ADM1172
Info: : PRODUCTION
searchIcon
cartIcon

ADM1172

2.7 V to 16.5 V Hot Swap Controller with Power-Fail Comparator

Show More showmore-icon

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $2.23
Features
  • Controls supply rails from 2.7 V to 16.5 V
  • Allows protected board removal and insertion to a live backplane
  • External sense resistor provides adjustable analog current limit with circuit breaker
  • Peak fault current limited with fast response
  • Charge pumped gate drive for external N-FET switch
  • Power-fail comparator
  • Automatic retry or latch-off during current fault 
  • Undervoltage lockout  
  • 8-lead, TSOT package
Additional Details
show more Icon

The ADM1172 is a hot swap controller that safely enables a printed circuit board to be removed and inserted to a live backplane. This is achieved using an external N-channel power MOSFET with a current control loop that monitors the load current through a sense resistor. An internal charge pump is used to enhance the gate of the N-channel FET. When an overcurrent condition is detected, the gate voltage of the FET is reduced to limit the current flowing through the sense resistor. During an overcurrent condition, the TIMER pin capacitor determines the amount of time the FET remains at a current limiting mode of operation until it is shut down. The ON (ON-CLR) pin is the enable input for the device and can be used to monitor the input supply voltage. The ADM1172 operates with a supply voltage ranging from 2.7 V to 16.5 V.

The ADM1172 also features a power-fail comparator. The voltage on the PFI pin is compared with an internal 0.6 V reference, and the output of this comparator is presented on the PFO pin. This device is available in two options: the ADM1172-1 with automatic retry for overcurrent fault and the ADM1172-2 with latch-off for an overcurrent fault. Toggling the ON (ON-CLR) pin resets a latched fault. The ADM1172 is packaged in an 8-lead TSOT.

Applications

  • Hot swap board insertion: line cards, raid systems
  • Industrial high-side switches/circuit breakers
  • Electronic circuit breakers
Part Models 2
1ku List Price Starting From $2.23

close icon
Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
ADM1172-1AUJZ-RL7
  • HTML
  • HTML
ADM1172-2AUJZ-RL7
  • HTML
  • HTML

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Jan 26, 2010

- 10_0007

Halogen Free Material Change for TSOT Products

ADM1172-1AUJZ-RL7

PRODUCTION

ADM1172-2AUJZ-RL7

PRODUCTION

Nov 16, 2009

- 06_0157

Qualification of the 8" H6 Thin Film BiPolar Wafer Fab Process at Analog Devices, Limerick, Ireland

ADM1172-1AUJZ-RL7

PRODUCTION

ADM1172-2AUJZ-RL7

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Jan 26, 2010

- 10_0007

arrow down

Halogen Free Material Change for TSOT Products

ADM1172-1AUJZ-RL7

PRODUCTION

ADM1172-2AUJZ-RL7

PRODUCTION

Nov 16, 2009

- 06_0157

arrow down

Qualification of the 8" H6 Thin Film BiPolar Wafer Fab Process at Analog Devices, Limerick, Ireland

ADM1172-1AUJZ-RL7

PRODUCTION

ADM1172-2AUJZ-RL7

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Recently Viewed