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Description:Hot Swap Controller and Digital Power Monitor with Convert Pin
Manufacturer:Analog Devices
Datasheet:PDF (693K).
Click here to download *)

The ADM1175 is an integrated hot swap controller and current sense amplifier that offers digital current and voltage monitoring via an on-chip, 12-bit analog-to-digital converter (ADC), communicated through an I2C interface. An internal current sense amplifier senses voltage across the sense resistor in the power path via the VCC pin and the SENSE pin. The ADM1175 limits the current through this resistor by controlling the gate voltage of an external N-channel FET in the power path, via the GATE pin. The sense voltage (and, therefore, the inrush current) is kept below a preset maximum. The ADM1175 protects the external FET by limiting the time that it spends with maximum current running through it. This current limit period is set by the choice of capacitor attached to the TIMER pin. Additionally, the device provides protection from overcurrent events that may occur once the hot swap event is complete. In the case of a short-circuit event, the current in the sense resistor exceeds an overcurrent trip threshold, and the FET is switched off immediately by pulling down the GATE pin.

Click here to download ADM1175-2ARMZ-R7 Datasheet
Click here to download ADM1175-2ARMZ-R7 Datasheet
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