component
A3290KLHLX-T
Public Made by Adomby adom
Allegro MicroSystems, LLC Magnetic Sensors, SOT-23W. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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A3290KLHLX-T
Allegro MicroSystems, LLC · Magnetic Sensors · SOT-23W
A3290KLHLX-T from Allegro MicroSystems, LLC, in a SOT-23W. 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 | VCC | power_in | Power supply input, operating range 3.0 to 24 V (absolute maximum 26.5 V, reverse battery -30 V); an external 0.1 µF bypass capacitor to ground is strongly recommended. |
| 2 | OUT | output | Short-circuit protected open-drain output that sinks up to 25 mA continuous (current limit 30 to 60 mA), with off voltage up to 26 V maximum. |
| 3 | GND | power_in | Ground reference pin for the device. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Allegro MicroSystems, LLC |
| Package | SOT-23W |
| Category | Sensors |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply Voltage Range | VCC | 3 | 24 | V | Operating, TJ < 165°C | 3 | |
| Output Leakage Current | IOFF | 10 | µA | VOUT = 24 V, B < BRP | 3 | ||
| Output Saturation Voltage | VOUT(SAT) | 185 | 500 | mV | IOUT = 20 mA, B > BOP | 3 | |
| Output Current Limit | ION | 30 | 60 | mA | B > BOP | 3 | |
| Power-On Time | tPO | 50 | µs | VCC > 3.0 V | 3 | ||
| Output Rise Time | tR | 0.2 | 2 | µs | RLOAD = 820 Ω, CLOAD = 20 pF | 3 | |
| Output Fall Time | tF | 0.1 | 2 | µs | RLOAD = 820 Ω, CLOAD = 20 pF | 3 | |
| Supply Current (output off) | ICC | 3 | 8 | mA | B < BRP, VCC = 12 V | 3 | |
| Supply Current (output on) | ICC | 4 | 8 | mA | B > BOP, VCC = 12 V | 3 | |
| Reverse Battery Current | IRCC | -5 | mA | VRCC = -20 V | 3 | ||
| Zener Voltage | VZ + VD | 28 | V | ICC = 15 mA, TA = 25°C | 3 | ||
| Operate Point A3290 | BOP | 5 | 50 | G | TA = 25°C and TA(max) | 3 | |
| Release Point A3290 | BRP | -50 | -5 | G | TA = 25°C and TA(max) | 3 | |
| Hysteresis A3290 | BHYS | 10 | 100 | G | TA = 25°C and TA(max) | 3 | |
| Hysteresis A3290 | BHYS | 100 | G | TA = -40°C | 3 | ||
| Supply Voltage | VCC | 26.5 | V | 2 | |||
| Reverse Battery Voltage | VRCC | -30 | V | 2 | |||
| Output Off Voltage | VOUT | 26 | V | 2 | |||
| Continuous Output Current | IOUT | 25 | mA | Device provides internal current limiting to help protect itself from output short circuits | 2 | ||
| Reverse Output Current | IROUT | -50 | mA | 2 | |||
| Operating Ambient Temperature | TA | -40 | 125 | °C | Range K | 2 | |
| Maximum Junction Temperature | TJ(max) | 165 | °C | 2 | |||
| Storage Temperature | Tstg | -65 | 170 | °C | 2 | ||
| Package Thermal Resistance LH, 1-layer | RθJA | 228 | °C/W | Package LH, 1-layer PCB with copper limited to solder pads | 4 | ||
| Package Thermal Resistance LH, 2-layer | RθJA | 110 | °C/W | Package LH, 2-layer PCB with 0.463 in.2 of copper area each side connected by thermal vias | 4 | ||
| Chopping Frequency | fC | 800 | kHz | 3 | |||
| Zener Impedance | ZZ + ZD | 50 | Ω | ICC = 15 mA, TA = 25°C | 3 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | lead (Pb) free with 100% matte-tin leadframe plating. A3290-DS, Rev. 19 | 1 |
CAD (KiCad official)
- Symbol:
A3290KLHLX-T - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23W (KiCad packages3D, STEP)
- 3D model files:
a3290klhlx-t-etched.step/a3290klhlx-t-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);a3290klhlx-t.step/a3290klhlx-t.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Allegro MicroSystems, LLC datasheet (10 pp, sha256
e5c7a1a6ec30c674, retrieved 2026-10-23, tier: lcsc) - 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).
