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BQ34Z100PWR-R2 Part Verification

Date: 2026-07-23

Scope

Reviewed available part metadata, symbol terminals, PCB footprint, and pin descriptions for the Flux part project BQ34Z100PWR-R2 against the official Texas Instruments datasheet.

Official datasheet used:

Available Part Metadata in Flux

Table

Field	Current value observed
Project / part name	BQ34Z100PWR-R2
Description	Battery Management Multi-chemistry Impedance Track stand-alone fuel gauge
Manufacturer Part Number	BQ34Z100PWR-R2
Manufacturer	Texas Instruments
Terminal / pin count	14
Part Type	Integrated Circuits
Part sub-type	Logic
Type-specific values	`icType = Logic`, `logicFunction = AND`
Datasheet URL	`https://www.arrow.com/en/products/bq34z100pwr-r2/texas-instruments?region=nac`
Designator Prefix	IC
Current footprint asset	`SOP65P640X120-14N.kicad_mod`
3D model asset	`BQ34Z100PWR-R2.stp`

Datasheet Identity and Key Specs

Source: Texas Instruments, BQ34Z100-R2 Wide Range Fuel Gauge with Impedance Track™ Technology.

Table

Spec	Datasheet value
Function	Wide-range, stand-alone fuel gauge with Impedance Track™ technology
Supported chemistries	Li-ion, LiFePO₄, PbA, NiMH, NiCd
Supported battery voltage	3 V to 16.7 kV with external voltage translation
Interfaces	I²C target, HDQ target, direct LED outputs, ALERT/output functionality
Authentication	SHA-1 / HMAC
Capacity range	Up to 7000 Ah with standard configuration options
Current range	Up to 8160 A with standard configuration options
Recommended VREGIN	2.7 V to 4.5 V unrestricted; 2.45 V to 2.7 V without flash writes
BAT input range	VSS - 0.125 V to 5 V recommended
SRP/SRN range	VSS - 0.125 V to 0.125 V recommended; ±0.125 V differential coulomb-counter range
REG25 output	2.5 V nominal internal LDO output
Typical current	NORMAL <145 µA, SLEEP <84 µA, FULLSLEEP <30 µA
Operating temperature	-40°C to 85°C
Package	TSSOP (PW), 14 pins
TI package drawing	PW0014A
Body size nominal	5.00 mm × 4.40 mm
MSL / peak reflow	Level-2, 260°C, 1 year
Part marking	34Z100

Datasheet Pin Table vs Flux Symbol

Table

Pin #	Datasheet name	Datasheet type	Datasheet description summary	Flux terminal present?	Flux pin type / description status
1	P2	O	LED 2 or not used; connect to VSS if unused	Yes: P2	Pin Number correct; Pin Type is Unspecified; no Pin Description observed
2	VEN	O	Active-high voltage translation enable; may float or tie to VSS if unused	Yes: VEN	Pin Number correct; Pin Type is Unspecified; no Pin Description observed
3	P1	O	LED 1 / single-LED driver function; connect to VSS if unused	Yes: P1	Pin Number correct; Pin Type is Unspecified; no Pin Description observed
4	BAT	I	Translated battery-voltage input	Yes: BAT	Pin Number correct; Pin Type is Unspecified; no Pin Description observed
5	CE	I	Chip enable; internal LDO disconnected from REGIN when low	Yes: CE	Pin Number correct; Pin Type is Unspecified; no Pin Description observed
6	REGIN	P	Internal LDO input; 0.1 µF ceramic to VSS	Yes: REGIN	Pin Number correct; Pin Type is Unspecified; no Pin Description observed
7	REG25	P	2.5 V LDO output; 1 µF ceramic to VSS	Yes: REG25	Pin Number correct; Pin Type is Unspecified; no Pin Description observed
8	VSS	P	Device ground	Yes: VSS	Pin Number correct; Pin Type is Unspecified; no Pin Description observed
9	SRP	I	Coulomb-counter analog sense input, near BAT-	Yes: SRP	Pin Number correct; Pin Type is Unspecified; no Pin Description observed
10	SRN	I	Coulomb-counter analog sense input, near PACK-	Yes: SRN	Pin Number correct; Pin Type is Unspecified; no Pin Description observed
11	P6/TS	I	Pack thermistor voltage sense; 103AT-type thermistor	Yes: P6/TS	Pin Number correct; Pin Type is Unspecified; no Pin Description observed
12	P5/HDQ	I/O	Open-drain HDQ target line; may float or tie VSS if unused	Yes: P5/HDQ	Pin Number correct; Pin Type is Unspecified; no Pin Description observed
13	P4/SCL	I	I²C SCL target input, typical 10 kΩ pullup; LED 4 in four-LED mode	Yes: P4/SCL	Pin Number correct; Pin Type is Unspecified; no Pin Description observed
14	P3/SDA	I/O	Open-drain I²C SDA target data, typical 10 kΩ pullup; LED 3 in four-LED mode	Yes: P3/SDA	Pin Number correct; Pin Type is Unspecified; no Pin Description observed

Symbol result

Pin count matches the datasheet: 14 / 14.
Pin names and pin numbers match the TI datasheet.
The schematic symbol uses left-side pins 1–7 and right-side pins 8–14, matching the datasheet pinout order convention for the 14-pin TSSOP view.
Main symbol metadata is incomplete: all observed terminal Pin Type properties are Unspecified, and no terminal Pin Description properties were observed.

