component
BQ7694204PFBR
Public Made by Adomby adom
Texas Instruments Battery Management, TQFP-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
← Commit history
README.mdadded+85@@ -0,0 +1,85 @@+# BQ7694204PFBR++**Texas Instruments** · Battery Management · TQFP-48(7x7)++BQ7694204PFBR from Texas Instruments, in a TQFP-48(7x7). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | NC | unconnected | This pin is not connected to silicon. |+| 2 | VC9 | input | Sense voltage input for the ninth cell from the bottom of the stack, balance current input for cell 9, and return balance current for cell 10. |+| 3 | NC | unconnected | This pin is not connected to silicon. |+| 4 | VC8 | input | Sense voltage input for the eighth cell from the bottom of the stack, balance current input for cell 8, and return balance current for cell 9. |+| 5 | NC | unconnected | This pin is not connected to silicon. |+| 6 | VC7 | input | Sense voltage input for the seventh cell from the bottom of the stack, balance current input for cell 7, and return balance current for cell 8. |+| 7 | NC | unconnected | This pin is not connected to silicon. |+| 8 | VC6 | input | Sense voltage input for the sixth cell from the bottom of the stack, balance current input for cell 6, and return balance current for cell 7. |+| 9 | NC | unconnected | This pin is not connected to silicon. |+| 10 | VC5 | input | Sense voltage input for the fifth cell from the bottom of the stack, balance current input for cell 5, and return balance current for cell 6. |+| 11 | NC | unconnected | This pin is not connected to silicon. |+| 12 | VC4 | input | Sense voltage input for the fourth cell from the bottom of the stack, balance current input for cell 4, and return balance current for cell 5. |+| 13 | VC3 | input | Sense voltage input for the third cell from the bottom of the stack, balance current input for cell 3, and return balance current for cell 4. |+| 14 | VC2 | input | Sense voltage input for the second cell from the bottom of the stack, balance current input for cell 2, and return balance current for cell 3. |+| 15 | VC1 | input | Sense voltage input for the first cell from the bottom of the stack, balance current input for cell 1, and return balance current for cell 2. |+| 16 | VC0 | input | Sense voltage input for the negative terminal of the first cell from the bottom of the stack, and return balance current for cell 1. |+| 17 | VSS | power_in | Device ground. |+| 18 | SRP | input | Analog input to the internal coulomb counter, connected to the top of the sense resistor, where a charging current produces a positive voltage at SRP relative to SRN and the differential voltage must stay within the ±200 mV range for current measurement. |+| 19 | NC | unconnected | This pin is not connected to silicon. |+| 20 | SRN | input | Analog input to the internal coulomb counter, connected to the bottom of the sense resistor, forming the differential pair with SRP. |+| 21 | TS1 | bidirectional | Thermistor input or general purpose ADC input (open-drain / analog I/O). |+| 22 | TS2 | bidirectional | Thermistor input that also functions as wakeup from SHUTDOWN, or general purpose ADC input; should be left floating if the device is to enter SHUTDOWN mode. |+| 23 | TS3 | bidirectional | Thermistor input or general purpose ADC input (open-drain / analog I/O). |+| 24 | REG18 | power_out | Internal 1.8 V LDO output, for internal use only. |+| 25 | ALERT | bidirectional | Multifunction pin that can be the ALERT output, HDQ I/O, thermistor input, general purpose ADC input, or general purpose digital output. |+| 26 | SCL | bidirectional | Multifunction pin that can be SCL or SPI_SCLK (open-drain I/O). |+| 27 | SDA | bidirectional | Multifunction pin that can be SDA or SPI_MISO (open-drain I/O). |+| 28 | HDQ | bidirectional | Multifunction pin that can be HDQ I/O, SPI_MOSI, thermistor input, general purpose ADC input, or general purpose digital output. |+| 29 | CFETOFF | bidirectional | Multifunction pin that can be CFETOFF, SPI_CS, thermistor input, general purpose ADC input, or general purpose digital output. |+| 30 | DFETOFF | bidirectional | Multifunction pin that can be DFETOFF or BOTHOFF, thermistor input, general purpose ADC input, or general purpose digital output. |+| 31 | DCHG | bidirectional | Multifunction pin that can be DCHG, thermistor input, general purpose ADC input, or general purpose digital output. |+| 32 | DDSG | bidirectional | Multifunction pin that can be DDSG, thermistor input, general purpose ADC input, or general purpose digital output. |+| 33 | RST_SHUT | input | Digital input for reset or shutdown; it should be driven low during normal operation, and if held high for 1 second the device enters SHUTDOWN mode. |+| 34 | REG2 | power_out | Second LDO (REG2) output, programmable to 1.8 V, 2.5 V, 3.0 V, 3.3 V, or 5.0 V. |+| 35 | REG1 | power_out | First LDO (REG1) output, programmable to 1.8 V, 2.5 V, 3.0 V, 3.3 V, or 5.0 V. |+| 36 | REGIN | input | Input pin for the REG1 and REG2 LDOs. |+| 37 | BREG | output | Base control signal for an external preregulator transistor. |+| 38 | FUSE | bidirectional | Fuse sense and drive pin, intended to drive the gate of an NFET used to blow a chemical fuse. |+| 39 | PDSG | output | Predischarge PFET control output. |+| 40 | PCHG | output | Precharge PFET control output. |+| 41 | LD | bidirectional | Load detect pin. |+| 42 | PACK | input | Pack sense input pin. |+| 43 | DSG | output | NMOS discharge FET drive output pin. |+| 44 | NC | unconnected | This pin is not connected to silicon. |+| 45 | CHG | output | NMOS charge FET drive output pin. |+| 46 | CP1 | bidirectional | Charge pump capacitor pin. |+| 47 | BAT | power_in | Primary power supply input pin. |+| 48 | VC10 | input | Sense voltage input for the tenth cell from the bottom of the stack, balance current input for cell 10, and top-of-stack measurement point. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TQFP-48(7x7) |+| Category | Power Management (PMIC) |+| Pins | 48 |++## CAD (KiCad official)++- Symbol: `BQ7694204PFBR`+- Footprint: `Package_QFP:TQFP-48_7x7mm_P0.5mm`+- 3D model: TQFP-48(7x7) (KiCad packages3D, STEP)+- 3D model files: `bq7694204pfbr-etched.step` / `bq7694204pfbr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bq7694204pfbr.step` / `bq7694204pfbr.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/bq76942) (85 pp, sha256 `a976a88e92abb957`, retrieved 2026-10-08, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/bq7694204pfbr-datasheet.pdf)
page.jsonadded+440@@ -0,0 +1,440 @@+{+ "slug": "bq7694204pfbr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Battery Management, TQFP-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "bq7694204pfbr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "bq7694204pfbr.kicad_sym",+ "bq7694204pfbr.kicad_mod",+ "bq7694204pfbr.glb",+ "bq7694204pfbr.step",+ "bq7694204pfbr.lbr",+ "docs/hero.png",+ "docs/bq7694204pfbr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "bq7694204pfbr-hero.glb",+ "bq7694204pfbr-hero.overlay.json"+ ],+ "component": {+ "mpn": "BQ7694204PFBR",+ "manufacturer": "Texas Instruments",+ "package": "TQFP-48(7x7)",+ "pin_count": 48,+ "category": "Power Management (PMIC)",+ "subcategory": "Battery Management",+ "datasheet": "https://www.ti.com/cn/lit/gpn/bq76942",+ "parts": {+ "symbol": "bq7694204pfbr.kicad_sym",+ "footprint": "bq7694204pfbr.kicad_mod",+ "model_3d": "bq7694204pfbr-hero.glb",+ "model_3d_plain": "bq7694204pfbr.glb",+ "model_3d_step": "bq7694204pfbr-etched.step",+ "model_3d_step_plain": "bq7694204pfbr.step",+ "lbr": "bq7694204pfbr.lbr"+ },+ "distributor_links": {+ "lcsc": "C2873631",+ "digikey": "296-BQ7694204PFBRTR-ND",+ "mouser": "595-BQ7694204PFBR"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T17:10:05Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-BQ7694204PFBRTR-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-BQ7694204PFBR",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "NC",+ "type": "unconnected",+ "description": "This pin is not connected to silicon."+ },+ {+ "number": "2",+ "name": "VC9",+ "type": "input",+ "description": "Sense voltage input for the ninth cell from the bottom of the stack, balance current input for cell 9, and return balance current for cell 10."+ },+ {+ "number": "3",+ "name": "NC",+ "type": "unconnected",+ "description": "This pin is not connected to silicon."+ },+ {+ "number": "4",+ "name": "VC8",+ "type": "input",+ "description": "Sense voltage input for the eighth cell from the bottom of the stack, balance current input for cell 8, and return balance current for cell 9."