component
BQ7790512PWR
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Texas Instruments Battery Management, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+57@@ -0,0 +1,57 @@+# BQ7790512PWR++**Texas Instruments** · Battery Management · TSSOP-20++BQ7790512PWR from Texas Instruments, in a TSSOP-20. 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 | VDD | power_in | Supply voltage input with recommended operating range 3 V to 25 V and power-on reset threshold at 4 V. |+| 2 | AVDD | power_out | Regulated analog supply output for capacitor connection only, typical operating range 2.1 V to 3.25 V. |+| 3 | VC5 | input | Cell 5 voltage sense input with 0 V to 5 V recommended operating range and programmable overvoltage threshold 3 V to 4.575 V. |+| 4 | VC4 | input | Cell 4 voltage sense input with 0 V to 5 V recommended operating range and programmable overvoltage threshold 3 V to 4.575 V. |+| 5 | VC3 | input | Cell 3 voltage sense input with 0 V to 5 V recommended operating range and programmable overvoltage threshold 3 V to 4.575 V. |+| 6 | VC2 | input | Cell 2 voltage sense input with 0 V to 5 V recommended operating range and programmable overvoltage threshold 3 V to 4.575 V. |+| 7 | VC1 | input | Cell 1 voltage sense input with 0 V to 5 V recommended operating range and programmable overvoltage threshold 3 V to 4.575 V. |+| 8 | AVSS | power_in | Analog ground reference for low-current analog circuits. |+| 9 | SRP | input | Current sense positive input connecting to battery side of sense resistor with -0.2 V to 0.8 V recommended operating range. |+| 10 | SRN | input | Current sense negative input connecting to PACK- side of sense resistor with -0.2 V to 0.8 V recommended operating range. |+| 11 | DSG | output | Discharge FET driver output, 0 V to 16 V, switches off during undervoltage, open-wire, overcurrent, and temperature discharge faults. |+| 12 | CHGU | output | Charge FET signal for upper stacked device configuration, 0 V to 16 V range, connects to CTRC pin of lower device. |+| 13 | CHG | output | Charge FET driver output for single or bottom stacked device, 0 V to 16 V range, switches off during overvoltage, overcurrent, and temperature faults. |+| 14 | LD | input | Load removal detection input for PACK- terminal with recommended operating range 0 V to 16 V and absolute maximum -30 V to 20 V. |+| 15 | TS | input | Thermistor measurement input with 0 V to VTB recommended range for temperature-based charge and discharge protection. |+| 16 | VTB | output | Thermistor bias output voltage with 0 V to 3 V range, supplies bias current for external NTC thermistor pull-up resistor. |+| 17 | CCFG | input | Cell configuration input from 0 V to AVDD range for selecting 3-cell, 4-cell, or 5-cell pack mode. |+| 18 | CTRC | input | Charge FET override control input with 0 V to (VDD + 5 V) range for external enabling or disabling of CHG driver. |+| 19 | CTRD | input | Discharge FET override control input with 0 V to (VDD + 5 V) range for external enabling or disabling of DSG driver. |+| 20 | DVSS | power_in | Digital ground reference for high-current digital circuits. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-20 |+| Category | Power Management (PMIC) |+| Pins | 20 |++## CAD (KiCad official)++- Symbol: `BQ7790512PWR`+- Footprint: `Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm`+- 3D model: TSSOP-20 (KiCad packages3D, STEP)+- 3D model files: `bq7790512pwr-etched.step` / `bq7790512pwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bq7790512pwr.step` / `bq7790512pwr.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/bq77905) (48 pp, sha256 `f04162b24e7e7c22`, retrieved 2026-09-24, 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 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-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/bq7790512pwr-datasheet.pdf)
