component
SY59516FAC
Public Made by Adomby adom
Silergy Corp AC-DC Controllers And Regulators, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownSY59516FAC
Silergy Corp · AC-DC Controllers And Regulators · SOP-8
SY59516FAC from Silergy Corp, in a SOP-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 | HB | power_in | High-side floating supply reference ground and source of the high-side internal 500V MOSFET. |
| 2 | LX | output | Low-side driver control pin that pulls LX up to VB or down to HB to send control signals to SY59515; absolute maximum rating is -0.3V to 36V. |
| 3 | VB | power_in | High-side floating supply; VB turn-on threshold is 20.5 to 25.5V (23V typ) and turn-off threshold is 8.7 to 10.7V (9.7V typ), with absolute maximum of -0.3 to 36V. |
| 4 | CS | input | Primary current sense input that receives the resonant current through a sample resistor for OCP and sets the LED current via VREF; absolute maximum rating is -0.6V to 0.6V. |
| 5 | HV | passive | Drain of the internal 500V MOSFET, connected to the bus through an external resistor to supply start-up charge current; absolute maximum rating is -0.3V to 500V. |
| 6 | HV | passive | Drain of the internal 500V MOSFET, connected to the bus through an external resistor to supply start-up charge current; absolute maximum rating is -0.3V to 500V. |
| 7 | HV | passive | Drain of the internal 500V MOSFET, connected to the bus through an external resistor to supply start-up charge current; absolute maximum rating is -0.3V to 500V. |
| 8 | HV | passive | Drain of the internal 500V MOSFET, connected to the bus through an external resistor to supply start-up charge current; absolute maximum rating is -0.3V to 500V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Silergy Corp |
| Package | SOP-8 |
| Category | Power Management (PMIC) |
| 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 |
|---|---|---|---|---|---|---|---|
| VB Turn-on Threshold | VVB_ON | 20.5 | 23 | 25.5 | V | 4 | |
| VB Turn-off Threshold | VVB_OFF | 8.7 | 9.7 | 10.7 | V | 4 | |
| Quiescent current | IQ | 170 | 230 | 290 | µA | before VB_ON | 4 |
| Current Reference Voltage | VREF | 147.5 | 152 | 156.5 | mV | 4 | |
| MOSFET Rdson | Rdson | 0.75 | 1 | 1.25 | Ω | 4 | |
| Breakdown Voltage | VBV | 500 | 540 | V | VGS=0, IDS=250µA | 4 | |
| Maximum Switching Frequency | FMAX | 200 | 230 | 260 | kHz | 4 | |
| Minimum Switching Frequency | FMIN | 25 | 29 | 33 | kHz | 4 | |
| Minimum On Time | TMIN_ON | 450 | 575 | 700 | ns | 4 | |
| Thermal Fold Back Temperature | TFB | 139 | 149 | 159 | ℃ | 4 | |
| Thermal Shut Down Temperature | TSD | 160 | ℃ | 4 | |||
| Junction Temperature Range | -40 | 150 | °C | 4 | |||
| Ambient Temperature Range | -40 | 150 | °C | 4 | |||
| HV pin voltage | -0.3 | 500 | V | 4 | |||
| LX pin voltage | -0.3 | 36 | V | 4 | |||
| VB pin voltage | -0.3 | 36 | V | 4 | |||
| CS pin voltage | -0.6 | 0.6 | V | 4 | |||
| Power Dissipation SO8 | 1.1 | W | @ TA = 25°C | 4 | |||
| Maximum Junction Temperature | 150 | °C | 4 | ||||
| Lead Temperature (Soldering) | 260 | °C | 10 sec. | 4 | |||
| Storage Temperature Range | -65 | 150 | °C | 4 | |||
| Package Thermal Resistance junction-to-ambient SO8 | θJA | 88 | °C/W | 4 | |||
| Package Thermal Resistance junction-to-case SO8 | θJC | 45 | °C/W | 4 |
CAD (KiCad official)
- Symbol:
SY59516FAC - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
sy59516fac-etched.step/sy59516fac-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sy59516fac.step/sy59516fac.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Silergy Corp datasheet (11 pp, sha256
4851fe4ac96a4217, retrieved 2026-10-18, 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).