TC4431COA (SOIC-8) — Schematic Symbol, IPC-7351B Footprint & 3D STEP Model

Q: What is the Pinout and operating voltage specification of TC4431COA (SOIC-8)?

Manufactured by MICROCHIP, the TC4431COA is housed in a SOIC-8 package with 8 pins and a 1.27 mm lead pitch, supporting a VCC supply range of 4.5V to 30V. Key pins include: 1 (VDD: Power Supply Input (VDD — 4.5V to 30V)), 2 (IN: Multiplexed I/O & Peripheral Pin IN (General)), 3 (LOCKDIS: Multiplexed I/O & Peripheral Pin LOCKDIS (General)), 4 (GND: Ground Reference Pin (GND)), 5 (GND: Ground Reference Pin (GND)), 6 (OUT: Multiplexed I/O & Peripheral Pin OUT (General)).

Q: What are the IPC-7351B PCB Footprint dimensions for TC4431COA?

Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), TC4431COA (SOIC-8) has a nominal body envelope of 3.90 × 4.90 mm, pitch e = 1.27 mm, and 8 copper pads.

Q: Where can I download KiCad (.kicad_mod, .kicad_sym), Fusion 360 (.lbr), and 3D STEP models for TC4431COA?

You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for TC4431COA (MICROCHIP, SOIC-8) directly on this page, including KiCad 8 Footprints (.kicad_mod), Schematic Symbols (.kicad_sym), Autodesk Fusion 360 / Eagle (.lbr), and 3D STEP AP214 / WebGL GLB models.

1. SYMBOL

2. 2D FOOTPRINT

3. 3D CAD MODEL

Package Body: 3.90mm × 4.90mm · Pitch: 1.27mm · Ruler Step: 1.00mmSynced <100ms

Synchronized Pinout (Symbol / 2D / 3D) (8/8)

Touch or hover any pin to highlight concurrently across Symbol, Footprint and 3D

Pin	Symbol	Type	Function (EN)
1	VDD	Power	Power Supply Input (VDD — 4.5V to 30V)
2	IN	I/O	Multiplexed I/O & Peripheral Pin IN (General)
3	LOCKDIS	I/O	Multiplexed I/O & Peripheral Pin LOCKDIS (General)
4	GND	GND	Ground Reference Pin (GND)
5	GND	GND	Ground Reference Pin (GND)
6	OUT	I/O	Multiplexed I/O & Peripheral Pin OUT (General)
7	OUT	I/O	Multiplexed I/O & Peripheral Pin OUT (General)
8	VDD	Power	Power Supply Input (VDD — 4.5V to 30V)

PIN 1 VDD

Power

Power Supply Input (VDD — 4.5V to 30V)

Design note: SupplyInput 45Vto30V , .

IPC-7351B Solder Density & Span C/G/Z Tuner

Extracted Drawings Gallery (6 Standard Drawings + 8 Extracted Figures)

Read the original datasheet PDF directly or click any drawing to view fullscreen

1. Realistic 3D PackageREPRESENTATIVE

TC4431COA (SOIC-8) - 1. Realistic 3D Package

Detailed solid 3D bodyExpand ›

2. Standard Pinout (Top View)CLEANROOM PINOUT

TC4431COA (SOIC-8) - 2. Standard Pinout (Top View)

True package pinout (8 pins)Expand ›

3. Original Datasheet PinoutPDF PINOUT

TC4431COA (SOIC-8) - 3. Original Datasheet Pinout

Uncropped datasheet pin diagramExpand ›

4. Package Dimensions (D×E×A)PACKAGE DIMENSIONS

TC4431COA (SOIC-8) - 4. Package Dimensions (D×E×A)

SOIC-8 · 3.90×4.90mm · Pitch 1.27mmExpand ›

5. Recommended Land PatternLAND PATTERN

TC4431COA (SOIC-8) - 5. Recommended Land Pattern

IPC-7351B Footprint (8 Pads)Expand ›

6. Application SchematicSCHEMATIC

TC4431COA (SOIC-8) - 6. Application Schematic

Typical Application SchematicExpand ›

Original Datasheet Pinouts & Technical Drawings (8 figures · Page 1/1)

