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LT1161 Datasheet

LT1161 Datasheet

Quad Protected High-Side MOSFET Driver
Part No.: LT1161
Page: 12 Pages
Size: 157 KB
Manufacturer: Linear Technology
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Views: 1
Update Time: 2023-11-23 10:31:50
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LT1161 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
LT1161CN#PBF Tube 18   1 20 0°C ~ 70°C 20-Lead PDIP  
LT1161CN#TRPBF Reel     1 20 0°C ~ 70°C 20-Lead PDIP  
LT1161CN#TRMPBF Reel     1 20 0°C ~ 70°C 20-Lead PDIP  
LT1161IN#PBF Tube 18   1 20 -40°C ~ 85°C 20-Lead PDIP  
LT1161IN#TRPBF Reel     1 20 -40°C ~ 85°C 20-Lead PDIP  
LT1161IN#TRMPBF Reel     1 20 -40°C ~ 85°C 20-Lead PDIP  
LT1161CSW#PBF Tube 38   1 20   20-Lead SOIC  
LT1161CSW#TRPBF Reel 1000   1 20   20-Lead SOIC  
LT1161CSW#TRMPBF Reel 500   1 20   20-Lead SOIC  
LT1161ISW#PBF Tube 38   1 20   20-Lead SOIC  
LT1161ISW#TRPBF Reel 1000   1 20   20-Lead SOIC  
LT1161ISW#TRMPBF Reel 500   1 20   20-Lead SOIC  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

LT1161 Datasheet(PDF)

LT1161 Datasheet(Picture)

LT1161 Features

  • 8V to 48V Power Supply Range
  • Protected from -15V to 60V Supply Transients
  • Fully Enhances N-Channel MOSFET Switches
  • Individual Short-Circuit Protection
  • Individual Automatic Restart Timers
  • Programmable Current Limit, Delay Time, and Auto-Restart Period
  • Voltage-Limited Gate Drive
  • Defaults to OFF State with Open Input
  • Flowthrough Input to Output Pinout
  • Available in 20-Lead DIP or SOL Package

LT1161 Applications

  • Industrial Control
  • Avionics Systems
  • Automotive Switches
  • Stepper Motor and DC Motor Control
  • Electronic Circuit Breaker

LT1161 Description

The LT1161 is a quad high-side gate driver allowing the use of low cost N-channel power MOSFETs for high-side switching applications. It has four independent switch channels, each containing a completely self-contained charge pump to fully enhance an N-channel MOSFET switch with no external components.

Also included in each switch channel is a drain sense comparator that is used to sense switch current. When preset current level is exceeded, the switch is turned off. The switch remains off for a period of time set by an external timing capacitor and then automatically attempts to restart. If the fault is still present, this cycle repeats until the fault is removed, thus protecting the MOSFET.

The LT1161 has been specifically designed for harsh operating environments such as industrial, avionics, and automotive applications where poor supply regulation and/or transients may be present. The device will not sustain damage from supply voltages of –15V to 60V.

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