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max705esa-hxy

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HXY MOSFET Supervisor and Reset ICs, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Contents

README

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MAX705ESA-HXY

HXY MOSFET · Supervisor and Reset ICs · SOP-8

MAX705ESA-HXY from HXY MOSFET, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 !MR input Active-low Manual Reset input. Internally pulled up to VCC through ~20kΩ (10kΩ min / 40kΩ max). Driving !MR low for at least tMR (150ns at 4.5V<VCC<5.5V) forces !RESET low; !RESET remains asserted for tRS (typ 200ms) after !MR is released. Input thresholds: VIH ≥ 2.0V, VIL ≤ 0.8V at VCC = 5V.
2 VCC power_in Supply voltage input. For MAX705, operating range is 5.0V-5.5V; reset threshold VRT = 4.65V (typ, 4.50V min / 4.75V max). Typical supply current ICC = 75µA.
3 GND power_in Device ground reference. Connect to system 0V.
4 PFI input Power-Fail Comparator inverting Input. Compared internally against a 1.25V reference (1.20V min / 1.30V max). Input current ±25nA max. When PFI falls below 1.25V, !PFO is driven low. Tie to GND or VCC when not used.
5 !PFO output Active-low Power-Fail Comparator Output. Goes low when PFI < 1.25V. Push-pull: VOH ≥ VCC−1.5V at ISOURCE = 800µA, VOL ≤ 0.4V at ISINK = 3.2mA (4.5V<VCC<5.5V).
6 WDI input Watchdog Input. Must be toggled within the tWD window (1.0s min / 1.6s typ / 2.25s max) or !WDO asserts low. Minimum pulse width tWP = 50ns (4.5V<VCC<5.5V). VIH ≥ 3.5V, VIL ≤ 0.8V at VCC = 5V. Leave floating to disable the watchdog function.
7 !RESET output Active-low Reset Output. Asserted low whenever VCC falls below VRT (4.65V typ for MAX705) or !MR is pulled low; remains low for tRS ≈ 200ms after VCC/!MR returns valid. Push-pull: VOH ≥ VCC−1.5V at ISOURCE = 800µA, VOL ≤ 0.4V at ISINK = 3.2mA (4.5V<VCC<5.5V).
8 !WDO output Active-low Watchdog Output. Goes low when WDI is not toggled within tWD (typ 1.6s). Push-pull: VOH ≥ VCC−1.5V at ISOURCE = 800µA, VOL ≤ 0.4V at ISINK = 1.2mA (4.5V<VCC<5.5V).

Key specifications

Parameter Value
Manufacturer HXY MOSFET
Package SOP-8
Category PMIC
Pins 8

Ordering variants

  • MAX705ESA-HXY705CSA
  • MAX705ESA-HXY
  • MAX705ESA-HXY705CPA
  • MAX705ESA-HXY705EPA
  • MAX705ESA-HXY705C/D

CAD (KiCad official)

  • Symbol: MAX705ESA-HXY
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: HXY MOSFET datasheet (None pp, sha256 519b55ef659b3c93, retrieved 2026-08-17, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF

Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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