component

SS54123C

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by Ray

orisilicon Leakage Protection ICs, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentpower management (pmic)ss54123c
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Symbol & Footprint

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Datasheet

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Contents

README

markdown

SS54123C

orisilicon · Leakage Protection ICs · SOP-8

SS54123C from orisilicon, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 NC unconnected No connection (悬空). Leave floating.
2 IN1 input Op-amp input 1 (运放输入管脚 1). Differential leakage-current sense input from the zero-current transformer (ZCT); trip threshold
3 IN2 input Op-amp input 2 (运放输入管脚 2). Differential leakage-current sense input from the ZCT, complementary to IN1.
4 GND power_in Chip ground reference (芯片地).
5 OS output SCR trigger output (可控硅触发输出管脚). Drives an external SCR gate to trip the breaker when a leakage event is detected. IOS typ. 180 uA at VS=12V; when the breaker fails to trip, OS emits a 30ms:100ms duty-cycle pulse train (~15 pulses) to guarantee shutoff.
6 NC unconnected No connection (悬空). Leave floating.
7 OA output Filter / trigger-delay adjustable output pin (滤波、触发延时可调输出管脚). External capacitor (typically 150 nF) sets the filtering and trip-latch response; VOS typical 3-5.5 V.
8 VS power_in Supply pin (电源管脚). Clamped internally to ~12 V (VS regulator at IS=1 mA). Absolute max VS-GND = -0.3 V to +24 V; typical operating VS = 5-12 V.

Key specifications

Parameter Value
Manufacturer orisilicon
Package SOP-8
Category Power Management (PMIC)
Pins 8

CAD (KiCad official)

  • Symbol: SS54123C
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: orisilicon datasheet (14 pp, sha256 bd8f123bb5a529c6, retrieved 2026-08-17, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF