← Commit history

tp4054: provenance cleanup

Ray ·11088ad75e ·1mo ago ·parent c71bbd8
2 files changed +14−17
README.md+4−4
@@ -1,8 +1,8 @@ # TP4054 -**UMW Youtai Semiconductor Co   Ltd** · Battery Management · SOT-23-5L+**UMW** · Battery Management · SOT-23-5L -TP4054 from UMW Youtai Semiconductor Co   Ltd, in a SOT-23-5L. Pinout and pin descriptions extracted from the datasheet (via LCSC) by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.+TP4054 from UMW, in a SOT-23-5L. Pinout and pin descriptions extracted from the datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.  ## Pinout @@ -18,7 +18,7 @@ TP4054 from UMW Youtai Semiconductor Co   Ltd, in a SOT-23-5L. Pinout and pin de  | Parameter | Value | |---|---|-| Manufacturer | UMW Youtai Semiconductor Co   Ltd |+| Manufacturer | UMW | | Package | SOT-23-5L | | Category | PMIC | | Pins | 5 |@@ -33,7 +33,7 @@ TP4054 from UMW Youtai Semiconductor Co   Ltd, in a SOT-23-5L. Pinout and pin de  Data extracted from the manufacturer datasheet, not a distributor listing: -- **Datasheet:** [UMW Youtai Semiconductor Co   Ltd datasheet](https://datasheet.lcsc.com/datasheet/pdf/4345650c754ecc5e3486650b41566326.pdf) (15 pp, sha256 `ead405fcfc136cf9`, retrieved 2026-08-17, tier: lcsc)+- **Datasheet:** [UMW datasheet](docs/tp4054-datasheet.pdf) (15 pp, sha256 `ead405fcfc136cf9`, 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). 
page.json+10−13
@@ -3,7 +3,7 @@   "type": "component",   "slug": "tp4054",   "title": "TP4054",-  "brief": "UMW Youtai Semiconductor Co   Ltd Battery Management, SOT-23-5L. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+  "brief": "UMW Battery Management, SOT-23-5L. Datasheet-verified pinout, KiCad symbol/footprint/3D.",   "version": "0.1.0",   "license": "CC-BY-SA-4.0",   "tags": [@@ -13,12 +13,12 @@   ],   "component": {     "mpn": "TP4054",-    "manufacturer": "UMW Youtai Semiconductor Co   Ltd",+    "manufacturer": "UMW",     "package": "SOT-23-5L",     "pin_count": 5,     "category": "PMIC",     "subcategory": "Battery Management",-    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/4345650c754ecc5e3486650b41566326.pdf",+    "datasheet": "docs/tp4054-datasheet.pdf",     "parts": {       "symbol": "tp4054.kicad_sym",       "footprint": "tp4054.kicad_mod",@@ -44,25 +44,25 @@         "number": "3",         "name": "BAT",         "type": "power_out",-        "description": "Charging current output to the Li-ion cell. Regulates the battery float voltage to 4.2V (±1%) and sources the programmed charge current (up to 600mA absolute max). Under battery-reverse (V_BAT = -4V) an internal ~0.7mA current flows to GND to protect the ESD diode. Absolute max V_BAT = 7V."+        "description": "Charging current output to the Li-ion cell. Regulates the battery float voltage to 4.2V (\u00b11%) and sources the programmed charge current (up to 600mA absolute max). Under battery-reverse (V_BAT = -4V) an internal ~0.7mA current flows to GND to protect the ESD diode. Absolute max V_BAT = 7V."       },       {         "number": "4",         "name": "VCC",         "type": "power_in",-        "description": "Positive supply input, 4.25V-6.5V (absolute max V_SS + 7V). Requires at least a 1µF bypass capacitor to GND. When V(BAT) - V(VCC) drops below ~30mV the part enters shutdown and I(BAT) falls below ~2µA."+        "description": "Positive supply input, 4.25V-6.5V (absolute max V_SS + 7V). Requires at least a 1\u00b5F bypass capacitor to GND. When V(BAT) - V(VCC) drops below ~30mV the part enters shutdown and I(BAT) falls below ~2\u00b5A."       },       {         "number": "5",         "name": "PROG",         "type": "bidirectional",-        "description": "Charge-current programming, charge-current monitoring, and shutdown pin. A resistor R_PROG from PROG to GND sets I_BAT: I_BAT = (V_PROG / R_PROG) × 1000, with V_PROG ≈ 1V in constant-current mode (e.g. R_PROG = 2kΩ → ~500mA, 10kΩ → ~100mA). A 2µA pull-up allows the pin to be pulled high (>1.21V) to shut the charger down (I_CC drops to ~25µA). Absolute max V_PROG = V_SS ± 0.3V nominal / max current 800µA."+        "description": "Charge-current programming, charge-current monitoring, and shutdown pin. A resistor R_PROG from PROG to GND sets I_BAT: I_BAT = (V_PROG / R_PROG) \u00d7 1000, with V_PROG \u2248 1V in constant-current mode (e.g. R_PROG = 2k\u03a9 \u2192 ~500mA, 10k\u03a9 \u2192 ~100mA). A 2\u00b5A pull-up allows the pin to be pulled high (>1.21V) to shut the charger down (I_CC drops to ~25\u00b5A). Absolute max V_PROG = V_SS \u00b1 0.3V nominal / max current 800\u00b5A."       }     ],     "provenance": {       "extractor": "ds2sf",       "datasheet": {-        "url": "https://datasheet.lcsc.com/datasheet/pdf/4345650c754ecc5e3486650b41566326.pdf",+        "url": "docs/tp4054-datasheet.pdf",         "pages": 15,         "sha256": "ead405fcfc136cf9",         "source_tier": "lcsc"@@ -82,7 +82,7 @@   },   "metadata": {     "specs": {-      "Manufacturer": "UMW Youtai Semiconductor Co   Ltd",+      "Manufacturer": "UMW",       "Package": "SOT-23-5L",       "Category": "PMIC",       "Pins": "5"@@ -98,7 +98,7 @@   "discovery_triggers": [     "tp4054"   ],-  "discovery_pitch": "TP4054 (UMW Youtai Semiconductor Co   Ltd) component page with datasheet-verified CAD.",+  "discovery_pitch": "TP4054 (UMW) component page with datasheet-verified CAD.",   "author": {     "name": "Ray",     "email": "[email protected]"@@ -120,8 +120,5 @@     "docs/tp4054-datasheet.pdf",     "viewers/symbol.html",     "viewers/footprint.html"-  ],-  "visibility": {-    "public": true-  }+  ] }\ No newline at end of file