page.jsonadded+213@@ -0,0 +1,213 @@+{+ "slug": "bq7790512pwr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Battery Management, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "bq7790512pwr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "bq7790512pwr.kicad_sym",+ "bq7790512pwr.kicad_mod",+ "bq7790512pwr.glb",+ "bq7790512pwr.step",+ "bq7790512pwr.lbr",+ "docs/hero.png",+ "docs/bq7790512pwr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "BQ7790512PWR",+ "manufacturer": "Texas Instruments",+ "package": "TSSOP-20",+ "pin_count": 20,+ "category": "Power Management (PMIC)",+ "subcategory": "Battery Management",+ "datasheet": "https://www.ti.com/cn/lit/gpn/bq77905",+ "parts": {+ "symbol": "bq7790512pwr.kicad_sym",+ "footprint": "bq7790512pwr.kicad_mod",+ "model_3d": "bq7790512pwr-etched.glb",+ "model_3d_plain": "bq7790512pwr.glb",+ "model_3d_step": "bq7790512pwr-etched.step",+ "model_3d_step_plain": "bq7790512pwr.step",+ "lbr": "bq7790512pwr.lbr"+ },+ "distributor_links": {+ "lcsc": "C555146"+ },+ "pins": [+ {+ "number": "1",+ "name": "VDD",+ "type": "power_in",+ "description": "Supply voltage input with recommended operating range 3 V to 25 V and power-on reset threshold at 4 V."+ },+ {+ "number": "2",+ "name": "AVDD",+ "type": "power_out",+ "description": "Regulated analog supply output for capacitor connection only, typical operating range 2.1 V to 3.25 V."+ },+ {+ "number": "3",+ "name": "VC5",+ "type": "input",+ "description": "Cell 5 voltage sense input with 0 V to 5 V recommended operating range and programmable overvoltage threshold 3 V to 4.575 V."+ },+ {+ "number": "4",+ "name": "VC4",+ "type": "input",+ "description": "Cell 4 voltage sense input with 0 V to 5 V recommended operating range and programmable overvoltage threshold 3 V to 4.575 V."+ },+ {+ "number": "5",+ "name": "VC3",+ "type": "input",+ "description": "Cell 3 voltage sense input with 0 V to 5 V recommended operating range and programmable overvoltage threshold 3 V to 4.575 V."+ },+ {+ "number": "6",+ "name": "VC2",+ "type": "input",+ "description": "Cell 2 voltage sense input with 0 V to 5 V recommended operating range and programmable overvoltage threshold 3 V to 4.575 V."+ },+ {+ "number": "7",+ "name": "VC1",+ "type": "input",+ "description": "Cell 1 voltage sense input with 0 V to 5 V recommended operating range and programmable overvoltage threshold 3 V to 4.575 V."+ },+ {+ "number": "8",+ "name": "AVSS",+ "type": "power_in",+ "description": "Analog ground reference for low-current analog circuits."+ },+ {+ "number": "9",+ "name": "SRP",+ "type": "input",+ "description": "Current sense positive input connecting to battery side of sense resistor with -0.2 V to 0.8 V recommended operating range."+ },+ {+ "number": "10",+ "name": "SRN",+ "type": "input",+ "description": "Current sense negative input connecting to PACK- side of sense resistor with -0.2 V to 0.8 V recommended operating range."+ },+ {+ "number": "11",+ "name": "DSG",+ "type": "output",+ "description": "Discharge FET driver output, 0 V to 16 V, switches off during undervoltage, open-wire, overcurrent, and temperature discharge faults."+ },+ {+ "number": "12",+ "name": "CHGU",+ "type": "output",+ "description": "Charge FET signal for upper stacked device configuration, 0 V to 16 V range, connects to CTRC pin of lower device."+ },+ {+ "number": "13",+ "name": "CHG",+ "type": "output",+ "description": "Charge FET driver output for single or bottom stacked device, 0 V to 16 V range, switches off during overvoltage, overcurrent, and temperature faults."+ },+ {+ "number": "14",+ "name": "LD",+ "type": "input",+ "description": "Load removal detection input for PACK- terminal with recommended operating range 0 V to 16 V and absolute maximum -30 V to 20 V."+ },+ {+ "number": "15",+ "name": "TS",+ "type": "input",+ "description": "Thermistor measurement input with 0 V to VTB recommended range for temperature-based charge and discharge protection."+ },+ {+ "number": "16",+ "name": "VTB",+ "type": "output",+ "description": "Thermistor bias output voltage with 0 V to 3 V range, supplies bias current for external NTC thermistor pull-up resistor."+ },+ {+ "number": "17",+ "name": "CCFG",+ "type": "input",+ "description": "Cell configuration input from 0 V to AVDD range for selecting 3-cell, 4-cell, or 5-cell pack mode."+ },+ {+ "number": "18",+ "name": "CTRC",+ "type": "input",+ "description": "Charge FET override control input with 0 V to (VDD + 5 V) range for external enabling or disabling of CHG driver."+ },+ {+ "number": "19",+ "name": "CTRD",+ "type": "input",+ "description": "Discharge FET override control input with 0 V to (VDD + 5 V) range for external enabling or disabling of DSG driver."+ },+ {+ "number": "20",+ "name": "DVSS",+ "type": "power_in",+ "description": "Digital ground reference for high-current digital circuits."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [],+ "pages_sent": 48,+ "cost_usd": 0.5529,+ "at": "2026-09-24T05:18:24"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/bq77905",+ "pages": 48,+ "sha256": "f04162b24e7e7c22",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 20,+ "described": 20,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}