component
ADBMS1818ASWZ-RL
Public Made by Adomby adom
Analog Devices Battery Management, LQFP-64-EP(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "adbms1818aswz-rl",
"title": "ADBMS1818ASWZ-RL",
"brief": "Analog Devices Battery Management, LQFP-64-EP(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"power management (pmic)",
"adbms1818aswz-rl",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "ADBMS1818ASWZ-RL",
"manufacturer": "Analog Devices",
"package": "LQFP-64-EP(10x10)",
"pin_count": 65,
"category": "Power Management (PMIC)",
"subcategory": "Battery Management",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589785203305574400",
"parts": {
"symbol": "adbms1818aswz-rl.kicad_sym",
"footprint": "adbms1818aswz-rl.kicad_mod",
"model_3d": "adbms1818aswz-rl-hero.glb",
"model_3d_plain": "adbms1818aswz-rl-etched.glb",
"model_3d_step": "adbms1818aswz-rl-etched.step",
"model_3d_step_plain": "adbms1818aswz-rl.step",
"lbr": "adbms1818aswz-rl.lbr"
},
"distributor_links": {
"lcsc": "C2971928"
},
"distributor_check": {
"checked_at": "2026-10-17T17:48:45Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "quota"
},
"mouser": {
"pn": null,
"status": "quota"
}
},
"pins": [
{
"number": "1",
"name": "V+",
"type": "power_in",
"description": "Positive supply pin; absolute maximum V+ to V- is 112.5 V."
},
{
"number": "2",
"name": "C0",
"type": "input",
"description": "Cell input C0 (bottom of the cell stack); absolute maximum -0.3 V to +6 V relative to V-."
},
{
"number": "3",
"name": "S1",
"type": "bidirectional",
"description": "Balance input/output 1; internal N-channel MOSFET connected between S1 and C0 for discharging the cell."
},
{
"number": "4",
"name": "C1",
"type": "input",
"description": "Cell input C1."
},
{
"number": "5",
"name": "S2",
"type": "bidirectional",
"description": "Balance input/output 2; internal N-channel MOSFET connected between S2 and C1 for discharging the cell."
},
{
"number": "6",
"name": "C2",
"type": "input",
"description": "Cell input C2."
},
{
"number": "7",
"name": "S3",
"type": "bidirectional",
"description": "Balance input/output 3; internal N-channel MOSFET connected between S3 and C2 for discharging the cell."
},
{
"number": "8",
"name": "C3",
"type": "input",
"description": "Cell input C3."
},
{
"number": "9",
"name": "S4",
"type": "bidirectional",
"description": "Balance input/output 4; internal N-channel MOSFET connected between S4 and C3 for discharging the cell."
},
{
"number": "10",
"name": "C4",
"type": "input",
"description": "Cell input C4."
},
{
"number": "11",
"name": "S5",
"type": "bidirectional",
"description": "Balance input/output 5; internal N-channel MOSFET connected between S5 and C4 for discharging the cell."
},
{
"number": "12",
"name": "C5",
"type": "input",
"description": "Cell input C5."
},
{
"number": "13",
"name": "S6",
"type": "bidirectional",
"description": "Balance input/output 6; internal N-channel MOSFET connected between S6 and C5 for discharging the cell."
},
{
"number": "14",
"name": "C6",
"type": "input",
"description": "Cell input C6."
},
{
"number": "15",
"name": "S7",
"type": "bidirectional",
"description": "Balance input/output 7; internal N-channel MOSFET connected between S7 and C6 for discharging the cell."
},
{
"number": "16",
"name": "C7",
"type": "input",
"description": "Cell input C7."
},
{
"number": "17",
"name": "S8",
"type": "bidirectional",
"description": "Balance input/output 8; internal N-channel MOSFET connected between S8 and C7 for discharging the cell."
},
{
"number": "18",
"name": "C8",
"type": "input",
"description": "Cell input C8."
},
{
"number": "19",
"name": "S9",
"type": "bidirectional",
"description": "Balance input/output 9; internal N-channel MOSFET connected between S9 and C8 for discharging the cell."
},
{
"number": "20",
"name": "C9",
"type": "input",
"description": "Cell input C9."
