LTC1255 - Dual 24V High-Side MOSFET Driver
Datasheet 
DocumentationDatasheet
Application Note
Reliability Data
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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.N-8,SO-8
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) |
Price (1k)* |
|---|---|---|---|---|---|
| LTC1255CN8#PBF | PDIP | 8 | C | $3.50 | $2.90 |
| LTC1255CS8#PBF | SO | 8 | C | $3.75 | $3.05 |
| LTC1255CS8#TRPBF | SO | 8 | C | $3.11 | |
| LTC1255IN8#PBF | PDIP | 8 | I | $4.55 | $3.70 |
| LTC1255IS8#PBF | SO | 8 | I | $4.90 | $4.00 |
| LTC1255IS8#TRPBF | SO | 8 | I | $4.06 | |
| LTC1255CN8 | PDIP | 8 | C | $7.00 | $5.80 |
| LTC1255CS8 | SO | 8 | C | $7.50 | $6.10 |
| LTC1255CS8#TR | SO | 8 | C | $6.22 | |
| LTC1255IN8 | PDIP | 8 | I | $9.10 | $7.40 |
| LTC1255IS8 | SO | 8 | I | $9.80 | $8.00 |
| LTC1255IS8#TR | SO | 8 | I | $8.12 |
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.