MAX5926EEE+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-Voltage Hot Swap Controller
• Package: 16-pin QSOP (Quarter Small Outline Package)
• Essence: Provides safe and efficient hot swapping of high-voltage power supplies
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 7V to 80V
• Operating Temperature Range: -40°C to +85°C
• Maximum Output Current: 1A
• Fault Protection: Overvoltage, Undervoltage, Overcurrent, Overtemperature

Pin Configuration

The MAX5926EEE+T has a 16-pin QSOP package with the following pin configuration:

1. VCC
2. GND
3. FLT
4. IN+
5. IN-
6. OUT
7. SENSE
8. REF
9. ADJ
10. EN
11. ILIM
12. OVSET
13. UVSET
14. OCSET
15. TSET
16. NC

Functional Features

• Hot Swap Control: Enables safe insertion and removal of high-voltage power supplies without causing damage or disruption.
• Fault Detection: Monitors various parameters such as overvoltage, undervoltage, overcurrent, and overtemperature conditions to protect the system.
• Adjustable Parameters: Allows customization of current limit, overvoltage threshold, undervoltage threshold, and thermal shutdown temperature.
• Soft-Start Function: Gradually ramps up the output voltage during power-up to prevent excessive inrush current.

Advantages and Disadvantages

Advantages: - Efficient and reliable hot swapping of high-voltage power supplies. - Comprehensive fault protection mechanisms ensure system safety. - Adjustable parameters provide flexibility for different applications. - Soft-start function prevents inrush current.

Disadvantages: - Limited maximum output current of 1A. - Requires careful consideration of thermal management due to high-voltage operation.

Working Principles

The MAX5926EEE+T is designed to facilitate the safe insertion and removal of high-voltage power supplies. It utilizes a combination of fault detection, current limiting, and soft-start techniques to protect the system and ensure smooth operation.

During normal operation, the IC monitors the input voltage, output current, and temperature. If any of these parameters exceed the predefined thresholds, the fault detection mechanism triggers appropriate actions such as shutting down the output or activating an alarm signal.

The current limit can be adjusted using the ILIM pin, allowing customization based on the specific requirements of the application. Similarly, the overvoltage and undervoltage thresholds can be set using the OVSET and UVSET pins, respectively.

During power-up, the soft-start function gradually increases the output voltage, preventing excessive inrush current that could damage the system components.

Detailed Application Field Plans

The MAX5926EEE+T finds applications in various fields where hot swapping of high-voltage power supplies is required. Some potential application areas include:

1. Telecom Infrastructure: Enables safe replacement of power modules in telecom equipment without interrupting the operation.
2. Industrial Automation: Facilitates maintenance and upgrades of high-voltage power systems in industrial automation setups.
3. Data Centers: Allows for seamless replacement of power supplies in server racks, ensuring uninterrupted operation.
4. Automotive Electronics: Supports hot swapping of high-voltage batteries in electric vehicles, enhancing convenience and safety.

Detailed and Complete Alternative Models

1. LTC4226: Hot Swap Controller with I²C-Compatible Monitoring
2. TPS24720: Precision Adjustable Current-Limited Power Distribution Switch
3. MAX5941: Quad High-Voltage Hot Swap Controllers
4. ADM1175: Hot Swap Controller with Integrated Power Monitor

These alternative models offer similar functionality and can be considered based on specific requirements and compatibility with the system.

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