component
SY5882AFAC
Public Made by Adomby adom
Silergy Corp LED Drivers, SO-8. 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
markdownSY5882AFAC
Silergy Corp · LED Drivers · SO-8
SY5882AFAC from Silergy Corp, in a SO-8. 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 | COMP | passive | Loop compensation pin; connect an RC network across this pin and GND to stabilize the control loop. |
| 2 | ZCS | input | Inductor current zero-crossing detection input, fed from the auxiliary winding through a resistor divider; it also provides output over-voltage protection (trips above VZCS,OVP, 1.5 V typ), line regulation modification and CV detection. |
| 3 | ISEN | input | Primary current sense input, connected to the source of the primary switch with the sense resistor between that source and GND; the current limit reference VISEN_MAX is 450 mV. |
| 4 | GND | power_in | Ground pin. |
| 5 | DRV | output | Gate driver output connected to the gate of the primary MOSFET, with a 12 V gate drive, 200 mA maximum source current and 650 mA minimum sink current. |
| 6 | VIN | power_in | Power supply pin with a recommended operating range of 8.5 V to 20 V, which also provides output over-voltage protection together with the ZCS pin. |
| 7 | ADIM | passive | Analog dimming pin that must be bypassed to GND with enough capacitance to hold the internal voltage reference; the analog dimming range is 75 mV to 1.35 V. |
| 8 | PWM | input | PWM dimming input that detects the dimming signal, sensed high above VPWM_ON (1.2 V) and low below VPWM_OFF (0.5 V). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Silergy Corp |
| Package | SO-8 |
| Category | LED Drivers |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VIN Turn-on Threshold | VVIN_ON | 19.5 | 20.5 | 22 | V | 5 | |
| VIN Turn-off Threshold | VVIN_OFF | 6.7 | 7.3 | 8 | V | 5 | |
| Internal Reference Voltage | VREF | 294 | 300 | 306 | mV | 5 | |
| Maximum Source Current | ISOURCE | 200 | mA | 5 | |||
| Minimum Sink Current | ISINK | 650 | mA | 5 | |||
| Max ON Time | TON_MAX | 23 | µs | VCOMP=2.7V | 5 | ||
| Min ON Time | TON_MIN | 450 | ns | 5 | |||
| Max OFF Time | TOFF_MAX | 60 | µs | 5 | |||
| Min OFF Time | TOFF_MIN | 1.6 | µs | 5 | |||
| Maximum Switching Frequency | fMAX | 120 | kHz | 5 | |||
| Analog Dimming Range | VADIM,Dimming | 0.075 | 1.35 | V | 5 | ||
| Recommended supply voltage VIN, DRV | 8.5 | 20 | V | 4 | |||
| Absolute max VIN, DRV | -0.3 | 26 | V | 4 | |||
| Absolute max supply current | IVIN | 7 | mA | 4 | |||
| Absolute max ZCS, PWM | -0.3 | 23 | V | 4 | |||
| Absolute max ADIM | -0.3 | 15 | V | 4 | |||
| Absolute max ISEN, COMP | -0.3 | 3.6 | V | 4 | |||
| Power Dissipation SO8 | 1.1 | W | TA = 25°C | 4 | |||
| Junction Temperature Range | -40 | 150 | °C | 4 | |||
| Lead Temperature (soldering) | 260 | °C | Soldering, 10 sec. | 4 | |||
| Storage Temperature Range | -65 | 150 | °C | 4 | |||
| Package thermal resistance SO8 junction-to-ambient | θJA | 88 | °C/W | 4 | |||
| Package thermal resistance SO8 junction-to-case | θJC | 45 | °C/W | 4 | |||
| Start up Current | IST | 34 | µA | VVIN<VVIN_ON | 5 | ||
| ZCS Pin OVP Voltage Threshold | VZCS_OVP | 1.5 | V | 5 | |||
| Current Limit Reference Voltage | VISEN_MAX | 450 | mV | 5 | |||
| Gate Driver Voltage | VGate | 12 | V | 5 | |||
| ADIM Enable ON | VADIM_ON | 0.075 | V | 5 | |||
| ADIM Enable OFF | VADIM_OFF | 0.037 | V | 5 | |||
| Thermal Fold Back Temperature | TFB | 150 | °C | 5 | |||
| Thermal Shut Down Temperature | TSD | 160 | °C | 5 | |||
| PWM ON Voltage | VPWM_ON | 1.2 | V | 5 | |||
| PWM OFF Voltage | VPWM_OFF | 0.5 | V | 5 |
CAD (KiCad official)
- Symbol:
SY5882AFAC - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files:
sy5882afac-etched.step/sy5882afac-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sy5882afac.step/sy5882afac.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Silergy Corp datasheet (24 pp, sha256
f9ae1b5d8c1ae7a2, retrieved 2026-10-19, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).