Mfr. #: TPA6304QDDVRQ1 Original stock 23+
Mfr.:Texas Instruments
Audio Amplifiers 45-W, 2.1-MHz analog input 4-channel automotive Class-D Burr-Brown™ audio amplifier 44-HTSSOP -40 to 125
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Texas Instruments TPA6304-Q1 Class-D Audio Amplifier
Texas Instruments TPA6304-Q1 Class-D Audio Amplifier is a four-channel analog-input Class-D Burr-Brown™ audio amplifier that implements a 2.1MHz PWM switching frequency. This device enables a cost-optimized solution in a very small 2.7cm2 PCB size, high impedance single-ended inputs, and full operation down to 4.5V for start/stop events.
The Texas Instruments TPA6304-Q1 Class-D audio amplifier has an optimal design for use in entry-level automotive head units that provide analog audio input signals as part of their system design. The Class-D topology dramatically improves efficiency over traditional linear amplifier solutions.
The output switching frequency can be set either above or below the AM band. If the output switching frequency is set above the AM band it eliminates the AM band interference and reduces output filter size and cost. If the output switching frequency is set below AM band it will further optimize efficiency. The device is available in a 44 pin HTSSOP package with the exposed thermal pad up.
FEATURES
Highest efficiency Class-D
Significantly more efficient than Class-AB
Reduce thermal solution with 75% less heat dissipation than Class-AB
Start/stop operation down to 4.5V
AEC-Q100 Qualified for automotive applications
Temperature grade 1: –40°C to 125°C TA
HBM ESD Classification level 2
CDM ESD Classification level C2B
27W, 10% THD into 4Ω at 14.4V
Drives 4Ω and 2Ω loads
Load diagnostics
Output open shorted load
Output-to-battery or ground shorts
Tweeter connected
Designed with advanced gate drive to meet CISPR25-L5 EMC specification
Class-D at 2.1MHz, no AM interference
Spread Spectrum mode, Phase Offset, Slew Rate Control
Protection
40V Load dump
Output short protection
DC offset and over temperature
Fortuitous open ground and power tolerant
Audio inputs
4 Channel single-ended analog input
10dB, 16dB, 22dB or 28dB Gain option
Supports parallel channel drive (PBTL)
Audio performance into 4Ω at 14.4V, 1kHz
THD+N < 0.006%
42µVRMS output noise
80dB PSRR
Efficiency > 80%
Special features
Programmable clip detection
Load current limiter
Thermal gain foldback
Fast and autonomous startup diagnostics
AC load impedance measurement with < 10mA load current
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2 минуты
18 июля 2024