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LM1875T/NOPB
20-W Audio Power Amplifier 5-TO-220
LM1875
www.ti.com SNAS524A –MAY 2004–REVISED MAY 2004
LM1875 20W Audio Power Amplifier
Checkfor Samples: LM1875
1FEATURES DESCRIPTIONThe LM1875isa monolithic power amplifier offering
Upto30 Watts Output Power very low distortion and high quality performance for
• AVO Typically90 dB consumer audio applications.
Low Distortion: 0.015%,1 kHz,20W The LM1875 delivers 20 watts intoa 4Ωor 8Ω load
• Wide Power Bandwidth:70 kHz on ±25V supplies. Using an 8Ω load and ±30V
Protection for AC and DC Short Circuitsto supplies, over 30 wattsof power may be delivered.
The amplifieris designedto operate witha minimum
Ground external components. Device overload protection
• Thermal Protection with Parole Circuit consistsof both internal current limit and thermal
• High Current Capability: 4A shutdown.
Wide Supply Range 16V-60V The LM1875 design takes advantageof advanced
• Internal Output Protection Diodes circuit techniques and processing to achieve
extremely low distortion levels evenat high output
• 94 dB Ripple Rejectionpower levels. Other outstanding features include high
• Plastic Power Package TO-220 gain, fast slew rate anda wide power bandwidth,
large output voltage swing, high current capability,
APPLICATIONS anda very wide supply range. The amplifieris
High Performance Audio Systems internally compensated and stable for gainsof 10or
greater.
• Bridge Amplifiers Stereo Phonographs Servo Amplifiers Instrument Systems
Connection Diagram
Figure1. NDH0005D, KC0005A,
NEB0005E, NEB0005B,
Front View