},
{
"number": "21",
"name": "S10",
"type": "bidirectional",
"description": "Balance input/output 10; internal N-channel MOSFET connected between S10 and C9 for discharging the cell."
},
{
"number": "22",
"name": "C10",
"type": "input",
"description": "Cell input C10."
},
{
"number": "23",
"name": "S11",
"type": "bidirectional",
"description": "Balance input/output 11; internal N-channel MOSFET connected between S11 and C10 for discharging the cell."
},
{
"number": "24",
"name": "C11",
"type": "input",
"description": "Cell input C11."
},
{
"number": "25",
"name": "S12",
"type": "bidirectional",
"description": "Balance input/output 12; internal N-channel MOSFET connected between S12 and C11 for discharging the cell."
},
{
"number": "26",
"name": "C12",
"type": "input",
"description": "Cell input C12; V+ must stay within 50 V of C12."
},
{
"number": "27",
"name": "S13",
"type": "bidirectional",
"description": "Balance input/output 13; internal N-channel MOSFET connected between S13 and C12 for discharging the cell."
},
{
"number": "28",
"name": "C13",
"type": "input",
"description": "Cell input C13."
},
{
"number": "29",
"name": "S14",
"type": "bidirectional",
"description": "Balance input/output 14; internal N-channel MOSFET connected between S14 and C13 for discharging the cell."
},
{
"number": "30",
"name": "C14",
"type": "input",
"description": "Cell input C14."
},
{
"number": "31",
"name": "S15",
"type": "bidirectional",
"description": "Balance input/output 15; internal N-channel MOSFET connected between S15 and C14 for discharging the cell."
},
{
"number": "32",
"name": "C15",
"type": "input",
"description": "Cell input C15."
},
{
"number": "33",
"name": "S16",
"type": "bidirectional",
"description": "Balance input/output 16; internal N-channel MOSFET connected between S16 and C15 for discharging the cell."
},
{
"number": "34",
"name": "C16",
"type": "input",
"description": "Cell input C16."
},
{
"number": "35",
"name": "S17",
"type": "bidirectional",
"description": "Balance input/output 17; internal N-channel MOSFET connected between S17 and C16 for discharging the cell."
},
{
"number": "36",
"name": "C17",
"type": "input",
"description": "Cell input C17."
},
{
"number": "37",
"name": "S18",
"type": "bidirectional",
"description": "Balance input/output 18; internal N-channel MOSFET connected between S18 and C17 for discharging the cell."
},
{
"number": "38",
"name": "C18",
"type": "input",
"description": "Cell input C18 (top cell); absolute maximum -0.3 V to MIN(V+ + 5.5 V, 112.5 V) relative to V-."
},
{
"number": "39",
"name": "GPIO1",
"type": "bidirectional",
"description": "General purpose I/O usable as digital input/output or analog input with measurement range V- to 5 V."
},
{
"number": "40",
"name": "GPIO2",
"type": "bidirectional",
"description": "General purpose I/O usable as digital input/output or analog input with measurement range V- to 5 V."
},
{
"number": "41",
"name": "GPIO3",
"type": "bidirectional",
"description": "General purpose I/O (digital in/out or analog input, V- to 5 V) that can also be used as an I2C or SPI port."
},
{
"number": "42",
"name": "GPIO4",
"type": "bidirectional",
"description": "General purpose I/O (digital in/out or analog input, V- to 5 V) that can also be used as an I2C or SPI port."
},
{
"number": "43",
"name": "GPIO5",
"type": "bidirectional",
"description": "General purpose I/O (digital in/out or analog input, V- to 5 V) that can also be used as an I2C or SPI port."
},
{
"number": "44",
"name": "GPIO6",
"type": "bidirectional",
"description": "General purpose I/O usable as digital input/output or analog input with measurement range V- to 5 V."
},
{
"number": "45",
"name": "GPIO7",
"type": "bidirectional",
"description": "General purpose I/O usable as digital input/output or analog input with measurement range V- to 5 V."
},
{
"number": "46",
"name": "GPIO8",
"type": "bidirectional",
"description": "General purpose I/O usable as digital input/output or analog input with measurement range V- to 5 V."
