TPA3112D1-Q1 - 具有 SpeakerGuardT 功能的汽车类 25W 无滤波器单声道 D 类音频放大器 (TPA3112)

TPA3112D1-Q1是TI德州仪器公司的一款无产品，TPA3112D1-Q1是具有 SpeakerGuardT 功能的汽车类 25W 无滤波器单声道 D 类音频放大器 (TPA3112)，本站介绍了TPA3112D1-Q1的封装应用图解、特点和优点、功能等，并给出了与TPA3112D1-Q1相关的TI元器件型号供参考。

TPA3112D1-Q1 - 具有 SpeakerGuardT 功能的汽车类 25W 无滤波器单声道 D 类音频放大器 (TPA3112) - 无 - 中/高功率D类放大器 - 德州仪器

产品特性

Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
- Device HBM ESD Classification Level H2
- Device CDM ESD Classification Level C2
25-W into an 8-Ω Load at < 0.1% THD+N From a 24-V Supply
20-W into an 4-Ω Load at 10% THD+N From a 12-V Supply
94% Efficient Class-D Operation into 8-Ω Load Eliminates Need for Heat Sinks
Wide Supply Voltage Range Allows Operation from 8 to 26 V
Filter-Free Operation
SpeakerGuard Protection Circuitry Includes Adjustable Power Limiter Plus DC Protection
Flow Through Pin Out Facilitates Easy Board Layout
Robust Pin-to-Pin Short Circuit Protection and Thermal Protection with Auto-Recovery Option
Excellent THD+N and Pop Free Performance
Four Selectable, Fixed Gain Settings
Differential Inputs

产品应用

Automotive Noise Generation for HEV/EV
Automotive Emergency Call Systems (eCall)
Automotive Infotainment Systems (i.e. Head Unit, Connectivity Gateway, Cluster, Telematics, Navigation)
ADAS Noise Generation for Blind Spot Detection, Security and Alarm Systems
Professional Audio Equipment (i.e. PA Speakers, Studio Headphones, Performance Amplifiers, Premium Microphones)
Aerospace and Aviation Audio Systems

产品说明

The TPA3112D1-Q1 is a 25-W efficient, Class-D audio power amplifier for driving a bridge tied speaker. Advanced EMI Suppression Technology enables the use of inexpensive ferrite bead filters at the outputs while meeting EMC requirements. SpeakerGuard™ protection circuitry system includes an adjustable power limiter and a DC detection circuit. The adjustable power limiter allows the user to set a virtual voltage rail lower than the chip supply to limit the amount of current through the speaker. The DC detect circuit measures the frequency and amplitude of the PWM signal and shuts off the output stage if the input capacitors are damaged or shorts exist on the inputs.

The TPA3112D1-Q1 can drive a mono speaker as low as 4 Ω. The high efficiency of the device, > 90%, eliminates the need for an external heat sink when playing music.

The outputs are fully protected against shorts to GND, VCC, and output-to-output. The short-circuit protection and thermal protection includes an auto-recovery feature.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
TPA3112D1-Q1	HTSSOP (28)	9.70 mm × 4.40 mm

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