component
WS4054
Public Made by Adomby adom
WPMtek Wei Pan Microelectronics Battery Management, SOT-23-5L. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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page.json+7−4@@ -32,7 +32,7 @@ "number": "1", "name": "CHRG", "type": "output",- "description": "Open-drain charge status indicator. Pulled low (LED on) during an active charge cycle; high-Z (LED off) when charging terminates, VDD is in UVLO, or VBAT > VDD. Blinks when VDD is valid, BAT is connected only to a ~2.2 uF capacitor and no battery is present. VCHRGL \u2264 100 mV at ICHRG = 5 mA. Tie to ground through a series LED + ~1 k\u03a9 resistor from VIN, or leave unconnected if unused."+ "description": "Open-drain charge status indicator. Pulled low (LED on) during an active charge cycle; high-Z (LED off) when charging terminates, VDD is in UVLO, or VBAT > VDD. Blinks when VDD is valid, BAT is connected only to a ~2.2 uF capacitor and no battery is present. VCHRGL ≤ 100 mV at ICHRG = 5 mA. Tie to ground through a series LED + ~1 kΩ resistor from VIN, or leave unconnected if unused." }, { "number": "2",@@ -44,7 +44,7 @@ "number": "3", "name": "BAT", "type": "power_out",- "description": "Charge current output to the single-cell Li-ion battery. Regulates to VFLOAT = 4.200 V \u00b142 mV in constant-voltage mode. Sources programmed constant current (up to 500 mA) in CC mode and ~1/10 of the programmed current as trickle when VBAT < VTRKL (2.9 V). Recharge cycle restarts when VBAT falls ~150 mV below VFLOAT (\u2248 4.05 V). Bypass with ~1-10 uF ceramic capacitor to GND."+ "description": "Charge current output to the single-cell Li-ion battery. Regulates to VFLOAT = 4.200 V ±42 mV in constant-voltage mode. Sources programmed constant current (up to 500 mA) in CC mode and ~1/10 of the programmed current as trickle when VBAT < VTRKL (2.9 V). Recharge cycle restarts when VBAT falls ~150 mV below VFLOAT (≈ 4.05 V). Bypass with ~1-10 uF ceramic capacitor to GND." }, { "number": "4",@@ -56,7 +56,7 @@ "number": "5", "name": "PROG", "type": "passive",- "description": "Charge-current program pin. Connect a resistor RPROG from PROG to GND to set the fast-charge current: IBAT \u2248 1000 / RPROG (A\u00b7\u03a9), e.g. 2 k\u03a9 \u2192 500 mA, 4 k\u03a9 \u2192 250 mA, 10 k\u03a9 \u2192 100 mA, 20 k\u03a9 \u2192 50 mA. Servos to VPROG2 \u2248 1.00 V in constant-current mode. Floating or open PROG puts the part into standby; termination is detected when the PROG voltage falls below 100 mV for TDELAY."+ "description": "Charge-current program pin. Connect a resistor RPROG from PROG to GND to set the fast-charge current: IBAT ≈ 1000 / RPROG (A·Ω), e.g. 2 kΩ → 500 mA, 4 kΩ → 250 mA, 10 kΩ → 100 mA, 20 kΩ → 50 mA. Servos to VPROG2 ≈ 1.00 V in constant-current mode. Floating or open PROG puts the part into standby; termination is detected when the PROG voltage falls below 100 mV for TDELAY." } ], "provenance": {@@ -126,5 +126,8 @@ "docs/ws4054-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ]+ ],+ "visibility": {+ "public": true+ } }