LTC1155IS8#PBF

LTC1155 is a 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. It is used in application such as 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 etc.

• Short-circuit protection
• Wide power supply range is 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
• Drain sense input current is ±0.1µA maximum
• Operating temperature is -40°C to 85°C
• Package style is 8-lead plastic narrow SO

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party