Loads when you scroll to it. Unloads after 5 minutes in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

PCB Footprint

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Loads when you scroll to it. Unloads after 5 minutes in the background.
Download PDF
Contents

README

markdown

BQ7721606PWR

Texas Instruments · Battery Management · TSSOP-24

BQ7721606PWR from Texas Instruments, in a TSSOP-24. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 NC unconnected No electrical connection; can be left floating.
2 VDD power_in Power supply input; operating range 5V to 75V.
3 V16 input Cell 16 positive voltage detection input from battery pack bottom (0V to 5V per cell).
4 V15 input Cell 15 positive voltage detection input from battery pack bottom (0V to 5V per cell).
5 V14 input Cell 14 positive voltage detection input from battery pack bottom (0V to 5V per cell).
6 V13 input Cell 13 positive voltage detection input from battery pack bottom (0V to 5V per cell).
7 V12 input Cell 12 positive voltage detection input from battery pack bottom (0V to 5V per cell).
8 V11 input Cell 11 positive voltage detection input from battery pack bottom (0V to 5V per cell).
9 V10 input Cell 10 positive voltage detection input from battery pack bottom (0V to 5V per cell).
10 V9 input Cell 9 positive voltage detection input from battery pack bottom (0V to 5V per cell).
11 V8 input Cell 8 positive voltage detection input from battery pack bottom (0V to 5V per cell).
12 V7 input Cell 7 positive voltage detection input from battery pack bottom (0V to 5V per cell).
13 V6 input Cell 6 positive voltage detection input from battery pack bottom (0V to 5V per cell).
14 V5 input Cell 5 positive voltage detection input from battery pack bottom (0V to 5V per cell).
15 NC unconnected No electrical connection; can be left floating.
16 NC unconnected No electrical connection; can be left floating.
17 V4 input Cell 4 positive voltage detection input from battery pack bottom (0V to 5V per cell).
18 V3 input Cell 3 positive voltage detection input from battery pack bottom (0V to 5V per cell).
19 V2 input Cell 2 positive voltage detection input from battery pack bottom (0V to 5V per cell).
20 V1 input Cell 1 positive voltage detection input from battery pack bottom (0V to 5V relative to VSS).
21 VSS power_in Ground connection to IC and battery pack lowest cell negative terminal.
22 COUT output Output drive for overvoltage, open circuit, undertemperature and overtemperature faults with high-level active 6V drive capability.
23 DOUT output Output drive for undervoltage, open circuit, undertemperature and overtemperature faults with high-level active 6V drive capability.
24 TS input Temperature sensor input (0V to 1.5V range); connect via 10kΩ resistor to VSS when unused.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSSOP-24
Category Power Management (PMIC)
Pins 24

CAD (KiCad official)

  • Symbol: BQ7721606PWR
  • Footprint: Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm
  • 3D model: TSSOP-24 (KiCad packages3D, STEP)
  • 3D model files: bq7721606pwr-etched.step / bq7721606pwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bq7721606pwr.step / bq7721606pwr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (29 pp, sha256 090af0809348e250, retrieved 2026-09-23, 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