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LT1640L - Negative Voltage Hot Swap Controller

Download the LT1640L datasheet PDF. This datasheet also covers the LT1 variant, as both devices belong to the same negative voltage hot swap controller family and are provided as variant models within a single manufacturer datasheet.

General Description

The LT®1640L/LT1640H is an 8-pin, negative voltage Hot SwapTM controller that allows a board to be safely inserted and removed from a live backplane.

Inrush current is limited to a programmable value by controlling the gate voltage of an external N-channel pass transistor.

Key Features

  • s s s s s s s.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LT1-640.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Linear Technology (now Analog Devices)

Part Number Description
LT1640H Negative Voltage Hot Swap Controller
LT1641 Positive High Voltage Hot Swap Controller
LT1641-1 Positive High Voltage Hot Swap Controllers
LT1641-2 Positive High Voltage Hot Swap Controllers
LT1610 Constant-Current/ Constant-Voltage 1.4MHz Step-Up DC/DC Converter

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
LT1640L/LT1640H Negative Voltage Hot Swap Controller FEATURES s s s s s s s DESCRIPTION The LT®1640L/LT1640H is an 8-pin, negative voltage Hot SwapTM controller that allows a board to be safely inserted and removed from a live backplane. Inrush current is limited to a programmable value by controlling the gate voltage of an external N-channel pass transistor. The pass transistor is turned off if the input voltage is less than the programmable undervoltage threshold or greater than the overvoltage threshold. A programmable electronic circuit breaker protects the system against shorts. The PWRGD (LTC1640L) or PWRGD (LTC1640H) signal can be used to directly enable a power module. The LT1640L is designed for modules with a low enable input and the LT1640H for modules with a high enable input.