Part Data Review and Audit

flux

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Completed 9 design checks — found 1 issue.

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5/5 Create/update a project file with detailed audit findings and mismatches

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Done — I added the official TI datasheet URL to the part metadata and created the full audit in BQ25792RQMR Part Audit.
Key findings: the footprint pad count appears plausible because the TI RQM package land pattern uses 33 lands, but the datasheet logical pin table has 29 pins; terminals 30–33 should be documented as duplicated lands, not independent datasheet pins. The main mismatches are missing pin descriptions, all terminal pin types being unspecified, and ~QON potentially being a confusing name versus the datasheet’s QON.
adrian95

adrian95

Looking at the datasheet of this component, can you group together pins by their functions? for example for Power, VBUS, GND etc Also can you place them into their respective sections based on their functions NOTE: If you group them, can you not add the same pin if you already added them in a group? You should know which pin function is common for its function

flux

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Read 3 knowledge entries.

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I’ll group each existing terminal exactly once by its primary datasheet function, then set both the functional group and section properties on the symbol terminals and verify the result.

flux

2:14

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1/2 Assign each BQ25792 terminal to exactly one datasheet-based functional group and section

Thought for 35 sec

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2/2 Verify the updated terminal grouping properties

Read 1 knowledge entry.

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Read schematic.

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2/2 tasks completed.

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Done — I assigned every existing terminal to exactly one datasheet-based functional group and a broad section, then verified the updates.
Examples: VBUS pins are grouped as Power Input, GND as Ground, SCL/SDA as I2C Interface, D+/D− as USB Data Detection, BAT/BATP as battery-related groups, and SW/BTST pins under switching/driver groups. Duplicate package lands like STAT_2, VAC1_2, TS_2, and SDRV_2 were kept in their matching primary function group and described as duplicate lands, not separate logical pins.
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BQ25792RQMR Part Audit
Date: 2026-05-20
Sources Reviewed
  • Project: BQ25792RQMR
  • Official TI datasheet: https://www.ti.com/lit/ds/symlink/bq25792.pdf
  • Datasheet title: BQ25792 I2C Controlled, 1-4 Cell, 5-A Buck-Boost Battery Charger with Dual-Input Selector and USB PD 3.0 OTG Output
  • Datasheet revision: SLUSDG1C, Rev. C, June 2020 - Revised August 2022
  • Package addendum date observed: 13-Apr-2026
Project Metadata Reviewed
  • Project name: BQ25792RQMR
  • Description after update: Charger IC Lithium Ion/Polymer 29-VQFN-HR (4x4)
  • Datasheet URL property: added as https://www.ti.com/lit/ds/symlink/bq25792.pdf
  • Implementation Details property: updated with official datasheet URL and package summary
  • Assets present:
    • BQ25792RQMR Symbol.svg - default symbol/thumbnail
    • BQ25792RQMR.kicad_mod - footprint asset
    • BQ25792RQMR.stp - 3D model asset

Key Datasheet Specs

ParameterDatasheet value
FunctionI2C controlled buck-boost charger for 1-4 cell Li-ion / Li-polymer batteries
Charge current5 A, 10 mA resolution
Input operating voltage3.6 V to 24 V
Input absolute maximum30 V on VAC1, VAC2, VBUS when converter not switching
Battery charge voltage regulation range3 V to 18.8 V typical
OTG output voltage range2.8 V to 22 V, 10 mV resolution
OTG output current regulationUp to 3.32 A, 40 mA resolution
Switching frequencies750 kHz or 1.5 MHz
I2C address7-bit address 0x6B
I2C bus speedStandard mode up to 100 kbit/s and fast mode up to 400 kbit/s in serial interface text; electrical table also lists fSCL 1000 kHz
PackageVQFN-HR (RQM), 29 logical pins, 4 mm x 4 mm, 1 mm max height
Operating temperature-40 C to 85 C ambient; -40 C to 125 C junction recommended operating condition
MSL / reflowLevel-2-260C-1 YEAR
MarkingBQ25792
Datasheet Pin Table vs Current Symbol Terminals
The datasheet defines 29 logical pins. The package mechanical/land pattern shows 33X terminals/lands. The current Flux symbol exposes 33 terminal components, matching the land count rather than the 29 logical datasheet pin count.

