Part Information Review and Updates
3:28
Searching the project.
Analyzing the schematic.
Analyzing the PCB layout.
Searching for project information.
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Searching for property details.
Searching properties.
Evaluating input needs.
Searching 2 domains.
Clarifying project details.
Search complete — 74 results across 3 domains.
Considering updates and necessary actions.
Searching web for: "BQ24074RGTR Texas Instruments datasheet PDF official"
Found 1 results.
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Searching for project components.
Searching 4 domains.
Looking for "Exact manufacturer part number family coverage, package information, pin count, package drawing summary, and short functional description for BQ24074RGTR." in bq24074.pdf
Looking for "Complete pin table for the BQ24074RGTR package including pin numbers, pin names, and short functions." in bq24074.pdf
Looking for "Key electrical and functional specifications for BQ24074RGTR: input voltage range, charging current capability, battery regulation voltage, USB/current limit behavior, thermal regulation, status outputs, and operating temperature." in bq24074.pdf
Looking for "What does the datasheet say about the package type, exposed thermal pad, and package dimensions for BQ24074RGTR?" in bq24074.pdf
Searching 3 domains.
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Searching 3 domains.
Synthesizing footprint and pin details.
Search complete — 237 results across 5 domains.
Counting layout pads.
Datasheet URL=https://www.ti.com/lit/ds/symlink/bq24074.pdf
Project vs datasheet
| Field | Current project | Datasheet check | Status |
|---|---|---|---|
| MPN | BQ24074RGTR | Matches TI orderable part | OK |
| Manufacturer | Texas Instruments | Matches datasheet | OK |
| Description | Charger IC Lithium Ion 16-VQFN (3x3) | Functionally correct, but could be more specific | OK |
| Part type | Integrated Circuit | Correct, more specifically a 1-cell linear charger with power path | OK |
| Designator prefix | U | Correct for IC | OK |
| Datasheet URL | Missing before review | Official TI PDF found and added | Fixed |
| Package text | 16-VQFN (3x3) in description | Datasheet shows VQFN (RGT), 16 pins, 3.0 mm x 3.0 mm, exposed thermal pad | Mostly OK |
BQ24074RGTR summary
| Spec | Value |
|---|---|
| Function | 1-cell Li-Ion linear charger with dynamic power-path management |
| Charge current | Up to 1.5 A |
| Battery regulation voltage | 4.2 V |
| OUT regulation | 4.4 V nominal |
| Operating input range for BQ24074 | 4.35 V to 10.2 V |
| Input abs survival | Up to 26 V without damage, operation suspended |
| USB modes | 100 mA, 500 mA, or resistor-programmed input current limit |
| ILIM programmable range | Up to 1.5 A |
| Temperature | Junction operating range -40 C to 125 C |
| Thermal regulation | 125 C |
| Thermal shutdown | 155 C |
| Package | 16-pin VQFN (RGT) with exposed thermal pad |
- Datasheet package: 16 named pins + exposed thermal pad
- Current project terminals: 17
- Current footprint electrical pads visible: 17
Pin name / function review
| Datasheet pin | Project terminal | Review |
|---|---|---|
| TS | TS | OK |
| BAT | BAT_2 | Electrically plausible, but naming differs from datasheet |
| BAT | BAT_3 | Electrically plausible, but naming differs from datasheet |
| CE | ~CE | Active-low semantics shown in symbol, but name differs from datasheet |
| EN2 | EN2 | OK |
| EN1 | EN1 | OK |
| PGOOD | ~PGOOD | Active-low semantics shown, but datasheet names it PGOOD |
| VSS | VSS | Name OK |
| CHG | ~CHG | Active-low semantics shown, but datasheet names it CHG |
| OUT | OUT_10 | Electrically plausible, but naming differs from datasheet |
| OUT | OUT_11 | Electrically plausible, but naming differs from datasheet |
| ILIM | ILIM | OK |
| IN | IN | OK |
| TMR | TMR | OK |
| ITERM | ITERM | OK |
| ISET | ISET | OK |
| Exposed thermal pad | EXP | Present, good |
Flagged items
Probably acceptable
| Terminal | Current pin type | Notes |
|---|---|---|
| ~CE | Input | Correct direction |
| EN1 | Input | Correct |
| EN2 | Input | Correct |
| ILIM | Input | Correct |
| TMR | Input | Correct |
| ITERM | Input | Correct |
| ISET | Bi-Directional | Reasonable, since it programs charge current and monitors current |
| ~PGOOD | Output | Correct as status output |
| ~CHG | Output | Correct as status output |
| BAT_2 | Bi-Directional | Reasonable for battery connection/sense |
| BAT_3 | Bi-Directional | Reasonable for battery connection/sense |
| TS | Input | Correct |
Pin Description properties on the terminal components.What looks correct
| Item | Review |
|---|---|
| Package family | Asset name QFN50P300X300X100-17N.kicad_mod is consistent with 0.50 mm pitch, 3.0 mm x 3.0 mm, 1.0 mm height, 17 electrical pads |
| Electrical pad count | Layout shows 17 named electrical pads, matching 16 leads + exposed pad |
| Exposed pad presence | EXP exists, consistent with datasheet thermal pad requirement |
| Thermal-pad requirement | Datasheet says exposed pad is internally connected to VSS and must be tied to the same potential as VSS |
- The layout metadata also shows 5 additional mount-pad entries numbered
18to22. These do not appear to correspond to datasheet electrical pins. - They may be footprint-internal mechanical/helper objects rather than real package pins, but based on the available layout data I can only flag them for review.
Recommended corrections
| Priority | Issue |
|---|---|
| High | Change VSS pin type from Power In to Ground |
| High | Change EXP pin type from Power In to Ground |
| Medium | Change IN from Input to Power In |
| Medium | Change OUT_10 and OUT_11 from Output to Power Out |
| Medium | Add Pin Description properties to all terminals |
| Low | Normalize symbol labels if you want exact datasheet naming, for example ~CE, ~PGOOD, ~CHG, BAT_2, BAT_3, OUT_10, OUT_11 |
Set Datasheet URL to "https://www.ti.com/lit/ds/sym..."
0:01
Set Datasheet URL to "https://www.ti.com/lit/ds/symlink/bq24074.pdf"
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