component
LP5861TRSMR
Public Made by Adomby adom
TI(德州仪器) , VQFN-32-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "lp5861trsmr",
"title": "LP5861TRSMR",
"brief": "TI(德州仪器) , VQFN-32-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
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"ic",
"lp5861trsmr",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "LP5861TRSMR",
"manufacturer": "TI(德州仪器)",
"package": "VQFN-32-EP(4x4)",
"pin_count": 33,
"category": "IC",
"subcategory": "IC",
"datasheet": "https://www.ti.com.cn/cn/lit/ds/symlink/lp5861t.pdf?ts=1729044189629&ref_url=https%253A%252F%252Fwww.ti.com.cn%252Fsitesearch%252Fzh-cn%252Fdocs%252Funiversalsearch.tsp%253FlangPref%253Dzh-CN%2526nr%253D11%2526searchTerm%253DLP5861TRSMR",
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"footprint": "lp5861trsmr.kicad_mod",
"model_3d": "lp5861trsmr-hero.glb",
"model_3d_plain": "lp5861trsmr-etched.glb",
"model_3d_step": "lp5861trsmr-etched.step",
"model_3d_step_plain": "lp5861trsmr.step",
"lbr": "lp5861trsmr.lbr"
},
"distributor_links": {
"lcsc": "C20415993"
},
"distributor_check": {
"checked_at": "2026-10-22T22:52:59Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "deferred",
"error": "shared DigiKey quota guard: 877 calls left today"
},
"mouser": {
"pn": null,
"status": "quota"
}
},
"pins": [
{
"number": "1",
"name": "VCC",
"type": "power_in",
"description": "Device supply (2.7 V to 5.5 V); a 1 µF capacitor to GND must be placed as close to the device as possible."
},
{
"number": "2",
"name": "CS0",
"type": "output",
"description": "Current sink 0; can be left floating when not used."
},
{
"number": "3",
"name": "CS1",
"type": "output",
"description": "Current sink 1; can be left floating when not used."
},
{
"number": "4",
"name": "CS2",
"type": "output",
"description": "Current sink 2; can be left floating when not used."
},
{
"number": "5",
"name": "CS3",
"type": "output",
"description": "Current sink 3; can be left floating when not used."
},
{
"number": "6",
"name": "CS4",
"type": "output",
"description": "Current sink 4; can be left floating when not used."
},
{
"number": "7",
"name": "CS5",
"type": "output",
"description": "Current sink 5; can be left floating when not used."
},
{
"number": "8",
"name": "CS6",
"type": "output",
"description": "Current sink 6; can be left floating when not used."
},
{
"number": "9",
"name": "CS7",
"type": "output",
"description": "Current sink 7; can be left floating when not used."
},
{
"number": "10",
"name": "CS8",
"type": "output",
"description": "Current sink 8; can be left floating when not used."
},
{
"number": "11",
"name": "NC",
"type": "unconnected",
"description": "No connect; this pin must be left floating."
},
{
"number": "12",
"name": "NC",
"type": "unconnected",
"description": "No connect; this pin must be left floating."
},
{
"number": "13",
"name": "NC",
"type": "unconnected",
"description": "No connect; this pin must be left floating."
},
{
"number": "14",
"name": "NC",
"type": "unconnected",
"description": "No connect; this pin must be left floating."
},
{
"number": "15",
"name": "VLED",
"type": "power_in",
"description": "Power supply input for the high-side switches (2.7 V to 5.5 V)."
},
{
"number": "16",
"name": "CS9",
"type": "output",
"description": "Current sink 9; can be left floating when not used."
},
{
"number": "17",
"name": "CS10",
"type": "output",
"description": "Current sink 10; can be left floating when not used."
},
{
"number": "18",
"name": "CS11",
"type": "output",
"description": "Current sink 11; can be left floating when not used."
},
{
"number": "19",
"name": "CS12",
"type": "output",
"description": "Current sink 12; can be left floating when not used."
},
{
"number": "20",
"name": "CS13",
"type": "output",
"description": "Current sink 13; can be left floating when not used."
},
{
"number": "21",
"name": "CS14",
"type": "output",
"description": "Current sink 14; can be left floating when not used."
},
{
"number": "22",
"name": "CS15",
"type": "output",
"description": "Current sink 15; can be left floating when not used."
},
{
"number": "23",
"name": "CS16",
"type": "output",
"description": "Current sink 16; can be left floating when not used."
},
{
"number": "24",
"name": "CS17",
"type": "output",
"description": "Current sink 17; can be left floating when not used."
},
{
"number": "25",
"name": "VCAP",
"type": "power_out",
"description": "Internal LDO output; a 1 µF capacitor to GND must be connected, placed as close to the device as possible."
},
{
"number": "26",
"name": "IFS",
"type": "input",
"description": "Interface select: low selects I2C, high selects SPI; a resistor must be connected between VIO and this pin."
},
{
"number": "27",
"name": "VSYNC",
"type": "input",
"description": "External synchronization signal for display modes 2 and 3."
