CN3302

@@ -0,0 +1,47 @@+# CN3302++**ShangHai Consonance Elec** · Battery Management · SOP-8++CN3302 from ShangHai Consonance Elec, in a SOP-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 | STAT | output | Charge status indicator output (CMOS). High level indicates the charger is in charging state; low level indicates charging has ended. Can drive an LED directly or interface with an MCU input; sink/source capability ~10mA. |+| 2 | CE | input | Chip enable input. A high level (>=2.2V) enables normal operation; a low level (<=0.7V) shuts CN3302 down. Compatible with TTL/CMOS logic levels; do not leave floating between 0.7V and 2.2V. |+| 3 | BAT | input | Battery voltage feedback input. Connects directly to the positive terminal of the 2-cell Li-ion battery to sense pack voltage (charge termination 8.4V typ, recharge 8.095V typ, over-voltage protection ~1.0663 x Vterm). Absolute max -0.3V to 18V. |+| 4 | GND | power_in | Power ground / device return. Common ground for the input supply and the battery negative terminal. |+| 5 | LDRV | output | Gate driver output for the external low-side N-channel power MOSFET. Drives the switch that stores energy in the boost inductor; typical peak drive current ~0.65A, VOH >= VCC-0.3V, VOL <= 0.3V. |+| 6 | HDRV | output | Gate driver output for an optional external high-side P-channel power MOSFET. Used only when low-battery / short-circuit protection with buck-mode operation is needed; leave floating if not used. Typical peak drive current ~0.8A. |+| 7 | VIN | power_in | Positive supply input (2.75V to 6.5V) that powers the internal circuitry and also serves as the positive terminal of the inductor / input current sense. Quiescent current ~280 uA at VBAT=8.6V, no switching. |+| 8 | CSN | input | Inductor / input current sense negative input. A sense resistor Rcs is connected between VIN and CSN; in normal operation (VIN-CSN) has an upper threshold of ~125 mV and lower threshold of ~85 mV (constant-current mode). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | ShangHai Consonance Elec |+| Package | SOP-8 |+| Category | PMIC |+| Pins | 8 |++## Ordering variants++- `CN3302`++## CAD (KiCad official)++- Symbol: `CN3302`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [ShangHai Consonance Elec datasheet](docs/cn3302-datasheet.pdf) (13 pp, sha256 `551905dad923bfdc`, 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/cn3302-datasheet.pdf)

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