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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The TPA2005D1DGNR from Texas Instruments is a 1.4-W, mono, filter-free Class-D audio power amplifier. It is designed for efficient operation, offering high battery life and minimal heat generation. The amplifier supports an analog input and features a hardware control interface.
Key electrical specifications include a power stage supply voltage range of 2.5V to 5.5V, capable of delivering 1.4W into an 8-ohm load from a 5V supply with 10% THD. It exhibits a typical THD+N of 0.2% at 1kHz. The device operates with a low quiescent current of 2.8mA and a shutdown current of 0.5µA, making it suitable for power-sensitive applications.
This amplifier utilizes an optimized PWM output stage that eliminates the need for an LC output filter. It operates with an internally generated switching frequency of 250kHz. The TPA2005D1DGNR is available in space-saving packages such as HVSSOP, VSON, QFN, MicroStar Junior BGA, and MSOP PowerPAD, supporting surface mount installation.
The operating temperature range is from -40°C to 85°C. Its design includes improved PSRR and CMRR, reducing the need for external components like voltage regulators and bypass capacitors.
| Qty | Low | High |
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| 1+ | $0.63 | $0.63 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The analog supply and power stage supply both range from 2.5V to 5.5V.
Package options include HVSSOP (DGN), VSON (DRB), QFN, MicroStar Junior BGA, and MSOP PowerPAD.
The operating temperature range is -40°C to 85°C.
The output power is 1.4W into 8Ω from a 5V supply at THD = 10%.
Efficiency is 84% at 400mW into an 8Ω speaker and 79% at 100mW into an 8Ω speaker.
Quiescent current is 2.8mA and shutdown current is 0.5µA.
THD+N is 0.2% at 1kHz.