LTC1696IS6#TRMPBF

LTC1696IS6#TRMPBF is a standalone power supply overvoltage monitor and protection device designed to protect a power supply load in the event of an overvoltage fault. It monitors two adjustable output voltages. If an overvoltage condition is detected, the output drives either an external SCR crowbar or turns off external back-to-back N-channel MOSFETs, thereby, disconnecting the input voltage from the power supply. Pin 6 offers three functions. By connecting a capacitor to this pin, the internal glitch filter time delay can be programmed. Without the capacitor, the default time delay is determined by an internal capacitor. This pin also serves as a reset input to clear the internal latch after an overvoltage fault condition. By pulling it high, the OUT pin is activated if the FB1 and FB2 voltages remain below the trip threshold. Applications include telecommunication systems, computer systems, industrial control systems, notebook computers.

• Gate drive for SCR crowbar or external N-channel disconnect MOSFET
• Monitors two output voltages, senses output voltages from 0.8V to 24V
• Wide supply voltage range from 2.7V to 27V, multifunction TIMER/active-low RESET Pin
• Active supply current is 1.1mA typical at (FB1, FB2 > VFB, COUT = 1000pF)
• Standby supply current is 170µA typical at (FB1, FB2 < VFB)
• OUT rise time is 0.4µs typical at (FB1, FB2 > VFB, COUT = 1000pF)
• OUT short-circuit current is 80mA typical at (12V ≤ VCC ≤ 27V, FB1, FB2 > VFB, VOUT Shorted to GND)
• OUT propagation delay for FB1 is 7µs typical at (FB1 > VFB, FB2 < VFB, TIMER/RESET = open)
• Operating junction temperature range from -40°C to 125°C
• 6-lead plastic TSOT-23 package

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