LA47536 bassed high power car audio amplifier circuit with explanation

This car audio amplifier circuit is based on LA47536 audio amplifier integrated circuit designed by Sanyo . This audio amplifier circuit is specially designed for car audio power amplifiers and . LA47536 car audio amplifier IC has four output channels and is capable to provide a maximum output power of 45 watts on each channel on a 4 ohms load with 10% THD .
The LA47536 includes almost all the functions required for car audio use, including a standby switch, muting function, and various protections (output pin-to-VCC short , output pin-to-GND short ,load short , over voltage , thermal shut down circuit ). It also provides a self-diagnosis function (output offset detection).

Also this audio amplifier IC has a voltage gain of 32 dB and a self-diagnosis function that detects the output offset . For powering this car audio amplifier circuit you will need a 14. 4 volts DC , or you can use the car battery ( if you will use it for car ) .
Using a 12 volts Dc power supply , the output power will be a little low , but the distortion ( THD ) will be very low .

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4A High Speed Low Side Gate Driver Circuit

 The UCC27518 and UCC27519 single-channel, high-speed, low-side gate driver device is capable of effectively driving MOSFET and IGBT power switches. Using a design that inherently minimizes shoot-through current, UCC27518 and UCC27519 are capable of sourcing and sinking high, peak-current pulses into capacitive loads offering rail-to-rail drive capability and extremely small propagation delay typically 17 ns.

  4A High-Speed Low-Side Gate Driver Circuit

 The UCC27518 and UCC27519 provide 4-A source, 4-A sink (symmetrical drive) peak-drive current capability at VDD = 12 V. The UCC27518 and UCC27519 are designed to operate over a wide VDD range of 4.5 V to 18 V and wide temperature range of -40°C to 140°C. Internal Under Voltage Lockout (UVLO) circuitry on VDD pin holds output low outside VDD operating range.

Features

• Low-Cost, Gate-Driver Device Offering Superior Replacement of NPN and PNP Discrete Solutions
• Pin-to-Pin Compatible With TI’s TPS2828 and the TPS2829
• 4-A Peak Source and 4-A Peak Sink Symmetrical Drive
• Fast Propagation Delays (17-ns typical)
• Fast Rise and Fall Times (8-ns and 7-ns typical)
• 4.5-V to 18-V Single Supply Range
• Outputs Held Low During VDD UVLO (ensures glitch free operation at power-up and power-down)
• CMOS Input Logic Threshold (function of supply voltage with hysteresis)
• Hysteretic Logic Thresholds for High Noise Immunity
• EN Pin for Enable Function (allowed to be no connect)
• Output Held Low when Input Pins are Floating
• Input Pin Absolute Maximum Voltage Levels Not Restricted by VDD Pin Bias Supply Voltage
• Operating Temperature Range of -40°C to 140°C
• 5-Pin DBV Package (SOT-23)

Device Uses

• Switch-Mode Power Supplies
• DC-to-DC Converters
• Companion Gate Driver Devices for Digital Power Controllers
• Solar Power, Motor Control, UPS
• Gate Driver for Emerging Wide Band-Gap Power Devices (such as GaN)

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