component
L297DM
Public Made by Adomby adom
HGSEMI Stepper Motor Driver, SOP-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"brief": "HGSEMI Stepper Motor Driver, SOP-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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"manufacturer": "HGSEMI",
"package": "SOP-20-300mil",
"pin_count": 20,
"category": "Motor Driver ICs",
"subcategory": "Stepper Motor Driver",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590227455300055041",
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"source": "Component Ocean /api/assign-pns",
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"status": "quota"
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"pins": [
{
"number": "1",
"name": "SYNC",
"type": "bidirectional",
"description": "Output of the on-chip chopper oscillator; SYNC pins of synchronized L297s are tied together with the oscillator components on only one device, and an external clock may be injected here (VSYNC high 3.3 V min and low 0.8 V max at Io = 5 mA)."
},
{
"number": "2",
"name": "GND",
"type": "power_in",
"description": "Ground connection."
},
{
"number": "3",
"name": "HOME",
"type": "output",
"description": "Open-collector output that indicates the initial translator state (ABCD = 0101) when active, with leakage of 1 µA max at VCE = 7 V and saturation voltage of 0.4 V max at 5 mA."
},
{
"number": "4",
"name": "A",
"type": "output",
"description": "Motor phase A drive signal for the power stage, with output low 0.4 V max at 10 mA and output high 3.9 V min at 5 mA."
},
{
"number": "5",
"name": "INH1",
"type": "output",
"description": "Active-low inhibit output for the driver stages of phases A and B, used for fast load-current decay in a bipolar bridge and by the chopper to regulate current when CONTROL is low; inhibit output low 0.4 V max at 10 mA and high 3.9 V min at 5 mA."
},
{
"number": "6",
"name": "B",
"type": "output",
"description": "Motor phase B drive signal for the power stage, with output low 0.4 V max at 10 mA and output high 3.9 V min at 5 mA."
},
{
"number": "7",
"name": "C",
"type": "output",
"description": "Motor phase C drive signal for the power stage, with output low 0.4 V max at 10 mA and output high 3.9 V min at 5 mA."
},
{
"number": "8",
"name": "INH2",
"type": "output",
"description": "Active-low inhibit output for the driver stages of phases C and D, with the same function as INH1; inhibit output low 0.4 V max at 10 mA and high 3.9 V min at 5 mA."
},
{
"number": "9",
"name": "D",
"type": "output",
"description": "Motor phase D drive signal for the power stage, with output low 0.4 V max at 10 mA and output high 3.9 V min at 5 mA."
},
{
"number": "10",
"name": "ENABLE",
"type": "input",
"description": "Chip enable input; when low (inactive) INH1, INH2, A, B, C and D are forced low, with input low max 1.3 V and high min 2 V."
},
{
"number": "11",
"name": "CONTROL",
"type": "input",
"description": "Control input defining the chopper action: when low the chopper acts on INH1 and INH2, when high it acts on phase lines ABCD; input low max 0.6 V and high min 2 V."
},
{
"number": "12",
"name": "Vs",
"type": "power_in",
"description": "5 V supply input, specified at 4.75 V min to 7 V max with a quiescent supply current of 50 mA typ and 80 mA max (outputs floating); absolute maximum 10 V."
},
{
"number": "13",
"name": "SENS2",
"type": "input",
"description": "Load current sense voltage input from the power stages of phases C and D, with comparator offset of 5 mV max at Vref = 1 V and bias current of -100 to 10 µA."
},
{
"number": "14",
"name": "SENS1",
"type": "input",
"description": "Load current sense voltage input from the power stages of phases A and B, with comparator offset of 5 mV max at Vref = 1 V and bias current of -100 to 10 µA."
},
{
"number": "15",
"name": "Vref",
"type": "power_in",
"description": "Reference voltage for the chopper circuit that sets the peak load current, specified over 0 V to 3 V."
},
{
"number": "16",
"name": "OSC",
"type": "passive",
"description": "Connection for an RC network (R to VCC, C to ground) that sets the chopper rate with f ≅ 1/0.69RC; grounded on all devices except the one carrying the oscillator in synchronized multi-L297 configurations."
},
{
"number": "17",
"name": "CW/CCW",
"type": "input",
"description": "Clockwise/counterclockwise direction control input, internally synchronized so direction can be changed at any time; input low max 0.6 V and high min 2 V."
},
{
"number": "18",
"name": "CLOCK",
"type": "input",
"description": "Step clock input that advances the motor one increment on the rising edge of an active-low pulse, with minimum clock time tCLK of 0.5 µs; input low max 0.6 V and high min 2 V."
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{
"number": "19",
"name": "HALF/FULL",
"type": "input",
"description": "Half/full step select input: high selects half-step operation and low selects full-step operation; input low max 0.6 V and high min 2 V."
},
{
"number": "20",
"name": "RESET",
"type": "input",
"description": "Active-low reset input that restores the translator to the home position (state 1, ABCD = 0101); reset time tR of 1 µs min and reset-to-clock delay of 1 µs min apply."
}
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"extractor flagged: Pin connection diagram on page 2 is an image and not present in the extracted text; pin numbers are ; Datasheet lists the SO20 package and ordering number L297D but does not state '300mil' in the text; ; SYNC (pin 1) type is ambiguous: the datasheet describes it as an oscillator output but also says an "
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{
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"conditions": "VCE = 7V",
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{
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{
"name": "Total power dissipation",
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"conditions": "Tamb = 70°C",
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{
"name": "Storage and junction temperature",
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