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Contents

Pinout
Key specifications
CAD (KiCad official)
Provenance

README

markdown

BQ7721611PWR

Texas Instruments · Battery Management · TSSOP-24

BQ7721611PWR from Texas Instruments, in a TSSOP-24. 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	Not electrically connected and can be left floating.
2	VDD	power_in	Power supply.
3	V16	input	Sense input for positive voltage of the sixteenth cell from the bottom of the stack.
4	V15	input	Sense input for positive voltage of the fifteenth cell from the bottom of the stack.
5	V14	input	Sense input for positive voltage of the fourteenth cell from the bottom of the stack.
6	V13	input	Sense input for positive voltage of the thirteenth cell from the bottom of the stack.
7	V12	input	Sense input for positive voltage of the twelfth cell from the bottom of the stack.
8	V11	input	Sense input for positive voltage of the eleventh cell from the bottom of the stack.
9	V10	input	Sense input for positive voltage of the tenth cell from the bottom of the stack.
10	V9	input	Sense input for positive voltage of the ninth cell from the bottom of the stack.
11	V8	input	Sense input for positive voltage of the eighth cell from the bottom of the stack.
12	V7	input	Sense input for positive voltage of the seventh cell from the bottom of the stack.
13	V6	input	Sense input for positive voltage of the sixth cell from the bottom of the stack.
14	V5	input	Sense input for positive voltage of the fifth cell from the bottom of the stack.
15	NC	unconnected	Not electrically connected and can be left floating.
16	NC	unconnected	Not electrically connected and can be left floating.
17	V4	input	Sense input for positive voltage of the fourth cell from the bottom of the stack.
18	V3	input	Sense input for positive voltage of the third cell from the bottom of the stack.
19	V2	input	Sense input for positive voltage of the second cell from the bottom of the stack.
20	V1	input	Sense input for positive voltage of the lowest cell in the stack.
21	VSS	power_in	Electrically connected to IC ground and negative terminal of the lowest cell in the stack.
22	COUT	output	Output drive for overvoltage, open wire, and overtemperature; can be left floating if not used.
23	DOUT	output	Output drive for undervoltage, open wire, and overtemperature; can be left floating if not used.
24	TS	input	Temperature sensor input; if not used, leave it unconnected.

Key specifications

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

CAD (KiCad official)

Symbol: BQ7721611PWR
Footprint: Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm
3D model: TSSOP-24 (KiCad packages3D, STEP)
3D model files: bq7721611pwr-etched.step / bq7721611pwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bq7721611pwr.step / bq7721611pwr.glb are the bare package body.

Provenance

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

Datasheet: Texas Instruments datasheet (26 pp, sha256 79959522e04d372f, retrieved 2026-10-03, tier: lcsc)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-4-5-20251001 (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