},
{
"number": "28",
"name": "SCL_SCLK",
"type": "input",
"description": "I2C clock input or SPI clock input; pulled up to VIO when configured as I2C."
},
{
"number": "29",
"name": "SDA_MOSI",
"type": "bidirectional",
"description": "I2C data or SPI leader-output follower-input; pulled up to VIO when configured as I2C."
},
{
"number": "30",
"name": "ADDR0_MISO",
"type": "bidirectional",
"description": "I2C address select 0 or SPI leader-input follower-output."
},
{
"number": "31",
"name": "ADDR1_SS",
"type": "input",
"description": "I2C address select 1 or SPI follower select."
},
{
"number": "32",
"name": "VIO_EN",
"type": "power_in",
"description": "Digital circuit supply (1.65 V to 5.5 V) and chip enable; a 1 nF capacitor to GND must be placed as close to the device as possible."
},
{
"number": "33",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
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"extractor": "extract_pins 0.3",
"primary_model": "claude-sonnet-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: Exposed pad has no pin number in the datasheet; labelled 'EP' (GND). Assign pad number per footprint; Datasheet lists NC pins as type 'O' but states they must be left floating; mapped to unconnected.; VIO_EN type is given as 'power, I' (supply plus enable); mapped to power_in. VCAP is an LDO output, "
],
"pages_sent": 19,
"cost_usd": 0.2022,
"at": "2026-10-22T22:52:44"
},
"datasheet": {
"url": "https://www.ti.com.cn/cn/lit/ds/symlink/lp5861t.pdf?ts=1729044189629&ref_url=https%253A%252F%252Fwww.ti.com.cn%252Fsitesearch%252Fzh-cn%252Fdocs%252Funiversalsearch.tsp%253FlangPref%253Dzh-CN%2526nr%253D11%2526searchTerm%253DLP5861TRSMR",
"pages": 74,
"sha256": "057b471a08863cbb",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 33,
"described": 33,
"cites_pages": true,
"refuses_to_fabricate": true
}
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"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "7b482a511cdf2cf875c31931f9fea7f745b8dac2ea6203531cd6604f40a290cb",
"checked": "2026-10-22",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "lp5861trsmr-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
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"footprint_binding": "identity",
"sha256": "2f5359dec49d95c5eb42f8305f34fa8c8688c441f4f4ae08090e800fca308b88",
"checked": "2026-10-22",
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]
},
"metadata": {
"specs": {
"Manufacturer": "TI(德州仪器)",
"Package": "VQFN-32-EP(4x4)",
"Category": "",
"Pins": "33"
},
"characteristics": {
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"source": "datasheet",
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"rows": [
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"name": "VCC/VLED/VIO/EN/CS/SW/SDA/SCL/SCLK/MOSI/MISO/SS/ADDR0/ADDR1/VSYNC/IFS voltage",
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"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 6,
"conditions": "",
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{
"name": "VCAP voltage",
"symbol": "",
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"unit": "V",
"min": -0.3,
"typ": null,
"max": 2,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Junction temperature",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": null,
"max": 150,
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"source_page": 6,
"source": "datasheet"
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{
"name": "Storage temperature",
"symbol": "Tstg",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
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"source_page": 6,
"source": "datasheet"
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{
"name": "Supply voltage",
"symbol": "VCC",
"kind": "recommended_operating",
"unit": "V",
"min": 2.7,
"typ": null,
"max": 5.5,
"conditions": "",
"source_page": 6,
"source": "datasheet"
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{
"name": "LED supply voltage",
"symbol": "VLED",
"kind": "recommended_operating",
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"min": 2.7,
"typ": null,
"max": 5.5,
"conditions": "",
"source_page": 6,
"source": "datasheet"
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{
"name": "VIO_EN input voltage",
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"unit": "V",
"min": 1.65,
"typ": null,
"max": 5.5,
"conditions": "",
"source_page": 6,
"source": "datasheet"
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{
"name": "Operating ambient temperature",
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"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Junction-to-ambient thermal resistance",
"symbol": "RθJA",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 32.9,
"max": null,
"conditions": "RSM (VQFN) 32 pin",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Junction-to-case (top) thermal resistance",
"symbol": "RθJC(top)",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 29.2,
"max": null,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Junction-to-board thermal resistance",
"symbol": "RθJB",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 12.3,
"max": null,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Junction-to-top characterization parameter",
"symbol": "ΨJT",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 0.4,
"max": null,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Junction-to-board characterization parameter",
"symbol": "ΨJB",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 12.3,
"max": null,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Junction-to-case (bottom) thermal resistance",
"symbol": "RθJC(bot)",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 3.7,
"max": null,
"conditions": "",
"source_page": 6,
"source": "datasheet"
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{
"name": "Device supply voltage",
"symbol": "VCC",
"kind": "electrical",
"unit": "V",
"min": 2.7,
"typ": null,
"max": 5.5,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Shutdown supply current",
"symbol": "ISHUTDOWN",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 0.1,
"max": 1.5,
"conditions": "VEN = 0, CHIP_EN = 0 (bit), ADDx = 0; total current from VCC and VLED",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Standby supply current",
"symbol": "ISTANDBY",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 5.5,
"max": 12,
"conditions": "VEN = 3.3V, CHIP_EN = 0 (bit), total current from VCC and VLED",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Normal mode supply current",
"symbol": "INORMAL",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 4.3,
