Analog Devices ADM1176-1ARMZ-R7

Hot Swap Controller 1-CH 16.5V N-Channel Positive Voltage 10-Pin MSOP T/R

ADM1176 Current Limit Fault Timeout Turn On Voltage ON TIMER PRODUCTION (Last Updated: 3weeks ago) hot swap controller 3mm 1.7mA 3.15V~16.5V 85C

IC, HOT SWAP CTRLR, 3.15V-16.5V, MSOP-10; Controller Applications:Central Office Equipment, Communication, PCs/Servers, Power Monitoring; Input Voltage:-; Supply Voltage Min:3.15V; Supply Voltage Max:16.5V; Controller IC Case Style:MSOP; No. of Pins:10Pins; Operating Temperature Min:-40°C; Operating Temperature Max:85°C; Product Range:ADM1176 Series; RoHS Phthalates Compliant:Yes; MSL:MSL 1 - Unlimited; SVHC:No SVHC (07-Jul-2017)

The ADM1176 is an integrated hot swap controller 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 ADM1176 limits the current through this resistor by control-ling 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 ADM1176 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. A 12-bit ADC can measure the current seen in the sense resistor, as well as the supply voltage on the VCC pin. An industry-standard I2C interface allows a controller to read current and voltage data from the ADC. Measurements can be initiated by an I2C command. Alternatively, the ADC can run continuously, and the user can read the latest conversion data whenever it is required. Up to 16 unique I2C addresses can be created, depending on the way the A0 and A1 pins are connected. The ADM1176 is packaged in a 10-lead MSOP. Applications Power monitoring/power budgeting Central office equipment Telecommunication and data communication equipment PCs/servers Data Sheet, Rev. B, 2/08