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Analog Devices Inc./Maxim Integrated MAX6384XS31D5+T
- Part No.:
- MAX6384XS31D5+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6384XS31D5+T.pdf
- Description:
- IC MPU/RESET CIRC 3.08V SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:1,979
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Product details
Overview
MAX6384XS31D5+T from Maxim Integrated is a low-power microprocessor supervisory circuit with active-low push-pull reset output, factory-set 3.08V reset threshold (±2.5% over −40°C to +125°C), 280ms minimum VCC reset timeout, and debounced manual reset input (MR). It monitors single supply voltage in battery-powered embedded systems where reliable power-on reset and brownout protection are critical.
For engineers reviewing the MAX6384XS31D5+T datasheet, MAX6384XS31D5+T pinout, MAX6384XS31D5+T application, or MAX6384XS31D5+T equivalent, key selection factors include its 4-pin SC70 package, guaranteed reset validity down to VCC = 1V, ±2.5% threshold accuracy across automotive temperature range, and MR input with internal 63kΩ pullup resistor.
Technical Context
The MAX6384XS31D5+T implements a precision bandgap-based reset comparator with 60ppm/°C tempco and negative-going VCC transient immunity up to 35µs at 100mV overdrive. Its internal timer ensures deterministic 280ms reset assertion after VCC recovery, independent of supply ramp rate.
It features a dedicated MR input with 1µs minimum pulse width support, 100ns glitch rejection, and 200ns MR-to-reset delay-enabling robust external reset initiation without external debounce circuitry. The push-pull active-low RESET output drives directly into µP reset inputs without external pullup.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.08V nominal, ±2.5% over −40°C to +125°C - ensures accurate brownout detection across automotive temperature range |
| VCC Reset Timeout | 280ms minimum - guarantees sufficient reset hold time for slow-ramping µP clock domains |
| Supply Current | 3µA at +1.8V - enables multi-year operation in coin-cell–powered IoT sensors |
| Operating Voltage Range | +1.0V to +5.5V - supports valid reset assertion even during deep brownout conditions |
| MR Input Pullup | 63kΩ internal resistor - eliminates need for external pullup and simplifies PCB layout |
| Reset Output Type | Active-low push-pull - provides rail-to-rail logic levels without external components |
| Transient Immunity | 35µs max duration at 100mV overdrive - suppresses false resets from short supply glitches |
Pinout & Package
MAX6384XS31D5+T is housed in a RoHS-compliant 4-pin SC70 package (outline 21-0098, land pattern 90-0187), measuring 2.0mm × 2.1mm × 0.95mm, optimized for space-constrained portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Primary supply input and monitored voltage source - powers internal circuitry and feeds reset comparator |
| 2 | RESET | Active-low push-pull reset output - asserts low during fault and holds for full 280ms timeout |
| 3 | MR | Active-low manual reset input - forces reset when pulled low; internal 63kΩ pullup to VCC |
| 4 | GND | Analog and digital ground reference - must be connected to system ground plane for stable threshold operation |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 3.08V with ±2.5% tolerance over full temperature range - eliminates need for external calibration |
| Deterministic reset timeout | 280ms minimum - ensures µP core and peripherals fully initialize before release |
| MR input with integrated pullup | 63kΩ internal resistor - reduces BOM count and board area vs. discrete pullup solution |
| Low-voltage operation guarantee | Valid reset output down to VCC = 1.0V - maintains system reliability during deep undervoltage events |
| Negative transient immunity | Rejects VCC glitches ≤35µs at 100mV overdrive - prevents spurious resets in noisy power environments |
Applications
| Portable Medical Sensors | Battery-Powered Telematics |
|---|---|
