Part Datasheet Audit

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Part Audit

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Part Audit Scope
Audit of the published part project against the official Texas Instruments BQ34Z100-G1 Wide Range Fuel Gauge with Impedance Track Technology, Rev. D datasheet and TI package drawing PW0014A.
Existing Part Information Key Datasheet Specifications
  • Function: standalone multi-chemistry battery fuel gauge using Impedance Track technology.
  • Supported chemistries: Li-ion, LiFePO4, lead-acid, NiMH, and NiCd.
  • Battery measurement range: 3 V to 65 V using an external voltage-translation circuit.
  • Standard configuration limits: battery capacity up to 29 Ah; charge/discharge current up to 3...

flux

Audit complete. The 14-pin names/numbers and TSSOP-14 footprint broadly match TI’s Rev. D datasheet, but the MPN/package metadata is incomplete, every pin lacks an electrical type and description, and the pad geometry differs slightly from TI’s current land-pattern example. The Datasheet URL was already populated, so it was not changed; the official TI URL is recorded in the Part Audit.
Open items
  • Existing MPN is BQ34Z100-G1, not the orderable BQ34Z100PW-G1.
  • Package metadata is missing.
  • Existing pads are 0.45 × 1.475 mm versus TI’s 0.45 × 1.50 mm example; row span is 5.876 mm versus 5.8 mm nominal.
Suggested next steps
  1. Correct the MPN and package properties.
  2. Populate all pin descriptions and electrical types.
  3. Normalize the footprint to TI PW0014A geometry.
  4. Replace the uploaded datasheet link with the official TI URL if manufacturer-hosted links are preferred.
Fix all audit issues
Correct metadata
Complete symbol metadata
Normalize footprint
Use official datasheet
Sign up to send
SRP
Pin Number
9
P5/HDQ
Pin Number
12
P4/SCL
Pin Number
13
REGIN
Pin Number
6
SRN
Pin Number
10
P6/TS
Pin Number
11
CE
Pin Number
5
VSS
Pin Number
8
BAT
Pin Number
4
P2
Pin Number
1
REG25
Pin Number
7
P1
Pin Number
3
VEN
Pin Number
2
P3/SDA
Pin Number
14

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Part Audit
Scope
Audit of the published part project against the official Texas Instruments BQ34Z100-G1 Wide Range Fuel Gauge with Impedance Track Technology, Rev. D datasheet and TI package drawing PW0014A.
Existing Part Information

Table

FieldExisting valueAudit result
Project/part nameBQ34Z100-G1Family name, not the full requested orderable MPN
Manufacturer Part NumberBQ34Z100-G1Mismatch/underspecified: orderable tube MPN is BQ34Z100PW-G1
ManufacturerTexas InstrumentsCorrect
DescriptionMulti-chemistry Impedance Track standalone fuel gauge / battery gas gauge; supports multiple chemistries, 3–65 V packs, up to 29 Ah and 32 A with standard configuration, I2C/HDQ, 14-pin TSSOPConsistent with datasheet
Part TypeIntegrated CircuitsAcceptable but broad
Designator PrefixICAcceptable
Package propertyMissingOmission: should identify TSSOP-14, TI PW/PW0014A, 0.65 mm pitch
Symbol terminal count14Correct
Footprint pad count14Correct
Datasheet URLGoogle-hosted uploaded PDFAlready populated; not changed because the request only called for updating when missing
PublishedYesInformational
Key Datasheet Specifications
  • Function: standalone multi-chemistry battery fuel gauge using Impedance Track technology.
  • Supported chemistries: Li-ion, LiFePO4, lead-acid, NiMH, and NiCd.
  • Battery measurement range: 3 V to 65 V using an external voltage-translation circuit.
  • Standard configuration limits: battery capacity up to 29 Ah; charge/discharge current up to 32 A.
  • REGIN recommended operating range: 2.7 V to 4.5 V without restrictions; 2.45 V to 2.7 V with no flash writes.
  • REGIN absolute maximum: -0.3 V to 5.5 V.
  • REG25 nominal output: 2.5 V; recommended external capacitor 1 uF, minimum 0.47 uF.
  • REGIN decoupling: 0.1 uF ceramic close to the device.
  • Typical current: 145 uA normal, 84 uA sleep, less than 30 uA full sleep.
  • Coulomb-counter differential input range: -125 mV to +125 mV between SRN and SRP.
  • Interfaces: I2C slave up to 400 kHz and HDQ single-wire slave; SDA and HDQ are open-drain.
  • Temperature: -40 C to +85 C operating free-air range.
  • Package: 14-pin TSSOP, TI PW0014A, 0.65 mm pitch, 1.2 mm maximum height, JEDEC MO-153.
  • Orderable BQ34Z100PW-G1: active, tube quantity 90, MSL 2 / 260 C, marking 34Z100.
Symbol Pin Cross-Check
All symbol pin names and numbers match TI Table 5-1.

