CN3153

@@ -0,0 +1,49 @@+# CN3153++**ShangHai Consonance Elec** · Battery Management · ESOP-8++CN3153 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 | PREC | input | Trickle (pre-charge) current select. Tie to GND for trickle current = 10% of programmed CC current; tie to VIN for trickle current = 100% of programmed CC current. VHIGH threshold >= 80% of VIN, VLOW <= 0.6V, IPREC <= 0.5µA. |+| 2 | ISET | passive | Constant-current programming and charge-current monitor pin. Connect a resistor RISET from ISET to GND to set the CC charge current: ICH = 1218V / RISET (e.g. 1.22kΩ → ~1A). Pin voltage is regulated to 1.205V in CC mode and to 0.12V in trickle mode (when PREC=GND). Charge current may be monitored via ICH = (VISET × 1011) / RISET. |+| 3 | GND | power_in | Power ground (电源地). Common ground return for the input supply, ISET resistor, and battery negative terminal. |+| 4 | VIN | power_in | Positive input supply, 3.8V to 6.5V operating range. UVLO trips at ~3.2V (typ). When VIN - VBAT < 10mV the device enters low-power sleep mode with IBAT < 3µA. Bypass with at least 1µF to GND close to the pin. |+| 5 | BAT | power_out | Battery connection. Sources CC/CV charge current to the single-cell Li-ion battery positive terminal. Delivers up to 1A (SOP8/PP package) or 500mA (plain SOP8). Bypass to GND with 4.7µF-10µF for loop stability; if long wiring is used, add ~0.5-1Ω in series with the output cap to damp LC oscillation. |+| 6 | DONE | output | Open-drain charge-complete indicator (active low). Pulled low when the charge current falls below 10% of the programmed CC current, indicating end-of-charge; otherwise high-impedance. Sinks up to 10mA (VDONE=0.3V); leakage ≤1µA at 6V. Tie to GND if unused. |+| 7 | CHRG | output | Open-drain charge-in-progress indicator (active low). Pulled low while CN3153 is charging; otherwise high-impedance. Sinks up to 10mA (VCHRG=0.3V); leakage ≤1µA at 6V. Tie to GND if unused. |+| 8 | FB | input | Battery-voltage Kelvin sense input. Connect directly to the battery positive terminal to remove wiring/contact IR drop from the CV regulation loop. CV target is 4.2V (±1%); an optional resistor Rx from FB to BAT raises Vbat by Vbat = 4.2 + 3.61e-6 × Rx. IFB ≈ 3µA (typ) in normal charge; leaving FB floating forces trickle mode. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | ShangHai Consonance Elec |+| Package | ESOP-8 |+| Category | PMIC |+| Pins | 8 |++## Ordering variants++- `CN3153SOP8/PP`+- `CN3153SOP8`++## CAD (KiCad official)++- Symbol: `CN3153`+- 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/cn3153-datasheet.pdf) (11 pp, sha256 `cb36e3adf1c4bff4`, 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/cn3153-datasheet.pdf)

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