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Contents

README

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SY59515FAC

Silergy Corp · AC-DC Controllers And Regulators · SOP-8

SY59515FAC 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 HV input HV start pin and HV OVP/UVP sense pin, with absolute maximum rating of -0.3V to 600V and HV OVP threshold of 455V to 511V at 0Ω RHV_EXT.
2 VCC power_in Bias supply for the low side circuit and LED OVP detection, rated -0.3V to 36V absolute maximum with VCC turn-on threshold of 10.6V to 12.2V.
3 LX input Low side driver control pin that receives the control signal from SY59516, with absolute maximum rating of -0.6V to 600V.
4 GND power_in Ground pin for the low side circuit and source of the low side internal 500V MOSFET.
5 HB passive Drain of the internal 500V MOSFET, with absolute maximum rating of -0.6V to 500V.
6 HB passive Drain of the internal 500V MOSFET, with absolute maximum rating of -0.6V to 500V.
7 HB passive Drain of the internal 500V MOSFET, with absolute maximum rating of -0.6V to 500V.
8 HB passive Drain of the internal 500V MOSFET, with absolute maximum rating of -0.6V 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
VCC Turn-on Threshold VVCC_ON 10.6 11.4 12.2 V 4
VCC Turn-off Threshold VVCC_OFF 7.2 7.9 8.6 V 4
VCC OVP Voltage VVCC_OVP 26 27.8 29.6 V 4
Quiescent Current before VVCC_ON IQ 190 245 300 µA 4
HV Start up Current IST_HV 1.4 2 2.6 mA 4
MOSFET Rdson Rdson 0.75 1 1.25 Ω 4
Breakdown Voltage VBV 500 540 V VGS=0, IDS=250µA 4
HV OVP VHV_OVP 455 483 511 V 4
HV UVP VHV_UVP 160 178 196 V 4
MIN_ON TMIN_ON 400 525 650 ns 4
HV pin voltage HV -0.3 600 V 4
VCC pin voltage VCC -0.3 36 V 4
LX pin voltage LX -0.6 600 V 4
HB pin voltage HB -0.6 500 V 4
Power Dissipation 1.1 W SO8, TA = 25°C 4
Maximum Junction Temperature 150 °C 4
Lead Temperature (Soldering) 260 °C soldering, 10 sec 4
Storage Temperature Range -65 150 °C 4
Junction Temperature Range -40 150 °C 4
Ambient Temperature Range -40 120 °C 4
Package Thermal Resistance junction-to-ambient θJA 88 °C/W SO8, natural convection, TA = 25°C, JEDEC 51-3 board 4
Package Thermal Resistance junction-to-case θJC 45 °C/W SO8 4

CAD (KiCad official)

  • Symbol: SY59515FAC
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: sy59515fac-etched.step / sy59515fac-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sy59515fac.step / sy59515fac.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Silergy Corp datasheet (12 pp, sha256 f6170c09255a6357, 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