2X
PO e 50 mW to 13W
f e 1 kHz
PO e 2W
PO e 2W
RL e 4X
RL e 3 2X
f e 1 kHz
g20
75
70
g150
g150
150
160
18 20
20 22
17 19
9
8
70
1
1
Low Frequency Roll Off (b3 dB)
High Frequency Roll Off (b3 dB)
Closed Loop Voltage Gain
RL e 3 2X
RL e 3 2X
f e 1 kHz
20
45 50
40
Total Input Noise Voltage
Rg e 10 kX (Note 4)
3 10
Supply Voltage Rejection
Rg e 10 kX
C4 e 10 mF
fripple e 100 Hz
Vripple e 0 5V
45
55
Efficiency
Output Voltage with One Side
of the Speaker Shorted to Ground
Note 1 Internal voltage limit Shuts down above 20V
Note 2 Internal current limit
Note 3 For LM2005T-M only
Note 4 Bandwidth filter 22 Hz to 22 kHz
VS e 14 4V
PO e 20W
PO e 22W
VS e 13 2V
PO e 19W
VS e 14 4V
VS e 13 2V
f e 1 kHz
RL e 4X
RL e 3 2X
f e 1 kHz
RL e 3 2X
RL e 4X
RL e 3 2V
60
60
58
2
Units
V
mV
mV
mA
mA
W
W
W
%
%
mV
mV
kX
Hz
kHz
dB
mV
dB
%
%
%
V
2


Part Number LM2005
Description LM2005 20 Watt Automotive Power Amplifier
Maker National Semiconductor
Total Page 8 Pages
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