MAX253CSA+

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MAX253CSA+

IC XFRMR DRIVER RS485 8-SOIC

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  • Fr. Teil #MAX253CSA+
  • Paket SOIC-8
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Spezifikationen

Package Tube
ProductStatus Obsolete
Applications Transformer Driver
Current-Supply 450µA
Voltage-Supply 3.3V, 5V
OperatingTemperature 0°C ~ 70°C
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

Übersicht

Description

The MAX253CSA+ is a versatile, high-frequency, dual-output DC-DC converter designed for generating negative voltages from a single positive input supply. It utilizes a charge pump architecture, allowing for efficient voltage inversion with minimal external components. This IC can provide up to -5V output from a +5V input, making it ideal for applications in sensor biasing, operational amplifier circuits, and other analog systems requiring negative voltage.
Key features include a high efficiency of up to 95%, low ripple output, and the capability to deliver up to 100mA per output. The device operates with a wide input voltage range of 2.7V to 5.5V and features built-in protection mechanisms such as thermal shutdown and short-circuit protection.
The MAX253CSA+ is available in a compact 8-pin SOIC package, making it suitable for space-constrained applications. Its simplicity and reliability make it a popular choice in various electronic designs requiring negative voltage generation.

Features

The MAX253CSA+ is a versatile, dual-supply, boost converter designed for generating negative voltages from positive input sources. Key features include:
1. Input Voltage Range: Operates with input voltages from 2.5V to 10V.
2. Output Voltage: Capable of generating negative output voltages up to -10V.
3. Max Output Current: Provides up to 100mA output current.
4. Efficiency: High efficiency, typically around 85% or more, which minimizes power loss.
5. Compact Package: Available in a 16-pin DIP package, facilitating easy integration into designs.
6. Built-in Protection: Features thermal shutdown and short-circuit protection for enhanced reliability.
7. Ease of Use: Requires minimal external components for operation, simplifying design efforts.
8. Frequency: Operates at a switching frequency of approximately 100kHz, allowing for smaller inductor sizes.
This IC is commonly used in applications requiring negative voltage supplies, such as operational amplifiers and analog signal processing.

Package

The MAX253CSA+ is packaged in a SOIC (Small Outline Integrated Circuit) format with a 14-lead configuration. This package type is designed for surface-mount applications, providing a compact solution for integrating the device into electronic circuits.

Pinout

The MAX253CSA+ is a high-voltage DC-DC converter with a pin count of 8.
Pin Functions:
1. V+: Positive supply voltage (up to 60V).
2. SW: Switch node for connecting the inductor.
3. GND: Ground reference.
4. VIN: Input voltage pin (usually lower than V+).
5. VOUT: Output voltage for the load.
6. COMP: Compensation network connection for stability.
7. R1: External resistor for feedback and gain adjustment.
8. R2: External resistor for feedback and gain adjustment.
The MAX253CSA+ is typically used in applications like isolated power supplies and driving high-voltage devices, thanks to its ability to generate dual outputs using an external transformer.

Manufacturer

The MAX253CSA+ is manufactured by Analog Devices, Inc. (ADI). Analog Devices is a global company specializing in the design and manufacturing of high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965, the company serves a wide range of industries, including automotive, industrial, communications, healthcare, and consumer electronics. ADI is known for its innovation in signal processing and providing solutions for complex engineering challenges, making it a key player in the semiconductor industry.

Application

The MAX253CSA+ is a high-efficiency, high-voltage DC-DC converter used primarily in applications requiring isolated power conversion. Key application areas include powering sensors, driving optocouplers, and supplying voltage for isolated communication systems. It is commonly utilized in industrial equipment, telecommunications, medical devices, and portable electronics, where compact size and reliability are essential.

Equivalent

The MAX253CSA+ is a dual, high-voltage, low-noise, charge-pump DC-DC converter. Equivalent products include the ICL7660, LTC1044, and TPS60130. These alternatives may vary in specifications, so it's important to check their datasheets for compatibility with your application requirements.

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