Part Datasheet Review
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I’ll inspect the part metadata, find and set the official datasheet URL if missing, then compare the symbol/footprint/pins against the datasheet and report any mismatches.
Worked for 4 mins 4 sec
The official TI datasheet is already present, so I’m not changing the Datasheet property. I’ve finished the datasheet comparison and am saving the detailed review as a project file.
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Created a project doc
TPS3436CCCBGDDFRQ1 Part Review
Date: 2026-07-21 Reviewed available part information for the Flux part project TPS3436CCCBGDDFRQ1, checked the datasheet URL status, and com...
Reviewed the part against the official TI datasheet and saved the detailed report here: TPS3436CCCBGDDFRQ1 Part Review.
The datasheet URL was already present, so I did not change it. Core symbol pinout and footprint match the TPS3436CCCBGDDFRQ1 DDF/SOT-23-THIN pinout option C; flagged issues are metadata-only: empty Part Type, unspecified pin types, missing pin descriptions, and package metadata not exposed as a formal property.
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TPS3436CCCBGDDFRQ1 Part Review
Date: 2026-07-21
Scope
Reviewed available part information for the Flux part project
TPS3436CCCBGDDFRQ1, checked the datasheet URL status, and compared the schematic terminals, footprint, and pin metadata against the official Texas Instruments datasheet.Sources
- Current Flux part project:
silicon-yard/tps3436cccbgddfrq1 - Flux library entry UID:
0951ec6c-99bd-4ea4-8845-4655d4294818 - Official TI product page:
https://www.ti.com/product/TPS3436-Q1/part-details/TPS3436CCCBGDDFRQ1 - Official TI datasheet:
https://www.ti.com/lit/gpn/TPS3436-Q1 - Existing Datasheet URL property found in the Flux library entry:
https://www.ti.com/lit/ds/symlink/tps3436-q1.pdf?ts=1696836591003&ref_url=https%253A%252F%252Fwww.ti.com%252Fpower-management%252Fsupervisor-reset-ic%252Fproducts.html
Current Part Information Found
Table
| Field | Current / observed value | Datasheet / TI value | Status |
|---|---|---|---|
| MPN | TPS3436CCCBGDDFRQ1 | TPS3436CCCBGDDFRQ1 | Match |
| Manufacturer | Texas Instruments | Texas Instruments | Match |
| Description | Automotive nano-quiescent-current precision window-watchdog timer | Automotive nano-IQ precision window watchdog timer | Match |
| Pin count | 8 | 8 | Match |
| Package | Footprint asset SOP65P280X110-8N; footprint description DDF0008A-9 | SOT-23-THIN / DDF, 8 pins; nominal body 2.90 mm × 1.60 mm | Match |
| Lifecycle | Active in Flux library | Active / production on TI page | Match |
| Datasheet URL | Present | Official TI datasheet available | Present; no update required |
| Part Type property | Empty string in Flux library entry | Supervisory / watchdog timer IC | Metadata incomplete |
| Package property | Not seen as a component/project property, but footprint asset is DDF/SOT-23-8 | DDF / SOT-23-THIN | Metadata incomplete, footprint itself matches |
Key Datasheet Specs
Table
| Spec | Value |
|---|---|
| Function | Automotive precision window watchdog timer |
| Qualification | AEC-Q100, Grade 1 |
| Operating ambient temperature | -40 °C to +125 °C for this orderable part |
| Supply voltage | 1.04 V to 6.0 V operating input supply; recommended operating table also lists active-low output operation down to 0.9 V |
| Supply current | 250 nA typical; up to 0.8 µA from -40 °C to 85 °C and up to 3 µA over wider conditions per datasheet table |
| Output type for this MPN | Push-pull active-low output (G option = PL, no startup delay) |
| Watchdog close time for this MPN | C option = 5 ms nominal |
| Watchdog open-time ratio option | C option = 8, 16, or 64 selectable by SET pins |
| WDO assert time for this MPN | B option = 2 ms nominal |
| Package | DDF, 8-pin SOT-23-THIN / SOT23-8 |
| MSL / reflow | Level-1-260C-UNLIM per TI orderable table |
| Carrier | 3000 piece large tape and reel |
| Part marking | NLHOF |
Pinout Cross-Check
