FH9261-DAA from XIN FEI HONG, 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 connection terminal. Drives the gate of the external N-MOSFET that controls the discharge path; outputs high (VDD-0.02V typ) in normal state and pulled low (0.1V typ) to disable discharge on overdischarge / overcurrent / short-circuit events.
2	CS	input	Overcurrent detection input / charger detection terminal. Senses the voltage across the external MOSFET stack to detect discharge overcurrent (VDIP=80mV typ), load short (VSIP=0.580V typ) and charge overcurrent (VCIP=-100mV typ). Absolute max VDD-25V to VDD+0.3V.
3	OC	output	Charge control MOSFET gate connection terminal. Drives the gate of the external N-MOSFET that controls the charge path; outputs high in normal state and pulled low to disable charging on overcharge or charge overcurrent events. High-withstand-voltage design (up to 25V absolute max).
4	NC	unconnected	No connection. Leave floating or tie to convenient net; no internal bond.
5	VDD	power_in	Positive power supply input terminal. Connects to the battery positive terminal through R1 (100 ohm typ) with C1 (0.1 uF typ) bypass to VSS. Operating VDD-VSS range 1.5V to 8V; absolute max VSS-0.3V to VSS+10V.
6	VSS	power_in	Ground / negative power supply input terminal. Connects to battery negative terminal, which is the IC reference for VDD, OC and CS measurements.

Key specifications

Parameter	Value
Manufacturer	XIN FEI HONG
Package	SOT-23-6
Category	PMIC
Pins	6

Ordering variants

Same part, different packaging or reel option.

FH9261-DAA

CAD (KiCad official)

Symbol: FH9261-DAA
Footprint: Package_TO_SOT_SMD:SOT-23-6
3D model: SOT-23-6 (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: XIN FEI HONG datasheet (17 pp, sha256 9148f1ec1953803a, 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