},
{
"number": "47",
"name": "GPIO9",
"type": "bidirectional",
"description": "General purpose I/O usable as digital input/output or analog input with measurement range V- to 5 V."
},
{
"number": "48",
"name": "VREG",
"type": "power_in",
"description": "5 V regulator pin; bypass with an external 1 µF capacitor."
},
{
"number": "49",
"name": "DRIVE",
"type": "output",
"description": "Connect the base of an NPN transistor here, with its collector to V+ and emitter to VREG; absolute maximum -0.3 V to +7 V."
},
{
"number": "50",
"name": "VREF2",
"type": "output",
"description": "Buffered 2nd reference voltage for driving multiple 10 kΩ thermistors; bypass with an external 1 µF capacitor."
},
{
"number": "51",
"name": "VREF1",
"type": "output",
"description": "ADC reference voltage; bypass with an external 1 µF capacitor, no dc loads allowed."
},
{
"number": "52",
"name": "DTEN",
"type": "input",
"description": "Discharge timer enable; connect to VREG to enable the discharge timer."
},
{
"number": "53",
"name": "SDI",
"type": "input",
"description": "4-wire SPI serial data in digital input (not connected in isoSPI mode)."
},
{
"number": "54",
"name": "SDO",
"type": "output",
"description": "4-wire SPI serial data out, open-drain NMOS output requiring a 5 kΩ pull-up resistor (not connected in isoSPI mode)."
},
{
"number": "55",
"name": "ISOMD",
"type": "input",
"description": "Serial interface mode select: connect to VREG for 2-wire isoSPI mode, or to V- for 4-wire SPI mode."
},
{
"number": "56",
"name": "WDT",
"type": "output",
"description": "Open-drain NMOS watchdog timer output; can be left disconnected or tied via 1 MΩ to VREG, goes high impedance if no valid command is received within 2 seconds."
},
{
"number": "57",
"name": "IBIAS",
"type": "passive",
"description": "Isolated interface current bias; tie to V- through a resistor divider, pin is at 2 V when isoSPI is enabled and output drive current is 20 times the IB sourced."
},
{
"number": "58",
"name": "ICMP",
"type": "input",
"description": "Isolated interface comparator threshold set; tie to the resistor divider between IBIAS and V-, comparator thresholds are half the ICMP voltage."
},
{
"number": "59",
"name": "V–",
"type": "power_in",
"description": "Negative supply pin; the V- pins must be shorted together externally to the IC."
},
{
"number": "60",
"name": "V–",
"type": "power_in",
"description": "Negative supply pin; the V- pins must be shorted together externally to the IC."
},
{
"number": "61",
"name": "CSB/IMA",
"type": "bidirectional",
"description": "Active-low chip select (4-wire SPI) or IMA, negative of the differential isoSPI port A pair."
},
{
"number": "62",
"name": "SCK/IPA",
"type": "bidirectional",
"description": "Serial clock input (4-wire SPI) or IPA, positive of the differential isoSPI port A pair."
},
{
"number": "63",
"name": "IMB",
"type": "bidirectional",
"description": "Isolated 2-wire serial interface port B, negative of differential input/output pair; output drive current limits are 30 mA absolute maximum."
},
{
"number": "64",
"name": "IPB",
"type": "bidirectional",
"description": "Isolated 2-wire serial interface port B, positive of differential input/output pair; output drive current limits are 30 mA absolute maximum."
