BC847B/215
Nexperia USA Inc.
The Nexperia USA Inc. BC847B/215 is a bipolar transistor. It is RoHS3 Compliant and has an MSL Level 1 rating.
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40,178 pcs
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40178 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
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8,313 pcs
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8313 pcs | On Request | 1 | On Request | On Request | 09+ | On Request | On Request |
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The Texas Instruments LM4991MA is a versatile 3W mono Class-AB audio amplifier designed for various audio applications. It accepts analog input and operates within a wide supply voltage range of 2.2V to 5.5V.
Key electrical specifications include an output power of 3W into a 3Ω load at 10% THD when powered by 5V, and a low total harmonic distortion plus noise of 0.2% at 1kHz. The amplifier features a minimum load impedance of 3Ω and a typical shutdown current of 0.1µA, making it suitable for power-sensitive applications.
This amplifier operates within a temperature range of -40°C to 85°C. It is available in space-saving SOIC (D) and WSON (NGN) packages, both supporting surface mount installation.
The LM4991MA offers improved PSRR and is unity-gain stable. It also includes an ultra-low current shutdown mode and improved click and pop circuitry to reduce noises during turn-on and turn-off transitions.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The supply voltage range is 2.2V to 5.5V.
The LM4991MA is available in SOIC (D) and WSON (NGN) surface-mount packages.
The operating temperature range is -40°C to 85°C.
The LM4991MA delivers 3W into 3Ω, 2.5W into 4Ω, and 1.5W into 8Ω at 5V supply with 10% THD.
The maximum THD+N is 0.2% at 1kHz.
The typical shutdown current is 0.1µA.
The typical PSRR is 64dB at 217kHz and 1kHz.