This exact MPN decodes to TPS3436-Q1 pinout option C. Datasheet pinout option C is:
Table
| Pin | Datasheet name | Datasheet I/O | Datasheet description | Current symbol / terminal | Status |
|---|---|---|---|---|---|
| 1 | SET0 | Input | Logic input; with SET1 and WD-EN selects watchdog window ratios / enable-disable behavior | SET0, Pin Number 1 | Match |
| 2 | MR | Input | Manual reset; logic low asserts WDO | ~MR, Pin Number 2 | Match; tilde denotes active-low behavior |
| 3 | WDI | Input | Watchdog input; falling transition required during open window | WDI, Pin Number 3 | Match |
| 4 | GND | Ground | Ground pin | GND, Pin Number 4 | Match |
| 5 | SET1 | Input | Logic input; with SET0 and WD-EN selects watchdog window ratios / enable-disable behavior | SET1, Pin Number 5 | Match |
| 6 | WD-EN | Input | Logic high enables watchdog monitoring | WD-EN, Pin Number 6 | Match |
| 7 | WDO | Output | Watchdog output; asserted on watchdog error or MR low | ~WDO, Pin Number 7 | Match; tilde denotes active-low output |
| 8 | VDD | Input / supply | Supply pin; 0.1 µF bypass capacitor recommended for noisy systems | VDD, Pin Number 8 | Match |
Symbol Review
The schematic uses eight Terminal elements with correct designators and pin numbers for pinout option C:
SET0= pin 1~MR= pin 2WDI= pin 3GND= pin 4SET1= pin 5WD-EN= pin 6~WDO= pin 7VDD= pin 8
The symbol pin naming and numbering match the datasheet. The active-low notation on
~MR and ~WDO is acceptable because the datasheet describes MR as low-asserting and WDO as an active-low output.Footprint Review
Observed footprint asset:
- Footprint name:
SOP65P280X110-8N - Footprint description:
DDF0008A-9 - Package style: SMD, 8 pins
- Pad pitch: 0.65 mm
- Pad size: 0.45 mm × 1.05 mm
- Pad rows: centers at approximately ±1.325 mm from package center
- Fab outline: approximately 1.60 mm × 2.90 mm
- Courtyard: approximately 4.20 mm × 3.45 mm
- 3D model:
TPS3436CCCBGDDFRQ1.stp
Datasheet / TI package data:
- Package drawing: DDF0008A
- Package type: SOT-23-THIN, 8 pins
- Nominal body size: 2.90 mm × 1.60 mm
- Maximum package height: 1.1 mm
- Lead pitch: 0.65 mm
- Example land pattern includes 8 pads sized 1.05 mm × 0.45 mm
Footprint result: pad pitch, pad count, pad size, and package outline are consistent with the TI DDF0008A SOT-23-THIN package. Pin-to-pad mapping is also consistent with option C after accounting for Flux/KiCad coordinate-axis convention.
Mismatches / Issues Flagged
- Part Type property is empty. The Flux library entry shows
Part Typeas an empty string. It should ideally identify this as a supervisory / watchdog timer IC. - Pin Type properties are all
Unspecified. Datasheet pin types are known: SET0, MR, WDI, SET1, WD-EN, and VDD are inputs/supply pins; WDO is output; GND is ground. - Pin Description properties are not populated. The terminal names are correct, but the richer datasheet pin descriptions are not stored on the pins/properties.
- Package metadata property was not visible as a formal part property. The footprint itself correctly represents DDF / SOT-23-THIN, but adding a
Package or Case Codeproperty such asSOT-23-THIN (DDF)would improve metadata completeness. - Datasheet URL is present but uses a parameterized TI symlink URL. This is functional and official. The cleaner canonical TI URL is
https://www.ti.com/lit/gpn/TPS3436-Q1; no change was made because the request only asked to update the datasheet if no URL was already set.
Overall Verdict
The core electrical/mechanical representation is correct: MPN, manufacturer, description, pin count, symbol pin names/numbers, footprint pad count, pad pitch, pad sizes, package outline, and pin-to-pad mapping align with the official TI datasheet for TPS3436CCCBGDDFRQ1 / pinout option C.
The only issues found are metadata completeness issues: empty Part Type, unspecified pin types, missing pin descriptions, and no visible package-case property despite the correct footprint.
Scope
Sources
Current Part Information Found
Key Datasheet Specs
Pinout Cross-Check
Symbol Review
Footprint Review
Mismatches / Issues Flagged
Overall Verdict