},
{
"number": "65",
"name": "EPAD",
"type": "power_in",
"description": "Exposed pad (V-); must be soldered to the PCB and connected to the V- plane for thermal management."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-haiku-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: Pin 1 to pin 64 mapping comes from Table 14 only. Figure 3 (the pin configuration drawing) is not in; Table 14 and Table 15 conflict for the 4-wire SPI signals on pins 53, 54, 61, 62. Table 14 lists SDI; Table 15 lists the Port B row as IPB, IMB, ICMP, IBIAS for pins 57, 58, 63, 64, which conflicts with",
"30/65 pins cited to the wrong page (name found elsewhere): ['10:C4@p11', '11:S5@p12', '12:C5@p11', '13:S6@p12']"
],
"pages_sent": 8,
"cost_usd": 0.1081,
"at": "2026-10-17T17:46:34"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589785203305574400",
"pages": 89,
"sha256": "fdab29ebeb2e5ec7",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 65,
"described": 65,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "adbms1818aswz-rl.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
12,
12,
1.5
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "dde48e46dd3f1a46fe776b812b79969568eaeab6936a6859662cd3193f2cd505",
"checked": "2026-10-17",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "adbms1818aswz-rl-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
12,
12,
1.5
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "4cc214084ebf69121c703d5b46f942d3735a91c7364a14a95bcce15045fbadca",
"checked": "2026-10-17",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Analog Devices",
"Package": "LQFP-64-EP(10x10)",
"Category": "Power Management (PMIC)",
"Pins": "65"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "fdab29ebeb2e5ec743ca600a1a652f840daf8bef6ce12ffd2111182da9be745c",
"rows": [
{
"name": "TME normal mode, C(n) to C(n-1), GPIO(n) to V- = 0",
"symbol": "",
"kind": "tolerance",
"unit": "mV",
"min": -0.2,
"typ": null,
"max": 0.2,
"conditions": "Normal mode; C(n) to C(n-1), GPIO(n) to V- = 0",
"source_page": 4,
"source": "datasheet"
},
{
"name": "TME normal mode, C(n) to C(n-1) = 2.0",
"symbol": "",
"kind": "tolerance",
"unit": "mV",
"min": -2.6,
"typ": null,
"max": 2.6,
"conditions": "Normal mode; C(n) to C(n-1) = 2.0",
"source_page": 4,
"source": "datasheet"
},
{
"name": "TME normal mode, GPIO(n) to V- = 2.0, full temp range",
"symbol": "",
"kind": "tolerance",
"unit": "mV",
"min": -2.8,
"typ": null,
"max": 2.8,
"conditions": "Normal mode; C(n) to C(n-1), GPIO(n) to V- = 2.0, apply over the full specified temperature range",
"source_page": 4,
"source": "datasheet"
},
{
"name": "TME normal mode, C(n) to C(n-1) = 3.3",
"symbol": "",
"kind": "tolerance",
"unit": "mV",
"min": -3,
"typ": null,
"max": 3,
"conditions": "Normal mode; C(n) to C(n-1) = 3.3",
"source_page": 4,
"source": "datasheet"
},
{
"name": "TME normal mode, GPIO(n) to V- = 3.3, full temp range",
"symbol": "",
"kind": "tolerance",
"unit": "mV",
"min": -4,
"typ": null,
"max": 4,
"conditions": "Normal mode; C(n) to C(n-1), GPIO(n) to V- = 3.3, apply over the full specified temperature range",
"source_page": 4,
"source": "datasheet"
},
{
"name": "TME normal mode, C(n) to C(n-1) = 4.2",
"symbol": "",
"kind": "tolerance",
"unit": "mV",
"min": -3.8,
"typ": null,
"max": 3.8,
"conditions": "Normal mode; C(n) to C(n-1) = 4.2",
"source_page": 4,
"source": "datasheet"
},
{
"name": "TME normal mode, GPIO(n) to V- = 4.2, full temp range",
"symbol": "",
"kind": "tolerance",
"unit": "mV",
"min": -4.8,
"typ": null,
"max": 4.8,
"conditions": "Normal mode; C(n) to C(n-1), GPIO(n) to V- = 4.2, apply over the full specified temperature range",
"source_page": 4,
"source": "datasheet"
},
{
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"min": -1,
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"source": "datasheet"
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"min": -0.05,
"typ": 0.05,
"max": 0.2,
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"source_page": 4,
"source": "datasheet"
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"kind": "tolerance",
"unit": "%",
"min": -0.5,
"typ": 0.5,
"max": 1.5,
"conditions": "Normal mode; digital supply voltage VREGD, apply over the full specified temperature range",
"source_page": 4,
"source": "datasheet"
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{
"name": "TME filtered mode, C(n) to C(n-1), GPIO(n) to V- = 0",
"symbol": "",
"kind": "tolerance",
"unit": "mV",
"min": -0.1,
"typ": null,
"max": 0.1,
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"source_page": 4,
"source": "datasheet"
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{
"name": "TME filtered mode, C(n) to C(n-1) = 2.0",
"symbol": "",
"kind": "tolerance",
"unit": "mV",
"min": -1.6,
"typ": null,
"max": 1.6,
"conditions": "Filtered mode; C(n) to C(n-1) = 2.0",
"source_page": 4,
"source": "datasheet"
},
{
"name": "TME filtered mode, GPIO(n) to V- = 2.0, full temp range",
"symbol": "",
"kind": "tolerance",
"unit": "mV",
"min": -1.8,
"typ": null,
"max": 1.8,
"conditions": "Filtered mode; C(n) to C(n-1), GPIO(n) to V- = 2.0, apply over the full specified temperature range",
