CN3600

@@ -0,0 +1,48 @@+# CN3600++**ShangHai Consonance Elec** · Battery Management · ESOP-8++CN3600 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 | CHRG | output | Charge status indicator, open-drain output. Pulled low by an internal N-channel MOSFET during constant-current or trickle charge; high-impedance otherwise. Sink capability 10 mA at VCHRG=0.3V. |+| 2 | Isel | input | Inductor peak current select input. Logic high sets ipeak=1.19A (CC mode) / 0.62A (trickle); logic low sets ipeak=0.64A / 0.44A. TTL/CMOS compatible; VIL max 0.7V, VIH min 2.2V. Do not drive between 0.7V-2.2V. |+| 3 | BAT | power_out | Battery positive terminal sense/connection. The IC monitors this pin to determine charger state (Vhigh=1.46V typ, Vcct=1.36V typ, Vrech=1.339V typ, Vov=1.557V typ). IBAT ~6.3 uA at VBAT=1.5V. |+| 4 | GND | power_in | Ground connection. Negative return for the input supply and battery. |+| 5 | SW | output | Switching node to external inductor. Internally driven by a P-channel MOSFET to VIN (RdsonP ~0.4Ω) and an N-channel MOSFET to GND (RdsonN ~0.3Ω). Fixed 2 us off-time PFM control. |+| 6 | VIN | power_in | Input supply positive. Operating range 2.7V to 6.5V; UVLO max 2.65V. Quiescent current ~320 uA at VIN=5V with VBAT=2.1V and no switching. Absolute max 7.0V. |+| 7 | DONE | output | Charge-complete status indicator, open-drain output. Pulled low by an internal switch when charging ends; high-impedance otherwise. Sink capability 10 mA at VDONE=0.3V. |+| 8 | CT | passive | Timing capacitor connection. A capacitor from CT to GND sets the trickle-charge timeout: t_timing = 12.18e9 × C2 (seconds). C2 should be >100 pF for good accuracy; typically 1 uF or 2.2 uF X5R/X7R ceramic. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | ShangHai Consonance Elec |+| Package | ESOP-8 |+| Category | PMIC |+| Pins | 8 |++## Ordering variants++- `CN3600`++## CAD (KiCad official)++- Symbol: `CN3600`+- Footprint: `Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm`+- 3D model: ESOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [ShangHai Consonance Elec datasheet](docs/cn3600-datasheet.pdf) (10 pp, sha256 `d9bdc1408664b261`, 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](docs/cn3600-datasheet.pdf)

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