MAX5939EESA+T

Programmable Features:	Circuit Breaker, Current Limit, OVP, UVLO
Base Part Number:	MAX5939
Feature Pins:	OV, /PWRGD, UV
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Current - Supply:	700µA
Operating Temperature:	-40°C ~ 85°C
Current - Output (Max):	--
Voltage - Supply:	-80 V ~ -20 V
Series:	--
Features:	Fault Timeout, Latched Fault, Thermal Limit
Applications:	-48V
Internal Switch(s):	No
Number of Channels:	1
Type:	Hot Swap Controller
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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MAX5939EESA+T Application Field and Working Principle

Introduction of PMIC - Hot Swap Controllers

PMIC (Power Management Integrated Circuit) hot swap controllers are a type of power management integrated circuit that regulates current and voltage. It helps reduce system complexity and increase reliability by providing hot swappable transient suppression, inrush current control, overvoltage and undervoltage protection, and hot swap detect. This type of solution prevents unexpected surges from overpowering fragile circuitry and burning out system components.

Features of MAX5939EESA+T

The MAX5939EESA+T hot swap controller is designed for applications requiring device under-voltage and over-temperature protection. The MAX5939EESA+T hot swap controller is equipped with a Vernier Control Loop (VCL) circuit that allows precise control of the output voltage during low-load conditions. This hot swap controller is designed to improve system reliability while maintaining high efficiency by allowing precise circuit modifications and precise control of the current. The MAX5939EESA+T hot swap controller detects open circuits caused by over-temperature, open-load and short-circuit conditions prior to powering up the device.

Application Field of MAX5939EESA+T

The MAX5939EESA+T hot swap controller is suitable for a wide range of applications that require precise control of current and voltage, such as low power computing, automotive power, and wireless applications. The MAX5939EESA+T hot swap controller is also suitable for applications requiring a fast response, as it can detect and suppress overvoltage, undervoltage, and over-temperature conditions with minimal delay.

Working Principle of MAX5939EESA+T

The MAX5939EESA+T hot swap controller works by continuously monitoring the input voltage. When a voltage level higher than the preset threshold is detected, the hot swap controller begins to regulate the current flow and the output voltage to ensure it remains within a safe operating range.In addition, the MAX5939EESA+T hot swap controller employs a Vernier Control Loop (VCL) circuit to ensure precise control of current. The VCL circuit is composed of a comparator and an adjustable hysteretic window that controls the output voltage. This adjustable hysteretic window allows the designer to control the rate of current change and the peak current limit. The MAX5939EESA+T hot swap controller also features over-temperature protection. When the temperature rises above a preset threshold the device will shut down and stop supplying power in order to protect the system.

Conclusion

The MAX5939EESA+T hot swap controller is an ideal solution for applications requiring precise control of current and voltage, as well as over-temperature protection. It is suitable for a wide range of applications, and its Vernier Control Loop (VCL) circuit allows precise control of the output voltage during low-load conditions. The MAX5939EESA+T hot swap controller is a reliable and efficient solution for protecting against unexpected surges, over-voltage, under-voltage, and over-temperature conditions.

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