Switching Surge Stopper, 3.5V-60Vin, MSOP-12

LTC7860HMSE#PBF - Switching Surge Stopper, 3.5V-60Vin, MSOP-12

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Product Overview

The LTC7860HMSE#PBF is a high efficiency Surge Stopper protects loads from high voltage transients. High efficiency permits higher currents and smaller solution sizes. During an input overvoltage event, such as a load dump in vehicles, the LTC7860 controls the gate of an external MOSFET to act as a switching DC/DC regulator (PROTECTIVE PWM mode). This operation regulates the output voltage to a safe level, allowing the loads to operate through the input over-voltage event. During normal operation (SWITCHON mode), the LTC7860 turns on the external MOSFET continuously, passing the input voltage through to the output. An internal comparator limits the voltage across the current sense resistor and regulates the maximum output current to protect against overcurrent faults. An adjustable timer limits the time that the LTC7860 can spend in overvoltage or overcurrent regulation. When the timer expires, the external MOSFET is turned off until the LTC7860 restarts after a cool down period.
  • High efficiency VOUT clamp stops high voltage input surges
  • Switch-on mode 100% duty cycle for normal operation
  • Protective PWM mode for transients and faults adjustable output voltage clamp
  • Adjustable output overcurrent protection
  • Power inductor improves input EMI in normal operation
  • Programmable fault timer
  • Adjustable soft-start for input inrush current limiting
  • 4.5% Retry duty cycle during faults


Industrial, Communications & Networking, Automotive, Aerospace, Defence, Military, Power Management

Product Information

Power - Automotive, Industrial, Military, Telecom, Vehicle
MSL 1 - Unlimited
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