component
TPS25944ARVCR
Public Made by Adomby adom
Texas Instruments Monitors & Reset Circuits, WQFN-20-EP(3x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"package": "WQFN-20-EP(3x4)",
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"category": "Power Management ICs",
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{
"number": "1",
"name": "DMODE",
"type": "input",
"description": "Diode mode control pin, where a high level activates the non-ideal diode mode; EN, OVP, DMODE, OUT, PGTH, PGOOD and FLT are rated 0 V to 18 V recommended and 20 V absolute maximum."
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{
"number": "2",
"name": "PGOOD",
"type": "output",
"description": "Active-high open-drain power-good output that goes high when PGTH has crossed its threshold, with a 10 mA maximum sink current."
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{
"number": "3",
"name": "PGTH",
"type": "input",
"description": "Positive input of the PGOOD comparator, rated 0 V to 18 V recommended."
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{
"number": "4",
"name": "OUT",
"type": "power_out",
"description": "Power output of the device, requiring at least 0.1 µF of external capacitance and rated 0 V to 18 V recommended."
},
{
"number": "5",
"name": "OUT",
"type": "power_out",
"description": "Power output of the device (grouped with pins 4 to 8 in the datasheet table), requiring at least 0.1 µF of external capacitance."
},
{
"number": "6",
"name": "OUT",
"type": "power_out",
"description": "Power output of the device (grouped with pins 4 to 8 in the datasheet table), requiring at least 0.1 µF of external capacitance."
},
{
"number": "7",
"name": "OUT",
"type": "power_out",
"description": "Power output of the device (grouped with pins 4 to 8 in the datasheet table), requiring at least 0.1 µF of external capacitance."
},
{
"number": "8",
"name": "OUT",
"type": "power_out",
"description": "Power output of the device (grouped with pins 4 to 8 in the datasheet table), requiring at least 0.1 µF of external capacitance."
},
{
"number": "9",
"name": "IN",
"type": "power_in",
"description": "Power input and supply voltage, recommended 2.7 V to 18 V with 20 V maximum (22 V for 10 ms transient)."
},
{
"number": "10",
"name": "IN",
"type": "power_in",
"description": "Power input and supply voltage (grouped with pins 9 to 13 in the datasheet table), recommended 2.7 V to 18 V."
},
{
"number": "11",
"name": "IN",
"type": "power_in",
"description": "Power input and supply voltage (grouped with pins 9 to 13 in the datasheet table), recommended 2.7 V to 18 V."
},
{
"number": "12",
"name": "IN",
"type": "power_in",
"description": "Power input and supply voltage (grouped with pins 9 to 13 in the datasheet table), recommended 2.7 V to 18 V."
},
{
"number": "13",
"name": "IN",
"type": "power_in",
"description": "Power input and supply voltage (grouped with pins 9 to 13 in the datasheet table), recommended 2.7 V to 18 V."
},
{
"number": "14",
"name": "EN/UVLO",
"type": "input",
"description": "Sets the programmable undervoltage lockout threshold; an undervoltage event opens the internal FET and asserts FLT, and pulling it to GND resets the fault latch on the TPS25942L/TPS25944L."
},
{
"number": "15",
"name": "OVP",
"type": "input",
"description": "Sets the programmable overvoltage protection threshold; an overvoltage event opens the internal FET and asserts FLT to indicate overvoltage."
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{
"number": "16",
"name": "GND",
"type": "power_in",
"description": "Ground pin, which must be connected to the exposed PowerPAD and then to a PCB ground plane using multiple vias."
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{
"number": "17",
"name": "ILIM",
"type": "bidirectional",
"description": "A resistor from this pin to GND sets the overload and short-circuit current limit, with 16.9 kΩ to 150 kΩ recommended and 3 V maximum on the pin."
},
{
"number": "18",
"name": "dVdT",
"type": "bidirectional",
"description": "A capacitor from this pin to GND sets the output voltage ramp rate, with 470 nF maximum recommended and 10 mA maximum sink current."
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{
"number": "19",
"name": "IMON",
"type": "output",
"description": "Sources a scaled-down ratio of the internal FET current, and a resistor from this pin to GND converts it to a proportional voltage for analog current monitoring, rated 0 V to 6 V recommended."
},
{
"number": "20",
"name": "FLT",
"type": "output",
"description": "Open-drain fault indicator that goes low for undervoltage, overvoltage, reverse voltage, circuit breaker timeout (TPS25944 only) and thermal shutdown, rated 0 V to 18 V recommended."
