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OB2281AMP

Name: OB2281AMP
Rating: 4.7 (12 reviews)

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Mfr。パート #OB2281AMP
パッケージ
データシート OB2281AMP DataSheet
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仕様

Manufacturer	OB(On-Bright Elec)
Package	SOT-23-6

概要

Description

OB2281AMP is a specialized operational amplifier designed for high-performance applications. It features low distortion, high bandwidth, and exceptional linearity, making it suitable for audio processing, signal conditioning, and precision measurements. Key characteristics include low noise operation, wide supply voltage range, and high slew rate, which enhance its versatility across various electronic circuits. The amplifier's architecture is optimized for minimal feedback error, ensuring accurate signal amplification. Additionally, OB2281AMP is often utilized in applications requiring high gain stability and low temperature drift. Its compact design and robust performance make it an ideal choice for engineers seeking reliable amplification solutions in complex systems.

Features

The OB2281AMP is a highly integrated, single-stage power supply controller designed for LED lighting and other low-power applications. Key features include:
1. High Integration: Combines power MOSFET, voltage regulation, and control circuitry in a compact package.
2. Wide Input Voltage Range: Operates from 85V to 265V AC, suitable for global applications.
3. Constant Current Control: Ensures stable LED brightness and performance.
4. Integrated Switch: Reduces external component count, minimizing design complexity.
5. Low Standby Power: Designed to meet energy efficiency regulations, ensuring minimal power consumption when inactive.
6. Protection Features: Includes over-voltage, over-current, and thermal shutdown to enhance reliability.
7. Compact Size: Available in small packages, facilitating space-efficient designs.
These features make the OB2281AMP ideal for applications in LED drivers, electronic transformers, and other energy-efficient lighting systems.

Package

The OB2281AMP is typically available in a 16-pin SOIC (Small Outline Integrated Circuit) package. This package type is designed for surface-mount applications, providing a compact and efficient solution for various power management tasks.

Pinout

The OB2281AMP is a high-voltage PWM (Pulse Width Modulation) controller designed for offline switching power supplies. It typically comes in a 6-pin package.
### Pin Count and Functions:
1. VCC (Pin 1): Supply voltage input.
2. GND (Pin 2): Ground connection.
3. SW (Pin 3): Switch node; connects to the external power switch.
4. CS (Pin 4): Current sense input; monitors the switch current.
5. COMP (Pin 5): Compensation network connection for stability.
6. RT (Pin 6): Timing resistor input, used to set the switching frequency.
The OB2281AMP is commonly utilized in applications like LED drivers and adapters, offering features such as over-voltage protection, under-voltage lockout, and thermal protection to ensure safe and efficient operation.

Manufacturer

The OB2281AMP is manufactured by ON Semiconductor, a leading global supplier of semiconductor-based solutions. ON Semiconductor specializes in a wide range of products, including power management, analog, and discrete components, as well as sensors and connectivity solutions. The company serves various industries, such as automotive, industrial, and consumer electronics, focusing on energy-efficient and high-performance devices. They are recognized for their commitment to sustainability and innovation in electronic design.

Application

The OB2281AMP is a high-performance power supply controller primarily used in offline flyback converters. Its application areas include LED drivers, battery chargers, and adapters for consumer electronics, as well as industrial power supplies. The device features low standby power consumption, high efficiency, and integrated safety functions, making it suitable for various energy-efficient applications.

Equivalent

The OB2281AMP chip is a PWM controller commonly used in power supply applications. Equivalent products include the NCP1200, TOP248PN, and UC3843, among others. When looking for alternatives, consider specifications like input voltage range, output power capability, and package type to ensure compatibility. Always consult the datasheets for detailed comparisons.