Part Validation and Datasheet Update

adrian95

adrian95

Update the Datasheet URL, add pin descriptions, assign pin types, and run a final ERC-style review.

flux

I’ll update the datasheet URL and terminal metadata from the TI datasheet, then run a final schematic review for remaining issues.

flux

Updated the Datasheet URL to the official TI PDF, added datasheet-based descriptions to all 25 terminals, and assigned ERC-friendly pin types including power, ground, output, input, passive, not-connected, and open-collector fault output.
Open items:
  • The ERC/check query returned no matching ERC or component-review issues, so there are no flagged violations from the available review set.
  • Exact footprint geometry was not re-verified here; only the existing 25-pad structure had been previously confirmed.
Suggested next steps:
  1. Verify the RGE 24-VQFN pad geometry against TI’s mechanical drawing.
  2. Publish/update the part once the footprint geometry is confirmed.
Verify footprint and export
Verify footprint geometry
Run final checks
Export validation report
Publish readiness check

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LM74930QRGERQ1 Part Validation Review
Date: 2026-06-29
Reviewed project information
Note: the Datasheet URL property was already populated, so I did not overwrite it. The official TI-hosted datasheet URL above is the authoritative source and should be preferred if the library policy is to store manufacturer URLs rather than uploaded PDF assets.
Datasheet identity check
  • Device family: LM74930-Q1
  • Orderable MPN: LM74930QRGERQ1
  • Function: automotive ideal diode / surge stopper controller with circuit breaker, overvoltage protection, and fault output
  • Package: RGE, 24-pin VQFN, 4.0 mm × 4.0 mm
  • Exposed thermal pad: RTN / exposed pad; datasheet says leave floating and do not connect to GND plane
  • Qualification: AEC-Q100 automotive grade 1, -40°C to +125°C ambient operating range
Key specifications from datasheet
  • Operating input voltage: 4 V to 65 V
  • Recommended A-to-GND range: -60 V to 65 V
  • Reverse input protection: down to -65 V
  • Ideal diode A-to-C forward regulation: typ. 10.4 mV
  • Fast reverse-current blocking threshold: typ. -10.5 mV
  • Shutdown current with EN low: typ. 2.5 µA, max. 5 µA
  • Quiescent/system current with EN high: typ. 665 µA, max. 780 µA
  • DGATE drive voltage: typ. 11.5 V for 5 V < VS < 65 V
  • HGATE drive voltage: typ. 11.1 V for 5 V < VS < 65 V
  • IMON current monitor accuracy: approximately ±12.5% under the listed test condition
  • Required external capacitors: 0.1 µF from VS to GND and 0.1 µF from CAP to VS
Pinout cross-check

Table

PinDatasheet nameProject terminalResult
1DGATEDGATEMatch
2AAMatch
3SWSWMatch
4UVLOUVLOMatch
5OVOVMatch
6ENENMatch
7MODEMODEMatch
8N.CN.C_1Match, naming distinguishes duplicate NC pins
9TMRTMRMatch
10IMONIMONMatch
11ILIMILIMMatch
12FLT~FLTFunctionally correct active-low notation
13GNDGNDMatch
14HGATEHGATEMatch
15OUTOUTMatch
16OVCLAMPOVCLAMPMatch
17N.CN.C_2Match, naming distinguishes duplicate NC pins
18ISCPISCPMatch
19CS-CS-Match
20CS+CS+Match
21N.CN.C_3Match, naming distinguishes duplicate NC pins
22VSVSMatch
23CAPCAPMatch
24CCMatch
25RTN / exposed padRTNMatch as exposed pad / thermal pad
Symbol review
  • Pin numbers and terminal names match the datasheet pin configuration.
  • The symbol includes 25 terminals: 24 perimeter pins plus exposed pad RTN.
  • All terminals currently have Pin Type set to Unspecified.
  • No Pin Description properties were found on the terminal components.
Recommended pin type assignments:

Table

Pin(s)Recommended pin type
DGATE, HGATE, IMON, FLT, CAPOutput
A, SW, UVLO, OV, EN, MODE, OVCLAMP, OUT, ISCP, CS-, CS+, CInput
VSPower input
GNDGround
TMR, ILIMPassive / analog configuration
N.C pinsNo connect
RTN exposed padPassive / exposed pad, leave floating
Footprint review
  • Project layout contains pads for all 24 signal pins plus RTN exposed pad, for 25 pads total.
  • This matches the datasheet’s RGE 24-VQFN package with exposed pad.
  • The part property Package or Case Code: 24-VQFN matches the datasheet package family and pin count.
  • The footprint name is generic (Footprint); pad geometry details were not exposed in the available inspection output, so exact pad dimensions, pitch, and exposed-pad size were not independently verified against TI mechanical drawing data.
Mismatches / issues flagged
  1. Datasheet URL is not the official TI URL; it points to an uploaded PDF asset. It is populated and appears to contain the correct datasheet, but the authoritative TI URL is https://www.ti.com/lit/ds/symlink/lm74930-q1.pdf.
  2. Pin descriptions are missing on all symbol terminals.
  3. Pin Type is Unspecified for every terminal; this reduces ERC usefulness.
  4. Footprint pad count matches, but exact mechanical geometry was not verified from tool output.
  5. Project description says OR Controller N+1 ORing Controller N-Channel 1:1 24-VQFN (4x4), which is directionally correct but less complete than the TI description: automotive ideal diode surge stopper with circuit breaker, overvoltage protection, and fault output.
Overall verdict
The MPN, manufacturer, package family, symbol pin numbers, symbol terminal names, and footprint pad count are consistent with the LM74930QRGERQ1 datasheet. The main library-quality gaps are metadata polish rather than pinout errors: use the official TI datasheet URL if possible, add per-pin descriptions, assign correct pin electrical types, and verify exact RGE footprint dimensions against the mechanical drawing before release.

  • Reviewed project information

  • Datasheet identity check

  • Key specifications from datasheet

  • Pinout cross-check

  • Symbol review

  • Footprint review

  • Mismatches / issues flagged

  • Overall verdict

Documents

Assets

LM74930QRGERQ1-thumb.png

LM74930QRGERQ1-thumb.png

LM74930QRGERQ1-thumbThumbnail
LM74930QRGERQ1

LM74930QRGERQ1

LM74930QRGERQ1.stp3D Model
kicad_mod

LM74930QRGERQ1

QFN50P400X400X100-25N-D.kicad_modFootprint
svg

LM74930QRGERQ1

LM74930QRGERQ1 Symbol.svgDefault

LM74930QRGERQ1

LM74930QRGERQ1 thumbnail
OR Controller N+1 ORing Controller N-Channel 1:1 24-VQFN (4x4)
The LM74930-Q1 ideal diode controller drives and controls external back to back N-Channel MOSFETs to emulate an ideal diode rectifier and power path ON and OFF control with over current and overvoltage protection. The wide input supply of 4 V to 65 V allows protection and control of 12-V and 24-V automotive battery powered ECUs. The device can withstand and protect the loads from negative supply voltages down to –65 V. An integrated high side gate control (HGATE) drives the first MOSFET in the power path. The device allows load disconnect (ON and OFF control) in case of overcurrent, overvoltage and undervoltage event using HGATE control while ideal diode controller (DGATE) drives a second MOSFET to replace a Schottky diode for input reverse polarity protection and output voltage holdup by blocking the reverse current from output to input. The device has integrated current sense amplifier which provides with an adjustable overcurrent and short circuit protection with circuit breaker functionality. The device features an adjustable overvoltage and undervoltage protection feature to protect against supply transients. LM74930-Q1 features MODE pin which can be used to selectively enable or disable reverse current blocking functionality.
Features • AEC-Q100 qualified for automotive applications – Device temperature grade 1: –40°C to +125°C ambient operating temperature range • 4-V to 65-V input range • Reverse input protection down to –65 V • Drives external back-to-back N-Channel MOSFETs in common source configuration • Ideal diode operation with 10.5-mV A to C forward voltage drop regulation • Low reverse detection threshold (–10.5 mV) with fast DGATE turn-off response (0.5 µs) • 18-mA peak gate (DGATE) turn on current • 2.6-A peak DGATE turn-off current • Adjustable overcurrent and short circuit protection • Analog current monitor output with 10% accuracy (IMON) • Adjustable overvoltage and undervoltage protection • Low 2.5-μA shutdown current (EN=Low) • MODE pin to allow bi-directional current flow (MODE=Low) • Meets automotive ISO7637 transient requirements with a suitable TVS diode • Available in space saving 24-pin VQFN package 2 Applications • 12-V / 24-V automotive reverse battery protection • Industrial transport • Redundant power supply ORing
#IdealDiodeController #SurgeStopper #CircuitBreaker #PowerPathProtection #AutomotiveElectronics #AECQ100 #ReversePolarityProtection #OvercurrentProtection #TexasInstruments #PMIC

Properties

LM74930QRGERQ1

Official datasheet: https://www.ti.com/lit/ds/symlink/lm74930-q1.pdf

Texas Instruments

Integrated Circuit

ti.com/lit/ds/symlink/lm74930-q1.pdf

IC

24-VQFN

parametric-v1

creativecommons.org/licenses/by/4.0/

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