LTC2953IDD-1#PBF

LINEAR TECHNOLOGY  LTC2953IDD-1#PBF  芯片, 控制器, 开/关, SMD, DFN-12

The is a 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. The LTC2953 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 adjustable supply monitor input is compared against an accurate internal 0.5V reference. The reset output remains low until the supply monitor input has been in compliance for 200ms.

.

14µA Low supply current

.

Power fail comparator generates warning

.

UVLO comparator gracefully latches power OFF

.

Adjustable power down timer

.

Adjustable supply monitor with 200ms reset

.

Low leakage EN output allows DC/DC converter control

.

Simple interface allows orderly system power up and power down

.

±1.5% Threshold Tolerances

.

±10kV ESD HBM on PB\ input

.

Green product and no Sb/Br