LM1875TLB05 National Semiconductor, LM1875TLB05 Datasheet
LM1875TLB05
Manufacturer Part Number
LM1875TLB05
Description
20W Audio Power Amplifier
Manufacturer
National Semiconductor
Datasheet
1.LM1875TLB05.pdf
(12 pages)
© 1999 National Semiconductor Corporation
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 or 8 load on
supplies. Using an 8
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 in-
ternally compensated and stable for gains of 10 or greater.
Connection Diagram
For Straight Leads
For Stagger Bend
For 90˚ Stagger Bend
For 90˚ Stagger Bend
Package
Front View
load and
Ordering Info
SL108949
LM1875T
LM1875T
LM1875T
LM1875T
LB03
LB05
LB02
±
30V supplies, over 30
DS005030-1
DS005030
NSC Package
Number
TA05B
T05A
T05D
T05E
±
25V
Features
n Up to 30 watts output power
n A
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
Typical Applications
VO
typically 90 dB
February 1999
www.national.com
DS005030-2
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