LTC1255 - Dual 24V High-Side MOSFET Driver
Features
- Fully Enhances N-Channel Power MOSFETs
- 12µA Standby Current
- Operates at Supply Voltages from 9V to 24V
- Short Circuit Protection
- Easily Protected Against Supply Transients
- Controlled Switching ON and OFF Times
- No External Charge Pump Components
- Compatible With Standard Logic Families
- Available in 8-Pin SOIC
Typical Application
Description
The LTC1255 dual high-side driver allows using low cost N-channel FETs for high-side industrial and automotive switching applications. An internal charge pump boosts the gate drive voltage above the positive rail, fully enhancing an N-channel MOS switch with no external components. Low power operation, with 12µA standby current, allows use in virtually all systems with maximum efficiency. Included on-chip is independent overcurrent sensing to provide automatic shutdown in case of short circuits. A time delay can be added to the current sense to prevent false triggering on high in-rush current loads. The LTC1255 operates from 9V to 24V supplies and is well suited for industrial and automotive applications. The LTC1255 is available in both an 8-pin DIP and an 8-pin SOIC.Packaging
CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.
For complete and up to date package information and drawings, please refer to our packaging page
| Part Number | Package | Code | Temp | Package Drawing |
RoHS |
|---|---|---|---|---|---|
| LTC1255CN8#PBF | N-8 | N | C | 05-08-1510 (N8) | Yes |
| LTC1255CS8#PBF | SO-8 | S8 | C | 05-08-1610 (S8) | Yes |
| LTC1255CS8#TRPBF | SO-8 | S8 | C | 05-08-1610 (S8) | Yes |
| LTC1255IN8#PBF | N-8 | N | I | 05-08-1510 (N8) | Yes |
| LTC1255IS8#PBF | SO-8 | S8 | I | 05-08-1610 (S8) | Yes |
| LTC1255IS8#TRPBF | SO-8 | S8 | I | 05-08-1610 (S8) | Yes |
Order Info
- Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
- Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
- Please refer to our general ordering information or the product datasheet for more details
Package Variations and Pricing
| Part Number | Package | Temp | Price (1-99) |
Price (1k)* |
RoHS | |
|---|---|---|---|---|---|---|
| LTC1255CN8#PBF | N-8 | C | $3.50 | $2.90 | Yes | |
| LTC1255CS8#PBF | SO-8 | C | $3.75 | $3.05 | Yes | |
| LTC1255CS8#TRPBF | SO-8 | C | $3.11 | Yes | ||
| LTC1255IN8#PBF | N-8 | I | $4.55 | $3.70 | Yes | |
| LTC1255IS8#PBF | SO-8 | I | $4.90 | $4.00 | Yes | |
| LTC1255IS8#TRPBF | SO-8 | I | $4.06 | Yes | ||
| Buy Now • Request Samples | ||||||
Demo Boards
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.Click here to view our complete list of demo boards
Applications
- Solenoid Drivers
- DC Motor Drivers
- Stepper Motor Drivers
- Lamp Drivers/Dimmers
- Relay Drivers
- Low Frequency H-Bridge
- P-Channel Switch Replacement
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Design Tools
LTspice
LTspice® software is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. Click here to download LTspice
Models for the following parts are available in LTspice:
LTC1255
Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.
