LT1161CN#PBF

LT1161 is a quad high-side gate driver allowing the use of low cost N-channel power MOSFETs for high-side switching applications. It has four independent switch channels, each containing a completely self-contained charge pump to fully enhance an N-channel MOSFET switch with no external components. Also included in each switch channel is a drain sense comparator that is used to sense switch current. The switch remains off for a period of time set by an external timing capacitor and then automatically attempts to restart. If the fault is still present, this cycle repeats until the fault is removed, thus protecting the MOSFET. It has been specifically designed for harsh operating environments such as industrial, avionics, and automotive applications where poor supply regulation and/or transients may be present. Typical applications are industrial control, avionics systems, automotive switches, stepper motor and DC motor control, electronic circuit breaker.

• 8V to 48V power supply range, 3 to 6.5mA supply current (all channels OFF)
• Protected from –15V to 60V supply transients
• When a preset current level is exceeded, the switch is turned off
• Individual automatic restart timers, individual short-circuit protection
• Programmable current limit, delay time and auto-restart period
• Voltage-limited gate drive
• Defaults to OFF state with open input
• Flowthrough input to output pinout
• 20-lead plastic DIP package
• Operating temperature range from 0°C to 70°C

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