component
JW1221A
Public Made by Adomby adom
JoulWatt Tech LED Drivers, SOT-23-6. Datasheet-verified pinout, 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
markdownJW1221A
JoulWatt Tech · LED Drivers · SOT-23-6
JW1221A from JoulWatt Tech, in a SOT-23-6. 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 | VIN | power_in | Power supply input internally clamped to 32V typical with startup threshold 16.5V typical, UVLO threshold 11.5V minimum, and quiescent current of 0.3mA typical in 17-27V operating range. |
| 2 | GND | power_in | Ground reference. |
| 3 | VC | bidirectional | LED current ripple programming capacitive interface rated -0.3V to 6V with typical startup current 0.65mA and external capacitor determining ripple frequency and amplitude. |
| 4 | VG | output | NMOSFET gate driver output with maximum voltage 10.5V typical and absolute maximum rating of 20V. |
| 5 | VS | power_in | LED current sense input from NMOSFET source limited to 0.255V typical maximum with absolute maximum 6V for maximum current protection. |
| 6 | VLMT | input | LED drain voltage limit and short protection programming input via external resistor rated -0.3V to 6V where external resistor sets voltage thresholds. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | JoulWatt Tech |
| Package | SOT-23-6 |
| Category | LED Drivers |
| Pins | 6 |
CAD (KiCad official)
- Symbol:
JW1221A - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
jw1221a-etched.step/jw1221a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);jw1221a.step/jw1221a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: JoulWatt Tech datasheet (11 pp, sha256
63e8e34a385f3883, retrieved 2026-09-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).