LTC1155
LTC1155
PRODUCTIONDual High Side Micropower MOSFET Driver
- Part Models
- 6
- 1ku List Price
- Starting From $4.91
Viewing:
Overview
- 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
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.
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
Documentation
Data Sheet 1
Application Note 3
Design 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 |
|---|---|---|---|
| LTC1155CN8#PBF | 8-Lead PDIP (Narrow 0.3 Inch) | ||
| LTC1155CS8#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1155CS8#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1155IN8#PBF | 8-Lead PDIP (Narrow 0.3 Inch) | ||
| LTC1155IS8#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1155IS8#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Oct 8, 2024 - 24_0234 Migrating Bottom Trace Code Marking to Top Side Laser Marking for PDIP Package |
||
| LTC1155CN8#PBF | PRODUCTION | |
| LTC1155IN8#PBF | PRODUCTION | |
|
Oct 11, 2022 - 22_0241 Epoxy Change from Henkel 8290 to 8290A for PDIP Package |
||
| LTC1155CN8#PBF | PRODUCTION | |
| LTC1155IN8#PBF | PRODUCTION | |
|
Aug 6, 2022 - 22_0172 Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG] |
||
| LTC1155CN8#PBF | PRODUCTION | |
| LTC1155IN8#PBF | PRODUCTION | |
|
Dec 14, 2023 - 22_0255 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2) |
||
| LTC1155CS8#PBF | PRODUCTION | |
| LTC1155CS8#TRPBF | PRODUCTION | |
| LTC1155IS8#PBF | PRODUCTION | |
| LTC1155IS8#TRPBF | PRODUCTION | |
|
Jun 16, 2021 - 21_0026 Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM |
||
| LTC1155CS8#PBF | PRODUCTION | |
| LTC1155CS8#TRPBF | PRODUCTION | |
| LTC1155IS8#PBF | PRODUCTION | |
| LTC1155IS8#TRPBF | 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/SoftwareTools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LTC1155
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.
Latest Discussions
No discussions on LTC1155 yet. Have something to say?
Start a Discussion on EngineerZone®