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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29,470 pcs
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29470 pcs | On Request | 1 | On Request | On Request | 16+pb | On Request | On Request |
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The TS4990IJT from STMicroelectronics is a 1.2 W audio power amplifier designed for various audio applications. It incorporates an active-low standby mode for power efficiency.
Key electrical characteristics include a typical output power of 300 mW into an 8 Ω load with a total harmonic distortion (THD) of 0.1% at 1 kHz. The amplifier operates with a supply current typically around 6 mA and a standby current in the nanoampere range. It also features a high power supply rejection ratio (PSRR) of up to 62 dB at 1 kHz, ensuring clean audio output.
The device has a wake-up time of 125 ms and a standby time of 10 µs, facilitating quick transitions between modes. The output offset voltage is kept low, typically within 10 mV. The gain bandwidth product is 1.5 MHz, suitable for a range of audio frequencies.
This audio power amplifier is designed for integration into systems where space and power are considerations. Its specifications make it suitable for portable audio devices, consumer electronics, and other applications requiring a compact and efficient audio amplification solution.
The TS4990IJT delivers 300mW maximum output power into an 8Ω load at 1% THD.
The typical supply current is 6mA, with a minimum of 3.1mA under no-load conditions.
THD+N is 0.1% maximum at 200mW output into 8Ω.
Standby current is 10nA minimum and 1000nA maximum when V STBY is tied to GND.
Wake-up time is 125ms maximum with a 1µF capacitor.
PSRR is 55dB minimum at both 217Hz and 1kHz with a 200mVpp ripple.
The gain bandwidth product is 1.5MHz minimum.