CN3163

@@ -0,0 +1,47 @@+# CN3163++**ShangHai Consonance Elec** · Battery Management · ESOP-8++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++- `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)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [ShangHai Consonance Elec datasheet](docs/cn3163-datasheet.pdf) (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](docs/cn3163-datasheet.pdf)

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