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HT2145 - Class D Audio Power Amplifier

General Description

HT2145 is a low-EMI, Anti-Clipping, filter-less, monaural Class D power amplifier with an output power of 3.4W.

It has a high efficiency for mobile applications with Class AB amplifier performance.

Key Features

  • 2.6 W×1ch (VDD=5.0V, RL=4Ω, THD+N=10%) 0.8 W×1ch (VDD=3.6V, RL=8Ω, THD+N=10%) Efficiency 89% (VDD=5.0V, RL=8Ω, Po=1W) 84% (VDD=3.6V, RL=8Ω, Po=600mW) Excellent Click-Pop Noise Reduction Function High S/N Ratio, 95dB (VDD=3.6V, Av=18dB) Low Shutdown Current, 0.01µA Internal Fixed Gain of 8 V/V (18dB) Over-Current Protection Function Thermal Protection Function Low Voltage Malfunction Prevention Function Pb-Free Packages, 8-pin SOP.

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Datasheet Details

Part number HT2145
Manufacturer Heroic
File Size 222.05 KB
Description Class D Audio Power Amplifier
Datasheet download datasheet HT2145 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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HT2145 HT2145 HT2145 Brief Introduction （2-3） English Version (Page 4 - 6) ©2011, -1- 03/2011 – V1.0 HT2145 2.6WEMID „ (Anti-Clipping Function, ACF) EMI ， 2.6 W×1ch (VDD=5.0V, RL=4Ω, THD+N=10%) 0.8 W×1ch (VDD=3.6V, RL=8Ω, THD+N=10%) 89% (VDD=5.0V, RL=8Ω, Po=1W) 84% (VDD=3.6V, RL=8Ω, Po=600mW) “-”(Click-Pop) SNR：95dB (VDD=3.6V, Av=18dB) ：0.01µA 18dB ，SOP-8 „ ， PDAs GPS PMP/MP4 USB iphone, MP3/4 docking „ „ HT2145EMI，， D ， 5V ， 10% THD+N，4Ω，3.4W， （100mW） AB。 HT2145（ACF） ，、 （）， ，，， 。， ACF-1ACF-2， ，ACF-Off。 HT2145（EMI） ， FCC Part15 Class B ， 。 HT2145， ， ，， 。， ， 。 ，HT2145 ，、 。 CTRL1 RCTRL1 CTRL2 RCTRL2 RCTRL3 CIN IN+ 33nF CIN IN33nF CS 1µF VDD PWM EMI ＋ OUT+ OUT- CCTRL 0.