MCP809T-460I/TT Microchip Integrated Circuit (SOT23 (3-Pin)) In Stock
The MCP809T-460I/TT is a single-channel voltage supervisor IC from Microchip with a fixed 4.60 V reset threshold and push-pull active-low output in a 3-pin SOT-23 package. It monitors system supply rails and holds the microprocessor in reset until voltage rises above the threshold. Designed for reliable power-on reset management in consumer, industrial, and embedded control applications.
- Manufacturer
- Microchip
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP809T-460I/TT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2750(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP809T-460I/TT?
- Fixed 4.60 V reset threshold eliminates external resistor dividers for simple integration
- Push-pull active-low RESET output drives microcontroller reset pins directly without pull-up resistors
- Single-channel voltage supervisor in a compact SOT-23-3 package for space-constrained PCBs
- RoHS-compliant lead-free SOT-23 package suitable for green manufacturing processes
- Low standby quiescent current for battery-assisted backup designs
What is MCP809T-460I/TT used for?
The MCP809T-460I/TT is used to supervise 5 V supply rails in microcontroller-based embedded systems, ensuring orderly power-on reset and preventing false starts during supply ramp-up. It is well suited for industrial automation controllers, consumer appliances, and point-of-sale terminals where reliable reset management is critical to system integrity. The tiny SOT-23 package allows placement directly next to the microcontroller RESET pin to minimize PCB trace inductance.
What are the specifications of MCP809T-460I/TT?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23-3 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| Additional Feature | BAT BUP SW:N;MNL RST:N;OV DET:N;PW FL IP:N;PW FL IO:N;PW FL OP:N;PRG RST DLY:N;UV DET:N;WD:N;WWD:N |
| 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) | 4.35V |
| 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 | +4.48V |
| 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 | 8542.39.00.60 |
| Country of Origin | Thailand |
Where can I find the MCP809T-460I/TT datasheet?
MCP809T-460I/TT Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP809T-460I/TT?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
At what supply voltage does MCP809T-460I/TT release the reset signal to allow a microcontroller to start executing code?
The MCP809T-460I/TT has a fixed reset threshold of 4.60 V with a built-in reset timeout delay. The device releases its active-low RESET output and allows the microcontroller to begin execution only after the monitored supply rises above 4.60 V and remains stable, preventing code execution during slow or noisy supply ramp-up sequences.
How does the push-pull output of MCP809T-460I/TT differ from an open-drain reset output in practical circuit design?
A push-pull output actively drives the RESET line both high and low, eliminating the need for an external pull-up resistor and ensuring fast signal transitions on capacitively loaded reset networks. In contrast, an open-drain device relies on an external resistor to pull the line high, adding a component and potentially slowing rise times on PCBs with high parasitic capacitance exceeding 100 pF.
When sourcing a 4.60 V threshold variant, how does MCP809T-460I/TT differ from the MCP809T-475I/TT variant in application suitability?
The MCP809T-460I/TT trips at 4.60 V while the MCP809T-475I/TT trips at 4.75 V, giving designers 150 mV of margin difference when protecting 5 V rails with tighter or looser tolerance. A 4.60 V threshold is preferred when the 5 V rail sags under heavy loads toward 4.65 V, whereas 4.75 V provides a tighter guard band for systems with well-regulated supplies and ADC references sensitive to droops below 4.75 V.
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About Microchip
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.4364 | $0.44 |
| 10+ | $0.4342 | $4.34 |
| 25+ | $0.3735 | $9.34 |
| 115+ | $0.3150 | $36.23 |
| 3000+ | $0.2800 | $840.00 |
| 9000+ | $0.2750 | $2475.00 |
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