MAX5977AETP+T

Series:	VariableSpeed/BiLevel™
Packaging:	Tape & Reel (TR)
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:	General Purpose
Features:	Auto Retry
Programmable Features:	Circuit Breaker, OVP, UVLO
Voltage - Supply:	2.7 V ~ 16 V
Current - Output (Max):	--
Operating Temperature:	-40°C ~ 85°C
Current - Supply:	734µA
Mounting Type:	Surface Mount
Package / Case:	20-WFQFN Exposed Pad
Supplier Device Package:	20-TQFN (4x4)
Feature Pins:	BIAS, CAL, CALSENSE, CSOUT, /FAULT, FCOMP, OV, PG, PWR, REG, SCOMP, SOURCE, UV
Base Part Number:	MAX5977

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MAX5977AETP+T Power management integrated circuit - Hot Swap Controllers

Power management integrated circuits (PMIC) are devices used to manage the amount of power used by devices such as CPU’s in a computer system. Hot Swap Controllers (HSC) are one PMIC group that is designed to manage the power needs of devices that are being swapped out in a process known as hot swapping. The MAX5977AETP+T is a Hot Swap Controller manufactured by Maxim Integrated Products. In this article we will discuss the application fields and working principle of the MAX5977AETP+T.The MAX5977AETP+T is an industrial grade Hot Swap Controller in an 8-pin thermally improved package. It is designed to manage the power needs of devices that are being swapped out without disruption to the total system. The device is a two-output controller that can heat each output independently, making it suitable for controlling hot-swapping of two different types of devices. It also has a special feature called the "Safe Start" protocol that configures each output\'s current limit before its respective power supply is enabled. This allows the output to be powered slowly, reducing in-rush currents and helping to protect other components in the system.The MAX5977AETP+T is designed for harsh industrial and automotive conditions and can operate from a wide temperature range of -40°C to 125°C. It integrates a pair of low RDS(ON) n-channel MOSFETs for each channel and offers a high current threshold capability up to 15A. The device also provides circuit protection, including undervoltage lockout, overtemperature protection, short-circuit protection, and overcurrent protection.The main application fields of the MAX5977AETP+T are for managing power needs for military, aerospace, and automotive systems, as well as embedded and industrial applications. Its low profile and wide temperature range make it suitable for harsh environments, and its high current threshold allows it to be used to hot-swap and power high-power components.The working principle of the MAX5977AETP+T is quite simple. The device is connected to the power supply and a load is attached to each output. When the device is powered, the MAX operations ensure that each output is safe to turn on. Once the outputs are on, the device monitors the power supply and load current to ensure that the current is below the rated current threshold. The device will automatically shut off if either of these conditions are not met.In conclusion, the MAX5977AETP+T is an industrial grade Hot Swap Controller designed for harsh conditions. It is designed to manage the power needs of devices that are being swapped out, providing circuit protection and a safe start protocol. It is suitable for embedded, military, aerospace, automotive, and industrial applications. The device\'s working principle is relatively straightforward, as it monitors both the supply and load conditions to ensure safe operation of the loads and shutdown if any of the current limits are exceeded.

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