Footprint vs Datasheet

Datasheet package / land-pattern values

Table

Feature	TI datasheet value
Package	PW0014A TSSOP, 14 pins, 1.2 mm max height
Lead pitch	0.65 mm
Body size	4.9–5.1 mm length × 4.3–4.5 mm width
Overall width	6.2–6.6 mm
Lead width	0.17–0.30 mm
Lead foot length	0.50–0.75 mm
Example land pad count	14
Example land pad size	1.5 mm × 0.45 mm
Example land pitch	0.65 mm
Example land row center/span reference	5.8 mm

Flux footprint observed

From SOP65P640X120-14N.kicad_mod:

Table

Feature	Flux footprint value
Pad count	14
Pad pitch	0.65 mm
Pad size	0.45 mm × 1.475 mm
Pad row centers	±2.938 mm, center-to-center span 5.876 mm
Fab body outline	4.4 mm × 5.0 mm
Courtyard	7.85 mm × 5.6 mm
Pin-1 indication	Fab chamfer plus silkscreen marker near pad 1
3D model	Present: `BQ34Z100PWR-R2.stp`

Footprint result

The footprint is compatible with the package family and pin count: 14-pin 0.65 mm-pitch TSSOP/PW.
Body outline matches the nominal TI body size: 5.0 mm × 4.4 mm.
Pad pitch matches: 0.65 mm.
Pad width matches TI example: 0.45 mm.
Pad length is slightly short versus TI example: 1.475 mm observed vs 1.5 mm datasheet example. Difference is 0.025 mm and is likely a library/rounding variation, but it is not an exact match to the datasheet example land pattern.
Pad row center span is slightly wider than the TI example reference: 5.876 mm observed vs 5.8 mm datasheet example. Difference is 0.076 mm. This is small but should be checked against the chosen PCB assembly house land-pattern preference if exact TI example geometry is required.
The footprint file name begins with SOP rather than TSSOP/PW, but the encoded geometry (65P640X120-14N) is consistent with a 0.65 mm-pitch, ~6.4 mm overall-width, 1.2 mm-height 14-pin TSSOP/PW package.

Mismatches and Issues Flagged

Table

Severity	Area	Finding	Recommendation
High	Metadata	Current Datasheet URL points to an Arrow product page, not the official TI datasheet PDF/GPN page.	Replace with official TI URL: `https://www.ti.com/lit/ds/symlink/bq34z100-r2.pdf` or `https://www.ti.com/lit/gpn/bq34z100-r2`.
High	Metadata	Part sub-type / type-specific values classify the IC as `Logic` and `logicFunction = AND`, which does not match a battery fuel gauge / battery monitor.	Change classification to a battery-management / fuel-gauge / power-management IC classification where available.
Medium	Symbol pin metadata	All observed terminal `Pin Type` values are `Unspecified`, despite datasheet types O, I, I/O, and P.	Populate pin types from the datasheet table. Suggested: P2/P1/VEN = Output; BAT/CE/SRP/SRN/P6/TS/P4/SCL = Input; P5/HDQ/P3/SDA = Bi-Directional/Open Drain where supported; REGIN = Power In; REG25 = Power Out; VSS = Ground.
Medium	Symbol pin descriptions	No terminal `Pin Description` properties were observed.	Add datasheet-backed pin descriptions for clarity and ERC review quality.
Low	Footprint naming	Footprint asset name uses `SOP...` rather than a direct `TSSOP/PW0014A` naming convention.	Rename or annotate package as TSSOP/PW0014A to avoid package ambiguity.
Low	Footprint geometry	Pad length and row-span are close but not exact to TI example land pattern.	Accept if IPC/library standard is intended; otherwise revise to TI example 1.5 mm × 0.45 mm pads and 5.8 mm row-span reference.

Overall Assessment

The critical electrical pin mapping is correct: the Flux symbol has the correct 14 pin names and pin numbers for the TI BQ34Z100-R2/BQ34Z100PWR-R2 datasheet. The footprint is broadly correct for the 14-pin PW/TSSOP package and should be manufacturable, but it is not an exact copy of TI's example land pattern. The main issues are metadata quality: datasheet link, part classification, pin types, and pin descriptions should be corrected before publishing or using this as a trusted library part.

Scope
Available Part Metadata in Flux
Datasheet Identity and Key Specs
Datasheet Pin Table vs Flux Symbol
Symbol result
Footprint vs Datasheet
Datasheet package / land-pattern values
Flux footprint observed
Footprint result
Mismatches and Issues Flagged
Overall Assessment

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