component
LM25066IAPSQ
Public Made by Adomby adom
Texas Instruments Surge Suppressors, WQFN-24(4x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"brief": "Texas Instruments Surge Suppressors, WQFN-24(4x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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"package": "WQFN-24(4x5)",
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"pins": [
{
"number": "1",
"name": "ADR2",
"type": "input",
"description": "SMBus address line 2, a 3-state address line to be connected to GND, VDD, or left floating."
},
{
"number": "2",
"name": "ADR1",
"type": "input",
"description": "SMBus address line 1, a 3-state address line to be connected to GND, VDD, or left floating."
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{
"number": "3",
"name": "ADR0",
"type": "input",
"description": "SMBus address line 0, a 3-state address line to be connected to GND, VDD, or left floating."
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{
"number": "4",
"name": "VDD",
"type": "power_out",
"description": "Internally sub-regulated 4.5V bias supply output; connect a 1 µF capacitor to ground for bypassing."
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{
"number": "5",
"name": "CL",
"type": "input",
"description": "Current limit range select: GND sets the nominal over-current threshold to 25mV, VDD sets it to 46mV."
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{
"number": "6",
"name": "CB",
"type": "input",
"description": "Circuit breaker range select: GND sets the trip point to 1.8 times the over-current threshold, VDD sets it to 3.6 times."
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{
"number": "7",
"name": "FB",
"type": "input",
"description": "Power Good feedback input; an external divider from OUT sets the PGD switching voltage with a 1.167V threshold and 24 µA hysteresis current source."
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{
"number": "8",
"name": "RETRY",
"type": "input",
"description": "Fault retry input: grounded continually retries power-up during a fault, connected to VDD latches off during a fault."
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{
"number": "9",
"name": "TIMER",
"type": "passive",
"description": "External capacitor pin that sets the insertion time delay, fault timeout period and restart timing."
},
{
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"description": "Power limit set; an external resistor, with the sense resistor RS, sets the maximum power dissipation allowed in the external MOSFET."
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{
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"type": "output",
"description": "Open-drain Power Good output, high when FB is above 1.167V and the input supply is within its under- and over-voltage thresholds; needs a pullup resistor."
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{
"number": "12",
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"description": "Output feedback connected to the external MOSFET source, used to determine MOSFET VDS for power limiting and to monitor the output voltage."
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{
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"description": "Gate drive output connected to the external MOSFET's gate."
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{
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"description": "Current sense input; the voltage across RS is measured from VIN to this pin and triggers current limit and the fault timer at the over-current threshold."
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{
"number": "15",
"name": "VIN",
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"description": "Positive supply input (2.9V to 17V operating); a small ceramic bypass capacitor close to the pin is recommended."
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{
"number": "16",
"name": "UVLO/EN",
"type": "input",
"description": "Under-voltage lockout input with 1.16V enable threshold and 23 µA hysteresis current source; also usable for remote shutdown."
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{
"number": "17",
"name": "OVLO",
"type": "input",
"description": "Over-voltage lockout input with 1.16V disable threshold and 23 µA hysteresis current source set by an external divider."
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{
"number": "18",
"name": "GND",
"type": "power_in",
"description": "Circuit ground."
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{
"number": "19",
"name": "SDA",
"type": "bidirectional",
"description": "SMBus data pin."
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{
"number": "20",
"name": "SCL",
"type": "input",
"description": "SMBus clock pin."
},
{
"number": "21",
"name": "SMBA",
"type": "output",
"description": "SMBus alert pin, active low."
},
{
"number": "22",
"name": "VREF",
"type": "power_out",
"description": "Internally generated precision 2.73V reference for analog to digital conversion; connect a 1 µF capacitor to ground."
},
{
"number": "23",
"name": "DIODE",
"type": "passive",
"description": "Connect to a diode-configured NPN transistor for temperature monitoring."
},
{
"number": "24",
"name": "VAUX",
"type": "input",
"description": "Auxiliary voltage input for telemetry from an external source, full scale input of 1.16V."
