Pinout

CS8508E PDF Datasheet – 8W Mono Audio Power Amplifier

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This post explains for the Audio Power Amplifier.

The Part Number is CS8508E.

The function of this semiconductor is 8W mono audio power amplifier.

Manufacturer: ETC

Preview images:

CS8508E pdf pinout

Description

The CS8508E is a high efficiency, ultra-low EMI 8.0W mono audio amplifier. An audio power amplifier amplifies the input low-power audio signal and converts it into power that can drive speakers. An 8W mono audio power amplifier provides up to 8 watts of output.

1. Portable audio systems:

Used for portable speakers, Bluetooth speakers, etc.

2. Home audio devices:

Used for amplifiers for TVs, radios, computer speakers, etc.

3. DIY audio projects:

Used for various DIY audio projects that require small amplifiers.

4. Car audio:

Used as small amplifiers in car audio systems.

 

Features:

1. Working voltage range: 2.5~8.8V

2. Class-D structure without filtering

3. Class D mode up to 90% efficiency

4. High power supply rejection ratio (PSRR): -80dB at 217Hz

5. Fast startup time (40ms)

6. Low Quiescent Current (3mA)

7. Low shutdown current (＜0.1µA)

8. Overcurrent protection, short circuit protection and overheating

 

Applications:

1. Multimedia speakers

2. loudspeaker

 

CS8508E Datasheet

DP904C PDF Datasheet – PWM Controller, TO220-5P

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This post explains for the PWM Controller.

The Part Number is DP904C.

The package is TO220-5P type.

The function of this semiconductor is pulse-width modulated Controller.

Manufacturer: ETC

Image

DP904C pdf datasheet

Description

This DP904C is a current mode pulse-width modulated (PWM) controller combined with a high-voltage power SenseFET in a single package. The PWM controller features integrated oscillator to be synchronized with the external sync signal, under-voltage lockout, optimized gate driver,
temperature compensated precise current sources for the loop compensation.

A current-mode PWM (Pulse Width Modulation) controller is an integrated circuit (IC) or semiconductor device designed to control the duty cycle of a switching power supply based on the feedback of the output current. It is commonly used in switch-mode power supplies (SMPS) to regulate and control the output voltage or current, making it a fundamental component in many electronic devices and power conversion applications.

1. Feedback Control: Current-mode PWM controllers regulate the output voltage or current by continuously monitoring the output current and adjusting the switching duty cycle accordingly. This feedback loop helps maintain precise control and stability in the power supply.

2. Switching Regulation: These controllers use PWM to control the switching operation of power transistors (usually MOSFETs) in the SMPS. By adjusting the width of the switching pulses, they regulate the energy delivered to the load.

 

Block Diagram

DP904C block diagram

 

Features

1. Quasi Resonant Converter Controller

2. Internal Burst mode Controller for Stand-by mode

3. Pulse by pulse current limiting

4. Over current Latch protection

 

Application:

1. SMPS for Monitor

2. power adapters, LED drivers, voltage regulator

3. DC-DC converter

 

DP904C PDF Datasheet

Similar features and reference parts

5Q0765RT

FS8S0765RCB

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