Allicdata Part #: | MAX5921FESA+-ND |
Manufacturer Part#: |
MAX5921FESA+ |
Price: | $ 4.31 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Maxim Integrated |
Short Description: | IC HOT-SWAP CTRLR -48V 8-SOIC |
More Detail: | Hot Swap Controller 1 Channel -48V 8-SOIC |
DataSheet: | MAX5921FESA+ Datasheet/PDF |
Quantity: | 315 |
Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
1 +: | $ 3.91230 |
10 +: | $ 3.71700 |
25 +: | $ 2.70900 |
50 +: | $ 2.57355 |
100 +: | $ 1.81988 |
250 +: | $ 1.79124 |
Series: | -- |
Packaging: | Tube |
Lead Free Status / RoHS Status: | -- |
Part Status: | Active |
Moisture Sensitivity Level (MSL): | -- |
Type: | Hot Swap Controller |
Number of Channels: | 1 |
Internal Switch(s): | No |
Applications: | -48V |
Features: | Auto Retry, Fault Timeout, Thermal Limit |
Programmable Features: | Circuit Breaker, Current Limit, OVP, UVLO |
Voltage - Supply: | -80 V ~ -20 V |
Current - Output (Max): | -- |
Operating Temperature: | -40°C ~ 85°C |
Current - Supply: | 700µA |
Mounting Type: | Surface Mount |
Package / Case: | 8-SOIC (0.154", 3.90mm Width) |
Supplier Device Package: | 8-SOIC |
Feature Pins: | OV, PWRGD, UV |
Base Part Number: | MAX5921 |
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Introduction
MAX5921FESA+ is a Hot Swap Controller that offers management of power supplies and distribution in industrial, automotive and consumer applications. The device offers smart power-up sequencing, over-current protection, and constant voltage and current limiting features. It is designed to protect circuits and systems by safely turning on and off a load in applications with tight power budgets.Application Field
The MAX5921FESA+ Hot Swap Controller is well-suited for automotive, consumer, and industrial applications. It is able to handle up to +25V from a single battery source and can support loads up to 10A at an operating temperature of –40°C to +125°C. Its integrated logic-level switches ensure quick, reliable switching for low-current applications. The device\'s built-in protection also helps to eliminate brownout and over-voltage conditions within the host system.The MAX5921FESA+ can connect to power supplies, such as buck converters and advanced point-of-load supplies, which are ideal for a wide range of automotive, industrial, and consumer applications. It is also used in applications such as motor controllers, heaters, LED drivers, LED lighting systems, line-powered automotive and transportation systems, LCD backlight controllers, smart cell phone and antenna systems, and IP-cameras.
Working Principle
The MAX5921FESA+ Hot Swap Controller employs an internal current sense amplifier and comparator circuit to constantly monitor and adjust the load current.When the power is turned on, the MAX5921FESA+ begins to ramp up the load current in a defined ramp rate. When it reaches the threshold, the internal FET switch is enabled and the device enters the main current limit mode. In this mode, the load current is continuously monitored and adjusted using current sense and comparator circuits.The MAX5921FESA+ also features a soft start mode to help reduce inrush current during startup and protect the system from high-current applications. When the load current reaches the soft start threshold, the device enters the soft start mode and adjusts the load current using an adjustable soft start ramp rate.In an over-temperature event, the MAX5921FESA+ automatically shuts off the load to protect the system. Additionally, it features inverse-current protection and over-voltage protection for increased safety.Conclusion
The MAX5921FESA+ Hot Swap Controller provides robust and reliable power management for a large number of applications. With its adjustable ramp rates, soft start, and over-voltage and over-temperature protection, it is an ideal solution for automotive, industrial, and consumer applications.The specific data is subject to PDF, and the above content is for reference
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