"source_page": 4,
"source": "datasheet"
},
{
"name": "TME filtered mode, C(n) to C(n-1) = 3.3",
"symbol": "",
"kind": "tolerance",
"unit": "mV",
"min": -2.2,
"typ": null,
"max": 2.2,
"conditions": "Filtered mode; C(n) to C(n-1) = 3.3",
"source_page": 4,
"source": "datasheet"
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{
"name": "TME filtered mode, GPIO(n) to V- = 3.3, full temp range",
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"unit": "mV",
"min": -3,
"typ": null,
"max": 3,
"conditions": "Filtered mode; C(n) to C(n-1), GPIO(n) to V- = 3.3, apply over the full specified temperature range",
"source_page": 4,
"source": "datasheet"
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{
"name": "TME filtered mode, C(n) to C(n-1) = 4.2",
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"min": -2.8,
"typ": null,
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"min": -0.5,
"typ": 0.8,
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"name": "1st Reference Voltage",
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"kind": "electrical",
"unit": "V",
"min": 3,
"typ": 3.15,
"max": 3.3,
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"source": "datasheet"
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"name": "2nd Reference Voltage",
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"unit": "V",
"min": 2.993,
"typ": 3,
"max": 3.007,
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"source": "datasheet"
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{
"name": "2nd Reference Voltage with 5 kΩ load",
"symbol": "VREF2",
"kind": "electrical",
"unit": "V",
"min": 2.992,
"typ": 3,
"max": 3.008,
"conditions": "VREF2 pin, 5 kΩ load to V-, apply over the full specified temperature range",
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"source": "datasheet"
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{
"name": "V+ Supply Current, sleep",
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"kind": "electrical",
"unit": "µA",
"min": 3,
"typ": null,
"max": 5,
"conditions": "State: core = sleep, isoSPI = idle, VREG = 5 V",
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"typ": 0.55,
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{
"name": "V+ Supply Current, measure",
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"min": 0.65,
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"name": "VREG Supply Current, standby",
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"typ": 35,
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"typ": 15,
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"source": "datasheet"
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{
"name": "V+ Supply Voltage",
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"unit": "V",
"min": 16,
"typ": 60,
"max": 90,
"conditions": "TME specifications met, apply over the full specified temperature range",
"source_page": 6,
"source": "datasheet"
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{
"name": "VREG Supply Voltage",
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"source": "datasheet"
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"unit": "V",
"min": 5.4,
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"max": 5.9,
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"source": "datasheet"
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"name": "Digital Supply Voltage",
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"min": 2.7,
"typ": 3,
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"source": "datasheet"
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{
"name": "Discharge Switch On Resistance",
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"min": 4,
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"symbol": "tRTN",
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"unit": "ns",
"min": 325,
"typ": 375,
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{
"name": "Data Daisy-Chain Delay",
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"unit": "ns",
"min": 200,
"typ": 250,
"max": 300,
"conditions": "Apply over the full specified temperature range",
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{
"name": "Input Voltage (Relative to V-), C0",
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"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 6,
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"source_page": 11,
"source": "datasheet"
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{
"name": "Input Voltage (Relative to V-), C18",
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"min": -0.3,
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{
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"min": -0.3,
"typ": null,
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"conditions": "Relative to V-; max = VREG + 0.3 V, ≤ 6 V",
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{
"name": "Input Voltage (Relative to V-), DRIVE",
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"min": null,
"typ": null,
"max": 112.5,
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