Table

PinNameTI electrical typeTI function summaryExisting symbol issue
1P2OutputLED 2; if unused connect to VSSType unspecified; description missing
2VENOutputActive-high voltage-translation enableType unspecified; description missing
3P1OutputLED 1 / single-LED driveType unspecified; description missing
4BATInputTranslated battery-voltage inputType unspecified; description missing
5CEInputChip enable; low disconnects internal LDO from REGINType unspecified; description missing
6REGINPowerInternal LDO input; 0.1 uF to VSSType unspecified; description missing
7REG25Power2.5 V internal LDO output; 1 uF to VSSType unspecified; description missing
8VSSPower/groundDevice groundType unspecified; description missing
9SRPInputCoulomb-counter input, nearest BAT-Type unspecified; description missing
10SRNInputCoulomb-counter input, nearest PACK-Type unspecified; description missing
11P6/TSInputPack thermistor input; 103AT-type NTCType unspecified; description missing
12P5/HDQBidirectional open-drainHDQ slave communicationType unspecified; description missing
13P4/SCLInputI2C clock / LED 4; typical 10 kOhm pull-upType unspecified; description missing
14P3/SDABidirectional open-drainI2C data / LED 3; typical 10 kOhm pull-upType unspecified; description missing
Symbol conclusion: numbering and naming are correct, but all 14 terminals lack datasheet-backed descriptions and all 14 use Unspecified electrical type. This reduces ERC usefulness and discoverability.
Footprint Cross-Check
Matches
  • 14 pads, correctly mapped to pins 1 through 14.
  • 0.65 mm pitch.
  • Fab body is 4.4 mm x 5.0 mm, matching the nominal PW0014A body and fitting TI's 4.3–4.5 mm by 4.9–5.1 mm ranges.
  • Pin-1 identification exists through a fab chamfer and silkscreen extension.
  • Footprint/3D model targets a 1.2 mm-high TSSOP family.
Mismatches and omissions
  1. Package metadata missing: no explicit PW, PW0014A, TSSOP-14, or 0.65 mm-pitch package property.
  2. MPN underspecified: BQ34Z100-G1 identifies the device family; the audited orderable tube part is BQ34Z100PW-G1.
  3. Pad length differs from TI land-pattern example: existing pads are 0.45 mm x 1.475 mm; TI shows 0.45 mm x 1.50 mm. The difference is 0.025 mm in length.
  4. Opposing-row pad-center span differs: existing centers are at +/-2.938 mm, giving 5.876 mm; TI's land-pattern example indicates a nominal 5.8 mm span. Difference: 0.076 mm.
  5. Package-height metadata absent: TI specifies 1.2 mm maximum.
  6. Generic footprint naming: asset SOP65P640X120-14N is dimension-oriented and does not explicitly identify TI PW0014A.
The pad-size/span differences are small, but they are literal deviations from TI's current example land pattern and should be reviewed before certifying the footprint for production.
Datasheet Property Decision
The Datasheet URL property was already nonempty and points to an uploaded PDF, so it was intentionally preserved. The official TI URL above is confirmed and can replace the uploaded URL if the desired policy is to always prefer manufacturer-hosted sources rather than only fill missing fields.
  1. Change Manufacturer Part Number to BQ34Z100PW-G1 if this part is intended to represent the tube-packaged PW orderable device.
  2. Add package metadata: TSSOP-14 (PW/PW0014A), 0.65 mm pitch, 1.2 mm max height.
  3. Populate all terminal descriptions from TI Table 5-1.
  4. Assign terminal electrical types so ERC can distinguish outputs, inputs, power pins, ground, and bidirectional open-drain pins.
  5. Decide whether to normalize the land pattern exactly to TI's 0.45 x 1.50 mm pads and nominal 5.8 mm row span.
  6. Optionally replace the uploaded datasheet URL with the official TI URL for source stability and provenance.

  • Scope

  • Existing Part Information

  • Key Datasheet Specifications

  • Symbol Pin Cross-Check

  • Footprint Cross-Check

  • Matches

  • Mismatches and omissions

  • Datasheet Property Decision

  • Recommended Corrections

Documents

Assets

BQ34Z100PW-G1

BQ34Z100PW-G1 Symbol.svgDefault
BQ34Z100-G1-thumb.png

BQ34Z100-G1-thumb.png

BQ34Z100-G1-thumbThumbnail
BQ34Z100PW-G1

BQ34Z100PW-G1

BQ34Z100PW-G1.stp3D Model

BQ34Z100PW-G1

SOP65P640X120-14N.kicad_modFootprint

BQ34Z100-G1

BQ34Z100-G1 thumbnail
Multi-chemistry Impedance Track™ standalone fuel gauge | battery gas gauge
Fuel Gauge IC designed for battery monitoring and state-of-charge estimation using Impedance Track™ technology. It supports Li-ion, LiFePO4, PbA, NiMH, and NiCd batteries from 3 V to 65 V, charge/discharge currents up to 32 A, and communicates through I2C up to 400 kHz or HDQ. The device is housed in a 14-pin TSSOP package.
#FuelGauge #BatteryManagement #TexasInstruments #BQ34Z100G1 #I2C #HDQ #TSSOP

Properties

BQ34Z100-G1

Texas Instruments

Integrated Circuits

ti.com/lit/ds/symlink/bq34z100-g1.pdf

IC

parametric-v1

creativecommons.org/licenses/by/4.0/

14-TSSOP

Pricing & Availability

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