CN3163 from ShangHai Consonance Elec, in a ESOP-8. 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	TEMP	input	Battery temperature sense input. Connect to the output of an NTC thermistor at the battery. Charging is paused when V(TEMP) < 45% or > 80% of V(VIN), indicating over/under temperature. Tying TEMP to GND disables the temperature monitoring function.
2	ISET	passive	Constant-current charge programming and charge-current monitor. Connect an external resistor R_ISET from ISET to GND to program the charge current. V(ISET) = 0.12 V in trickle mode and 1.205 V in constant-current mode. Charge current can be monitored as I_CH = (V_ISET × 986) / R_ISET.
3	GND	power_in	Device ground reference.
4	VIN	power_in	Positive supply input, 4.4 V to 6 V. Powers internal circuitry. When V(VIN) − V(BAT) < 10 mV the chip enters low-power sleep mode with BAT pin current < 3 μA.
5	BAT	power_out	Battery connection. Connect to the positive terminal of the Li-ion cell. Sources the charge current and constant-voltage charge voltage; draws < 3 μA in UVLO or sleep mode.
6	DONE	output	Open-drain end-of-charge status output (active-low). Pulled low by an internal switch when charging has terminated; otherwise high-impedance. Sink capability 10 mA at V_DONE = 0.3 V; leakage < 1 μA at 6 V.
7	CHRG	output	Open-drain charge-in-progress status output (active-low). Pulled low by an internal switch while charging is active; otherwise high-impedance. Sink capability 10 mA at V_CHRG = 0.3 V; leakage < 1 μA at 6 V.
8	FB	input	Battery voltage sense (feedback) input. Sense the battery positive terminal here to eliminate errors from wire/contact resistance between BAT pin and the cell. An external resistor between FB and BAT can be used to raise the constant-voltage charge voltage per V_REG = 4.2 + 3.707e-6 × Rx.

Key specifications

Parameter	Value
Manufacturer	ShangHai Consonance Elec
Package	ESOP-8
Category	PMIC
Pins	8

Ordering variants

Same part, different packaging or reel option.

CN3163

CAD (KiCad official)

Symbol: CN3163
Footprint: Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm
3D model: ESOP-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`cn3163.step`	193 KB	You want the bare part, or you mark your own boards.
`cn3163-etched.step`	1.3 MB	You want the part with `CN3163` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 326 faces against 63 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: ShangHai Consonance Elec datasheet (12 pp, sha256 7d0dc5229ca5f9c1, 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