HY2111-GB 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 external N-MOSFET (M1) that gates the discharge current path. Output HIGH (V_DH ≥ VDD-0.1V) enables discharge; output LOW (V_DL ≤ 0.5V) during overdischarge or discharge overcurrent disables it.
2	CS	input	Overcurrent detection input and charger detection terminal. Senses the voltage across the two series N-MOSFETs (via R2, typ 2kΩ) to detect discharge overcurrent (V_DIP=150±25mV), charge overcurrent (V_CIP=-100mV), and load short-circuit (V_SIP=0.85V). High-voltage tolerant: absolute maximum VDD-20V to VDD+0.3V (rated 20V for charger-reverse protection).
3	OC	output	Charge-control MOSFET gate drive output. Drives the external N-MOSFET (M2) that gates the charge current path. Output HIGH (V_CH ≥ VDD-0.1V) enables charging; output LOW (V_CL ≤ 0.5V) during overcharge or charge overcurrent disables it. High-voltage tolerant: absolute maximum VDD-20V to VDD+0.3V.
4	NC	unconnected	No internal connection. Leave floating or tie as convenient for PCB routing.
5	VDD	power_in	Positive power supply input, connected to the battery positive terminal through R1 (typ 100Ω). Operating range 1.5V to 8V (V_DSOP1); absolute maximum VSS-0.3V to VSS+10V. Bypass to VSS with C1 (typ 0.1μF, min 0.01μF).
6	VSS	power_in	Negative power supply input / ground reference. Connected to the battery negative terminal (cell ground, not pack ground). All internal detection voltages 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.

HY2111-GB

CAD (KiCad official)

Symbol: HY2111-GB
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
`hy2111-gb.step`	97 KB	You want the bare part, or you mark your own boards.
`hy2111-gb-etched.step`	1.4 MB	You want the part with `HY2111-GB` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 371 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 (18 pp, sha256 f1cf4ba2fb7a51df, 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