+ },+ {+ "number": "5",+ "name": "NC",+ "type": "unconnected",+ "description": "This pin is not connected to silicon."+ },+ {+ "number": "6",+ "name": "VC7",+ "type": "input",+ "description": "Sense voltage input for the seventh cell from the bottom of the stack, balance current input for cell 7, and return balance current for cell 8."+ },+ {+ "number": "7",+ "name": "NC",+ "type": "unconnected",+ "description": "This pin is not connected to silicon."+ },+ {+ "number": "8",+ "name": "VC6",+ "type": "input",+ "description": "Sense voltage input for the sixth cell from the bottom of the stack, balance current input for cell 6, and return balance current for cell 7."+ },+ {+ "number": "9",+ "name": "NC",+ "type": "unconnected",+ "description": "This pin is not connected to silicon."+ },+ {+ "number": "10",+ "name": "VC5",+ "type": "input",+ "description": "Sense voltage input for the fifth cell from the bottom of the stack, balance current input for cell 5, and return balance current for cell 6."+ },+ {+ "number": "11",+ "name": "NC",+ "type": "unconnected",+ "description": "This pin is not connected to silicon."+ },+ {+ "number": "12",+ "name": "VC4",+ "type": "input",+ "description": "Sense voltage input for the fourth cell from the bottom of the stack, balance current input for cell 4, and return balance current for cell 5."+ },+ {+ "number": "13",+ "name": "VC3",+ "type": "input",+ "description": "Sense voltage input for the third cell from the bottom of the stack, balance current input for cell 3, and return balance current for cell 4."+ },+ {+ "number": "14",+ "name": "VC2",+ "type": "input",+ "description": "Sense voltage input for the second cell from the bottom of the stack, balance current input for cell 2, and return balance current for cell 3."+ },+ {+ "number": "15",+ "name": "VC1",+ "type": "input",+ "description": "Sense voltage input for the first cell from the bottom of the stack, balance current input for cell 1, and return balance current for cell 2."+ },+ {+ "number": "16",+ "name": "VC0",+ "type": "input",+ "description": "Sense voltage input for the negative terminal of the first cell from the bottom of the stack, and return balance current for cell 1."+ },+ {+ "number": "17",+ "name": "VSS",+ "type": "power_in",+ "description": "Device ground."+ },+ {+ "number": "18",+ "name": "SRP",+ "type": "input",+ "description": "Analog input to the internal coulomb counter, connected to the top of the sense resistor, where a charging current produces a positive voltage at SRP relative to SRN and the differential voltage must stay within the ±200 mV range for current measurement."+ },+ {+ "number": "19",+ "name": "NC",+ "type": "unconnected",+ "description": "This pin is not connected to silicon."+ },+ {+ "number": "20",+ "name": "SRN",+ "type": "input",+ "description": "Analog input to the internal coulomb counter, connected to the bottom of the sense resistor, forming the differential pair with SRP."+ },+ {+ "number": "21",+ "name": "TS1",+ "type": "bidirectional",+ "description": "Thermistor input or general purpose ADC input (open-drain / analog I/O)."+ },+ {+ "number": "22",+ "name": "TS2",+ "type": "bidirectional",+ "description": "Thermistor input that also functions as wakeup from SHUTDOWN, or general purpose ADC input; should be left floating if the device is to enter SHUTDOWN mode."+ },+ {+ "number": "23",+ "name": "TS3",+ "type": "bidirectional",+ "description": "Thermistor input or general purpose ADC input (open-drain / analog I/O)."+ },+ {+ "number": "24",+ "name": "REG18",+ "type": "power_out",+ "description": "Internal 1.8 V LDO output, for internal use only."+ },+ {+ "number": "25",+ "name": "ALERT",+ "type": "bidirectional",+ "description": "Multifunction pin that can be the ALERT output, HDQ I/O, thermistor input, general purpose ADC input, or general purpose digital output."+ },+ {+ "number": "26",+ "name": "SCL",+ "type": "bidirectional",+ "description": "Multifunction pin that can be SCL or SPI_SCLK (open-drain I/O)."+ },+ {+ "number": "27",+ "name": "SDA",+ "type": "bidirectional",+ "description": "Multifunction pin that can be SDA or SPI_MISO (open-drain I/O)."+ },+ {+ "number": "28",+ "name": "HDQ",+ "type": "bidirectional",+ "description": "Multifunction pin that can be HDQ I/O, SPI_MOSI, thermistor input, general purpose ADC input, or general purpose digital output."