FBC4056YESOP8G

@@ -0,0 +1,49 @@+# FBC4056YESOP8G++**Full Way** · Battery Management · ESOP-8++FBC4056YESOP8G from Full Way, 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 | TS | input | Battery temperature sense/protection input. Connect through an external NTC thermistor and pull-up divider to VCC. Chip suspends charging when V(TS) is outside the OTPL=45%*VCC to OTPH=80%*VCC window. Tie TS to GND to disable the temperature protection function. |+| 2 | PROG | input | Charge-current program pin. A resistor R_PROG from PROG to GND sets the constant-current charge current: I_BAT = 1000V / R_PROG (minimum R_PROG = 0.8 kOhm). V(PROG) is regulated to 1V in constant-current mode and 0.1V in trickle-charge mode; used internally for C/10 charge termination detection. |+| 3 | GND | power_in | Power/signal ground return for the charger. |+| 4 | VCC | power_in | Charger positive supply input, typically 4.5V-5.5V (5V nominal, 8V absolute max). Bypass with 2.2uF to GND. Charging starts only when VCC is above the UVLO threshold (~3.73V rising) and at least 144mV above V(BAT); the part enters low-power sleep mode when VCC falls below UVLO or within 94mV of V(BAT). |+| 5 | VBAT | power_out | Battery positive terminal. Supplies up to 1000mA charge current and regulates to 4.2V float voltage. In standby or with VCC absent, leakage from this pin is <3uA. Automatic re-charge cycle starts when V(BAT) falls below ~4.0V (float minus 210mV). |+| 6 | STDBY | output | Charge-complete (standby) status indicator, open-drain. Pulled low (V_OL <= 0.3V at 5mA) when charging has terminated to illuminate the 'done' LED; high-impedance while charging is in progress. |+| 7 | CHRG | output | Charge-in-progress status indicator, open-drain. Pulled low (V_OL <= 0.3V at 5mA) while the battery is charging; high-impedance when charging is complete. If no battery is connected the pin blinks to indicate a missing/poor battery connection. Leave floating or tie to GND if unused. |+| 8 | CE | input | Chip enable. Tie to VCC (or leave floating) for normal charging operation; tie to GND to disable the charger. Absolute range -0.3V to 8V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Full Way |+| Package | ESOP-8 |+| Category | PMIC |+| Pins | 8 |++## Ordering variants++- `FBC4056YESOP8GYESOP8G`+- `FBC4056YESOP8GYESOP8G/TR`++## CAD (KiCad official)++- Symbol: `FBC4056YESOP8G`+- 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:** [Full Way datasheet](docs/fbc4056yesop8g-datasheet.pdf) (9 pp, sha256 `1becd0512c73fc8f`, 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/fbc4056yesop8g-datasheet.pdf)

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