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LM1875T Datasheet(HTML) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part No. LM1875T
Description  20W Audio Power Amplifier
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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LM1875T Datasheet(HTML) 1 Page - National Semiconductor (TI)

 
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LM1875
20W Audio Power Amplifier
General Description
The LM1875 is a monolithic power amplifier offering very low
distortion and high quality performance for consumer audio
applications.
The LM1875 delivers 20 watts into a 4
Ω or 8Ω load on ±25V
supplies. Using an 8
Ω load and ±30V supplies, over 30
watts of power may be delivered. The amplifier is designed
to operate with a minimum of external components. Device
overload protection consists of both internal current limit and
thermal shutdown.
The LM1875 design takes advantage of advanced circuit
techniques and processing to achieve extremely low distor-
tion levels even at high output power levels. Other outstand-
ing features include high gain, fast slew rate and a wide
power bandwidth, large output voltage swing, high current
capability, and a very wide supply range. The amplifier is
internally compensated and stable for gains of 10 or greater.
Features
n
Up to 30 watts output power
n
A
VO typically 90 dB
n
Low distortion: 0.015%, 1 kHz, 20 W
n
Wide power bandwidth: 70 kHz
n
Protection for AC and DC short circuits to ground
n
Thermal protection with parole circuit
n
High current capability: 4A
n
Wide supply range 16V-60V
n
Internal output protection diodes
n
94 dB ripple rejection
n
Plastic power package TO-220
Applications
n
High performance audio systems
n
Bridge amplifiers
n
Stereo phonographs
n
Servo amplifiers
n
Instrument systems
Connection Diagram
00503001
Front View
Package
Ordering Info
NSC Package
Number
For Straight Leads
LM1875T
SL108949
T05A
For Stagger Bend
LM1875T
LB03
T05D
For 90˚ Stagger
Bend
LM1875T
LB05
T05E
For 90˚ Stagger
Bend
LM1875T
LB02
TA05B
Typical Applications
00503002
July 2002
© 2002 National Semiconductor Corporation
DS005030
www.national.com


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