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MIC38HC43YM-TR (SOIC-8) — Symbol, Footprint IPC-7351B & 3D STEP Model

MIC38HC43YM-TR

MICROCHIPID: C461587SOIC-8 · 8 Pins · Pitch 1.27mmIPC-7351B Verified5.0 (0)
SYNCHRONIZED 4D CROSS-PROBE MODETouch or hover any pin to highlight concurrently across Symbol, Footprint and 3D
1. SYMBOL
U1 · MIC38HC43YM-TR (SOIC-8)1COMP2FB3ISNS4RT/CT8VREF7VDD6OUT5GNDGrid Pitch = 2.54mm (IEEE-315)-17.8-12.7-7.6-2.52.57.612.717.810.25.10-5.1-10.2mm
2. 2D FOOTPRINT
12345678E=3.90mm · Pitch e=1.27mmD=4.90mm-5-4-3-2-101234543210-1-2-3-4mm
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
PinSymbolTypeFunction (EN)
1COMPI/OMultiplexed I/O & Peripheral Pin COMP (General)
2FBI/OMultiplexed I/O & Peripheral Pin FB (General)
3ISNSI/OMultiplexed I/O & Peripheral Pin ISNS (General)
4RT/CTI/OMultiplexed I/O & Peripheral Pin RT/CT (General)
5GNDGNDGround Reference Pin (GND)
6OUTI/OMultiplexed I/O & Peripheral Pin OUT (General)
7VDDPowerPower Supply Input (VDD — 3V to 5.5V)
8VREFAnalogMultiplexed I/O & Peripheral Pin VREF (General)
PIN 1 COMP
I/O
Multiplexed I/O & Peripheral Pin COMP (General)
Design note: Compensation: Connectexternalcompensationnetworktomodifytheerror amplifieroutput .
IPC-7351B Solder Density & Span C/G/Z Tuner

Live Embedded Datasheet PDF & Technical Drawing Gallery (6 Standard Drawings + 7 Extracted Figures)