},
{
"number": "25",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
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],
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"at": "2026-10-23T11:27:18"
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"specs": {
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"Package": "WQFN-24(4x5)",
"Category": "TVS/Fuse/Board Level Protection",
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"name": "ESD Human Body Model",
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{
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{
"name": "Input Current, enabled",
"symbol": "IIN-EN",
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"unit": "mA",
"min": null,
"typ": 5.8,
"max": 8,
"conditions": "UVLO = 2V and OVLO = 0.7V",
"source_page": 4,
"source": "datasheet"
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{
"name": "Power On Reset threshold at VIN",
"symbol": "POR",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 2.6,
"max": 2.8,
"conditions": "VIN increasing",
"source_page": 4,
"source": "datasheet"
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{
"name": "VDD regulator voltage",
"symbol": "VDD",
"kind": "electrical",
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"min": 4.3,
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"max": 4.7,
"conditions": "IVDD = 5mA, VIN = 12V",
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{
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"conditions": "IVDD = 5mA, VIN = 4.5V",
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{
"name": "VDD Current Limit",
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"min": 25,
"typ": 45,
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"conditions": "",
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{
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"typ": 1.16,
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"conditions": "VUVLO Falling",
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{
"name": "UVLO hysteresis current",
"symbol": "UVLOHYS",
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{
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"conditions": "UVLO = 3V",
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{
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"conditions": "VOVLO rising",
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{
"name": "OVLO hysteresis current",
"symbol": "OVLOHYS",
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"min": -28,
"typ": -23,
"max": -18,
"conditions": "OVLO = 1V",
"source_page": 4,
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{
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"max": 1,
"conditions": "OVLO = 1V",
"source_page": 4,
"source": "datasheet"
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{
"name": "PGD Output low voltage",
"symbol": "PGDVOL",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 25,
"max": 60,
"conditions": "ISINK = 2 mA",
"source_page": 4,
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{
"name": "PGD Off leakage current",
"symbol": "PGDIOH",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": 1,
"conditions": "VPGD = 17V",
"source_page": 4,
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{
"name": "FB Threshold",
"symbol": "FBTH",
"kind": "electrical",
"unit": "V",
"min": 1.141,
"typ": 1.167,
"max": 1.19,
"conditions": "VFB rising",
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{
"name": "FB Hysteresis Current",
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"min": -31,
"typ": -24,
"max": -18,
"conditions": "",
"source_page": 5,
"source": "datasheet"
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{
"name": "FB Off Leakage Current",
"symbol": "FBLEAK",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": 1,
"conditions": "VFB = 1V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Power limit sense voltage (VIN-SENSE)",
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"kind": "electrical",
"unit": "mV",
"min": 9,
"typ": 12.5,
"max": 15,
"conditions": "SENSE-OUT = 12V, RPWR = 25 kΩ",
"source_page": 5,
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{
"name": "GATE Source current",
"symbol": "IGATE",
"kind": "electrical",
"unit": "µA",
"min": -28,
"typ": -22,
"max": -16,
"conditions": "Normal operation",
"source_page": 5,
"source": "datasheet"
},
{
"name": "GATE Fault Sink current",
"symbol": "IGATE",
"kind": "electrical",
"unit": "mA",
"min": 1.5,
"typ": 2,
"max": 2.5,
"conditions": "UVLO = 1V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "GATE POR Circuit Breaker sink current",
"symbol": "IGATE",
"kind": "electrical",
"unit": "mA",
"min": 105,
"typ": 190,
"max": 275,
"conditions": "VIN - SENSE = 150 mV or VIN < RPOR, VGATE = 5V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Gate output voltage in normal operation",
"symbol": "VGATE",
"kind": "electrical",
"unit": "V",
"min": 17,
"typ": 18.8,
"max": 20.3,
"conditions": "GATE voltage with respect to ground",
"source_page": 5,
"source": "datasheet"
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{
"name": "OUT bias current, enabled",
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"kind": "electrical",
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"min": null,
"typ": null,
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"conditions": "OUT = VIN, normal operation",
"source_page": 5,
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{
"name": "Current limit threshold voltage",
"symbol": "VCL",
"kind": "electrical",
"unit": "mV",
"min": 22.5,
"typ": 25,
"max": 27.5,
"conditions": "CL = GND",
"source_page": 5,
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{
"name": "Current limit threshold voltage",
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"typ": 25,
"max": 27,
"conditions": "CL = GND, TJ = 10°C to 85°C",
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{
"name": "Current limit threshold voltage",
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"conditions": "CL = VDD",
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{
"name": "Circuit breaker threshold voltage x 1.8",
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"typ": 45,
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"conditions": "VIN - SENSE, CL = GND, CB = GND",
"source_page": 5,
"source": "datasheet"
},
{
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