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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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Symbol & Footprint

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Datasheet

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Contents

README

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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 (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