component
AD4057
Public Made by Adomby adom
IDCHIP Battery Management, SOT-23-6. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
← Commit history
README.mdadded+46@@ -0,0 +1,46 @@+# AD4057++**IDCHIP** · Battery Management · SOT-23-6++AD4057 from IDCHIP, in a SOT-23-6. 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 | Open-drain charge status output. Pulled low by an internal switch while charging is in progress; otherwise high-impedance. Typically drives an external LED (with a series resistor to VCC). |+| 2 | GND | power_in | Device ground / power return. |+| 3 | BAT | power_out | Charge current output to the single-cell Li-ion battery. An internal precision resistor divider regulates the final float voltage to 4.2 V (±1%). The divider is disconnected in shutdown mode, reducing battery drain to <2 uA. Supplies up to 600 mA charge current. |+| 4 | VCC | power_in | Input supply for the charger. Operating range 4.25 V to 6.5 V (abs max 4.2-5.5 V range noted; recommended VCC = 4.5-6.0 V). Should be bypassed with at least a 1 uF capacitor. When VCC falls to within 30 mV of VBAT, the part enters shutdown and IBAT drops below 2 uA. |+| 5 | STDBY | output | Open-drain charge-complete indicator. Pulled low by an internal switch when the charge cycle terminates (C/10); otherwise high-impedance. Typically drives an external LED. |+| 6 | PROG | bidirectional | Charge-current program, monitor, and shutdown pin. A 1% resistor RPROG from PROG to GND sets the fast-charge current: IBAT = (VPROG / RPROG) * 1000, with VPROG = 1.0 V typ in constant-current mode. The pin voltage also serves as an analog current-monitor readout. Floating RPROG (open) allows an internal 2.5 uA pull-up to raise PROG past the 1.22 V shutdown threshold, entering shutdown (ICC ≈ 45 uA); reconnecting RPROG resumes normal operation. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | IDCHIP |+| Package | SOT-23-6 |+| Category | PMIC |+| Pins | 6 |++## Ordering variants++- `AD4057`++## CAD (KiCad official)++- Symbol: `AD4057`+- Footprint: `Package_TO_SOT_SMD:SOT-23-6`+- 3D model: SOT-23-6 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [IDCHIP datasheet](docs/ad4057-datasheet.pdf) (6 pp, sha256 `c1f596377f986ede`, 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/ad4057-datasheet.pdf)
page.jsonadded+34@@ -0,0 +1,34 @@+{+ "slug": "ad4057",+ "version": "0.1.0",+ "type": "component",+ "description": "IDCHIP Battery Management, SOT-23-6. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "pmic",+ "ad4057"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "ad4057.kicad_sym",+ "ad4057.kicad_mod",+ "ad4057.glb",+ "ad4057.step",+ "ad4057.lbr",+ "docs/hero.png",+ "docs/ad4057-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "visibility": "public",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}