TPA0253中文资料具有 85mW 耳机放大器的 1W 单声道、模拟输入 AB 类音频放大器数据手册TI规格书

描述 Description

The TPA0253 is a 1-W mono bridge-tied-load (BTL) amplifier designed to drive speakers with as low as 8- speaker.

The gain of the input stage is set by the user-selected input resistor and a 50-k/RI in BTL mode. The input terminals are high-impedance CMOS inputs, and can be used as summing nodes.

The TPA0253 is available in the 10-pin thermally-enhanced MSOP package (DGQ) and operates over an ambient temperature range of –40°C to 85°C.

特性 Features

• Ideal for Notebook Computers, PDAs, and Other Small Portable Audio Devices
• 1 W Into 8- From 5-V Supply
• 0.3 W Into 8- From 3-V Supply
• Stereo Head Phone Drive
• Mono (BTL) Signal Created by Summing Left and Right Signals Internally
• Wide Power Supply Compatibility    2.5 V to 5.5 V
• Low Supply Current
• 3.2 mA Typical at 5 V
• 2.7 mA Typical at 3 V

• Shutdown Control ...1 uA Typical
• Shutdown Pin Is TTL Compatible
• –40°C to 85°C Operating Temperature Range
• Space-Saving, Thermally-Enhanced MSOP Packaging