component
TP4054
Public Made by Adomby adom
UMW Battery Management, SOT-23-5L. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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page.json+4−7@@ -44,19 +44,19 @@ "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": {@@ -120,8 +120,5 @@ "docs/tp4054-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ],- "visibility": {- "public": true- }+ ] }