component
UCC28250PWR
Public Made by Adomby adom
Texas Instruments AC-DC Controllers And Regulators, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"name": "VSENSE",
"type": "input",
"description": "Output voltage sensing for prebias control, with an input voltage range of 0 to 3.3 V."
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{
"number": "2",
"name": "RT",
"type": "input",
"description": "Oscillator frequency set or synchronous clock input, with a recommended RT resistor range of 12.5 kΩ to 200 kΩ."
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{
"number": "3",
"name": "RAMP/CS",
"type": "input",
"description": "PWM ramp input (for voltage mode control) or current sense input (for current mode control), with a recommended voltage range of 0 to 2.7 V."
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"name": "ILIM",
"type": "input",
"description": "Current sense for cycle-by-cycle overcurrent protection; the current sense comparator terminates the output pulse when this pin exceeds 0.5 V."
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{
"number": "5",
"name": "EN",
"type": "input",
"description": "Device enable and disable, with an absolute maximum input voltage of 5.5 V."
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{
"number": "6",
"name": "OVP/OTP",
"type": "input",
"description": "Overvoltage and overtemperature protection pin, with an absolute maximum input voltage of 3.6 V."
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{
"number": "7",
"name": "VREF",
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"description": "3.3-V reference output, with a VREF bypass capacitor of 0.5 µF to 2 µF."
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{
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"description": "Error amplifier noninverting input, with a common-mode range of 0 to 3 V."
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"description": "Error amplifier inverting input, with a common-mode range of 0 to 3 V."
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{
"number": "11",
"name": "GND",
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"description": "Ground; all voltages are referenced to this pin unless otherwise noted."
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"name": "VDD",
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"description": "Bias supply input, with a recommended supply voltage of 4.7 V to 17 V and an absolute maximum of 20 V."
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"description": "0.2-A sink/source synchronous rectifier output."
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"description": "0.2-A sink/source primary switching output."
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"description": "Cycle-by-cycle current limit time delay and hiccup time setting, with an absolute maximum input voltage of 3.6 V."
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"name": "PS",
"type": "input",
"description": "Primary off to synchronous rectifier on dead-time set, with a resistor range of 5 kΩ to 250 kΩ."
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"description": "Synchronous rectifier off to primary on dead-time set, with a resistor range of 5 kΩ to 250 kΩ."
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"number": "20",
"name": "SS",
"type": "bidirectional",
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"min": -12,
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{
"name": "Open loop gain",
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"name": "COMP sink current",
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"min": 3,
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{
"name": "Nominal switching frequency at OUTA or OUTB set by RT resistor",
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"unit": "kHz",
"min": 185,
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"conditions": "RT/SYNC = 75 kΩ, RSP = 20 kΩ",
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"min": 85,
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"conditions": "fRT/SYNC = 2.5 MHz",
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"name": "Output voltage",
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"kind": "electrical",
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"min": 3.22,
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"kind": "electrical",
"unit": "mA",
"min": 12,
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{
"name": "ILIM cycle-by-cycle threshold",
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"unit": "V",
"min": 0.495,
"typ": 0.502,
"max": 0.509,
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{
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"min": 15,
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"conditions": "Exclude leading edge blanking",
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"typ": 60,
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"conditions": "leading edge blanking",
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{
"name": "Current limit shutdown delay timing program current",
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"min": 55,
"typ": 75,
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{
"name": "Hiccup restart threshold",
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"min": 0.25,
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"name": "RAMP/CS clamp voltage",
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"conditions": "10-V ramp charging voltage source with 40-kΩ current limiting resistor",
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{
"name": "OVP internal reference",
"symbol": "VOVP",
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"min": 0.66,
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"name": "OVP internal current",
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"min": 8.5,
"typ": 11,
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{
"name": "Primary output source resistance",
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"min": 12,
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"conditions": "IOUT = 20 mA",
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"name": "Synchronous rectifier output source resistance",
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