Showing 1–8 of 8 uncropped original figures for TC4431

P8 · p08_fig01EXACT PACKAGE

TC4431/TC4432

P1 · p01_fig01867×1056px

TC4431COA (SOIC-8) — Package Type | OUT TC4431 | 1 | 2 | 3 | 4 | VDD | 5 | 6 | 7 | 8 | OUT | GND | VDD | IN | LOCK DIS | GND | TC4432 | 1 | 2 | 3 | 4 | VDD | 5 | 6 | 7 | 8 | OUT | GND | VDD | IN | GND | 2 7 | Inverting | Non Inverting | OUT | 6 | LOCK DIS | 2 7

Package Type | OUT TC4431 | 1 | 2 | 3 | 4 | VDD | 5 | 6 | 7 | 8 | OUT | GND | VDD | IN | LOCK DIS | GND | TC4432 | 1 | 2 | 3 | 4 | VDD | 5 | 6 | 7 | 8 | OUT | GND | VDD | IN | GND | 2 7 | Inverting | Non Inverting | OUT | 6 | LOCK DIS | 2 7

P1 · p01_fig01P1

Datasheet Page 1 (p01_fig01)

P2 · p02_fig011623×829px

Functional Block Diagram

P8 · p08_fig021777×750px

TC4431COA (SOIC-8) — DS21424D-page 8 © 2007 Microchip Technology Inc. | Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-speci

DS21424D-page 8 © 2007 Microchip Technology Inc. | Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-speci

P8 · p08_fig01P8

Datasheet Page 8 (p08_fig01)

P11 · p11_fig011777×2734px

TC4431COA (SOIC-8) — 8-Lead Plastic Small Outline (SN) - Narrow, 3.90 mm Body [SOIC] - Note: For the most current package drawings, please see the Microchip Packaging Specification located at - http:/www.microchip.com/packaging | © 2007 Microchip Technology Inc

8-Lead Plastic Small Outline (SN) - Narrow, 3.90 mm Body [SOIC] - Note: For the most current package drawings, please see the Microchip Packaging Specification located at - http:/www.microchip.com/packaging | © 2007 Microchip Technology Inc

P12 · p12_fig011777×2734px

8-Lead Plastic Small Outline (SN) - Narrow, 3.90 mm Body [SOIC] - Note: For the most current package drawings, please see the Microchip Packaging Specification located at - http://www. microchip.com/packaging | TC4431/TC4432 | DS21424D-page

Technical Specifications & Part Details (TC4431COA)

Summary of electrical parameters, mechanical dimensions, voltage range and peripheral interfaces from Datasheet (EN)

Standard Electronic & Interconnect Component

Detailed Overview:TC4431COA (SOIC-8) is a 8-pin standard electronic & interconnect component featuring a 4.90 × 3.90 × 1.75 mm mechanical envelope (lead pitch e = 1.27 mm). Rated for 4.5V to 30V supply operation across -65°C to +150°C with integrated Standard I/O / Passive interfaces.

Operating Supply VoltageV_CC / V_DD

4.5V to 30V

Place 100nF + 10µF X7R decoupling capacitors < 2mm from supply pins

Ambient Operating TemperatureT_A

-65°C to +150°C

Industrial temperature grade; T_J(max) = +125°C

Clock / RF Operating Frequencyf_CLK / f_RF

DC / Broadband Passive

Extracted from authoritative PDF specification tables

Current & Power RatingI_OUT / I_CC

1.5 A

Observe per-pin absolute maximum current limits

Package Envelope (D × E × A)D × E × A

4.90 × 3.90 × 1.75 mm (A1=0.15 mm)

Package family: SOIC (SOIC-8)

Pin Count & Lead PitchN / e

8 Pins | Pitch e = 1.27 mm (50.0 mil)

Normalized to Center-to-Center Span C per IPC-7351B

Integrated Peripheral InterfacesBuses

Standard I/O / Passive

Cross-linked with 4D Pinout & Schematic Symbol

Reflow & Moisture SensitivityIPC / MSL

IPC-7351B Level B | J-STD-020 (Peak 260°C) | MSL-3

60% windowed solder paste stencil on thermal EPAD

Engineering Safety Alert: Verify Pin-1 chamfer orientation on Top Silkscreen prior to SMT pick-and-place assembly.

Engineering Safety Alert: Connect exposed thermal pad (if present) to internal ground plane via 0.3mm stitched thermal vias.

5-Point Standards Verification

Automated compliance checks prior to export

5/5 PASS

IEEE-315 Symbol8 auto-grouped pins

IPC-7351B Land Pattern8 pads · Pitch 1.27mm

IPC-7525 60% Solder PasteReflow 1:1 Standard

DFM Rules JLCPCB / PCBWayMin pad clearance: 0.25mm

3D STEP AP214 & GLBAligned coordinate origin (0,0,0)

Hardware Verification & Community Engineering Reviews

Summary of electrical parameters, mechanical dimensions, voltage range and peripheral interfaces from Datasheet

5.00 PCB Verified

Mechanical Dimensions & Land Pattern (SOIC-8)

Extracted from Datasheet & IPC-7351B Normalized

Package Body (D × E)Nominal

4.90 × 3.90 mm

Height (A) & Pitch (e)IPC-7351B

A=1.75mm · e=1.27mm

Pad Size (W × L)Level B

0.60 × 1.55 mm

Pins / Total PadsTopology

8P / 8Pad (DUAL_ROW)

Recommended Companion BOM & Drop-In Equivalents

Passive external components per reference schematic and 1:1 pin-compatible alternatives

DFM READY

Designator / Replacement MPN	Value / Package	Function & PCB Layout Rule
N/A BOM	Per application circuit SOIC-8	Size power & signal trace widths for rated load current following IPC-2221 clearance rules.

Technical Frequently Asked Questions (FAQ) — TC4431COA (SOIC-8)

Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formats

IPC-7351B / IEEE-315

What is the Pinout and operating voltage specification of TC4431COA (SOIC-8)?

Manufactured by MICROCHIP, the TC4431COA is housed in a SOIC-8 package with 8 pins and a 1.27 mm lead pitch, supporting a VCC supply range of 4.5V to 30V. Key pins include: 1 (VDD: Power Supply Input (VDD — 4.5V to 30V)), 2 (IN: Multiplexed I/O & Peripheral Pin IN (General)), 3 (LOCKDIS: Multiplexed I/O & Peripheral Pin LOCKDIS (General)), 4 (GND: Ground Reference Pin (GND)), 5 (GND: Ground Reference Pin (GND)), 6 (OUT: Multiplexed I/O & Peripheral Pin OUT (General)).

What are the IPC-7351B PCB Footprint dimensions for TC4431COA?

Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), TC4431COA (SOIC-8) has a nominal body envelope of 3.90 × 4.90 mm, pitch e = 1.27 mm, and 8 copper pads.

Where can I download KiCad (.kicad_mod, .kicad_sym), Fusion 360 (.lbr), and 3D STEP models for TC4431COA?

You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for TC4431COA (MICROCHIP, SOIC-8) directly on this page, including KiCad 8 Footprints (.kicad_mod), Schematic Symbols (.kicad_sym), Autodesk Fusion 360 / Eagle (.lbr), and 3D STEP AP214 / WebGL GLB models.

Static Reference Appendix: Pinout Table (8 pins) & TC4431 Family VariantsExpand static table

Pin #	Signal Name	Electrical Type	Functional Description & Design Notes
1	VDD	Power_In	Primary positive power supply input (VDD) operating in the 4.5V to 30V domain (Max rating: 30.0V).
2	IN	Digital_IO	Signal terminal IN (I/O, 4.5V to 30V domain). Multiplexed alternate functions: IN. Supported peripheral buses: General.
3	LOCKDIS	Digital_IO	Signal terminal LOCKDIS (I/O, 4.5V to 30V domain). Multiplexed alternate functions: LOCKDIS. Supported peripheral buses: General.
4	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
5	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
6	OUT	Digital_IO	Signal terminal OUT (I/O, 4.5V to 30V domain). Multiplexed alternate functions: OUT. Supported peripheral buses: General.
7	OUT	Digital_IO	Signal terminal OUT (I/O, 4.5V to 30V domain). Multiplexed alternate functions: OUT. Supported peripheral buses: General.
8	VDD	Power_In	Primary positive power supply input (VDD) operating in the 4.5V to 30V domain (Max rating: 30.0V).

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