Table

Datasheet pinDatasheet nameCurrent symbol terminal(s)Status
1STATSTAT_1 plus extra STAT_2 at symbol pin number 30Mismatch: extra terminal uses non-datasheet pin number 30
2-3VBUSVBUS_1, VBUS_2OK; split logical pin range represented as two pads
4BTST1BTST1OK
5REGNREGNOK
6D+D+OK
7D-D-OK
8VAC2VAC2OK
9VAC1VAC1_1 plus extra VAC1_2 at symbol pin number 31Mismatch: extra terminal uses non-datasheet pin number 31
10ACDRV2ACDRV2OK
11ACDRV1ACDRV1OK
12QON~QONAcceptable naming style; active-low marker may be misleading because datasheet calls it QON and describes low-duration functions, not a continuously active-low output
13CE~CEAcceptable active-low marker; datasheet states active-low charge enable
14SCLSCLOK
15SDASDAOK
16TSTS_1 plus extra TS_2 at symbol pin number 32Mismatch: extra terminal uses non-datasheet pin number 32
17ILIM_HIZILIM_HIZOK
18BATPBATPOK
19BTST2BTST2OK
20PROGPROGOK
21INT~INTAcceptable active-low/open-drain marker; datasheet says active-low 256 us interrupt pulse
22-23BATBAT_1, BAT_2OK; split logical pin range represented as two pads
24SDRVSDRV_1 plus extra SDRV_2 at symbol pin number 33Mismatch: extra terminal uses non-datasheet pin number 33
25SYSSYSOK
26SW2SW2OK
27GNDGNDOK
28SW1SW1OK
29PMIDPMIDOK
Footprint / Package Cross-Check
  • Datasheet package: RQM0029A, VQFN-HR, 29 logical pins, 4 mm x 4 mm, 1 mm max height.
  • Datasheet package/land-pattern callout includes 33X mechanical terminals/lands.
  • Project footprint asset exists: BQ25792RQMR.kicad_mod.
  • Project layout exposes 33 pad nodes, matching the datasheet mechanical/land-pattern 33X count.
  • The part project description currently matches the package family and size: 29-VQFN-HR (4x4).
Conclusion: the footprint pad count appears plausible for the TI RQM VQFN-HR package because the datasheet mechanical drawing uses 33X terminal/land callouts. The logical symbol pin-numbering is the main concern: Flux terminals 30-33 are not datasheet logical pin numbers and should be treated as duplicated lands of logical pins, not distinct IC pins.
Pin Description / Pin Type Cross-Check
Current symbol terminal properties show:
  • Part Type: Terminal
  • Pin Type: Unspecified
  • No populated Pin Description values on the terminal components
This is a metadata mismatch against the datasheet. The terminals should be enriched with datasheet pin descriptions and electrical pin types. Recommended pin type classification:

Table

Pin(s)Type recommendation
VBUS, BAT, PMID, SYS, REGN, GNDPower / ground as applicable
SW1, SW2, BTST1, BTST2, ACDRV1, ACDRV2, SDRVPower switching / driver pins; use passive or output where the part model supports it
D+, D-, SCL, SDABidirectional / communication
STAT, INTOpen-drain output
CE, QON, PROG, ILIM_HIZ, TS, BATP, VAC1, VAC2Input / analog input as applicable
Mismatches / Risks Flagged
  1. Datasheet URL was missing from accessible part metadata before this audit. It has now been added as a project-level Datasheet URL property and referenced in Implementation Details.
  2. Symbol exposes 33 terminals while datasheet logical pin table has 29 pins. This may be acceptable for the 33-land package implementation, but terminals 30-33 must be documented as duplicated lands tied to logical pins STAT, VAC1, TS, and SDRV. They should not be interpreted as datasheet pins 30-33.
  3. Pin descriptions are not populated. Every terminal currently lacks a datasheet-derived Pin Description and has Pin Type: Unspecified.
  4. Extra duplicated lands use non-datasheet pin numbers 30-33. If Flux supports duplicate pin numbers/jumpers for duplicated lands, these should preferably use the same logical pin numbers or be clearly marked as duplicate copper lands associated with pins 1, 9, 16, and 24.
  5. QON naming has an active-low marker in the symbol (~QON). The datasheet pin name is QON; it responds to low-duration actions but is not named with a bar. This is not necessarily electrically wrong, but it can confuse firmware/schematic users.
  6. No detailed pad geometry was available from the structured layout readout. The asset exists and pad count matches the datasheet 33X land callout, but this audit did not verify every individual pad coordinate/dimension against TI's land pattern dimensions.
  1. Populate terminal Pin Description and Pin Type properties from the datasheet.
  2. Clarify duplicated terminals 30-33 as package lands belonging to logical pins 1, 9, 16, and 24, or revise symbol/pin numbering if Flux supports multi-pad duplicate pin numbers.
  3. Rename ~QON to QON unless the project convention intentionally uses the tilde to indicate low-triggered behavior.
  4. Perform a deeper footprint geometry audit by extracting the KiCad footprint pad coordinates/sizes and comparing them line-by-line to the TI RQM0029A land pattern.
  5. Confirm the 3D STEP model orientation against the footprint pin-1 marker before releasing the part for production use.
Automated Review Check
Component review checks for MPN, manufacturer, datasheet, terminals, pin numbers, terminal parametrics, missing properties, and excluded terminals returned no ERROR/WARNING/UNCERTAIN/OPEN results at the time of review. This does not eliminate the metadata concerns above because the current symbol still uses unspecified pin types and lacks datasheet pin descriptions in the structured schematic output.

