component
L4986A
Public Made by Adomby adom
STMicroelectronics AC-DC Controllers And Regulators, SSOP-10. 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
markdownL4986A
STMicroelectronics · AC-DC Controllers And Regulators · SSOP-10
L4986A from STMicroelectronics, in a SSOP-10. 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 | Supply voltage input with recommended operating range -0.3 to 24.5 V (internal clamp at 24.5 V minimum) and maximum supply current 25 mA. |
| 2 | GD | output | Gate driver output capable of 0.7 A source current and 1.5 A sink current (typical values) for driving power MOSFETs and IGBTs. |
| 3 | GND | power_in | IC ground providing current return for both signal/bias circuitry and gate driver current paths. |
| 4 | CS | input | Current sense input with recommended range -10 to 3.3 V and internal overcurrent comparator thresholds at VCS_OCP1 (-0.49 V typ.) and VCS_OCP2 (-0.75 V typ.) with zero current detection at VCS_ZCD (-10 mV typical). |
| 5 | PG_OUT | output | Open drain power good output actively pulled to ground when FB pin voltage exceeds VPGOOD_ON (2.375 V typ.) and set to high impedance when PG_IN is below VPGOOD_OFF (1.25 V typ.). |
| 6 | PG_IN | input | Power good input with recommended range -0.3 to 3.0 V (internal clamp) used to set PGOOD comparator off-threshold at 1.25 V typ. and connected to output voltage divider. |
| 7 | FB | input | Feedback input to error amplifier with recommended range -0.3 to 3.0 V (internal clamp), internal reference VREF = 2.5 V, overshoot protection threshold at 7% above steady state (VFB_S), and burst-mode activation threshold VFB_FF/EBM at 0.5 V typ. |
| 8 | COMP | output | Error amplifier output with recommended range -0.3 to 5.3 V, burst mode shutdown threshold VCOMP_S at 1 V typ., and external disable threshold VCOMP_DIS at 0.7 V typ. |
| 9 | NC | unconnected | High voltage spacer pin that is not internally connected to isolate high voltage section from low voltage circuitry and ensure PCB creepage distance compliance with safety regulations. |
| 10 | HV | input | High voltage startup and AC sensing input rated to withstand 600 V (operating) or 800 V (absolute maximum) with startup threshold VHV_START at 29 V typ., providing AC line sensing and active X-capacitor discharge function. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SSOP-10 |
| Category | Power Management (PMIC) |
| Pins | 10 |
CAD (KiCad official)
- Symbol:
L4986A - Footprint:
Package_SO:SSOP-10_3.9x4.9mm_P1.00mm - 3D model: SSOP-10 (KiCad packages3D, STEP)
- 3D model files:
l4986a-etched.step/l4986a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);l4986a.step/l4986a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (31 pp, sha256
0bf483ac06ae30e9, retrieved 2026-10-01, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(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).