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SY59516FAC

Public Made by Adom

by adom

Silergy Corp AC-DC Controllers And Regulators, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SY59516FAC

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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sy59516fac.step / sy59516fac.glb are 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, primary claude-haiku-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