Overview
The LM1875T/S7002160 is a high-performance monolithic audio power amplifier designed by Texas Instruments. Although it is often associated with National Semiconductor due to the company's merger with TI, it remains a TI product. This amplifier is known for its low distortion and high-quality performance, making it suitable for various consumer audio applications. It can deliver up to 30 watts of output power into an 8Ω load and up to 20 watts into a 4Ω load on ±25V supplies. The LM1875T/S7002160 features advanced circuit techniques and processing to achieve extremely low distortion levels even at high output power levels.
Key Specifications
| Parameter | Typical Value | Units |
|---|---|---|
| Output Power | 20 W (THD = 1%, RL = 8Ω, fo = 1 kHz) | Watts |
| Average Voltage Gain (AVO) | 90 dB | dB |
| Distortion (THD) | 0.015% (POUT = 20 W, fo = 1 kHz) | % |
| Power Bandwidth | 70 kHz | kHz |
| Supply Voltage Range | 16 V to 60 V | V |
| Current Limit | 4 A | A |
| Thermal Shutdown Temperature | 170°C | °C |
| Package Type | TO-220-5 | |
| Operating Temperature Range | 0°C to 70°C | °C |
Key Features
- Low distortion: 0.015% at 1 kHz, 20 W output
- Wide power bandwidth: 70 kHz
- Protection for AC and DC short circuits
- Thermal protection with shutdown
- High current capability: 4 A
- Wide supply range: 16 V to 60 V
- Internal output protection diodes
- High gain, fast slew rate, and large output voltage swing
Applications
- High-performance audio systems
- Bridge amplifiers
- Stereo phonographs
- Servo amplifiers
- Instrument systems
Q & A
- What is the maximum output power of the LM1875T/S7002160?
The LM1875T/S7002160 can deliver up to 30 watts of output power into an 8Ω load and up to 20 watts into a 4Ω load on ±25V supplies. - What is the typical distortion level of the LM1875T/S7002160?
The typical distortion level is 0.015% at 1 kHz with a 20 W output. - What is the power bandwidth of the LM1875T/S7002160?
The power bandwidth is 70 kHz. - What kind of protection does the LM1875T/S7002160 have?
The LM1875T/S7002160 has protection for AC and DC short circuits and thermal protection with shutdown. - What is the current limit of the LM1875T/S7002160?
The current limit is 4 A. - What is the supply voltage range of the LM1875T/S7002160?
The supply voltage range is from 16 V to 60 V. - What package type is the LM1875T/S7002160 available in?
The LM1875T/S7002160 is available in a TO-220-5 package. - What is the operating temperature range of the LM1875T/S7002160?
The operating temperature range is from 0°C to 70°C. - Does the LM1875T/S7002160 require a heat sink?
Yes, the LM1875T/S7002160 must always be operated with a heat sink to prevent thermal shutdown. - What are some typical applications of the LM1875T/S7002160?
Typical applications include high-performance audio systems, bridge amplifiers, stereo phonographs, servo amplifiers, and instrument systems.