Read the original datasheet PDF directly or click any drawing to view fullscreen
Open PDF in New Window ↗Read Datasheet PDF (.pdf)
PDF VIEWEROfficial Datasheet Document: MIC38HC43YM-TR (MICROCHIP · SOIC-8)
Scroll, search text (Ctrl+F), or expand directly inside the embedded PDF reader below
1. Realistic 3D PackageREPRESENTATIVE
MIC38HC43YM-TR (SOIC-8) - 1. Realistic 3D Package
Detailed solid 3D bodyExpand ›
2. Standard Pinout (Top View)CLEANROOM PINOUT
MIC38HC43YM-TR (SOIC-8) - 2. Standard Pinout (Top View)
True package pinout (8 pins)Expand ›
3. Original Datasheet PinoutPDF PINOUT
MIC38HC43YM-TR (SOIC-8) - 3. Original Datasheet Pinout
Uncropped datasheet pin diagramExpand ›
4. Package Dimensions (D×E×A)PACKAGE DIMENSIONS
MIC38HC43YM-TR (SOIC-8) - 4. Package Dimensions (D×E×A)
SOIC-8 · 3.90×4.90mm · Pitch 1.27mmExpand ›
5. Recommended Land PatternLAND PATTERN
MIC38HC43YM-TR (SOIC-8) - 5. Recommended Land Pattern
IPC-7351B Footprint (8 Pads)Expand ›
6. Application SchematicSCHEMATIC
MIC38HC43YM-TR (SOIC-8) - 6. Application Schematic
Typical Application SchematicExpand ›
Original Datasheet Pinouts & Technical Drawings (7 figures · Page 1/1)
Showing 1–7 of 7 uncropped original figures for MIC38HC43YM
P1 · p01_fig012040×2736px
MIC38HC43YM-TR (SOIC-8) — MIC38HC42/3/4/5 Micrel, Inc. | April 2005 1 M9999-042205 | MIC38HC42/3/4/5 | BiCMOS 1A Current-Mode PWM Controllers | General Description | Functional Diagram | Features | Applications | T Q | S R Q R | 2R | Oscillator | UVLO 5V Reference |
MIC38HC42/3/4/5 Micrel, Inc. | April 2005 1 M9999-042205 | MIC38HC42/3/4/5 | BiCMOS 1A Current-Mode PWM Controllers | General Description | Functional Diagram | Features | Applications | T Q | S R Q R | 2R | Oscillator | UVLO 5V Reference |
P1 · p01_fig01P1
MIC38HC43YM-TR (SOIC-8) — Datasheet Page 1 (p01_fig01)
Datasheet Page 1 (p01_fig01)
P3 · p03_fig012040×2736px
MIC38HC43YM-TR (SOIC-8) — MIC38HC42/3/4/5 Micrel, Inc. | April 2005 3 M9999-042205 | Pin Description | Pin Number Pin Number Pin Name Pin Function N, M, MM -1BN, -1BM | 1 1 COMP Compensation: Connect external compensation network to modify the error amplifier output
MIC38HC42/3/4/5 Micrel, Inc. | April 2005 3 M9999-042205 | Pin Description | Pin Number Pin Number Pin Name Pin Function N, M, MM -1BN, -1BM | 1 1 COMP Compensation: Connect external compensation network to modify the error amplifier output
P3 · p03_fig01P3
MIC38HC43YM-TR (SOIC-8) — Datasheet Page 3 (p03_fig01)
Datasheet Page 3 (p03_fig01)
P6 · p06_fig012040×2737px
MIC38HC43YM-TR (SOIC-8) — MIC38HC42/3/4/5 Micrel, Inc. | M9999-042205 6 April 2005 | Typical Characteristics | 1 | 10 | 100 | 1x104 1x105 1x106 | RT RESISTANCE (kΩ) | OSCILLATOR FREQUENCY (Hz) | Oscillator Frequency | Configuration | 10nF 4.7nF | 1nF | 470pF 200pF |
MIC38HC42/3/4/5 Micrel, Inc. | M9999-042205 6 April 2005 | Typical Characteristics | 1 | 10 | 100 | 1x104 1x105 1x106 | RT RESISTANCE (kΩ) | OSCILLATOR FREQUENCY (Hz) | Oscillator Frequency | Configuration | 10nF 4.7nF | 1nF | 470pF 200pF |
P7 · p07_fig012040×2736px
MIC38HC43YM-TR (SOIC-8) — MIC38HC42/3/4/5 Micrel, Inc. | April 2005 7 M9999-042205 | Package Information | 0.380 (9.65)� 0.370 (9.40) 0.135 (3.43)� 0.125 (3.18) | PIN 1 | DIMENSIONS:� | INCH (MM) | 0.018 (0.57) | 0.100 (2.54) | 0.013 (0.330)� 0.010 (0.254) | 0.300 (
MIC38HC42/3/4/5 Micrel, Inc. | April 2005 7 M9999-042205 | Package Information | 0.380 (9.65) 0.370 (9.40) 0.135 (3.43) 0.125 (3.18) | PIN 1 | DIMENSIONS: | INCH (MM) | 0.018 (0.57) | 0.100 (2.54) | 0.013 (0.330) 0.010 (0.254) | 0.300 (
P8 · p08_fig012040×2737px
MIC38HC43YM-TR (SOIC-8) — MIC38HC42/3/4/5 Micrel, Inc. | M9999-042205 8 April 2005 | 45° | 0°-8° | 0.244 (6.20)� 0.228 (5.79) | 0.197 (5.0)� 0.189 (4.8) SEATING� | PLANE | 0.026 (0.65)� MAX) | 0.010 (0.25)� 0.007 (0.18) | 0.064 (1.63)� 0.045 (1.14) | 0.0098 (0.249)�
MIC38HC42/3/4/5 Micrel, Inc. | M9999-042205 8 April 2005 | 45° | 0°-8° | 0.244 (6.20) 0.228 (5.79) | 0.197 (5.0) 0.189 (4.8) SEATING | PLANE | 0.026 (0.65) MAX) | 0.010 (0.25) 0.007 (0.18) | 0.064 (1.63) 0.045 (1.14) | 0.0098 (0.249)

