LM48100Q-Q1 - 具有输出故障检测和音量控制功能的单声道 1.3W 音频功率放大器

LM48100Q-Q1是TI德州仪器公司的一款扬声器放大器（AB类/D类）产品，LM48100Q-Q1是具有输出故障检测和音量控制功能的单声道 1.3W 音频功率放大器，本站介绍了LM48100Q-Q1的封装应用图解、特点和优点、功能等，并给出了与LM48100Q-Q1相关的TI元器件型号供参考。

LM48100Q-Q1 - 具有输出故障检测和音量控制功能的单声道 1.3W 音频功率放大器 - 扬声器放大器（AB类/D类） - 低功耗放大器 - 德州仪器

产品特性

Output Fault Detection
I2C Volume and Mode Control
Input Mixer and Multiplexer
High PSRR
Individual 32-Step Volume Control
Short Circuit and Thermal Protection
Advanced Click-and-Pop Suppression
Low-Power Shutdown Mode
Available in 14-Pin HTSSOP Package
Key Specifications:
- Output Power at VDD = 5 V, RL = 8 Ω, THD+N ≤ 1% 1.3 W (Typical)
- Quiescent Power Supply Current at 5 V, 6 mA (Typical)
- PSRR at 1 kHz 74 dB (Typical)
- Shutdown current 0.01 μA (Typical)

产品应用

Automotive Instrument Clusters
Hands-Free Car Kits
Medical

产品说明

The LM48100Q-Q1 is a single supply, mono, bridge-tied load amplifier with I2C volume control, ideal for automotive applications. A comprehensive output fault detection system senses the load conditions, protecting the device during short circuit events, as well as detecting open circuit conditions.

Operating from a single 5-V supply, the LM48100Q-Q1 delivers 1.3 W of continuous output power to an 8 Ω load with < 1% THD+N. Flexible power supply requirements allow operation from 3 V to 5.5 V. High power supply rejection ratio (PSRR), 74 dB at 1 kHz, allows the device to operate in noisy environments without additional power supply conditioning.

The LM48100Q-Q1 features dual audio inputs that can be mixed/multiplexed to the device output. Each input path has its own independent, 32-step volume control. The mixer, volume control and device mode select are controlled through an I2C compatible interface. An open drain FAULT output indicates when a fault has occurred. Comprehensive output short circuit and thermal overload protection prevent the device from being damaged during a fault condition.

A low power shutdown mode reduces supply current consumption to 0.01 µA. Superior click and pop suppression eliminates audible transients on power-up/down and during shutdown. The LM48100Q-Q1 is available in an 14-pin HTSSOP PowerPAD™ IC package.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
LM48100Q-Q1	HTSSOP (14)	5.00 mm × 4.40 mm

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