    Sources Reviewed

    Project Metadata Reviewed

    Key Datasheet Specs

    Datasheet Pin Table vs Current Symbol Terminals

    Footprint / Package Cross-Check

    Pin Description / Pin Type Cross-Check

    Mismatches / Risks Flagged

    Recommended Follow-Up Fixes

    Automated Review Check

Documents

    BQ25792RQMR Part Audit

Assets

BQ25792RQMR.png

BQ25792RQMR.png

BQ25792RQMRThumbnail
BQ25792RQMR

BQ25792RQMR

BQ25792RQMR Symbol.svgDefault
stp

BQ25792RQMR

BQ25792RQMR.stp3D Model
kicad_mod

BQ25792RQMR

BQ25792RQMR.kicad_modFootprint

BQ25792RQMR

BQ25792RQMR thumbnail
Charger IC Lithium Ion/Polymer 29-VQFN-HR (4x4)
The BQ25792 is a switch-mode synchronous buck-boost charger with full power-path management. It can automatically regulate power flow between the input source, system load, and battery.
It supports a wide input range and is designed for USB Type-C™ / USB Power Delivery (USB-PD) systems, enabling both charging and OTG (power output from battery) operation.
⭐ Key Features ⚡ High-performance charging Up to 5 A charge current Supports 1S to 4S battery packs High efficiency (up to ~96% under typical conditions) Programmable switching frequency: 750 kHz or 1.5 MHz 🔋 Wide input support Input voltage range: 3.6 V to 24 V Absolute max rating up to 30 V Supports USB adapters and barrel jack sources Detects USB charging standards (BC1.2, DCP, CDP, HVDCP, etc.) 🔄 Buck-boost power conversion Seamless buck, boost, and buck-boost operation Maintains stable system voltage even when battery is low or input varies 🔌 USB-PD / OTG support USB Power Delivery (PD 3.0 compatible) Supports OTG output (battery powers USB port) OTG voltage range: 2.8 V to 22 V 🧠 Intelligent power management NVDC power path management (system can run without battery) Dual-input power mux controller (select between two power sources) Battery supplement mode (prevents input overload) 📊 Monitoring & control Integrated 16-bit ADC for voltage, current, temperature monitoring Fully I²C configurable Autonomous or host-controlled operation 🛡️ Protection & safety Input and battery over-voltage/over-current protection Thermal regulation and shutdown Charging safety timer MOSFET protection (internal switching FETs included) 📦 Package 29-pin VQFN (4 mm × 4 mm) package Industrial temperature range: -40°C to 85°C
#CommonPartsLibrary #IntegratedCircuit #PowerManagement #Battery-charger

Properties

Official TI datasheet: https://www.ti.com/lit/ds/symlink/bq25792.pdf. Part: BQ25792RQMR; I2C controlled 1-4 cell 5-A buck-boost battery charger with dual-input selector and USB PD 3.0 OTG output; RQM VQFN-HR 29-pin 4 mm x 4 mm.

BQ25792RQMR

Texas Instruments

Integrated Circuits

lcsc.com/datasheet/C2862876.pdf

IC

parametric-v1

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