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Ray Publish 0.1.0 32ac9b7 8d ago

MAX6315US31D3+T

Maxim Integrated · Monitors & Reset Circuits · SOT-143-4

MAX6315US31D3+T from Maxim Integrated, in a SOT-143-4. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground reference pin for the device.
2 RESET output Active-low open-drain output that must be connected to an external pullup resistor; it can be pulled up to a voltage higher than VCC but less than 6V.
3 MR input Manual reset input where a logic-low asserts reset and keeps it asserted while low and for the reset timeout period after release; connect to VCC if not used.
4 VCC power_in Supply voltage input that is also the reset threshold monitor; the operating voltage range is 1.0V to 5.5V.

Key specifications

Parameter Value
Manufacturer Maxim Integrated
Package SOT-143-4
Category Power Management ICs
Pins 4

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Operating Voltage Range VCC 1 5.5 V TA = -40°C to +85°C 2
Reset Threshold tolerance VTH -1.8 1.8 % TA = +25°C 2
Reset Threshold tolerance VTH -2.5 2.5 % TA = -40°C to +85°C 2
Reset Threshold tolerance VTH -3.5 3.5 % TA = -40°C to +125°C 2
VCC Supply Current ICC 5 12 µA VCC = 5.5V, no load, -40°C to +85°C 2
VCC Supply Current ICC 15 µA VCC = 5.5V, no load, -40°C to +125°C 2
VCC Supply Current ICC 4 10 µA VCC = 3.6V, no load, -40°C to +85°C 2
VCC Supply Current ICC 12 µA VCC = 3.6V, no load, -40°C to +125°C 2
Reset Timeout Period (MAX6315US31D3-T) tRP 140 200 280 ms MAX6315US_ _D3-T, -40°C to +85°C 2
Reset Timeout Period (MAX6315US31D3-T) tRP 112 336 ms MAX6315US_ _D3-T, -40°C to +125°C 2
MR Pullup Resistance 32 63 100 kΩ 2
RESET Output Voltage Low VOL 0.4 V VCC > 4.25V, ISINK = 3.2mA 2
RESET Output Voltage Low VOL 0.3 V VCC > 2.5V, ISINK = 1.2mA 2
RESET Output Leakage Current 1 µA VCC > VTH, RESET deasserted 2
MR Minimum Input Pulse 1 µs 2
MR to Reset Delay 500 ns 2
MR Glitch Rejection 100 ns 2
Reset Threshold Tempco ΔVTH/°C 60 ppm/°C 2
VCC to Reset Delay 35 µs VCC falling at 1mV/µs 2
Nominal Reset Threshold (MAX6315US31D3-T) VTH 3.08 V Nominal VTH for MAX6315US31 5
VCC Absolute Maximum VCC -0.3 6 V 2
RESET Absolute Maximum -0.3 6 V 2
All Other Pins Absolute Maximum -0.3 V Maximum printed as (VCC + 0.3V) 2
Input Current (VCC) 20 mA 2
Output Current (RESET) 20 mA 2
Rate of Rise (VCC) 100 V/µs 2
Operating Temperature Range -40 125 °C 2
Storage Temperature Range -65 160 °C 2
Lead Temperature (soldering) 300 °C Soldering, 10s 2

CAD (KiCad official)

  • Symbol: MAX6315US31D3+T
  • Footprint: Package_TO_SOT_SMD:SOT-143
  • 3D model: SOT-143-4 (KiCad packages3D, STEP)
  • 3D model files: max6315us31d3-t-etched.step / max6315us31d3-t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); max6315us31d3-t.step / max6315us31d3-t.glb are the bare package body.

Provenance

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

  • Datasheet: Maxim Integrated datasheet (7 pp, sha256 158ca4940b263a92, retrieved 2026-10-30, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF