Part Review and Datasheet Update
Populate all Pin Type and Pin Description fields from the TPS274160B datasheet.
Thought for 5 sec
I’ll update each terminal’s Pin Type and Pin Description from the TPS274160B datasheet, then re-read the schematic to verify the fields are populated.
Worked for 42 sec
The first pass populated all fields; I’m normalizing the few Pin Type values to Flux’s standard options before verification.
Worked for 48 sec
Populated and verified Pin Type and Pin Description for all 29 terminals from the TPS274160B datasheet.
Open items:
- Used Flux-standard Pin Type values where needed:
Open Collectorfor the open-drain FAULT pin,Power Infor VS pins,Groundfor GND pins, andPassivefor EP.
Suggested next steps:
- Run a final part/library review check.
- Verify footprint pad geometry against TI RLH0028A land pattern dimensions.
- Publish or update the part once metadata cleanup is complete.
Review footprint and publish
Verify footprint geometry
Run final review
Publish cleaned part
Fix remaining metadata
Refine this doc
Ask about this doc
TPS274160BRLHR Part Review
Sources
- Current Flux part project:
adrian95/tps274160brlhr - Existing Datasheet URL property:
https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/e578c183eb0a1f19f8ee840eb1c43cfad72415f40301d4e4a8aaae1fea52b94a.pdf - Official TI datasheet confirmed:
https://www.ti.com/lit/ds/symlink/tps274160.pdf - TI product page confirms TPS274160BRLHR active and links to datasheet.
Current Part Metadata
- Project / part name: TPS274160BRLHR
- Manufacturer part number: TPS274160BRLHR
- Manufacturer: Texas Instruments
- Description: TPS274160x 40 V 160 mΩ Quad Channel Industrial Smart High Side Switch
- Published part UID: e5de7fa5-434f-4338-bd8d-90b4e34a48f7
- Designator prefix: IC
- Current Part Type property: Electromechanical Components
- Schematic terminal count: 29 terminals
- PCB layout nodes: 29 pads plus footprint containers/shapes
- Datasheet URL property: set, but points to an uploaded PDF rather than TI’s official canonical URL.
Datasheet Key Specs
- Device: TPS274160x quad-channel smart high-side switch; TPS274160B variant provides analog current sense and global FAULT output.
- Package/orderable: TPS274160BRLHR, WQFN (RLH), 28 pins plus exposed thermal pad, 4 mm × 5 mm body, 0.8 mm max height.
- Operating supply: 5 V to 36 V continuous; 50 V absolute maximum.
- Nominal DC load current: 0 A to 1.35 A per channel with all channels on.
- On resistance: 160 mΩ typical at TJ = 25°C; 260 mΩ typical at TJ = 125°C.
- Current limiting: adjustable 250 mA to 4 A; internal current limit 8 A min to 14 A max when CL is tied to GND.
- Diagnostics: DIAG_EN enables diagnostics; SEL/SEH select one of four channels for TPS274160B current-sense output on CS; FAULT is open-drain/global fault report.
- Current-sense ratio: KCS ≈ 300 for version B.
- Logic input thresholds: VIH min 2 V, VIL max 0.8 V; logic/control pins are 0 V to 5 V rated in recommended operation.
- Ambient operating temperature: –40°C to 125°C.
- Protections: short-circuit protection, inductive load flyback clamp, UVLO, loss-of-GND protection, open-load / short-to-supply detection, thermal shutdown.
- Thermal: RθJA 31.7°C/W for RLH WQFN-28 per datasheet thermal table.
