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30 Watt x 2 CH AUDIO POWER AMPLIFER

TA8233H Circuit Diagram

30 Watt stereo digital amplifier power stage

FEATURES 2 × 30 W (BTL) Into 6 Ω at 1 kHz 95-dB Dynamic Range (in System With TAS5026) < 0.2% THD+N (in System – 30 W RMS Into 6-Ω Resistive Load)Device Power Efficiency Typical >90% Into6-Ω LoadSelf-Protection Design (IncludingUndervoltage, Overtemperature, and ShortConditions) With Error ReportsInternal Gate Drive Supply Voltage RegulatorEMI Compliant When Used WithRecommended System Design DESCRIPTION The TAS5122 is a high-performance, integrated stereo digital amplifier power stage designed to drive 6-Ω speakers at up to 30 W per channel. The device incorporates TI’s PurePath Digital technology and is used with a digital audio PWM processor (TAS50XX) and a simple, passive demodulation filter to deliver high-quality, high-efficiency, true-digital audio amplification. The efficiency of this digital amplifier is typically greater than 90%. Overcurrent protection, overtemperature protection, and undervoltage protection are built into the TAS5122, safeguarding the device and speak…

30W BTL × 2ch Audio Power Amplifier

General Description: The thermal resistance θj−T of TA8220H package designed for low thermal resistance, has high efficiency of heat radiation. The temperature rise of chip can be reduced, and the influence from the degradation of the features due to the temperature rise at the high output can also be reduced. This stereo audio power IC, designed for car audio use, has two  built−in channels to reduce the characteristic difference between L and R channels. It also contains output short detection circuit, output clip detection and various kind of protection. 
Features:
Low thermal resistance: θj−T = 1.5°C / W (infinite heat sink)  High power: POUT (1) = 30W (typ.) / channel (VCC = 14.4V, f = 1kHz, THD = 10%, RL = 2Ω) : POUT (2) = 26W (typ.) / channel (VCC = 13.2V, f = 1kHz, THD = 10%, RL = 2Ω) : POUT (3) = 19W (typ.) / channel (VCC = 13.2V, f = 1kHz, THD = 10%, RL = 4Ω)  Low distortion ratio: THD = 0.04% (typ.) (VCC = 13.2V, f = 1kHz, POUT = 1W, RL = 4Ω, GV = 50dB)  Low noise: VNO = …

High Efficiency Power Amplifier 2 x 30W into 8Ω or 1 x 60W into 4 Ω

GENERAL DESCRIPTION
The DDX-2050 power device is a monolithic dual channel H-Bridge that can provide up to 30 watts  per channel of audio power at very high efficiency. The DDX-2050 power device  contains a logic interface, integrated bridge  drivers, high efficiency MOSFET output  transistors and protection circuitry. The device  may be used as a dual bridge or reconfigured as  a single bridge with double the output current  capability.  The benefits of the DDX amplification system are  an all-digital design that eliminates the need for a  digital to analog converter (DAC) and the high  efficiency operation derived from the use of  Apogee's patented damped ternary pulse width  modulation (PWM). This approach provides an  efficiency advantage over conventional Class-D  designs and up to three times the efficiency of  typical Class A/B amplifiers with music input  signals.

2 x 30W dual bridge car radio amplifier

Circuit Diagram:


2x30W DUAL/QUAD POWER AMPLIFIER FOR CAR RADIO TDA7377

Features:

HIGH OUTPUT POWER CAPABILITY:2 x 35W max./4Ω2 x30W/4Ω EIAJ2 x30W/4Ω EIAJ2 x 20W/4Ω @14.4V, 1KHz, 10%4 x 6W/4Ω @14.4V,1KHz, 10%4 x 10W/2Ω @14.4V, 1KHz, 10%MINIMUM EXTERNAL COMPONENTSCOUNT:– NO BOOTSTRAP CAPACITORS– NO BOUCHEROT CELLS– INTERNALLY FIXED GAIN (26dB BTL)ST-BY FUNCTION (CMOS COMPATIBLE)NOAUDIBLEPOPDURINGST-BYOPERATIONSDIAGNOSTICS FACILITY FOR:– CLIPPING– OUT TO GND SHORT– OUT TO VS SHORT– SOFT SHORT AT TURN-ON– THERMAL SHUTDOWN PROXIMITYProtections:OUPUT AC/DC SHORT CIRCUIT– TO GND– TO VS– ACROSS THE LOADSOFT SHORT AT TURN-ONOVERRATING CHIP TEMPERATURE WITHSOFT THERMAL LIMITERLOAD DUMP VOLTAGE SURGEVERY INDUCTIVE LOADSFORTUITOUS OPEN GNDREVERSED BATTERYESDCircuit Diagram: