MCP810T-475I/TT Microchip Integrated Circuit (SOT23 (3-Pin)) In Stock
The MCP810T-475I/TT is a microprocessor supervisor IC from Microchip that monitors a 4.625 V threshold and asserts a reset signal when supply voltage drops below this level. Fixed threshold in a 3-pin SOT-23 package enables simple, low-cost system reset protection. Available from stock worldwide.
- Manufacturer
- Microchip
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP810T-475I/TT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.0633(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 4.625 V reset threshold with active-low open-drain output for 5 V system protection
- 3-pin SOT-23 package under 3 mm x 3 mm for ultra-compact supervisor implementation
- Micropower operation with no external components required beyond a decoupling capacitor
Applications
The MCP810T-475I/TT protects microcontrollers and DSPs operating from 5 V rails by asserting a clean reset signal whenever supply voltage falls below 4.625 V, preventing code execution corruption during brownouts or power sequencing glitches. It suits industrial control panels, PLC modules, and automotive ECUs where reliable 5 V rail monitoring ensures deterministic processor restart after power interruptions. The tiny SOT-23 package allows placement adjacent to the MCU's RESET pin with minimal trace length, reducing susceptibility to noise coupling on the reset line.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23-3 |
| Factory Lead Time | 19Weeks |
| 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) | 4.5V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.96mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +4.625V |
| 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 supply voltage does MCP810T-475I/TT assert its reset output signal?
MCP810T-475I/TT asserts an active-low reset when the monitored supply drops below 4.625 V, holding RESET low for a minimum of 140 ms after voltage rises above the threshold to ensure stable MCU startup. This 4.625 V fixed trip point targets 5 V systems where a 375 mV droop below nominal signals an unsafe operating condition for the processor.
Which MCU or processor families benefit from using MCP810T-475I/TT as a power-on reset supervisor?
Any 5 V microcontroller without an on-chip brownout detection circuit, such as classic PIC16 and PIC18 devices operating at 5 V, 8051-based controllers, and older CPLD designs, benefits from the MCP810T-475I/TT. The 140 ms minimum reset pulse width meets the startup time requirements of most 8-bit and 16-bit processors running at 8 MHz to 40 MHz clock frequencies.
How does MCP810T-475I/TT fit into an industrial PLC reset circuit compared to a discrete RC reset network?
A discrete RC reset network using a resistor and capacitor has threshold tolerance of ±20% due to component variation, triggering reset anywhere from 3.7 V to 5.5 V on a 5 V rail. MCP810T-475I/TT specifies the threshold at 4.625 V with ±2% accuracy, providing a precise 4.5 V to 4.7 V reset window. The 3-pin SOT-23 package also replaces 2 discrete parts, reducing BOM complexity and eliminating the capacitor's ESR sensitivity to temperature.
Can MCP810T-475I/TT be used in automotive 5 V ECU designs operating at extended temperature?
The 'I' grade MCP810T-475I/TT is rated for -40°C to 85°C operation, covering standard industrial and automotive cabin temperature ranges. For under-hood automotive applications requiring 125°C, the equivalent 'E' temperature grade variant should be specified. At -40°C, the threshold accuracy remains within ±2% of 4.625 V, ensuring reliable brownout detection across the full industrial temperature range.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.0633 | $0.06 |
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