"max": 6,
"conditions": "VEN = 3.3V, CHIP_EN = 1, all channels IOUT = 12.5mA (MC=1, CC=127, DC=256), current from VCC",
"source_page": 7,
"source": "datasheet"
},
{
"name": "LED supply voltage",
"symbol": "VLED",
"kind": "electrical",
"unit": "V",
"min": 2.7,
"typ": null,
"max": 5.5,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "VIO supply voltage",
"symbol": "VVIO",
"kind": "electrical",
"unit": "V",
"min": 1.65,
"typ": null,
"max": 5.5,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "VIO supply current",
"symbol": "IVIO",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": 5,
"conditions": "Interface idle",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Current sink output range",
"symbol": "ICS",
"kind": "electrical",
"unit": "mA",
"min": 0.1,
"typ": null,
"max": 75,
"conditions": "2.7 <= VCC < 3.3V, PWM = 100%",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Current sink output range",
"symbol": "ICS",
"kind": "electrical",
"unit": "mA",
"min": 0.1,
"typ": null,
"max": 125,
"conditions": "VCC >= 3.3V, PWM = 100%",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Leakage current (CS0-CS17)",
"symbol": "ILKG",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 0.1,
"max": 1,
"conditions": "Channel off, up_deghost = 0, VCS = 5V",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Device-to-device current error",
"symbol": "IERR_DD",
"kind": "electrical",
"unit": "%",
"min": -5,
"typ": null,
"max": 5,
"conditions": "All channels on, 1mA, MC=0, CC=17, DC=255, PWM=100%",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Device-to-device current error",
"symbol": "IERR_DD",
"kind": "electrical",
"unit": "%",
"min": -7,
"typ": null,
"max": 7,
"conditions": "All channels on, 125mA, MC=7, CC=127, DC=255, PWM=100%",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Channel-to-channel current error",
"symbol": "IERR_CC",
"kind": "electrical",
"unit": "%",
"min": -5,
"typ": null,
"max": 5,
"conditions": "All channels on, 1mA, MC=0, CC=17, DC=255, PWM=100%",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Channel-to-channel current error",
"symbol": "IERR_CC",
"kind": "electrical",
"unit": "%",
"min": -7,
"typ": null,
"max": 7,
"conditions": "All channels on, 125mA, MC=7, CC=127, DC=255, PWM=100%",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Output saturation voltage",
"symbol": "VSAT",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 1,
"conditions": "IOUT = 125mA, lower output voltage until LED current drops 5%",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Output saturation voltage",
"symbol": "VSAT",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.7,
"conditions": "IOUT = 100mA, lower output voltage until LED current drops 5% (LP5861TRSMR only)",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Output saturation voltage",
"symbol": "VSAT",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.6,
"conditions": "IOUT = 75mA, lower output voltage until LED current drops 5%",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Output saturation voltage",
"symbol": "VSAT",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.5,
"conditions": "IOUT = 25mA, lower output voltage until LED current drops 5%",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Low-level input voltage",
"symbol": "VLOGIC_IL",
"kind": "electrical",
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{
"name": "High-level input voltage",
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{
"name": "EN low-level input voltage",
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"unit": "µA",
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"name": "Oscillator frequency error device-to-device",
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"typ": null,
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"name": "Wait time from UVLO deactivation",
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"unit": "µs",
"min": null,
"typ": null,
"max": 500,
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"source_page": 8,
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{
"name": "Wait time after Chip_EN = 1",
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"min": null,
"typ": null,
"max": 100,
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"source_page": 8,
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"kind": "timing",
"unit": "µs",
"min": 200,
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"source_page": 8,
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{
"name": "SPI clock frequency",
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"min": null,
"typ": null,
"max": 12,
"conditions": "",
"source_page": 8,
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{
"name": "Undervoltage restart",
"symbol": "VUVR",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 2.5,
"conditions": "VCC rising, test mode",
"source_page": 7,
"source": "datasheet"
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"name": "Undervoltage shutdown",
"symbol": "VUVF",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 1.9,
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"source_page": 7,
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"name": "Undervoltage shutdown hysteresis",
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"typ": 0.3,
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"min": null,
"typ": 1.78,
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"source_page": 7,
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"typ": 62.5,
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"source_page": 8,
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"typ": 125,
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"source_page": 8,
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"name": "Internal oscillator frequency",
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"min": null,
"typ": 31.2,
"max": null,
"conditions": "",
"source_page": 8,
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"name": "Open detection threshold",
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"kind": "electrical",
"unit": "V",
"min": null,
"typ": 0.25,
"max": null,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
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"name": "Thermal shutdown junction temperature",
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"kind": "electrical",
"unit": "°C",
"min": null,
"typ": 150,
"max": null,
"conditions": "",
"source_page": 8,
"source": "datasheet"
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