component
SCS5090EA
Public Unreviewedby Ray
JSMSEMI Battery Management, ESOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads when scrolled away or the tab is hidden.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads when scrolled away or the tab is hidden.
PCB Footprint
Open full view ↗Loads on click. Unloads when scrolled away or the tab is hidden.
Datasheet
Open in new tab ↗Loads on click. Unloads when scrolled away or the tab is hidden.
README
markdownSCS5090EA
JSMSEMI · Battery Management · ESOP-8
SCS5090EA from JSMSEMI, in a ESOP-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 | VIN | power_in | 5V USB input supply. Recommended operating range 3.6V to 6V; absolute maximum 30V. Bypass close to the pin with 10uF + 0.1uF ceramic capacitors. |
| 2 | AGND | power_in | Analog ground return for internal reference and control circuitry. Should be tied to the power ground plane at a single point near the thermal pad. |
| 3 | LX | passive | Boost converter switch node. Connect to the boost inductor (recommended >=2.2uH CD54, 4.7uH typical) and to the anode of the SS54 rectifier. Keep trace short to minimize EMI; optional RC snubber (5.1R + 4.7nF) may be added for EMI reduction. |
| 4 | VBS | power_out | Boost converter output node (post-rectifier). Bulk decoupled with 22uF + 0.1uF capacitors. Absolute maximum 30V. |
| 5 | BAT | power_out | Battery connection for a 2-series Li-ion/Li-polymer pack. Charge float voltage typ. 8.42V; recharge threshold 250mV below Vcv; BAT OVP typ. 9.2V; short-circuit threshold 2.3V. Decouple with 22uF + 0.1uF. |
| 6 | ICHG | input | Charge current program pin. Sets constant-current charge level via an external resistor R_ICHG to GND using Icc = 1000 / R_ICHG (Icc in A, R in kΩ). 1KΩ yields ~1A; max programmable current 1.8A. |
| 7 | NTC | bidirectional | NTC thermistor sense input with dual-purpose enable function. Sources a constant 20uA (18-22uA) and monitors the voltage across an external NTC divider; hot threshold 0.38V, cold threshold 1.43V halt charging. Pulling NTC below ~0.2V (near 0V) disables the chip (STAT goes high-Z). Leave floating if NTC monitoring is unused. |
| 8 | STAT | output | Open-drain charge status indicator. Low (LED on) during charging; high-impedance when charging is complete; blinks at 1.6Hz on fault conditions (input OVP, output UVP/OVP, NTC out-of-range, short-circuit, timeout, or thermal shutdown). Typically driven with an LED and 1KΩ series resistor to VIN. |
| 9 | PGND | power_in | Power ground / exposed thermal pad on the bottom of the ESOP-8 package. Must be soldered to a large ground copper pour for both electrical return of the power stage and thermal dissipation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | JSMSEMI |
| Package | ESOP-8 |
| Category | PMIC |
| Pins | 9 |
CAD (KiCad official)
- Symbol:
SCS5090EA - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
scs5090ea.step |
125 KB | You want the bare part, or you mark your own boards. |
scs5090ea-etched.step |
2.3 MB | You want the part with SCS5090EA already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 557 faces against 152 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: JSMSEMI datasheet (9 pp, sha256
7418c580e9bfa546, 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).