MAX253ESA

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MAX253ESA

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IC XFRMR DRIVER RS485 8-SOIC

  • HerstellerAnalog Devices Inc./Maxim Integrated

  • Herstellerteil #MAX253ESA

  • Auf Lager5542

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90-Tage Kundendienstgarantie

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Spezifikationen

Attribut Wert
Part Status Obsolete
Applications Transformer Driver
Supply Current 450µA
Voltage - Supply 3.3V, 5V
Operating Temperature -40°C ~ 85°C
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC
Base Product Number MAX253

Übersicht

Description

The MAX253ESA is a dual, high-voltage, integrated DC-DC converter designed for generating positive and negative voltages from a single supply. It belongs to the family of charge pump circuits and is commonly used in applications requiring bipolar power supplies, such as operational amplifiers, sensors, and analog signal processing.
Key features of the MAX253ESA include a wide input voltage range (up to 12V), the ability to deliver up to 200mA of output current, and a low quiescent current, making it efficient for battery-operated devices. It operates using a simple external capacitor configuration for voltage conversion, eliminating the need for inductors, which helps reduce size and component count.
The device includes built-in protection features like thermal shutdown and current limiting, ensuring reliable operation. Its compact 8-pin DIP or SO package makes it suitable for space-constrained applications. Overall, the MAX253ESA is an effective solution for generating dual supplies in various electronic circuits.

Equivalent

The MAX253ESA chip is a dual capacitor voltage inverter. Equivalent products include:
1. LM2575 - A step-down voltage regulator.
2. LT1054 - An inverter and voltage doubler.
3. MIC inverter series - Various models for similar applications.
4. MAX660 - A voltage inverter with similar functionality.
Always check specific electrical characteristics and pin configurations for compatibility before substitution.

Features

The MAX253ESA is a high-efficiency, low-power DC-DC converter designed for generating negative voltages. Key features include:
- Voltage Conversion: It converts a positive input voltage to a negative output voltage, typically from +2V to +10V input to -5V output.
- Output Current: Capable of providing up to 100 mA output current.
- Efficiency: High efficiency (up to 90%) minimizes heat generation.
- Integrated Components: It incorporates oscillators, amplifiers, and control circuitry, reducing external component count.
- Compact Size: Available in an 8-pin DIP package, suitable for space-constrained applications.
- Wide Operating Temperature: Operates over a temperature range of -40°C to +125°C, enabling use in harsh environments.
- Low Quiescent Current: Designed for low power applications with a quiescent current of only 50 µA.
- Adjustable Output Voltage: Allows customization of output voltage levels through external resistors.
These features make the MAX253ESA ideal for applications in portable devices, analog signal processing, and instrumentation.

Pinout

The MAX253ESA is a dual switch-mode DC-DC boost converter designed for generating negative voltages. It features a total of 8 pins.
The pin functions are as follows:
1. N.C. - No Connection
2. VIN - Input voltage (positive supply)
3. GND - Ground reference
4. SW - Switch node connection
5. VOUT - Output voltage (negative supply)
6. COMP - Compensation node for loop stability
7. CS - Current sense input for overcurrent protection
8. RAMP - Ramp voltage input for PWM control
These pins facilitate the operation of the device in applications such as generating negative voltages for op-amps or other analog circuits. The MAX253ESA is commonly used in various electronic applications where small footprints and efficient power conversion are essential.

Manufacturer

The MAX253ESA is manufactured by Maxim Integrated, which is a company known for designing and producing analog and mixed-signal integrated circuits. Maxim Integrated focuses on a wide range of applications, including power management, automotive, communications, and industrial electronics.
Founded in 1983, the company specializes in solutions that enable a variety of electronic devices and systems to perform better and more efficiently. In 2020, Maxim Integrated was acquired by Analog Devices, a leading global semiconductor company that provides a wide array of analog, mixed-signal, and digital signal processing technologies.
The MAX253ESA specifically is a high-voltage, dual output DC-DC converter used in applications requiring efficient power conversion. Its features make it suitable for powering devices in telecommunications, automotive, and industrial sectors, showcasing Maxim Integrated's commitment to innovation in power management solutions.

Application

The MAX253ESA is a low-cost, dual-output, high-frequency boost converter primarily used in applications requiring high-voltage power supplies. Key application areas include:
1. Photovoltaic Systems - Boosting voltage from solar cells.
2. Battery-Powered Devices - Generating high voltages from low battery voltages.
3. LED Drivers - Providing necessary voltage for driving LEDs.
4. Telecommunication Equipment - Powering high-voltage circuits.
5. Signal Conditioning - Amplifying sensor outputs in industrial applications.
6. Medical Devices - Powering high-voltage components in portable medical equipment.
Its versatility makes it suitable for various electronic devices requiring efficient voltage regulation.

Package

The MAX253ESA is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) format.

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