LT1161
LT1161
PRODUCTIONQuad Protected High-Side MOSFET Driver
- Part Models
- 6
- 1ku List Price
- Starting From $5.99
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Overview
- 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
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.
Applications
- Industrial Control
- Avionics Systems
- Automotive Switches
- Stepper Motor and DC Motor Control
- Electronic Circuit Breaker
Documentation
Data Sheet 1
Application Note 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 |
|---|---|---|---|
| LT1161CN#PBF | 20-Lead PDIP (Narrow 0.3 Inch) | ||
| LT1161CSW#PBF | 20-Lead SOIC (Wide 0.3 Inch) | ||
| LT1161CSW#TRPBF | 20-Lead SOIC (Wide 0.3 Inch) | ||
| LT1161IN#PBF | 20-Lead PDIP (Narrow 0.3 Inch) | ||
| LT1161ISW#PBF | 20-Lead SOIC (Wide 0.3 Inch) | ||
| LT1161ISW#TRPBF | 20-Lead SOIC (Wide 0.3 Inch) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Mar 7, 2019 - 19_0046 Assembly Transfer of 18,20,24,28 Lead PDIP to Cirtek |
||
| LT1161CN#PBF | PRODUCTION | |
| LT1161IN#PBF | PRODUCTION | |
|
Aug 10, 2022 - 22_0176 Laser Top Mark Conversion for SOIC_W Packages Assembled in ADPG [PNG] and UTL |
||
| LT1161CSW#PBF | PRODUCTION | |
| LT1161CSW#TRPBF | PRODUCTION | |
| LT1161ISW#PBF | PRODUCTION | |
| LT1161ISW#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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LTspice 1
Models for the following parts are available in LTspice:
- LT1161
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.