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Showing posts with the label 6 Ω

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…

70W (6Ω) x 1ch BTL Power Amplifier Built-in Standby and Muting Features Incorporating Various Protection Circuits

20W+20W+20W AF Power Amplifier

The STK400-030 is a 3-channel AF power amplifier IC supporting multichannel speakers. One package includes 20W×3ch for Lch, Rch and Cch. It is pin compatible with both 3-channel output devices (STK400-*00 series) and 2- channel output devices (STK401-*00 series). The output load impedance is 6/3Ω.
New series combining 3-channel output devices (STK400-*00 series) and 2-channel output devices (STK401-*00 series) with the same pin compatibility. Output load impedance is 6/3Ω. Pin assignment is grouped into individual blocks of inputs, outputs and supply lines, minimizing the adverse effects of pattern layout on operating characteristics.Minimum number of external components required.Circuit Diagram:

2 x 200W or 400W BTL Power Amplifier

Description STA516B is a monolithic quad half-bridge stage in multipower BCD technology. The device can be used as dual bridge or reconfigured, by connecting pin CONFIG to pins VDD, as a single  bridge with double-current capability or as a half bridge (binary mode) with half current capability. The device is designed, particularly, to be the  output stage of a stereo all digital high efficiency  amplifier. It is capable of delivering 200 W + 200 W into 6  loads with THD = 10% at VCC = 51 V or, in single BTL configuration, 400 W  into a 3 load with THD = 10% at VCC = 52 V. The input pins have a threshold proportional to the voltage on pin VL. The STA516B is aimed at audio amplifiers in hi-fi applications, such as home theatre systems, active speakers and docking stations. It comes in a 36 pin PowerSO package with exposed pad up (EPU).
Features Low input/output pulse width distortion200 m RdsON complementary DMOS output stageCMOS compatible logic inputsThermal protectionThermal warnin…

Power stage 2 x 15 to 25 W class-D

High efficiency (> 94 %) Operating voltage from ±7.5 V to ±30 V Very low quiescent current High output power Diagnostic output Usable as a stereo Single-Ended (SE) amplifier Electrostatic discharge protection (pin to pin) No heatsink required.
Television sets Home-sound sets Multimedia systems All mains fed audio systems.
The TDA8925 is a switching power stage for a high efficiency class-D audio power amplifier system. With this power stage a compact 2 × 15 W self oscillating digital amplifier system can be built, operating with high efficiency and very low dissipation. No heatsink is required. The system operates over a wide supply voltage range from ±7.5 V up to ±30 V and consumes a very low quiescent current.
Circuit Diagram: