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APX809S-44SA-7
Public Made by Adomby adom
Diodes Incorporated Monitors & Reset Circuits, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownAPX809S-44SA-7
Diodes Incorporated · Monitors & Reset Circuits · SOT-23
APX809S-44SA-7 from Diodes Incorporated, 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 pin for the SOT23 (SA) package. |
| 2 | RESET | output | Active-low push-pull reset output (APX809S); asserted when VCC falls below the 4.38V typ threshold (-44) and held for 140-280ms (240ms typ) after VCC rises above it, valid down to VCC = 1V. |
| 3 | VCC | power_in | Operating voltage input, recommended 1.0V to 5.5V (absolute maximum -0.3 to 6.0V). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| 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 |
|---|---|---|---|---|---|---|---|
| Reset Threshold Voltage (-44) | VTH | 4.32 | 4.38 | 4.44 | V | APX809SXX-44, TA = +25°C | 4 |
| Supply Current | ICC | 7 | 16 | μA | VTH + 0.2V | 4 | |
| Reset Active Timeout Period | tDELAY | 140 | 240 | 280 | ms | APX809S-XX, VCC ≥ 1.02 x VTH | 4 |
| Output Voltage Low (APX809S) | VOL | 0.3 | V | VCC = VTH - 0.2V, ISINK = 1.2mA | 4 | ||
| Output Voltage Low (APX809S) | VOL | 0.4 | V | VCC = VTH - 0.2V, ISINK = 3.2mA | 4 | ||
| Supply Voltage | VCC | -0.3 | 6 | V | TA = +25°C | 3 | |
| RESET Voltage | VRESET | -0.3 | 6 | V | TA = +25°C | 3 | |
| Input Current | ICC | 20 | mA | TA = +25°C | 3 | ||
| Output Current | IO | 20 | mA | TA = +25°C | 3 | ||
| ESD HBM | ESD | 6000 | V | Human Body Model | 3 | ||
| ESD MM | ESD | 600 | V | Machine Model | 3 | ||
| Junction Temperature Range | TJ | -40 | 150 | °C | 3 | ||
| Storage Temperature Range | TSTG | -65 | 150 | C | 3 | ||
| Operating Ambient Temperature Range | TA | -40 | 125 | °C | 3 | ||
| Supply Voltage | VCC | 1 | 5.5 | V | 3 | ||
| RESET Output Voltage | VRESET | 0 | 5.5 | V | 3 | ||
| Thermal Resistance Junction-to-Ambient | θJA | 232 | °C/W | SOT23 | 3 | ||
| Thermal Resistance Junction-to-Case | θJC | 87 | °C/W | SOT23 | 3 | ||
| Reset Threshold Voltage Temperature Coefficient | ΔVTH/ΔT | 30 | ppm/°C | TA = -40 to +125°C | 4 | ||
| VCC Drop to Delay | tS | 20 | µs | VCC = VTH to (VTH - 100mV) | 4 |
CAD (KiCad official)
- Symbol:
APX809S-44SA-7 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
apx809s-44sa-7-etched.step/apx809s-44sa-7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);apx809s-44sa-7.step/apx809s-44sa-7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (10 pp, sha256
b644892b2c8d0948, retrieved 2026-10-22, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-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).