component
CR5218SC
Public Made by Adomby adom
Chip-Rail AC-DC Controllers & Regulators, SOP-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
markdownCR5218SC
Chip-Rail · AC-DC Controllers & Regulators · SOP-8
CR5218SC from Chip-Rail, 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 | CS | input | Current-sense pin for the external CS resistor used for primary peak current detection (input range -1 to 5 V, OCP threshold 500 mV typ, 300 ns LEB). |
| 2 | GND | power_in | Ground pin. |
| 3 | FB | input | Primary-side voltage feedback pin (input range -0.3 to 6 V, 1.2 V typ reference threshold, 0.5 V short-protection threshold). |
| 4 | VCC | power_in | IC supply pin providing voltage for normal operation (recommended 3.5 to 5 V, 5.2 V typ clamp at 2 mA). |
| 5 | C | passive | High-voltage collector terminal of the integrated power BJT (850 V VCBO for CR5218SC, 0.8 A collector current rating), tied with pins 6, 7 and 8. |
| 6 | C | passive | High-voltage collector terminal of the integrated power BJT (850 V VCBO for CR5218SC, 0.8 A collector current rating), tied with pins 5, 7 and 8. |
| 7 | C | passive | High-voltage collector terminal of the integrated power BJT (850 V VCBO for CR5218SC, 0.8 A collector current rating), tied with pins 5, 6 and 8. |
| 8 | C | passive | High-voltage collector terminal of the integrated power BJT (850 V VCBO for CR5218SC, 0.8 A collector current rating), tied with pins 5, 6 and 7. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Chip-Rail |
| Package | SOP-8 |
| Category | Power Management ICs |
| 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 breakdown voltage (SC, SA/SC/SD group) | VCC | 850 | V | 3 | |||
| FB/VCC input voltage | VFB/VVCC | -0.3 | 6 | V | 3 | ||
| CS input voltage | VCS | -1 | 5 | V | 3 | ||
| Maximum junction temperature | TJ | 150 | ℃ | 3 | |||
| Operating temperature range (absolute) | TA | -40 | 125 | ℃ | 3 | ||
| Storage temperature range | TSTG | -55 | 150 | ℃ | 3 | ||
| Lead temperature (soldering) | TL | 260 | ℃ | soldering time 10 s | 3 | ||
| VCC input voltage (recommended) | VVCC | 3.5 | 5 | V | 3 | ||
| Operating temperature range (recommended) | TA | -20 | 85 | ℃ | 3 | ||
| UVLO turn-on threshold voltage | UVLONO | 2.6 | 3 | 3.3 | V | 4 | |
| UVLO turn-off threshold voltage | UVLOOFF | 4 | 4.5 | 5 | V | 4 | |
| VCC clamp voltage | VCCCLAMP | 4.8 | 5.2 | 5.5 | V | IVCC=2mA | 4 |
| OCP over-power threshold voltage | VTH_OC | 480 | 500 | 520 | mV | 4 | |
| FB feedback threshold voltage | VFB_REF | 1.17 | 1.2 | 1.23 | V | 4 | |
| Collector rated current (SC) | IC | 0.8 | A | room temperature, discrete package (footnote **) | 4 | ||
| Primary peak current maximum (SC) | IP_MAX | 0.4 | A | 4 | |||
| Collector-base breakdown voltage (SC, SA/SC/SD group) | VCBO | 850 | V | 4 |
CAD (KiCad official)
- Symbol:
CR5218SC - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
cr5218sc-etched.step/cr5218sc-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cr5218sc.step/cr5218sc.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Chip-Rail datasheet (10 pp, sha256
1fdb54235fde0add, retrieved 2026-11-07, 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: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).