component

HY2120-LB

Public Made by Adom

by adom

HYCON Tech Battery Management, SOT-23-6. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs hy2120-lb: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
hy2120-lb-etched.fit.json hy2120-lb: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
hy2120-lb-etched.glb hy2120-lb: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
hy2120-lb-etched.step hy2120-lb: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
hy2120-lb.glb Publish 0.1.0 · Ray
hy2120-lb.kicad_mod Publish 0.1.0 · Ray
hy2120-lb.kicad_sym Publish 0.1.0 · Ray
hy2120-lb.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
hy2120-lb.step Publish 0.1.0 · Ray
package.json Publish 0.2.0 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
page.json hy2120-lb: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md hy2120-lb: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

HY2120-LB

HYCON Tech · Battery Management · SOT-23-6

HY2120-LB from HYCON Tech, in a SOT-23-6. 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 OD output MOSFET gate connection pin for discharge control. Drives the discharge-path N-MOSFET (M1). Output 'H' = VDD-0.02V typ, output 'L' = 0.2V typ; V_OD absolute max VSS-0.3 to VDD+0.3 V.
2 OC output MOSFET gate connection pin for charge control. Drives the charge-path N-MOSFET (M2). Output 'H' = VDD-0.02V typ, output 'L' = 0.2V typ; high-withstanding-voltage pin, V_OC absolute max VDD-33 to VDD+0.3 V.
3 CS input Input pin for current sense and charger detect. Senses the voltage across the external MOSFET stack for discharge-overcurrent, short-circuit, and charge-overcurrent detection; also detects charger insertion. High-withstanding-voltage pin, V_CS absolute max VDD-33 to VDD+0.3 V. Typically connected to PB- through a 2kΩ resistor.
4 VC input Center-tap input for the two-cell battery stack. Connects to the node between Cell1 and Cell2 through a 330Ω resistor with a 0.1µF filter cap to VSS; enables per-cell overcharge/overdischarge monitoring.
5 VDD power_in Positive supply pin (connects to the top of the 2-cell stack, PB+). Operating range 1.5V to 10V; absolute max VSS-0.3 to VSS+10V. Typical supply current 5µA (9µA max) at VDD=7.8V; 0.1µA max power-down at VDD=4.0V. Bypass with 0.1µF cap to VSS, feed via 330Ω series resistor.
6 VSS power_in Ground pin. Reference for all internal circuitry; connects to the bottom of the 2-cell stack (Cell2 negative terminal).

Key specifications

Parameter Value
Manufacturer HYCON Tech
Package SOT-23-6
Category PMIC
Pins 6

Ordering variants

Same part, different packaging or reel option.

  • HY2120-LB

CAD (KiCad official)

  • Symbol: HY2120-LB
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: hy2120-lb-etched.step / hy2120-lb-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hy2120-lb.step / hy2120-lb.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
hy2120-lb.step 97 KB You want the bare part, or you mark your own boards.
hy2120-lb-etched.step 1.5 MB You want the part with HY2120-LB already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 389 faces against 117 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: HYCON Tech datasheet (22 pp, sha256 844f87e84a0b25dc, retrieved 2026-08-17, tier: lcsc)
  • 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