Download the MAX5949B datasheet PDF.
This datasheet also covers the MAX5949A variant, as both devices belong to the same -48v hot-swap controllers family and are provided as variant models within a single manufacturer datasheet.
General Description
The MAX5949A/MAX5949B are hot-swap controllers that allow a circuit card to be safely hot plugged into a live backplane.
The MAX5949A/MAX5949B operate from -20V to -80V and are well-suited for -48V power systems.
Key Features
o Allow Safe Board Insertion and Removal from a Live -48V Backplane
o Pin and Function Compatible with LT4250L (MAX5949A)
o Pin Compatible with LT1640L (MAX5949A)
o Pin and Function Compatible with LT4250H (MAX5949B)
o Pin Compatible with LT1640H (MAX5949B)
o Circuit-Breaker Immunity to Input Voltage Steps and Current Spikes
o Withstand -100V Input Transients with No External Components
o Programmable Inrush and Short-Circuit Current Limits
o Operate from -20V to -80V
o Programmable Overvoltage.
Full PDF Text Transcription for MAX5949B (Reference)
Note: Below is a high-fidelity text extraction (approx. 800 characters) for
MAX5949B. For precise diagrams, and layout, please refer to the original PDF.
19-3494; Rev 1; 8/11 MAX5949A/MAX5949B -48V Hot-Swap Controllers with External RSENSE General Description The MAX5949A/MAX5949B are hot-swap controllers that allow a circ...
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ption The MAX5949A/MAX5949B are hot-swap controllers that allow a circuit card to be safely hot plugged into a live backplane. The MAX5949A/MAX5949B operate from -20V to -80V and are well-suited for -48V power systems. These devices are pin and function compatible with the LT4250 and pin compatible with the LT1640. The MAX5949A/MAX5949B provide a controlled turn-on to circuit cards preventing glitches on the power-supply rail and damage to board connectors and components. The MAX5949A/MAX5949B provide undervoltage, overvoltage, and overcurrent protection. These devices ensure the input voltage is stable and within toleranc
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MAX5949B Datasheet
