LM1875 Series

20-W Audio Power Amplifier

Catalog

20-W Audio Power Amplifier

Part	Package / Case	Features	Supplier Device Package	Operating Temperature [Max]	Mounting Type	Output Type	Type	Voltage - Supply	Voltage - Supply [Min]	Voltage - Supply [Max]	Voltage - Supply [Max]	Max Output Power x Channels @ Load [custom]	Max Output Power x Channels @ Load
Texas Instruments LM1875T	TO-220-5 Formed Leads	Short-Circuit and Thermal Protection	TO-220-5	70 °C	Through Hole	1-Channel (Mono)	Class AB	8 V	16 V	60 V	30 V	1	25 W
Texas Instruments LM1875T/LB03	TO-220-5 Formed Leads	Short-Circuit and Thermal Protection	TO-220-5	70 °C	Through Hole	1-Channel (Mono)	Class AB	8 V	16 V	60 V	30 V	1	25 W
Texas Instruments LM1875T/LF05	TO-220-5 Formed Leads	Short-Circuit and Thermal Protection	TO-220-5	70 °C	Through Hole	1-Channel (Mono)	Class AB	8 V	16 V	60 V	30 V	1	25 W
Texas Instruments LM1875T/LB02	TO-220-5 Formed Leads	Short-Circuit and Thermal Protection	TO-220-5	70 °C	Through Hole	1-Channel (Mono)	Class AB	8 V	16 V	60 V	30 V	1	25 W
Texas Instruments LM1875T/LF02	TO-220-5 Formed Leads	Short-Circuit and Thermal Protection	TO-220-5	70 °C	Through Hole	1-Channel (Mono)	Class AB	8 V	16 V	60 V	30 V	1	25 W
Texas Instruments LM1875T/LB05	TO-220-5 Formed Leads	Short-Circuit and Thermal Protection	TO-220-5	70 °C	Through Hole	1-Channel (Mono)	Class AB	8 V	16 V	60 V	30 V	1	25 W
Texas Instruments LM1875T/LF03	TO-220-5 Formed Leads	Short-Circuit and Thermal Protection	TO-220-5	70 °C	Through Hole	1-Channel (Mono)	Class AB	8 V	16 V	60 V	30 V	1	25 W

Catalog

20-W Audio Power Amplifier

Key Features

• Up to 30 watts output powerAVOtypically 90 dBLow distortion: 0.015%, 1 kHz, 20 WWide power bandwidth: 70 kHzProtection for AC and DC short circuits to groundThermal protection with parole circuitHigh current capability: 4AWide supply range 16V-60VInternal output protection diodes94 dB ripple rejectionPlastic power package TO-220Up to 30 watts output powerAVOtypically 90 dBLow distortion: 0.015%, 1 kHz, 20 WWide power bandwidth: 70 kHzProtection for AC and DC short circuits to groundThermal protection with parole circuitHigh current capability: 4AWide supply range 16V-60VInternal output protection diodes94 dB ripple rejectionPlastic power package TO-220

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 4or 8load on ±25V supplies. Using an 8load 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 distortion levels even at high output power levels. Other outstanding 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. 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 4or 8load on ±25V supplies. Using an 8load 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 distortion levels even at high output power levels. Other outstanding 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.