component
BQ25890RTWR
Public Made by Adomby adom
Texas Instruments Battery Management, WQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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page.json+17−14@@ -38,7 +38,7 @@ "number": "1", "name": "VBUS", "type": "power_in",- "description": "Charger input voltage (3.9V to 14V) with integrated reverse-blocking MOSFET to PMID; place 1\u00b5F ceramic capacitor from VBUS to PGND close to IC."+ "description": "Charger input voltage (3.9V to 14V) with integrated reverse-blocking MOSFET to PMID; place 1µF ceramic capacitor from VBUS to PGND close to IC." }, { "number": "2",@@ -62,19 +62,19 @@ "number": "5", "name": "SCL", "type": "input",- "description": "I2C clock open-drain input; connect to logic rail (1.8V-3.3V) through 10k\u03a9 pull-up resistor."+ "description": "I2C clock open-drain input; connect to logic rail (1.8V-3.3V) through 10kΩ pull-up resistor." }, { "number": "6", "name": "SDA", "type": "bidirectional",- "description": "I2C data open-drain bidirectional line; connect to logic rail (1.8V-3.3V) through 10k\u03a9 pull-up resistor."+ "description": "I2C data open-drain bidirectional line; connect to logic rail (1.8V-3.3V) through 10kΩ pull-up resistor." }, { "number": "7", "name": "INT", "type": "output",- "description": "Open-drain interrupt output delivering active-LOW 256\u00b5s pulse for charger status changes and fault events; connect via 10k\u03a9 pull-up."+ "description": "Open-drain interrupt output delivering active-LOW 256µs pulse for charger status changes and fault events; connect via 10kΩ pull-up." }, { "number": "8",@@ -110,25 +110,25 @@ "number": "13", "name": "BAT", "type": "power_in",- "description": "Battery positive terminal connection with integrated BATFET between BAT and SYS; place 10\u00b5F capacitor close to pin."+ "description": "Battery positive terminal connection with integrated BATFET between BAT and SYS; place 10µF capacitor close to pin." }, { "number": "14", "name": "BAT", "type": "power_in",- "description": "Battery positive terminal connection with integrated BATFET between BAT and SYS; place 10\u00b5F capacitor close to pin."+ "description": "Battery positive terminal connection with integrated BATFET between BAT and SYS; place 10µF capacitor close to pin." }, { "number": "15", "name": "SYS", "type": "power_out",- "description": "System output regulated above minimum voltage (3.0V-3.7V) by converter even with depleted battery; place 20\u00b5F capacitor close to pin."+ "description": "System output regulated above minimum voltage (3.0V-3.7V) by converter even with depleted battery; place 20µF capacitor close to pin." }, { "number": "16", "name": "SYS", "type": "power_out",- "description": "System output regulated above minimum voltage (3.0V-3.7V) by converter even with depleted battery; place 20\u00b5F capacitor close to pin."+ "description": "System output regulated above minimum voltage (3.0V-3.7V) by converter even with depleted battery; place 20µF capacitor close to pin." }, { "number": "17",@@ -146,31 +146,31 @@ "number": "19", "name": "SW", "type": "output",- "description": "PWM switching node connected to inductor output and LSFET source; place 0.047\u00b5F bootstrap capacitor from SW to BTST."+ "description": "PWM switching node connected to inductor output and LSFET source; place 0.047µF bootstrap capacitor from SW to BTST." }, { "number": "20", "name": "SW", "type": "output",- "description": "PWM switching node connected to inductor output and LSFET source; place 0.047\u00b5F bootstrap capacitor from SW to BTST."+ "description": "PWM switching node connected to inductor output and LSFET source; place 0.047µF bootstrap capacitor from SW to BTST." }, { "number": "21", "name": "BTST", "type": "power_out",- "description": "Bootstrap supply for high-side gate driver powered by internal bootstrap diode from SW node; connect 0.047\u00b5F bootstrap capacitor."+ "description": "Bootstrap supply for high-side gate driver powered by internal bootstrap diode from SW node; connect 0.047µF bootstrap capacitor." }, { "number": "22", "name": "REGN", "type": "power_out",- "description": "Internal LDO regulated output (5.6V-6.4V) powering gate drivers and TS bias; connect 4.7\u00b5F capacitor from REGN to analog GND close to IC."+ "description": "Internal LDO regulated output (5.6V-6.4V) powering gate drivers and TS bias; connect 4.7µF capacitor from REGN to analog GND close to IC." }, { "number": "23", "name": "PMID", "type": "output",- "description": "Power management mid-point connected to RBFET drain and HSFET drain; place 1\u00b5F on VBUS-PGND and remaining input capacitance on PMID-PGND."+ "description": "Power management mid-point connected to RBFET drain and HSFET drain; place 1µF on VBUS-PGND and remaining input capacitance on PMID-PGND." }, { "number": "24",@@ -263,5 +263,8 @@ "docs/bq25890rtwr-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ]+ ],+ "visibility": {+ "public": true+ } }