Technical Specifications & Part Details (MIC38HC43YM-TR)

Summary of electrical parameters, mechanical dimensions, voltage range and peripheral interfaces from Datasheet (EN)
Standard Electronic & Interconnect Component
Detailed Overview:MIC38HC43YM-TR (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 3V to 5.5V supply operation across 40°C to +85°C with integrated PWM interfaces.
Operating Supply VoltageV_CC / V_DD
3V to 5.5V
Place 100nF + 10µF X7R decoupling capacitors < 2mm from supply pins
Ambient Operating TemperatureT_A
40°C to +85°C
Industrial temperature grade; T_J(max) = +125°C
Clock / RF Operating Frequencyf_CLK / f_RF
500kHz
Extracted from authoritative PDF specification tables
Current & Power RatingI_OUT / I_CC
I_GPIO(max) = ±20 mA / pin | I_VDD(total) ≤ 150 mA
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
PWM
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
OK
IPC-7351B Land Pattern8 pads · Pitch 1.27mm
OK
IPC-7525 60% Solder PasteReflow 1:1 Standard
OK
DFM Rules JLCPCB / PCBWayMin pad clearance: 0.25mm
OK
3D STEP AP214 & GLBAligned coordinate origin (0,0,0)
OK

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
mm
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 MPNValue / PackageFunction & 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) — MIC38HC43YM-TR (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 MIC38HC43YM-TR (SOIC-8)?

Manufactured by MICROCHIP, the MIC38HC43YM-TR is housed in a SOIC-8 package with 8 pins and a 1.27 mm lead pitch, supporting a VCC supply range of 3V to 5.5V. Key pins include: 1 (COMP: Multiplexed I/O & Peripheral Pin COMP (General)), 2 (FB: Multiplexed I/O & Peripheral Pin FB (General)), 3 (ISNS: Multiplexed I/O & Peripheral Pin ISNS (General)), 4 (RT/CT: Multiplexed I/O & Peripheral Pin RT/CT (General)), 5 (GND: Ground Reference Pin (GND)), 6 (OUT: Multiplexed I/O & Peripheral Pin OUT (General)).

What are the IPC-7351B PCB Footprint dimensions for MIC38HC43YM-TR?

Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), MIC38HC43YM-TR (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 MIC38HC43YM-TR?

You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for MIC38HC43YM-TR (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) & MIC38HC43YM Family VariantsExpand static table
Pin #Signal NameElectrical TypeFunctional Description & Design Notes
1COMPDigital_IOSignal terminal COMP (I/O, 3V to 5.5V domain). Multiplexed alternate functions: COMP. Supported peripheral buses: General.
2FBDigital_IOSignal terminal FB (I/O, 3V to 5.5V domain). Multiplexed alternate functions: FB. Supported peripheral buses: General.
3ISNSDigital_IOSignal terminal ISNS (I/O, 3V to 5.5V domain). Multiplexed alternate functions: ISNS. Supported peripheral buses: General.
4RT/CTDigital_IOSignal terminal RT/CT (I/O, 3V to 5.5V domain). Multiplexed alternate functions: RT/CT. Supported peripheral buses: General.
5GNDGND0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
6OUTDigital_IOSignal terminal OUT (I/O, 3V to 5.5V domain). Multiplexed alternate functions: OUT. Supported peripheral buses: General.
7VDDPower_InPrimary positive power supply input (VDD) operating in the 3V to 5.5V domain (Max rating: 5.5V).
8VREFAnalogSignal terminal VREF (Analog, 3V to 5.5V domain). Multiplexed alternate functions: VREF. Supported peripheral buses: General.
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