LT1640LIS8#TRPBF

Programmable Features:	Circuit Breaker, Fault Timeout, OVP, UVLO
Base Part Number:	LT1640
Feature Pins:	DRAIN, /PWRGD, OV, UV
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Current - Supply:	1.3mA
Operating Temperature:	-40°C ~ 85°C
Current - Output (Max):	--
Voltage - Supply:	-80 V ~ -10 V
Series:	--
Features:	Auto Retry
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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Introduction

The LT1640LIS8#TRPBF is a Power Management Integrated Circuit (PMIC) Hot Swap Controller for enhanced hot swap and over-voltage/under-voltage protection of a system load. This PMIC device is used to reduce power consumption and increase hot swap design flexibility in a wide range of applications. The LT1640LIS8#TRPBF hot swap controller utilizes integrated power switches to provide high current handling and power savings in milliseconds. Additionally, it incorporates a hardwarevoltage monitor to detect the system voltag levels and a low power loss circuitry to detect voltage leakage that allows for troubleshooting of any potential short or overvoltage situations.

Application Field

The LT1640LIS8#TRPBF hot swap controller is designed to simplify hot swap designs, reduce power consumption, provide increased design flexibility, and improve voltage protection. It is ideal for low voltage hot swap applications such as:• Hot Swap of system boards in servers, high-end industrial and telecom systems.• Hot plugging of parallel attached storage devices, such as SCSI drives.• Hot Swap of DC/DC converters for telecommunication equipment.• Hot Swap of data acquisition boards• Hot Swap of low voltage system loads.• Hot Swap of memory modules.• Hot Swap of PCI cards.• Hot Swap of medical equipment such as X-Ray and CAT scan machines.• Hot Swap of battery packs

Working Principle

The LT1640LIS8#TRPBF hot swap controller is a highly integrated device that utilizes integrated power switches, voltage monitors, and low power loss circuitry to provide simplified designs and improved voltage protection. It functions by sensing the system voltage and then enabling an internal FET (Field-Effect Transistor) to supply the system load when the voltage rises to an acceptable level.The LT1640LIS8#TRPBF incorporates a voltage detector that monitors the system voltage of the system load. When the voltage drops below a programmed limit, the FET will shut off the power, preventing current from reaching the system load. The FET will then enable a low power loss circuitry to enable power when the voltage reaches an acceptable level. The low power loss circuitry also works to detect any potential over or undervoltage problems before they damage any system components. This enables troubleshooting of short and overvoltage situations, as well as improving system reliability.

Conclusion

The LT1640LIS8#TRPBF Power Management Integrated Circuit (PMIC) Hot Swap Controller provides an effective and reliable hot swap design platform for a variety of applications. It is designed to reduce power consumption and provide increased flexibility in the hot swap design. In addition, the LT1640LIS8#TRPBF provides improved voltage protection and a low power loss circuitry to detect and prevent leakage of power from any potential over or undervoltage situations.

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