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LM1875

現行

20 W 音訊功率放大器

立即訂購
產品規格表

LM1875

現行
產品規格表 立即訂購

產品詳細資料

Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Rating Catalog Power stage supply (max) (V) 60 Power stage supply (min) (V) 16 Load (min) (Ω) 4 Output power (W) 20 THD + N at 1 kHz (%) 0.015 Iq (typ) (mA) 70 Control interface Hardware Closed/open loop Open Analog supply (min) (V) 16 Analog supply voltage (max) (V) 60 PSRR (dB) 95 Operating temperature range (°C) 0 to 70
Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Rating Catalog Power stage supply (max) (V) 60 Power stage supply (min) (V) 16 Load (min) (Ω) 4 Output power (W) 20 THD + N at 1 kHz (%) 0.015 Iq (typ) (mA) 70 Control interface Hardware Closed/open loop Open Analog supply (min) (V) 16 Analog supply voltage (max) (V) 60 PSRR (dB) 95 Operating temperature range (°C) 0 to 70
TO-220 (NDH) 5 86.0552 mm² 10.16 x 8.47 TO-220 (NEB) 5 46.4312 mm² 10.16 x 4.57
  • Up to 30 watts output power
  • AVO typically 90 dB
  • Low distortion: 0.015%, 1 kHz, 20 W
  • Wide power bandwidth: 70 kHz
  • Protection for AC and DC short circuits to ground
  • Thermal protection with parole circuit
  • High current capability: 4A
  • Wide supply range 16V-60V
  • Internal output protection diodes
  • 94 dB ripple rejection
  • Plastic power package TO-220
  • Up to 30 watts output power
  • AVO typically 90 dB
  • Low distortion: 0.015%, 1 kHz, 20 W
  • Wide power bandwidth: 70 kHz
  • Protection for AC and DC short circuits to ground
  • Thermal protection with parole circuit
  • High current capability: 4A
  • Wide supply range 16V-60V
  • Internal output protection diodes
  • 94 dB ripple rejection
  • Plastic power package TO-220

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 ±25V supplies. Using an 8 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 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 4 or 8 load on ±25V supplies. Using an 8 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 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.
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類型 標題 日期
* Data sheet LM1875 20W Audio Power Amplifier datasheet (Rev. A) 2004年 5月 13日
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 2019年 8月 26日
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 2019年 6月 27日
More literature Die D/S LM1875 MWC 20-W Audio Power Amplifier 2012年 9月 18日

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模擬型號

LM1875 PSpice Model (Rev. A)

SNAM066A.ZIP (20 KB) - PSpice Model
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模擬型號

LM1875 TINA-TI Reference Design (Rev. A)

SNAM068A.TSC (92 KB) - TINA-TI Reference Design
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模擬型號

LM1875 TINA-TI Spice Model (Rev. A)

SNAM067A.ZIP (6 KB) - TINA-TI Spice Model
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模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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