AmplifierCircuits

General Description: The CS44130 is a high-efficiency power stage for digital Class-D amplifiers designed to recieve PWM signals from a modulator such as the CS44800/600. The power stage outputs can be configured as four half-bridge channels, two half-bridge channels and one full-bridge channel, two full-bridge channels, or one parallel full-bridge channel. Features:  Configurable Outputs (10% THD+N) – 2 x 30 W into 8 Ω, Full-Bridge – 1 x 60 W into 4 Ω, Parallel Full-Bridge – 4 x 15 W into 4 Ω, Half-Bridge – 2 x 15 W into 4 Ω, Half-Bridge + 1 x 30 W  into 8 Ω, Full-Bridge  Space-Efficient, Thermally-Enhanced QFN  Package  PWM Popguard® Technology for Quiet Startup  > 100 dB Dynamic Range - System Level  < 0.12% THD+N @ 1 W - System Level  Built-In Protection with Error Reporting – Over-Current – Thermal Warning – Thermal Fault – Under-Voltage  Single (+10.8 V to +21 V) High Voltage Supply  High Efficiency (90%) ...

STA515 is a monolithic quad half bridge stage in multipower bcd technology FEATURES MULTIPOWER BCD TECHNOLOGY MINIMUM INPUT OUTPUT PULSE WIDTH DISTORTION 200mΩ RdsON COMPLEMENTARY DMOS OUTPUT STAGE CMOS COMPATIBLE LOGIC INPUTS THERMAL PROTECTION THERMAL WARNING OUTPUT UNDER VOLTAGE PROTECTION SHORT CIRCUIT PROTECTION Circuit Diagram: 2 x 40W quad power half bridge

Circuit Diagram: TDA7454 4 x 35W audio power amplifier 

General Description: The TDA7386 is an AB class audio power  amplifier, packaged in Flexiwatt 25 and designed  for high end car radio applications.  Based on a fully complementary PNP/NPN   configuration, the TDA7386 allows a rail to rail   output voltage swing with no need of bootstrap  capacitors. The extremely reduced boundary  components count allows very compact sets. Circuit Diagram: 4 x 49 W quad bridge car radio amplifier

  Circuit Diagram: 4 x 35W HIGH EFFICIENCY QUAD BRIDGE

General description: The TDA7381 is a class AB audio power amplifier in Flexiwatt25 package designed for car radio applications. Thanks to the fully complementary PNP/NPN output configuration the TDA7381  allows a rail to rail output voltage swing with no need of bootstrap capacitors. Features: 4 x 30 W/4  max. 4 x 25 W/4  EIAJ 4 x 18 W/4  @ 14.4 V, 1 kHz, 10 % 4 x 15 W/4  @ 13.2 V, 1 kHz, 10 % Clipping detector Low distortion Low output noise Standby function Mute function Automute at min. supply voltage detection Clipping Out to GND short Out to VS short Thermal shutdown Internally fixed gain (26 dB) No external compensation No bootstrap capacitors Output short circuit to GND, to VS, across the load Very inductive loads Overrating chip temperature with soft  thermal limiter Circuit diagram: 4x25 W quad bridge car radio amplifier