component
SY6915RBC
Public Made by Adomby adom
Silergy Corp Battery Management ICs, VQFN-20-EP(3.5x3.5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"title": "SY6915RBC",
"brief": "Silergy Corp Battery Management ICs, VQFN-20-EP(3.5x3.5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
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"manufacturer": "Silergy Corp",
"package": "VQFN-20-EP(3.5x3.5)",
"pin_count": 21,
"category": "Power Supply Chip",
"subcategory": "Battery Management ICs",
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"distributor_check": {
"checked_at": "2026-10-22T16:34:07Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
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"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "ACN",
"type": "input",
"description": "Adapter current sense negative input."
},
{
"number": "2",
"name": "ACP",
"type": "input",
"description": "Adapter current sense positive input."
},
{
"number": "3",
"name": "ACCMS",
"type": "passive",
"description": "Common source connection for N-channel MOSFET switches."
},
{
"number": "4",
"name": "ACDRV",
"type": "output",
"description": "N-channel blocking MOSFETs driver output."
},
{
"number": "5",
"name": "ACPRES",
"type": "output",
"description": "AC adapter detection open-drain output, pulled high by an external pull-up when ACDET is above 1.8V and VCC is above UVLO, indicating a valid adapter is present to start charge."
},
{
"number": "6",
"name": "ACDET",
"type": "input",
"description": "Adapter detection input set by a resistor divider from the adapter output; above 0.6V with VCC above UVLO, VDD is present and the ACPRES comparator and IMON are active."
},
{
"number": "7",
"name": "IMON",
"type": "output",
"description": "Buffered input or charge current output selectable by SMBus command, with voltage equal to 20 times the differential voltage across the sense resistor."
},
{
"number": "8",
"name": "SDA",
"type": "bidirectional",
"description": "SMBus data I/O, open-drain output requiring an external pull-up resistor per the SMBus specification."
},
{
"number": "9",
"name": "SCL",
"type": "input",
"description": "SMBus clock input requiring an external pull-up resistor per the SMBus specification."
},
{
"number": "10",
"name": "ILIM",
"type": "input",
"description": "Charge current limit input where the minimum of ILIM voltage and DAC limit voltage sets the limit; above 1.6V disables this control, charge is disabled below 75mV and enabled above 105mV."
},
{
"number": "11",
"name": "BATDRV",
"type": "output",
"description": "Charge pump output to drive the N-channel BAT MOSFET."
},
{
"number": "12",
"name": "ISN",
"type": "input",
"description": "Battery charge current sense negative input."
},
{
"number": "13",
"name": "ISP",
"type": "input",
"description": "Battery charge current sense positive input."
},
{
"number": "14",
"name": "GND",
"type": "power_in",
"description": "IC ground."
},
{
"number": "15",
"name": "LDRV",
"type": "output",
"description": "Low side MOSFET driver output."
},
{
"number": "16",
"name": "VDD",
"type": "power_out",
"description": "LDO output for the converter power MOSFET drivers; connect at least a 1µF ceramic capacitor to GND."
},
{
"number": "17",
"name": "BST",
"type": "power_in",
"description": "High side power MOSFET driver power supply."
},
{
"number": "18",
"name": "HDRV",
"type": "output",
"description": "High side MOSFET driver output."
},
{
"number": "19",
"name": "LX",
"type": "passive",
"description": "Inductor connecting point."
},
{
"number": "20",
"name": "VCC",
"type": "power_in",
"description": "IC power supply input; add a 10Ω resistor and a 1µF capacitor to filter inrush current and high frequency noise."
},
{
"number": "21",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
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"primary_model": "claude-sonnet-5-5",
"primary_mode": "text",
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"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
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],
"pages_sent": 7,
"cost_usd": 0.0778,
"at": "2026-10-22T16:23:34"
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"pages": 29,
"sha256": "9d6ab7bf6c2247ee",
"source_tier": "mfr"
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"cad": "KiCad official (CC-BY-SA 4.0)",
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"described": 21,
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"refuses_to_fabricate": true
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"metadata": {
"specs": {
"Manufacturer": "Silergy Corp",
"Package": "VQFN-20-EP(3.5x3.5)",
"Category": "Power Supply Chip",
"Pins": "21"
},
"appearance": {
"contacts": {
"quote": "MOSFET’s output terminal as close as possible. Minimize the copper area of this trace to lower",
"page": 25,
"doc": "ds.pdf",
"material": "copper"
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"version": 1,
"datasheet_sha256": "9d6ab7bf6c2247eeedf0b7f574dbd52c5f167fbddcd9a92a386226bb71b90c42"
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{
"name": "CSA Gain Accuracy 5.12mV",
"symbol": "VIMON_ACC",
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"name": "CSA Gain Accuracy 2.56mV",
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"name": "CSA Gain Accuracy 1.28mV",
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{
"name": "Buffer Capacitance Load",
"symbol": "CIMON",
"kind": "electrical",
"unit": "pF",
"min": 0,
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{
"name": "VCC UVLO Comparator",
"symbol": "VUVLO",
"kind": "electrical",
"unit": "V",
"min": 3.5,
"typ": 3.75,
"max": 4,
"conditions": "VVCC rising",
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},
{
"name": "VCC UVLO Hysteresis",
"symbol": "ΔVUVLO",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 340,
"max": null,
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{
"name": "ACPRES Rising Threshold",
"symbol": "VACPRES",
"kind": "electrical",
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"min": 1.78,
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"max": 1.82,
"conditions": "VVCC >VUVLO, VACDET rising",
"source_page": 7,
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},
{
"name": "ACPRES Falling Hysteresis",
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"kind": "electrical",
"unit": "mV",
"min": 35,
"typ": 50,
"max": 75,
"conditions": "VVCC >VUVLO, VACDET falling",
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{
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"typ": 160,
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"conditions": "VVCC >VUVLO, VACDET rising above 2.4V, First time or ChargeOption() bit [15]=0",
"source_page": 7,
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{
"name": "ACPRES Rising Deglitch Time (not first time)",
"symbol": "tACPRES_DEG",
"kind": "timing",
"unit": "s",
"min": 0.9,
"typ": 1.3,
"max": 1.7,
"conditions": "VVCC >VUVLO,VACDET rising above 2.4V, Not first time and ChargeOption() bit [15]=1",
"source_page": 7,
"source": "datasheet"
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