General Description

The MIC2776 is a power supply supervisor which provides under-voltage monitoring and power-on reset generation in a compact 5-pin SOT package. Features include an adjustable under-voltage detector, a delay-generator, a manual reset input, and a choice of active-high, active-low, or open-drain active-low reset output. The user-adjustable monitoring input is compared against a 300mV reference. This low reference voltage allows monitoring voltages lower than those supported by previous supervisor ICs.

特性 Features

? User-adjustable input can monitor supplies as low as 0.3V

? ±1.5 threshold accuracy

? Separate VDD input

? Generates power-on reset pulse (140ms min.)

? Manual reset input

? Choice of active-high, active-low or open-drain active-low reset output

? Inputs can be pulled above VDD (7V abs. max.)

? Open-drain output can be pulled above VDD (7V abs. max.)

? Ultra-low supply current, 3.0μA typical

? Rejects brief input transients

? IttyBitty? SOT-23-5 package

Applications

? Monitoring processor, ASIC, or FPGA core voltage

? Computer systems

? PDAs/Hand-held PCs

? Embedded controllers

? Telecommunications systems

? Power supplies

? Wireless / cellular systems

? Networking hardware