TPA2100P1

适用于压电/陶瓷扬声器的 19Vpp 单声道 D 类音频放大器 TPA2100

The sometimes referred to as TPA2100 is a mono, Class-D audio power amplifier with integrated DC-DC converter designed for piezo and ceramic speakers. The TPA2100P1 TPA2100 is capable of driving a ceramic / piezo speaker with 19 VPP 6.7 VRMS from a 2.5 V power supply at less than 1% THD+N.

The DC-DC converter operates at a fixed frequency of 1.2 MHz. The TPA2100P1 TPA2100 DC-DC converter provides a 10 V supply with a minimum number of external components. The DC-DC converter can be used to drive other components that require a 10 V supply voltage note: audio signal must be present for proper functionality of boost converter.

The TPA2100P1 TPA2100 features an integrated audio low pass filter that rejects high frequency noise CODEC out-of-band and RF noise thus improving audio fidelity.

The TPA2100P1 TPA2100 has three gain modes of 12 dB, 16 dB, and 24 dB. The TPA2100P1 TPA2100 provides thermal and short circuit protection on the boost converter and the Class-D audio amplifier. The TPA2100P1 TPA2100 is available in a 16-ball 2,1 mm × 2,1 mm WCSP package. The TPA2100P1 TPA2100 requires only one small external inductor for operation.

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19 VPP Output Load Voltage From a 2.5 V Supply

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Integrated DC-DC Converter Generates 10 V Supply

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No External Schottky Diode Required

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Integrated Audio Input Low-Pass Filter

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Small Boost Converter Inductor

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Supply Voltage Range From 2.5 V to 5.5 V

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Selectable Gain of 12 dB, 16 dB, and 24 dB

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Independent Shutdown Control for the Boost Converter and the Audio Amplifier

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Fast Startup Time: 8 ms

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Low Supply Current: 5.5 mA

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Low Shutdown Current: < 1 µA

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Short-Circuit and Thermal Protection

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Space Saving Package

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2,1 mm × 2,1 mm NanoFree WCSP YZH

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APPLICA ONS

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Wireless or Cellular Handsets

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Portable DVD Player

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Personal Digital Assistants PDAs

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Electronic Dictionaries

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Digital Still Cameras