MIC803-41D4VM3TR Microchip Integrated Circuit (Other) In Stock
MIC803-41D4VM3TR is a 3-pin microprocessor supervisor and voltage reset IC from Microchip with a fixed threshold at 4.10 V. It monitors supply rails and asserts a reset signal to keep embedded systems stable during power-up and brownout events. Compact SOT-23 packaging supports space-constrained designs.
- Manufacturer
- Microchip
- Package
- Other
- Pin Count
- 3
- Lifecycle
- TRANSFERRED
- Datasheet
- MIC803-41D4VM3TR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MIC803-41D4VM3TR?
- Fixed 4.10 V reset threshold for precise supply monitoring without external resistors
- Single-channel voltage supervisor in ultra-compact 3-pin SOT-23 package occupying less than 4 mm² board area
- Active-low RESET output with 140 ms minimum assertion delay to ensure complete microcontroller initialization
What is MIC803-41D4VM3TR used for?
MIC803-41D4VM3TR is designed for microprocessor and microcontroller reset supervision in portable consumer electronics, industrial control modules, and automotive accessory boards. It monitors a single 4.10 V power rail and holds the reset line low for at least 140 ms after the supply stabilizes, preventing code execution from partially powered logic. The SOT-23 form factor makes it especially useful in battery-powered IoT nodes and wearables where PCB space is at a premium.
What are the specifications of MIC803-41D4VM3TR?
| Reach Compliance Code | Compliant |
| Adjustable Threshold | NO |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | R-PDSO-G3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TO-236 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1.2V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +4.1V |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the MIC803-41D4VM3TR datasheet?
MIC803-41D4VM3TR Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MIC803-41D4VM3TR?
Compatible alternatives and drop-in replacements for MIC803-41D4VM3TR:
Voltage Supervisor/Reset IC, Fixed, 1 Channel, +4.1V, PDSO3
3-Pin Microprocessor Supervisor Circuit w/ Open-Drain Reset Output
Voltage Supervisor/Reset IC, Fixed, 1 Channel, +2.93V, PDSO3
Frequently Asked Questions
At what supply voltage does MIC803-41D4VM3TR assert its RESET output and for how long does it hold the signal?
MIC803-41D4VM3TR asserts its active-low RESET output when VCC falls below 4.10 V. It holds the reset pulse for a minimum of 140 ms after VCC rises back above the threshold, ensuring the microcontroller completes its full boot sequence before releasing reset and beginning program execution.
Which embedded systems benefit most from using MIC803-41D4VM3TR instead of a discrete RC reset circuit?
Systems powered from 4.10 V to 5 V rails—such as 8-bit PIC and AVR microcontroller boards—benefit from MIC803-41D4VM3TR because it provides a precise 4.10 V threshold and a guaranteed 140 ms reset delay that a simple RC circuit cannot reliably deliver across -40°C to +125°C temperature swings.
How does the 3-pin SOT-23 package of MIC803-41D4VM3TR simplify PCB integration compared to 8-pin supervisor ICs?
The 3-pin SOT-23 package needs only 3 connections—VCC, GND, and RESET—and occupies roughly 3.5 mm² footprint, versus 8-pin SOIC packages requiring 6 additional passive components and 30 mm² or more. This reduces BOM count by at least 4 parts and simplifies layout in space-constrained designs under 1 cm² total supervisor area.
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