 Micrel's MIC2786 and MIC2787 are low-current, ultra-small, pushbutton supervisor reset ICs with an integrated supply voltage monitor. The devices feature two manual reset inputs and two reset outputs. The reset outputs are asserted and held when the supply voltage decreases below the factory programmed threshold voltage. Reset will be asserted for the reset timeout delay once the supply voltage increases above the rising threshold voltage, or when both manual reset inputs are asserted low for longer than the setup delay time.
The MIC2786 features integrated pull-up resistors on the /MR0 and /MR1 inputs, while the MIC2787 requires external pull-up resistors. The PDY input pin selects between a 2 s, 4 s, or 6 s setup period. Factory-programmed reset timeout delays of 140 ms and 240 ms (minimum) are available. An active-low, open-drain reset output (/RST) and an active-high, push-pull reset output (RSTP) provide flexibility when interfacing to various microcontrollers, PMICs, or load switches.
The MIC2786 and MIC2787 consume a quiescent current of only 7.4 µA and are offered in a tiny, space saving 8-pin Thin MLF® (2 mm x 2 mm x 0.55 mm) package. |
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