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MIC2786 and MIC2787 Pushbutton Reset IC


Micrel's MIC2786 and MIC2787 are low-current, ultra-small, pushbutton supervisor reset ICs with an integrated supply voltage monitor


Micrel's MIC2786 and MIC2787 Push Button Reset ICMicrel'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.

Features
  • 1.6 V to 5.5 V operating voltage
  • 7.4 µA supply current when /MR0, /MR1 not asserted
  • 1.66 V to 4.63 V preset voltage threshold option
  • 2.5% voltage threshold accuracy over temperature
  • Asserting /MR0 and /MR1 for the setup delay time asserts reset output for the reset timeout delay
  • Programmable delay (PDY) input selects 2 s, 4 s, 6 s setup delay
  • Factory-programmed 140 ms or 240 ms minimum reset timeout delay
  • Integrated /MR0, /MR1 pull-up resistors (MIC2786)
  • Dual reset outputs
    • Open-drain, active-low reset output (/RST)
    • Push-pull, active-high reset output (RSTP)
  • -40°C to +85°C ambient operating temperature range

Digi-Key P/N Manufacturer P/N Description
576-4005-1-ND MIC2786-XAYMT TR IC DUAL PUSH BUTTON RESET 8MLF Datasheet
576-4006-1-ND MIC2787-XDYMT TR IC DUAL PUSH BUTTON RESET 8MLF
Available in Tape & Reel (-2-ND), Cut Tape (-1-ND), and custom Digi-Reel® (-6-ND)