HY2112-CB 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	Discharge-control MOSFET gate drive output. Drives the gate of the external discharge N-MOSFET (M1). Output high (VDD-0.02V typ) in normal operation; pulled low (~0.1V) to disable discharge during overdischarge, discharge-overcurrent, or load-short conditions.
2	CS	input	Overcurrent sense input / charger detection terminal. Monitors the voltage across the two series MOSFETs (via R2, 2kΩ typ) to detect discharge overcurrent (V_DIP=200mV for -CB), charge overcurrent (V_CIP=-200mV), and load short-circuit (V_SIP=0.85V). High-voltage tolerant (VDD-20 to VDD+0.3V, abs-max 20V) for charger connection.
3	OC	output	Charge-control MOSFET gate drive output. Drives the gate of the external charge N-MOSFET (M2) through an internal level-shifter. Output high (VDD-0.02V typ) in normal operation; pulled low (~0.1V) to disable charging during overcharge or charge-overcurrent conditions. High-voltage tolerant (abs-max 20V) for charger interfacing.
4	NC	unconnected	No internal connection. Leave floating or tie to VSS on the PCB.
5	VDD	power_in	Positive supply input. Connect to the battery positive terminal through a 100Ω current-limit / ESD resistor (R1) with a 0.1µF bypass capacitor (C1) to VSS. Operating range 1.5-8V (VDD-VSS), absolute maximum VSS+10V. Typical operating current 3.0µA at VDD=3.2V.
6	VSS	power_in	Ground / negative supply input. Connect to the battery negative terminal (cell -) and to the IC ground reference. All internal voltage detection thresholds are referenced to VSS.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

HY2112-CB

CAD (KiCad official)

Symbol: HY2112-CB
Footprint: Package_TO_SOT_SMD:SOT-23-6
3D model: SOT-23-6 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`hy2112-cb.step`	97 KB	You want the bare part, or you mark your own boards.
`hy2112-cb-etched.step`	1.5 MB	You want the part with `HY2112-CB` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 383 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 (17 pp, sha256 003247d01174fb89, 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