},
{
"number": "21",
"name": "PowerPAD",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
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"exposed pad 21 added from the footprint"
],
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{
"name": "Resistance ILIM",
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"min": 16.9,
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{
"name": "Operating junction temperature",
"symbol": "TJ",
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"min": -40,
"typ": 25,
"max": 125,
"conditions": "",
"source_page": 6,
"source": "datasheet"
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{
"name": "Operating input voltage",
"symbol": "V(IN)",
"kind": "electrical",
"unit": "V",
"min": 2.7,
"typ": null,
"max": 18,
"conditions": "",
"source_page": 7,
"source": "datasheet"
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{
"name": "Internal UVLO threshold, rising",
"symbol": "V(UVR)",
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"unit": "V",
"min": 2.2,
"typ": 2.3,
"max": 2.4,
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{
"name": "Internal UVLO hysteresis",
"symbol": "V(UVRhys)",
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"unit": "mV",
"min": 105,
"typ": 116,
"max": 125,
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"source": "datasheet"
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{
"name": "Supply current, enabled",
"symbol": "IQ(ON)",
"kind": "electrical",
"unit": "µA",
"min": 140,
"typ": 210,
"max": 300,
"conditions": "V(EN/UVLO) = 2 V, V(IN) = 3 V",
"source_page": 7,
"source": "datasheet"
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{
"name": "Supply current, enabled",
"symbol": "IQ(ON)",
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"typ": 199,
"max": 260,
"conditions": "V(EN/UVLO) = 2 V, V(IN) = 12 V",
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{
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"typ": 202,
"max": 270,
"conditions": "V(EN/UVLO) = 2 V, V(IN) = 18 V",
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{
"name": "Supply current, disabled",
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"max": 15,
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{
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"conditions": "V(EN/UVLO) = 0 V, V(IN) = 12 V",
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{
"name": "Supply current, disabled",
"symbol": "IQ(OFF)",
"kind": "electrical",
"unit": "µA",
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"typ": 18.5,
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"conditions": "V(EN/UVLO) = 0 V, V(IN) = 18 V",
"source_page": 7,
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{
"name": "EN/UVLO threshold voltage, rising",
"symbol": "V(ENR)",
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{
"name": "EN/UVLO threshold voltage, falling",
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"min": 0.9,
"typ": 0.92,
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{
"name": "EN threshold voltage for low IQ shutdown, falling",
"symbol": "V(SHUTF)",
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"min": 0.3,
"typ": 0.47,
"max": 0.63,
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{
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"min": 0.97,
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"max": 1.01,
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{
"name": "Overvoltage threshold voltage, falling",
"symbol": "V(OVPF)",
"kind": "electrical",
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"min": 0.9,
"typ": 0.92,
"max": 0.94,
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"source": "datasheet"
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{
"name": "DMODE threshold voltage, rising",
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"min": 1.6,
"typ": 1.85,
"max": 2,
"conditions": "",
"source_page": 7,
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{
"name": "DMODE threshold voltage, falling",
"symbol": "V(DMODE)",
"kind": "electrical",
"unit": "V",
"min": 0.8,
"typ": 0.96,
"max": 1.1,
"conditions": "",
"source_page": 7,
"source": "datasheet"
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{
"name": "DMODE input leakage current",
"symbol": "I(DMODE)",
"kind": "electrical",
"unit": "µA",
"min": 0.6,
"typ": 1,
"max": 1.25,
"conditions": "0.2 V ≤ V(DMODE) ≤ 18 V",
"source_page": 7,
"source": "datasheet"
},
{
"name": "dVdT charging current",
"symbol": "I(dVdT)",
"kind": "electrical",
"unit": "µA",
"min": 0.85,
"typ": 1,
"max": 1.15,
"conditions": "V(dVdT) = 0 V",
"source_page": 7,
"source": "datasheet"
},
{
"name": "dVdT discharging resistance",
"symbol": "R(dVdT)",
"kind": "electrical",
"unit": "Ω",
"min": 16,
"typ": null,
"max": 24,
"conditions": "EN/UVLO = 0 V, I(dVdT) = 10 mA sinking",
"source_page": 7,
"source": "datasheet"
},
{
"name": "dVdT maximum capacitor voltage",
"symbol": "V(dVdTmax)",
"kind": "electrical",
"unit": "V",
"min": 2.6,
"typ": 2.88,
"max": 3.1,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "dVdT to OUT gain",
"symbol": "GAIN(dVdT)",
"kind": "electrical",
"unit": "V/V",
"min": 11.65,
"typ": 11.9,
"max": 12.05,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Current limit, R(ILIM) = 150 kΩ",
"symbol": "I(FAULT)",
"kind": "electrical",
"unit": "A",
"min": 0.53,
"typ": 0.58,
"max": 0.63,
"conditions": "R(ILIM) = 150 kΩ, (V(IN) – V(OUT)) = 1 V",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Current limit, R(ILIM) = 88.7 kΩ",
"symbol": "I(FAULT)",
"kind": "electrical",
"unit": "A",
"min": 0.9,
"typ": 0.99,
"max": 1.07,
"conditions": "R(ILIM) = 88.7 kΩ, (V(IN) – V(OUT)) = 1 V",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Current limit, R(ILIM) = 42.2 kΩ",
"symbol": "I(FAULT)",
"kind": "electrical",
"unit": "A",
"min": 1.92,
"typ": 2.08,
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