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LTC1155 Datasheet

LTC1155 Datasheet

Dual High Side Micropower MOSFET Driver
Part No.: LTC1155
Page: 20 Pages
Size: 2175 KB
Manufacturer: Linear Technology
Logo:
Views: 2
Update Time: 2023-11-22 10:47:46
DataSheet: Download

LTC1155 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
LTC1155CN8#PBF Tube 50   1 8 0°C ~ 70°C 8-Lead PDIP  
LTC1155CN8#TRPBF Reel     1 8 0°C ~ 70°C 8-Lead PDIP  
LTC1155CN8#TRMPBF Reel     1 8 0°C ~ 70°C 8-Lead PDIP  
LTC1155IN8#PBF Tube 50   1 8 -40°C ~ 85°C 8-Lead PDIP  
LTC1155IN8#TRPBF Reel     1 8 -40°C ~ 85°C 8-Lead PDIP  
LTC1155IN8#TRMPBF Reel     1 8 -40°C ~ 85°C 8-Lead PDIP  
LTC1155CS8#PBF Tube 100 1155 1 8 0°C ~ 70°C 8-Lead Plastic SO  
LTC1155CS8#TRPBF Reel 2500 1155 1 8 0°C ~ 70°C 8-Lead Plastic SO  
LTC1155CS8#TRMPBF Reel 500 1155 1 8 0°C ~ 70°C 8-Lead Plastic SO  
LTC1155IS8#PBF Tube 100 1155I 1 8 -40°C ~ 85°C 8-Lead Plastic SO  
LTC1155IS8#TRPBF Reel 2500 1155I 1 8 -40°C ~ 85°C 8-Lead Plastic SO  
LTC1155IS8#TRMPBF Reel 500 1155I 1 8 -40°C ~ 85°C 8-Lead Plastic SO  
LTC1155CJ8#PBF Tube     1 8 0°C ~ 70°C 8-Lead CERDIP  
LTC1155CJ8#TRPBF Reel     1 8 0°C ~ 70°C 8-Lead CERDIP  
LTC1155CJ8#TRMPBF Reel     1 8 0°C ~ 70°C 8-Lead CERDIP  
LTC1155MJ8#PBF Tube     1 8 -55°C ~ 125°C 8-Lead CERDIP  
LTC1155MJ8#TRPBF Reel     1 8 -55°C ~ 125°C 8-Lead CERDIP  
LTC1155MJ8#TRMPBF Reel     1 8 -55°C ~ 125°C 8-Lead CERDIP  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

LTC1155 Datasheet(PDF)

LTC1155 Datasheet(Picture)

LTC1155 Features

  • Fully Enhances N-Channel Power MOSFETs
  • 8μA Standby Current
  • 85μA ON Current
  • Short-Circuit Protection
  • Wide Power Supply Range: 4.5V to 18V
  • Controlled Switching ON and OFF Times
  • No External Charge Pump Components
  • Replaces P-Channel High Side MOSFETs
  • Compatible with Standard Logic Families
  • Available in 8-Pin SO Package

LTC1155 Applications

  • Laptop Power Bus Switching
  • SCSI Termination Power Switching
  • Cellular Phone Power Management
  • P-Channel Switch Replacement
  • Relay and Solenoid Drivers
  • Low Frequency Half H-Bridge
  • Motor Speed and Torque Control

LTC1155 Description

The LTC1155 dual high side gate driver allows using low cost N-channel FETs for high side switching applications. An internal charge pump boosts the gate above the positive rail, fully enhancing an N-channel MOSFET with no external components. Micropower operation, with 8μA standby current and 85μA operating current, allows use in virtually all systems with maximum efficiency.

Included on-chip is overcurrent sensing to provide automatic shutdown in case of short circuits. A time delay can be added in series with the current sense to prevent false triggering on high in-rush loads such as capacitors and incandescent lamps.

The LTC1155 operates off of a 4.5V to 18V supply input and safely drives the gates of virtually all FETs. The LTC1155 is well suited for low voltage (battery-powered) applications, particularly where micropower “sleep” operation is required.

The LTC1155 is available in both 8-pin PDIP and 8-pin SO packages.

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