LTC2953CDD-2#PBF

LTC®2953 is a push button on/off controller with voltage monitoring. This push button on/off controller that manages system power via a push button interface. An enable output toggles system power while an interrupt output provides debounced push button status. The interrupt output can be used in menu driven applications to request a system power down. It also features input and output power supply monitors. An uncommitted power fail comparator provides real time input monitor information, while a de-glitched under voltage lockout comparator gracefully initiates a system power down. The under voltage lockout comparator prevents the system from powering from a low power supply. The reset output remains low until the supply monitor input has been in compliance for 200ms. Typical applications are push button power path control, battery power supervisor, portable instrumentation, PDA, blade servers, desktop and notebook computers.

• Adjustable supply monitor input is compared against an accurate internal 0.5V reference
• Wide operating voltage range from 2.7V to 27V
• Push button control of system power, power fail comparator generates warning
• UVLO comparator gracefully latches power off
• Adjustable supply monitor with 200ms reset, adjustable power down timer
• Simple interface allows orderly system power up and power down
• ±1.5% threshold tolerances, ±10kV ESD HBM on active-low PB input
• Supply voltage range from 2.7 to 27V (steady state operation, TA=25°C)
• VIN supply current is 26μA (VIN=2.7V to 27V, TA=25°C)
• 12-lead plastic DFN package, 0°C to 70°C temperature rating

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