MCP100T-450I/TT Microchip Integrated Circuit (SOT23 (3-Pin)) In Stock
Microchip MCP100T-450I/TT is a single-channel voltage supervisor IC that monitors a 4.375V threshold and asserts an active-low reset in a tiny SOT-23-3 package. It offers a fixed threshold, 1-channel reset generation, and operates across industrial temperatures for reliable system startup protection.
- Manufacturer
- Microchip
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP100T-450I/TT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1300(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 4.375V threshold with active-low reset output provides reliable undervoltage protection for 5V microcontroller systems
- Single-channel architecture in a 3-pin SOT-23-3 package minimizes BOM cost and board footprint for space-constrained designs
- Factory-trimmed threshold accuracy ensures consistent reset assertion without external resistors, reducing component count and calibration effort
Applications
The MCP100T-450I/TT is used in embedded systems and industrial controllers to guarantee correct microcontroller startup and reset when the supply voltage drops below 4.375V. It protects 5V-based MCU systems from executing code under unstable supply conditions, preventing data corruption during power-up and power-down transients. The device is also used in communication equipment and automotive telematics units where reliable reset assertion during voltage brownouts is critical.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23-3 |
| Factory Lead Time | 7Weeks |
| YTEOL | 8 |
| Adjustable Threshold | NO |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | R-PDSO-G3 |
| JESD-609 Code | e3 |
| 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 |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.06mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1V |
| Supply Voltage-Nom (Vsup) | 4.25V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +4.38V |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Package | SOT23 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
At what threshold voltage does the MCP100T-450I/TT assert its reset output?
The MCP100T-450I/TT asserts its active-low reset when the supply voltage drops below the fixed 4.375V threshold. The reset remains asserted until the supply recovers above 4.375V plus a built-in hysteresis margin, ensuring glitch-free operation in 5V microcontroller systems.
Which microcontroller architectures does the MCP100T-450I/TT protect in 5V systems?
The device is suitable for 8-bit and 16-bit MCUs operating from a 5V rail, such as PIC16 and PIC18 families, as well as AVR and 8051-core controllers, ensuring the processor stays in reset until the supply settles above 4.375V for reliable code execution from the correct reset vector.
How many external components does a MCP100T-450I/TT circuit require?
No external resistors or capacitors are required for threshold setting; the 3-pin SOT-23-3 device needs only decoupling—typically a 100nF ceramic capacitor on the VCC pin—resulting in a complete reset circuit occupying less than 5mm² of board area.
When should an engineer consider MCP100T-450I/TT instead of a programmable supervisor?
For any fixed 5V design where the reset threshold is known at 4.375V and will never change, MCP100T-450I/TT eliminates 2 external resistors and BOM variability compared to adjustable supervisors, lowering cost and reducing reset-threshold tolerance errors caused by resistor drift over -40°C to +85°C industrial temperature range.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.1300 | $0.13 |
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