MAX6394US310D3+ Analog Devices Integrated Circuit (Other) In Stock
The MAX6394US310D3+ is a single-channel voltage supervisor and microprocessor reset IC from Analog Devices (Maxim), featuring an adjustable threshold and four selectable reset timeout periods of 0.7 ms, 14 ms, 105 ms, and 826 ms in a tiny 4-pin SOT-23 package. It monitors supply rails and asserts a reset signal to prevent MCU or logic misstarts during power-up and brownout conditions.
- Manufacturer
- Analog Devices
- Package
- Other
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- MAX6394US310D3+ 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
Key Features
- Four factory-selectable reset timeout periods: 0.7 ms, 14 ms, 105 ms, and 826 ms for flexible hold-off timing
- Adjustable voltage threshold allowing precise brownout detection on 1.8 V, 2.5 V, 3.3 V, or 5 V rails
- Single-channel voltage supervisor in a 4-pin SOT-23 package minimizing PCB area to under 5 mm²
- Active-low reset output directly compatible with MCU reset inputs without external logic
- JESD-609 e3 Pb-free rating meeting RoHS requirements for global distribution
- YTEOL of 10 years ensuring long-term supply continuity for industrial and appliance designs
Applications
The MAX6394US310D3+ is deployed in microcontroller-based industrial controllers, smart meters, and medical monitoring devices where reliable power-on reset and brownout detection prevent firmware corruption or undefined MCU behavior during supply transients. It also suits consumer appliances and IoT gateway modules that require a compact, pin-count-minimal supervisor to hold a processor in reset until the supply voltage stabilizes above the programmed threshold.
Specifications
| Manufacturer Package Code | 4-SOT_23-N/A |
| Date Of Intro | 2008-02-12 |
| YTEOL | 10 |
| Adjustable Threshold | YES |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | R-PDSO-G4 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Current-Max (Isup) | 20mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1V |
| Supply Voltage-Nom (Vsup) | 3.6V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +3.102V |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
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 | Japan, Mainland China, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand, USA |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What reset timeout periods are available for the MAX6394US310D3+, and how does the choice affect system startup behavior?
The MAX6394US310D3+ offers four timeout options: 0.7 ms, 14 ms, 105 ms, and 826 ms. The '310D3' suffix selects a specific timeout from this set. A longer timeout, such as 826 ms, keeps the MCU in reset until slow-starting power supplies and capacitors fully charge, preventing firmware misstarts; a shorter period like 0.7 ms minimizes boot delay in time-critical applications.
What supply voltage threshold does the MAX6394US310D3+ monitor, and how is it adjusted?
The device features an adjustable threshold, allowing the designer to set the brownout detection voltage to match the MCU's minimum operating voltage, typically between 1.5 V and 5 V. A resistor divider network on the threshold input pin scales the monitored rail to the internal reference, giving better than 1% accuracy on the trip point for reliable brownout detection.
How small is the MAX6394US310D3+ footprint, and is it suitable for extremely space-constrained PCB designs?
The MAX6394US310D3+ uses a 4-pin SOT-23 package, one of the smallest standard plastic surface-mount outlines available, with a body of approximately 2.9 mm × 1.6 mm. Four pins is the minimum needed for supply, ground, threshold input, and reset output, making this part ideal for densely packed IoT modules, wearables, or any design where preserving every square millimeter of board space matters.
Is the MAX6394US310D3+ suitable for long-lifecycle industrial designs, and what is its production status?
With a YTEOL of 10 years and an introduction date of 2008, the MAX6394US310D3+ is a well-established, actively produced device. Industrial and appliance programs committing to 7- to 10-year production runs can source it with confidence, and its long history in production also means distributor safety stock is typically available to absorb short-term demand spikes.
Related Guides
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
ADAQ7768-1 Design Guide for Precision Vibration and Dynamic Signal Measurement
Design ADAQ7768-1 precision data acquisition channels for vibration and dynamic sensing with the right bandwidth, reference, clock, and layout choices.
Jun 30, 2026
AD5204BRZ10 Design Guide for SPI-Controlled Gain and Offset Calibration
Design AD5204BRZ10 digital potentiometer calibration loops with bounded trim span, safe wiper current, clean SPI routing, and reliable startup codes.
Jun 30, 2026
Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
More from Analog Devices
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”