Part Audit Review
Worked for 3 mins 26 sec
Created a project doc
Part Audit
Part Audit
Result
The stored official datasheet URL is already populated, so no Datasheet property update was required. The MPN and 8-pin TSOT-23 package identity match the Analog Devices ordering information.
Current part information Key specificationsVerification note: the datasheet extraction returned official Analog Devices OCR evidence but did not expose resolvable inline citation IDs in this session. Values below were cross-checked against the attached official datasheet; inline provenance markers are therefore unavailable.
- Function: micropower pushbutton on/off controller with microprocessor interrupt.
- Variant: LTC2954-2, with a low-true, open-drain enable output.
- Supply operating range: 2.7 V to 26.4 V.
- VIN absolute maximum: −0.3 V to 33 V.
Audit complete. The official Analog Devices datasheet was already correctly attached; MPN, 8-pin mapping, TSOT-23 package family, body outline, and 0.65 mm pitch match.
Flagged issues include missing Part Type/pin descriptions, unspecified pin electrical types, ambiguous pin-6
EN/~EN naming, and footprint pads that differ from the recommended land pattern. Full details: Part Audit.
Set Part Type, add pin descriptions and electrical types, and rename pin 6 to ~EN.
Thought for 7 sec
I’ll update the part classification and all terminal metadata, rename pin 6 to
~EN, then verify the symbol definitions.Worked for 59 sec
Updated and verified:
- Part Type: Power Management
- Added descriptions and valid electrical types to all eight pins
- Renamed pin 6 from
EN/~ENto~EN - Set
~INTand~ENas Open Collector - Component review checks are clear
Correct footprint geometry
Complete part metadata
Review pad manufacturability
Add usage guidance
Part Audit
Result
The stored official datasheet URL is already populated, so no Datasheet property update was required. The MPN and 8-pin TSOT-23 package identity match the Analog Devices ordering information.
Verification note: the datasheet extraction returned official Analog Devices OCR evidence but did not expose resolvable inline citation IDs in this session. Values below were cross-checked against the attached official datasheet; inline provenance markers are therefore unavailable.
Current part information
Table
| Field | Current value | Review |
|---|---|---|
| MPN | LTC2954ITS8-2#PBF | Matches ordering table |
| Manufacturer | Analog Devices | Correct; legacy branding may appear as Linear Technology |
| Description | Pushbutton controller, 2.7 V–26.4 V, TSOT-23-8 | Function and range are correct, but Description is not stored as a project property |
| Package property | TSOT | Correct family, but less specific than TSOT-23-8 / TS8 |
| Pin count | 8 | Correct |
| Designator prefix | IC | Acceptable |
| Part Type | Empty | Mismatch: required metadata is missing |
| Datasheet URL | Official Analog Devices 2954fb.pdf | Correct and already populated |
| Mount | Not stored | Missing metadata; device is SMD |
Key specifications
- Function: micropower pushbutton on/off controller with microprocessor interrupt.
- Variant: LTC2954-2, with a low-true, open-drain enable output.
- Supply operating range: 2.7 V to 26.4 V.
- VIN absolute maximum: −0.3 V to 33 V.
- Supply current: 6 µA typical, 12 µA maximum in the stated power-on test condition.
- Temperature grade: −40 °C to +85 °C.
- Package: 8-lead plastic TSOT-23, TS8, JEDEC MO-193.
- Default timing: 32 ms typical turn-on debounce, 32 ms typical turn-off interrupt debounce, and 64 ms typical forced power-down delay.
- ONT and PDT timing scale: approximately 6.4 s/µF additional delay.
- PB includes an internal 100 kΩ pull-up to an internal 1.9 V bias.
- INT is active-low open drain. The LTC2954-2 enable output is active-low open drain.
- KILL falling threshold: 0.6 V typical.
Pin cross-check
Table
| Pin | Current symbol name | Datasheet function | Result |
|---|---|---|---|
| 1 | VIN | Supply input | Correct |
| 2 | ~PB | Active-low pushbutton input | Correct |
| 3 | ONT | Turn-on timing capacitor input | Correct |
| 4 | GND | Ground | Correct |
| 5 | ~INT | Active-low open-drain interrupt output | Correct |
| 6 | EN/~EN | LTC2954-2 active-low open-drain enable output | Functionally recognizable, but ambiguous; this exact variant should be labeled ~EN rather than the combined family label |
| 7 | PDT | Power-down timing capacitor input | Correct |
| 8 | ~KILL | Active-low kill/handshake input | Correct |
Symbol metadata issues
- All eight terminals have
Pin Type = Unspecified; electrical types should be assigned for ERC. - Pin descriptions are absent. Recommended descriptions are:
- VIN — Power Supply Input, 2.7 V to 26.4 V
- PB — Active-Low Pushbutton Input; internal pull-up
- ONT — Turn-On Timing Capacitor Input
- GND — Device Ground
- INT — Active-Low Open-Drain Interrupt Output
- EN — Active-Low Open-Drain Enable Output (LTC2954-2)
- PDT — Power-Down Timing Capacitor Input
- KILL — Active-Low Kill / Voltage Monitor Input
- The rendered symbol is electrically ordered correctly, but the generic
EN/~ENlabel does not clearly identify the selected -2 polarity.
Footprint cross-check
Current footprint:
SOT65P280X100-8N.kicad_mod.Table
| Feature | Current footprint | Datasheet land/package data | Result |
|---|---|---|---|
| Pad count | 8 | 8 | Correct |
| Pin numbering | 1–4 left, 5–8 right with correct top-view sequence | Same | Correct |
| Lead pitch | 0.65 mm | 0.65 mm | Correct |
| Row center spacing | 2.60 mm | 2.62 mm reference | Very close; 0.02 mm difference |
| Pad width | 0.45 mm | 0.40 mm maximum recommended | Mismatch: footprint is 0.05 mm wider |
| Pad length | 1.05 mm | 1.22 mm reference recommended | Mismatch: footprint is 0.17 mm shorter |
| Fabrication body | 1.624 mm × 2.90 mm | 1.50–1.75 mm × 2.90 mm | Correct |
| Courtyard | 4.15 mm × 3.40 mm | Not directly specified as courtyard | Plausible |
| Pin-1 marker | Present | Required for orientation | Correct |
The pad geometry differs from the datasheet’s recommended solder-pad layout. It may still solder successfully, but it is not an exact match and should be reviewed before production, especially for paste yield and toe/side fillet margin.
3D model
A STEP model is assigned at unit scale with a 90° X rotation. No explicit package bounding box was available from the layout data, so dimensional and seating alignment of the 3D model could not be conclusively verified. The footprint remains the manufacturing source of truth.
Flagged mismatches
- Part Type is empty — confirmed by the component review warning.
- Description and Mount are not stored as properties.
- All terminal Pin Types are Unspecified.
- All terminal Pin Descriptions are missing.
- Pin 6 name is ambiguous for the -2 variant;
~ENis clearer and datasheet-specific. - Footprint pad width is 0.45 mm versus 0.40 mm maximum recommended.
- Footprint pad length is 1.05 mm versus 1.22 mm reference recommended.
- 3D seating/dimensional fit is not conclusively verified.
Overall assessment
The MPN, manufacturer, datasheet, pin count, pin numbering, functional pin mapping, package family, body outline, and lead pitch are correct. The main corrective work is metadata completion, terminal typing/descriptions, variant-specific EN naming, and review or replacement of the non-matching pad dimensions before production use.
Result
Current part information
Key specifications
Pin cross-check
Symbol metadata issues
Footprint cross-check
3D model
Flagged mismatches
Overall assessment