component
DRV8812RHDR
Public Made by Adomby adom
Texas Instruments Stepper Motor Driver, VQFN-28-EP(5x5). Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.
main
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"description": "Texas Instruments Stepper Motor Driver, VQFN-28-EP(5x5). Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.",
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"component": {
"mpn": "DRV8812RHDR",
"manufacturer": "Texas Instruments",
"package": "VQFN-28-EP(5x5)",
"pin_count": 28,
"category": "Motor Driver ICs",
"subcategory": "Stepper Motor Driver",
"datasheet": "https://www.ti.com/cn/lit/gpn/drv8812",
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"distributor_links": {
"lcsc": "C575584"
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"distributor_check": {
"checked_at": "2026-10-21T17:23:56Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "quota"
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"mouser": {
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},
"pins": [
{
"number": "1",
"name": "BI0",
"type": "input",
"description": "Bridge B current selection LSB (BI1:BI0 = 00 for 100%, 01 for 71%, 10 for 38%, 11 for 0% full-scale chopping current)"
},
{
"number": "2",
"name": "BI1",
"type": "input",
"description": "Bridge B current selection MSB (completes BI1:BI0 current control function)"
},
{
"number": "3",
"name": "GND",
"type": "power_in",
"description": "Device ground"
},
{
"number": "4",
"name": "CP1",
"type": "bidirectional",
"description": "Charge pump flying capacitor node 1 (connect 0.01-µF 50-V capacitor between CP1 and CP2)"
},
{
"number": "5",
"name": "CP2",
"type": "bidirectional",
"description": "Charge pump flying capacitor node 2 (connect 0.01-µF 50-V capacitor between CP1 and CP2)"
},
{
"number": "6",
"name": "VCP",
"type": "bidirectional",
"description": "High-side gate drive voltage supply (connect 0.1-µF 16-V ceramic capacitor and 1-MΩ resistor to VM)"
},
{
"number": "7",
"name": "VMA",
"type": "power_in",
"description": "Bridge A motor supply voltage input (8.2-V to 45-V operating range, bypass with 0.1-µF capacitor to GND)"
},
{
"number": "8",
"name": "AOUT1",
"type": "output",
"description": "Bridge A output 1 for motor winding connection"
},
{
"number": "9",
"name": "ISENA",
"type": "bidirectional",
"description": "Bridge A current sense return (connect current sense resistor to measure chopping current)"
},
{
"number": "10",
"name": "AOUT2",
"type": "output",
"description": "Bridge A output 2 for motor winding connection"
},
{
"number": "11",
"name": "BOUT2",
"type": "output",
"description": "Bridge B output 2 for motor winding connection"
},
{
"number": "12",
"name": "ISENB",
"type": "bidirectional",
"description": "Bridge B current sense return (connect current sense resistor to measure chopping current)"
},
{
"number": "13",
"name": "BOUT1",
"type": "output",
"description": "Bridge B output 1 for motor winding connection"
},
{
"number": "14",
"name": "VMB",
"type": "power_in",
"description": "Bridge B motor supply voltage input (connect to same supply voltage as VMA with 0.1-µF bypass to GND)"
},
{
"number": "15",
"name": "AVREF",
"type": "input",
"description": "Bridge A reference voltage input for current regulation (1-3.5V with 0.01-µF bypass capacitor to GND recommended)"
},
{
"number": "16",
"name": "BVREF",
"type": "input",
"description": "Bridge B reference voltage input for current regulation (1-3.5V with 0.01-µF bypass capacitor to GND recommended)"
},
{
"number": "17",
"name": "GND",
"type": "power_in",
"description": "Device ground"
},
{
"number": "18",
"name": "V3P3OUT",
"type": "power_out",
"description": "3.3-V regulated supply output (bypass with 0.47-µF 6.3-V ceramic capacitor to GND, can supply VREF pins)"
},
{
"number": "19",
"name": "nRESET",
"type": "input",
"description": "Active-low reset input (initializes internal logic and disables H-bridge outputs when held low)"
},
{
"number": "20",
"name": "nSLEEP",
"type": "input",
"description": "Sleep mode control input (logic high enables device, logic low enters low-power sleep mode)"
},
{
"number": "21",
"name": "nFAULT",
"type": "tri_state",
"description": "Fault condition open-drain output (pulls low during thermal shutdown or overcurrent protection event)"
},
{
"number": "22",
"name": "DECAY",
"type": "input",
"description": "Decay mode selection input (low = slow decay, open = mixed decay, high = fast decay for both bridges)"
},
{
"number": "23",
"name": "APHASE",
"type": "input",
"description": "Bridge A phase/direction control input (logic high sets AOUT1 high and AOUT2 low)"
},
{
"number": "24",
"name": "AENBL",
"type": "input",
"description": "Bridge A enable input (logic high enables bridge A, logic low disables with high-impedance outputs)"
},
{
"number": "25",
"name": "BENBL",
"type": "input",
"description": "Bridge B enable input (logic high enables bridge B, logic low disables with high-impedance outputs)"
},
{
"number": "26",
"name": "BPHASE",
"type": "input",
"description": "Bridge B phase/direction control input (logic high sets BOUT1 high and BOUT2 low)"
},
{
"number": "27",
"name": "AI0",
"type": "input",
"description": "Bridge A current control LSB (AI1:AI0 = 00 for 100%, 01 for 71%, 10 for 38%, 11 for 0% full-scale chopping current)"
},
{
"number": "28",
"name": "AI1",
"type": "input",
"description": "Bridge A current control MSB (completes AI1:AI0 current selection function)"
}
],
"provenance": {
"extractor": "ds2sf",
"datasheet": {
"url": "https://www.ti.com/cn/lit/gpn/drv8812",
"pages": 32,
"sha256": "e267ee0fecd31d5d",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 28,
"described": 28,
"cites_pages": true,
"refuses_to_fabricate": true
}
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