HY2213-BB3A 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	NC	unconnected	No connection. Leave floating or tie per PCB convention.
2	VDD	power_in	Positive power input pin. Connected to the positive terminal of the monitored cell through a current-limit resistor (typ. 100Ω). Absolute max VDD-VSS = VSS-0.3 to VSS+10 V; operating range 1.5-8 V. Typical operation current 2.5 μA at VDD=3.9 V.
3	VSS	power_in	Grounding end, negative power input pin. Connected to the negative terminal of the monitored cell.
4	NC	unconnected	No connection. Leave floating or tie per PCB convention.
5	NC	unconnected	No connection. Leave floating or tie per PCB convention.
6	OUT	output	Charge balance MOSFET gate control output. Drives the gate of an external balancing MOSFET (P-MOSFET on the BB3A/B variant; H→L is the active/turn-on transition). VOH ≈ VDD-0.02 V (typ), VOL ≈ 0.1 V (typ, max 0.5 V). Toggles when cell voltage crosses VCU (overcharge detect, ~4.200 V) or VCR (release, ~4.190 V).

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

HY2213-BB3A

CAD (KiCad official)

Symbol: HY2213-BB3A
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
`hy2213-bb3a.step`	97 KB	You want the bare part, or you mark your own boards.
`hy2213-bb3a-etched.step`	2.1 MB	You want the part with `HY2213-BB3A` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 528 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 (14 pp, sha256 c5ea01635c4386de, 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