# MAX809MEUR+T

**Maxim Integrated** · Monitors & Reset Circuits · SOT-23

MAX809MEUR+T from Maxim Integrated, in a SOT-23. 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. |
| 2 | RESET | output | Push-pull active-low reset output that remains low while VCC is below the reset threshold and for at least 140ms after VCC rises above the reset threshold. |
| 3 | VCC | power_in | Supply voltage (+5V, +3.3V, +3.0V, or +2.5V) monitored by the supervisor; absolute maximum -0.3V to +6.0V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Maxim Integrated |
| Package | SOT-23 |
| Category | Power Management ICs |
| Pins | 3 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VCC Range (0°C to +70°C) | VCC | 1 |  | 5.5 | V | TA = 0°C to +70°C | 2 |
| VCC Range (EUR) | VCC | 1.2 |  | 5.5 | V | TA = -40°C to +105°C (MAX8_ _ _EUR) | 2 |
| Supply Current (SOT23), -40°C to +85°C | ICC |  | 24 | 60 | µA | TA = -40°C to +85°C, VCC < 5.5V, MAX8_ _L/M | 2 |
| Supply Current (SOT23), +85°C to +105°C | ICC |  |  | 100 | µA | TA = +85°C to +105°C, VCC < 5.5V, MAX8_ _L/M | 2 |
| Reset Threshold MAX8_ _M, +25°C | VTH | 4.31 | 4.38 | 4.45 | V | TA = +25°C | 2 |
| Reset Threshold MAX8_ _M, -40°C to +85°C | VTH | 4.25 |  | 4.5 | V | TA = -40°C to +85°C | 2 |
| Reset Threshold MAX8_ _M, -40°C to +125°C | VTH | 4.16 |  | 4.56 | V | TA = -40°C to +125°C | 2 |
| Reset Active Timeout Period, -40°C to +85°C |  | 140 | 240 | 560 | ms | TA = -40°C to +85°C | 3 |
| Reset Active Timeout Period, +85°C to +105°C |  | 100 |  | 840 | ms | TA = +85°C to +105°C | 3 |
| RESET Output Voltage Low, 3.2mA | VOL |  |  | 0.4 | V | VCC = VTH (min), ISINK = 3.2mA, MAX809J/L/M | 3 |
| RESET Output Voltage Low, 50µA | VOL |  |  | 0.3 | V | VCC > 1.0V, ISINK = 50µA | 3 |
| Reset Threshold Tempco |  |  | 30 |  | ppm/°C |  | 3 |
| VCC to Reset Delay |  |  | 20 |  | µs | VCC = VTH to (VTH - 100mV) | 3 |
| Terminal Voltage VCC | VCC | -0.3 |  | 6 | V | with respect to GND | 2 |
| Input Current, VCC |  |  |  | 20 | mA |  | 2 |
| Output Current, RESET |  |  |  | 20 | mA | RESET, RESET | 2 |
| Rate of Rise, VCC |  |  |  | 100 | V/µs |  | 2 |
| Operating Temperature Range, 3-Pin SOT23 |  | -40 |  | 105 | °C | 3-Pin SOT23 | 2 |
| Storage Temperature Range |  | -65 |  | 150 | °C |  | 2 |
| Lead Temperature |  |  |  | 300 | °C | soldering, 10s | 2 |
| Soldering Temperature |  |  |  | 260 | °C | reflow | 2 |

## CAD (KiCad official)

- Symbol: `MAX809MEUR+T`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `max809meur-t-etched.step` / `max809meur-t-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `max809meur-t.step` / `max809meur-t.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Maxim Integrated datasheet](https://www.analog.com/media/en/technical-documentation/data-sheets/max803-max810z.pdf) (8 pp, sha256 `10caf212e77acdb6`, retrieved 2026-10-31, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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](docs/max809meur-t-datasheet.pdf)