Pin Cross-Check — TPS274160B RLH Package
Table
| Pin | Datasheet name | Symbol terminal found | Datasheet role | Match |
|---|---|---|---|---|
| 1 | EN3 | EN3 | Input control for channel 3, internal pulldown | Yes |
| 2 | EN4 | EN4 | Input control for channel 4, internal pulldown | Yes |
| 3 | SEH | SEH | CS channel-selection high bit, internal pulldown | Yes |
| 4 | SEL | SEL | CS channel-selection low bit, internal pulldown | Yes |
| 5 | FAULT | ~FAULT | Global open-drain fault output | Functionally yes; active-low notation is acceptable |
| 6 | CS | CS | Current-sense output | Yes |
| 7 | CL | CL | Adjustable current-limit pin | Yes |
| 8 | NC | NC_1 | No internal connection | Yes |
| 9 | GND | GND_1 | Ground | Yes |
| 10 | THER | THER | Thermal shutdown behavior control | Yes |
| 11 | DIAG_EN | DIAG_EN | Diagnostic enable input | Yes |
| 12 | OUT4 | OUT4_1 | Channel 4 output | Yes |
| 13 | OUT4 | OUT4_2 | Channel 4 output | Yes |
| 14 | OUT3 | OUT3_1 | Channel 3 output | Yes |
| 15 | OUT3 | OUT3_2 | Channel 3 output | Yes |
| 16 | NC | NC_2 | No internal connection | Yes |
| 17 | VS | VS_1 | Power supply | Yes |
| 18 | VS | VS_2 | Power supply | Yes |
| 19 | VS | VS_3 | Power supply | Yes |
| 20 | VS | VS_4 | Power supply | Yes |
| 21 | NC | NC_3 | No internal connection | Yes |
| 22 | OUT2 | OUT2_1 | Channel 2 output | Yes |
| 23 | OUT2 | OUT2_2 | Channel 2 output | Yes |
| 24 | OUT1 | OUT1_1 | Channel 1 output | Yes |
| 25 | OUT1 | OUT1_2 | Channel 1 output | Yes |
| 26 | GND | GND_2 | Ground | Yes |
| 27 | EN1 | EN1 | Input control for channel 1, internal pulldown | Yes |
| 28 | EN2 | EN2 | Input control for channel 2, internal pulldown | Yes |
| 29 / EP | Thermal pad | EP | Connect to device GND or leave floating; solder to PCB for optimal thermal/mechanical performance | Yes |
Footprint Cross-Check
- The part project has 29 PCB pads, matching the datasheet’s 28 WQFN pins plus exposed thermal pad.
- Footprint top-view outline visually matches a 4 mm × 5 mm WQFN body orientation with a pin-1 marker.
- Datasheet land pattern calls for 28 × 0.6 mm × 0.24 mm perimeter pads on 0.5 mm pitch, exposed pad about 2.55 mm × 3.55 mm, and 4.8 mm × 3.8 mm solder-mask/land-pattern envelope.
- The available layout inspection did not expose pad geometry dimensions, so exact pad size/pitch/EP dimensions could not be numerically verified from the tool output. Pad count and naming are consistent.
Mismatches / Issues Flagged
- Part Type property appears wrong: Current value is
Electromechanical Components; this device is an integrated circuit / power switch, not electromechanical. - Pin Type properties are all
Unspecified: Datasheet defines inputs, outputs, power, ground, NC, and thermal pad behavior. These should be populated for better ERC/library quality. - Pin Description properties are missing: Symbol terminal names and numbers are correct, but the descriptive pin-function text from Table 6-1 is not stored on the terminals.
- Datasheet URL is set but non-canonical: The existing URL points to an uploaded PDF. The official TI canonical URL is
https://www.ti.com/lit/ds/symlink/tps274160.pdf. The user request only required updating when no datasheet URL was set, so I did not overwrite it. - Package metadata property is not visible in project metadata: Datasheet package should be WQFN (RLH), 28 pins plus exposed thermal pad, 4 mm × 5 mm. The footprint appears to implement this, but a Package/Case property was not listed in the project metadata output.
Verdict
The schematic symbol pin names and pin numbers match the TPS274160B RLH WQFN-28 datasheet, including the exposed thermal pad as pad 29/EP. The footprint pad count also matches 28 pins plus EP. Main cleanup items are metadata quality: update Part Type, add/normalize package metadata, and populate terminal Pin Type / Pin Description fields from the datasheet.
Sources
Current Part Metadata
Datasheet Key Specs
Pin Cross-Check — TPS274160B RLH Package
Footprint Cross-Check
Mismatches / Issues Flagged
Verdict