+ },+ {+ "number": "29",+ "name": "CFETOFF",+ "type": "bidirectional",+ "description": "Multifunction pin that can be CFETOFF, SPI_CS, thermistor input, general purpose ADC input, or general purpose digital output."+ },+ {+ "number": "30",+ "name": "DFETOFF",+ "type": "bidirectional",+ "description": "Multifunction pin that can be DFETOFF or BOTHOFF, thermistor input, general purpose ADC input, or general purpose digital output."+ },+ {+ "number": "31",+ "name": "DCHG",+ "type": "bidirectional",+ "description": "Multifunction pin that can be DCHG, thermistor input, general purpose ADC input, or general purpose digital output."+ },+ {+ "number": "32",+ "name": "DDSG",+ "type": "bidirectional",+ "description": "Multifunction pin that can be DDSG, thermistor input, general purpose ADC input, or general purpose digital output."+ },+ {+ "number": "33",+ "name": "RST_SHUT",+ "type": "input",+ "description": "Digital input for reset or shutdown; it should be driven low during normal operation, and if held high for 1 second the device enters SHUTDOWN mode."+ },+ {+ "number": "34",+ "name": "REG2",+ "type": "power_out",+ "description": "Second LDO (REG2) output, programmable to 1.8 V, 2.5 V, 3.0 V, 3.3 V, or 5.0 V."+ },+ {+ "number": "35",+ "name": "REG1",+ "type": "power_out",+ "description": "First LDO (REG1) output, programmable to 1.8 V, 2.5 V, 3.0 V, 3.3 V, or 5.0 V."+ },+ {+ "number": "36",+ "name": "REGIN",+ "type": "input",+ "description": "Input pin for the REG1 and REG2 LDOs."+ },+ {+ "number": "37",+ "name": "BREG",+ "type": "output",+ "description": "Base control signal for an external preregulator transistor."+ },+ {+ "number": "38",+ "name": "FUSE",+ "type": "bidirectional",+ "description": "Fuse sense and drive pin, intended to drive the gate of an NFET used to blow a chemical fuse."+ },+ {+ "number": "39",+ "name": "PDSG",+ "type": "output",+ "description": "Predischarge PFET control output."+ },+ {+ "number": "40",+ "name": "PCHG",+ "type": "output",+ "description": "Precharge PFET control output."+ },+ {+ "number": "41",+ "name": "LD",+ "type": "bidirectional",+ "description": "Load detect pin."+ },+ {+ "number": "42",+ "name": "PACK",+ "type": "input",+ "description": "Pack sense input pin."+ },+ {+ "number": "43",+ "name": "DSG",+ "type": "output",+ "description": "NMOS discharge FET drive output pin."+ },+ {+ "number": "44",+ "name": "NC",+ "type": "unconnected",+ "description": "This pin is not connected to silicon."+ },+ {+ "number": "45",+ "name": "CHG",+ "type": "output",+ "description": "NMOS charge FET drive output pin."+ },+ {+ "number": "46",+ "name": "CP1",+ "type": "bidirectional",+ "description": "Charge pump capacitor pin."+ },+ {+ "number": "47",+ "name": "BAT",+ "type": "power_in",+ "description": "Primary power supply input pin."+ },+ {+ "number": "48",+ "name": "VC10",+ "type": "input",+ "description": "Sense voltage input for the tenth cell from the bottom of the stack, balance current input for cell 10, and top-of-stack measurement point."+ }+ ],+ "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: The pinout is the family-wide BQ76942 TQFP (PFB) table; the datasheet does not publish a separate pi; BQ7694204 is the SPI, CRC-enabled variant with REG1 default 3.3 V (device comparison table). Pins 26; Pin types are mapped to KiCad ERC classes from the datasheet's I/O and TYPE columns: the I/O multifu"+ ],+ "pages_sent": 26,+ "cost_usd": 0.1769,+ "at": "2026-10-08T17:09:42"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/bq76942",+ "pages": 85,+ "sha256": "a976a88e92abb957",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 48,+ "described": 48,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "bq7694204pfbr.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 9,+ 9,+ 1.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "14ca7676e4932e92f0eca0c6d56ce3018cd28a2531204a70ab7bbacb3eeb3cf5",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "bq7694204pfbr-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 9,+ 9,+ 1.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "14e5d72db9effbf41512453adfd4439dd3229893f273644439fd024430f435c0",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}