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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| Category | |
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| Halogen Free | |
| SVHC Present | |
| Tape & Reel |
The Texas Instruments TPA2001D1PWR is a 1-W mono bridge-tied-load (BTL) Class-D audio amplifier. It is designed to drive speakers with an impedance of 8 ohms or higher. This amplifier utilizes TI's third-generation modulation technique, which enhances efficiency and signal-to-noise ratio (SNR). A key feature is its filterless design, allowing direct connection to the speaker without an LC output filter, which is common in Class-D amplifiers. This design choice contributes to improved efficiency, making it suitable for battery-powered devices where extending battery life is crucial.
The TPA2001D1PWR offers integrated depop circuitry to minimize turn-on pops. It supports multiple internal gain settings ranging from 6 dB to 23.5 dB, controlled via GAIN1 and GAIN0 input terminals. The device operates over an ambient temperature range of -40°C to 85°C. It is available in a 16-pin TSSOP package.
Key electrical characteristics include a typical supply current of 4 mA (without filter) and a low shutdown current of 0.05 µA. The amplifier provides an output power of 1 W into an 8-ohm load with less than 1% THD+N. Total Harmonic Distortion plus Noise (THD+N) is less than 0.2% at 1 W and 1 kHz into an 8-ohm load. The device also features short-circuit protection for battery, ground, and load conditions.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.87 | $0.87 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The analog and power stage supplies both operate from 2.5V to 5.5V.
It is available in a 16-pin TSSOP package (6.4mm x 5mm).
-40°C to 85°C.
1W into an 8Ω load with less than 1% THD+N.
Total harmonic distortion plus noise is typically 0.1% at 1W, 1kHz into 8Ω (maximum 0.2%).
Typical efficiency is 80% into an 8Ω load, ranging from 75% to 85%.
Four internal gain settings: 6dB, 12dB, 18dB, and 23.5dB.