component
BQ7790511PWR
Public Made by Adomby adom
Texas Instruments Battery Management, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownBQ7790511PWR
Texas Instruments · Battery Management · TSSOP-20
BQ7790511PWR 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, recommended operating range 3-25V. |
| 2 | AVDD | power_out | Analog supply output for capacitive decoupling, maximum voltage 3V. |
| 3 | VC5 | input | Cell 5 voltage sense input with measurement range 0-5V. |
| 4 | VC4 | input | Cell 4 voltage sense input with measurement range 0-5V. |
| 5 | VC3 | input | Cell 3 voltage sense input with measurement range 0-5V. |
| 6 | VC2 | input | Cell 2 voltage sense input with measurement range 0-5V. |
| 7 | VC1 | input | Cell 1 voltage sense input with measurement range 0-5V. |
| 8 | AVSS | power_in | Analog ground reference for the device. |
| 9 | SRP | input | Current sense input connected to battery side of sense resistor, measurement range -0.2 to 0.8V. |
| 10 | SRN | input | Current sense input connected to PACK- side of sense resistor, measurement range -0.2 to 0.8V. |
| 11 | DSG | output | Discharge FET driver output with maximum output voltage 16V. |
| 12 | CHGU | output | Charge FET signal output for upper device in cascaded stack configuration, maximum voltage 16V. |
| 13 | CHG | output | Charge FET driver output for single device or bottom of stack configuration, maximum voltage 16V. |
| 14 | LD | input | PACK- load removal detection input with measurement range 0-16V. |
| 15 | TS | input | Thermistor measurement input for external temperature sensor, measurement range 0 to VTB. |
| 16 | VTB | output | Thermistor bias output voltage for external NTC thermistor, maximum voltage 3V. |
| 17 | CCFG | input | Cell in series configuration input with measurement range 0 to AVDD. |
| 18 | CTRC | input | CHG and DSG override control input, voltage range 0 to (VDD+5)V. |
| 19 | CTRD | input | CHG and DSG override control input, voltage range 0 to (VDD+5)V. |
| 20 | DVSS | power_in | Digital ground reference for the device. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-20 |
| Category | Power Management (PMIC) |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
BQ7790511PWR - Footprint:
Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm - 3D model: TSSOP-20 (KiCad packages3D, STEP)
- 3D model files:
bq7790511pwr-etched.step/bq7790511pwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bq7790511pwr.step/bq7790511pwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (48 pp, sha256
f04162b24e7e7c22, retrieved 2026-10-05, 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, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).