ADM1170
PRODUCTION1.6 V to 16.5 V Hot Swap Controller
- Part Models
- 2
- 1ku List Price
- Starting From $3.27
Overview
- Allows Safe Board Insertion and
Removal from a Live Backplane - Supply Voltage Range from 2.7 V to 16.5V
- Adjustable Analog Current Limit
with Circuit Breaker - Fast Response Limits Peak Fault
Current Allows Safe Board
- Controls Supply Voltages from 1.6V to 16.5V
- Automatic Retry or Latch-Off On Current Fault
- Charge Pumped Gate Drive for External N-FET Switch
- True Soft Start Control of Initial Current Profile
- Undervoltage Lockout
- 8-pin TSOT Package
The ADM1170 is a Hot Swap controller that allows a board to be safely inserted and removed from a live backplane. This is achieved using a pass FET with a current control loop that monitors the input current using a sense resistor. An internal charge pump is used to enhance the gate of the external high side N-channel FET. When an over current condition is detected the gate voltage of the FET is reduced to limit the current flowing through the sense resistor. The ADM1170 operates with a supply voltage ranging from 2.7V to 16.5V. Using separate SENSE pins from VCC the ADM1170 allows for the hot swap of supplies ranging down to 1.6V. During an overcurrent condition the timer cap determines the amount of time the FET will remain in this condition. The ON (ON-CLR) pin is the enable input for the device and also acts as a latched fault reset for the ADM1170-2 model. The SS pin is used to control the inrush current profile by ramping up the current sense limit at a rate set by the SS capacitor. This device is available in two options: the ADM1170-1 will automatic retry for over-current fault and the ADM1170-2 will latch-off for an over-current fault. The ADM1170 is packaged in an 8-lead TSOT package
APPLICATIONS
- Hot Swap Board Insertion – Line Cards, Raid Systems
- Electronic Circuit Breaker
- Industrial High Side Switch/Circuit Breaker
Documentation
Data Sheet 1
Evaluation Design File 1
Circuit Note 1
Product Selector Card 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| ADM1170-1AUJZ-RL7 | 8-Lead TSOT | ||
| ADM1170-2AUJZ-RL7 | 8-Lead TSOT |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jan 26, 2010 - 10_0007 Halogen Free Material Change for TSOT Products |
||
| ADM1170-1AUJZ-RL7 | PRODUCTION | |
| ADM1170-2AUJZ-RL7 | PRODUCTION | |
|
Nov 16, 2009 - 06_0157 Qualification of the 8" H6 Thin Film BiPolar Wafer Fab Process at Analog Devices, Limerick, Ireland |
||
| ADM1170-1AUJZ-RL7 | PRODUCTION | |
| ADM1170-2AUJZ-RL7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareEvaluation Kits
ADM1170 Evaluation Board
Resources
Reference Designs
Robust, Multivoltage, High Efficiency, 25 W Universal Power Supply Module with 6 V to 14 V Input