ME4057ASPG

@@ -0,0 +1,51 @@+# ME4057ASPG++**MICRONE** · Battery Management · SOIC-8-EP++ME4057ASPG from MICRONE, in a SOIC-8-EP. 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 wiper of a divider formed with the pack NTC thermistor. Charging is suspended when V_TEMP falls below ~45% V_CC or rises above ~80% V_CC. Tie to GND to disable the temperature-sense function. |+| 2 | PROG | bidirectional | Charge-current program and monitor pin. A resistor R_PROG from PROG to GND sets the fast-charge current per I_BAT = (V_PROG/R_PROG)*1100 (V_PROG ≈ 1 V in constant-current mode, 0.1 V in precharge). The pin voltage may also be measured to monitor instantaneous charge current. |+| 3 | GND | power_in | Device ground return. Connect to the system ground plane; the ESOP exposed pad should also be soldered to this ground for thermal dissipation. |+| 4 | VCC | power_in | Positive input supply (4.7 V - 6.5 V typical, 5 V nominal) from a USB port or wall adapter. When VCC drops within ~80 mV of V_BAT the device enters low-power sleep, dropping I_BAT to <2 µA. Bypass locally with a ceramic capacitor. |+| 5 | BAT | power_out | Battery connection pin. Sources the regulated charge current from the internal PMOS power FET (R_ON ≈ 650 mΩ) up to 1 A, and regulates to 4.2 V float voltage on the 'A' variant. Drain from the battery is <2 µA in disable/sleep modes. |+| 6 | STDBY | output | Open-drain charge-terminated status output (active-low, overlined /STDBY). Pulled low when charging has terminated (battery full); otherwise high impedance. Typically drives a green LED to VCC through a current-limit resistor. |+| 7 | CHRG | output | Open-drain charge-in-progress status output (active-low, overlined /CHRG). Pulled low while the battery is charging; goes to high impedance when charging terminates or the battery is out of temperature range. Typically drives a red LED to VCC. |+| 8 | CE | input | Chip-enable input, TTL/CMOS compatible. Drive high (or leave floating pulled up) to place the device in normal operating mode; drive low to force the ME4057 into disable (shutdown) mode. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | MICRONE |+| Package | SOIC-8-EP |+| Category | PMIC |+| Pins | 8 |++## Ordering variants++- `ME4057ASPGASPG`+- `ME4057ASPGASPG-A5`+- `ME4057ASPGBSPG`+- `ME4057ASPGDSPG`+- `ME4057ASPGESPG`++## CAD (KiCad official)++- Symbol: `ME4057ASPG`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8-EP (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [MICRONE datasheet](docs/me4057aspg-datasheet.pdf) (21 pp, sha256 `58a52d07736328ec`, 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/me4057aspg-datasheet.pdf)

@@ -0,0 +1,34 @@+{+  "slug": "me4057aspg",+  "version": "0.1.0",+  "type": "component",+  "description": "MICRONE Battery Management, SOIC-8-EP. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+  "tags": [+    "component",+    "pmic",+    "me4057aspg"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "me4057aspg.kicad_sym",+    "me4057aspg.kicad_mod",+    "me4057aspg.glb",+    "me4057aspg.step",+    "me4057aspg.lbr",+    "docs/hero.png",+    "docs/me4057aspg-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file