# A3290KLHLX-T
**Allegro MicroSystems, LLC** · Magnetic Sensors · SOT-23W
A3290KLHLX-T from Allegro MicroSystems, LLC, in a SOT-23W. 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 | VCC | power_in | Power supply input, operating range 3.0 to 24 V (absolute maximum 26.5 V, reverse battery -30 V); an external 0.1 µF bypass capacitor to ground is strongly recommended. |
| 2 | OUT | output | Short-circuit protected open-drain output that sinks up to 25 mA continuous (current limit 30 to 60 mA), with off voltage up to 26 V maximum. |
| 3 | GND | power_in | Ground reference pin for the device. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Allegro MicroSystems, LLC |
| Package | SOT-23W |
| Category | Sensors |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply Voltage Range | VCC | 3 | | 24 | V | Operating, TJ < 165°C | 3 |
| Output Leakage Current | IOFF | | | 10 | µA | VOUT = 24 V, B < BRP | 3 |
| Output Saturation Voltage | VOUT(SAT) | | 185 | 500 | mV | IOUT = 20 mA, B > BOP | 3 |
| Output Current Limit | ION | 30 | | 60 | mA | B > BOP | 3 |
| Power-On Time | tPO | | | 50 | µs | VCC > 3.0 V | 3 |
| Output Rise Time | tR | | 0.2 | 2 | µs | RLOAD = 820 Ω, CLOAD = 20 pF | 3 |
| Output Fall Time | tF | | 0.1 | 2 | µs | RLOAD = 820 Ω, CLOAD = 20 pF | 3 |
| Supply Current (output off) | ICC | | 3 | 8 | mA | B < BRP, VCC = 12 V | 3 |
| Supply Current (output on) | ICC | | 4 | 8 | mA | B > BOP, VCC = 12 V | 3 |
| Reverse Battery Current | IRCC | | | -5 | mA | VRCC = -20 V | 3 |
| Zener Voltage | VZ + VD | 28 | | | V | ICC = 15 mA, TA = 25°C | 3 |
| Operate Point A3290 | BOP | 5 | | 50 | G | TA = 25°C and TA(max) | 3 |
| Release Point A3290 | BRP | -50 | | -5 | G | TA = 25°C and TA(max) | 3 |
| Hysteresis A3290 | BHYS | 10 | | 100 | G | TA = 25°C and TA(max) | 3 |
| Hysteresis A3290 | BHYS | | | 100 | G | TA = -40°C | 3 |
| Supply Voltage | VCC | | | 26.5 | V | | 2 |
| Reverse Battery Voltage | VRCC | -30 | | | V | | 2 |
| Output Off Voltage | VOUT | | | 26 | V | | 2 |
| Continuous Output Current | IOUT | | | 25 | mA | Device provides internal current limiting to help protect itself from output short circuits | 2 |
| Reverse Output Current | IROUT | -50 | | | mA | | 2 |
| Operating Ambient Temperature | TA | -40 | | 125 | °C | Range K | 2 |
| Maximum Junction Temperature | TJ(max) | | | 165 | °C | | 2 |
| Storage Temperature | Tstg | -65 | | 170 | °C | | 2 |
| Package Thermal Resistance LH, 1-layer | RθJA | | 228 | | °C/W | Package LH, 1-layer PCB with copper limited to solder pads | 4 |
| Package Thermal Resistance LH, 2-layer | RθJA | | 110 | | °C/W | Package LH, 2-layer PCB with 0.463 in.2 of copper area each side connected by thermal vias | 4 |
| Chopping Frequency | fC | | 800 | | kHz | | 3 |
| Zener Impedance | ZZ + ZD | | 50 | | Ω | ICC = 15 mA, TA = 25°C | 3 |
## Materials and finish
As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | | tin | lead (Pb) free with 100% matte-tin leadframe plating. A3290-DS, Rev. 19 | 1 |
## CAD (KiCad official)
- Symbol: `A3290KLHLX-T`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23W (KiCad packages3D, STEP)
- 3D model files: `a3290klhlx-t-etched.step` / `a3290klhlx-t-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `a3290klhlx-t.step` / `a3290klhlx-t.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Allegro MicroSystems, LLC datasheet](docs/a3290klhlx-t-datasheet.pdf) (10 pp, sha256 `e5c7a1a6ec30c674`, retrieved 2026-10-23, tier: lcsc)
- **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/a3290klhlx-t-datasheet.pdf)