Use Scenario: Wearable ECG monitor powered by CR2032 coin cell with intermittent BLE transmission. IC Role / Device Role / Timing Role: Supervises VCC rail and asserts reset if battery drops below 3.08V, holding reset for 280ms to ensure clean µP boot after wake-up. Use Value: Prevents corrupted sensor data capture during low-battery brownout, extending usable battery life by avoiding premature shutdown. | Use Scenario: Automotive OBD-II tracker using Li-ion battery and GPS module with cold-start requirements. IC Role / Device Role / Timing Role: Monitors main 3.3V supply and provides manual reset via ignition signal; guarantees reset deassertion only after 280ms stable supply. Use Value: Eliminates GPS cold-start failures caused by marginal power-up sequencing in vehicle battery transients. |
| Industrial Edge Controllers | Smart Home Hubs |
Use Scenario: DIN-rail mounted PLC controller with dual 24V/5V rails and firmware update capability. IC Role / Device Role / Timing Role: Provides primary reset supervision on 5V logic rail; MR input tied to firmware update trigger for controlled safe reboot. Use Value: Ensures deterministic state recovery after OTA updates, preventing partial flash corruption during power interruption. | Use Scenario: Voice-controlled home hub with always-on microphone and Wi-Fi SoC requiring low-quiescent reset. IC Role / Device Role / Timing Role: Supervises 3.3V SoC supply with 3µA quiescent current; MR input driven by button press for user-initiated factory reset. Use Value: Enables sub-10µA system standby current while retaining reliable hardware reset functionality. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326XR31D5+T | Same 3.08V threshold and 280ms timeout, but no MR input - push-pull active-low only | Lacks manual reset capability; requires external reset generator for user-triggered reboots | Select when MR functionality is unnecessary and lowest possible BOM cost is prioritized |
| TPS3808G33DBVR | 3.3V threshold (not 3.08V), 200ms timeout, 1.5µA ICC at 1.8V - different timing and accuracy spec | Higher threshold may cause earlier reset assertion in 3.0V systems; tighter 0.5% initial accuracy but wider tempco | Select when 3.3V rail supervision is required and higher accuracy at room temperature outweighs automotive tempco needs |
Compared with MAX6326XR31D5+T, MAX6384XS31D5+T adds MR functionality without increasing quiescent current or footprint; versus TPS3808G33DBVR, it offers tighter thermal stability (±2.5% vs. ±3.0% over −40°C to +125°C) and exact 3.08V threshold alignment for legacy 3.0V system compatibility.
Availability
MAX6384XS31D5+T is available at Aetrix Electronics and suitable for portable medical sensors, battery-powered telematics, industrial edge controllers, and smart home hubs requiring stable component supply across automotive temperature ranges and long product lifecycles.
Supply support for MAX6384XS31D5+T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated, now part of Analog Devices, designs precision analog and mixed-signal ICs for demanding industrial, automotive, and computing applications.
The MAX6381–MAX6390 family delivers ultra-low-power, high-accuracy reset supervision for microprocessor-based systems operating under wide voltage and temperature extremes.
FAQ
What is the exact reset threshold voltage of MAX6384XS31D5+T and how stable is it over temperature?
The MAX6384XS31D5+T has a factory-set nominal reset threshold of 3.08V, with guaranteed tolerance of ±2.5% over the full −40°C to +125°C operating range. Its temperature coefficient is 60ppm/°C, ensuring minimal drift across automotive and industrial environments. This specification is confirmed in the Electrical Characteristics table of the official MAX6381–MAX6390 datasheet Rev 7.
Does MAX6384XS31D5+T require an external pullup resistor on the MR pin?
No, MAX6384XS31D5+T includes an internal 63kΩ pullup resistor on the MR pin, eliminating the need for an external component. The MR input is active-low and can be driven directly by a switch to GND or by TTL/CMOS logic. Leaving MR unconnected defaults it to high via the internal pullup, disabling manual reset function.
What is the minimum VCC voltage at which MAX6384XS31D5+T guarantees correct RESET output logic state?
MAX6384XS31D5+T guarantees valid reset output logic state down to VCC = 1.0V. Below this voltage, the internal circuitry cannot maintain defined output behavior. This is explicitly stated in the Absolute Maximum Ratings and Electrical Characteristics sections of the MAX6381–MAX6390 datasheet, enabling reliable operation during deep brownout conditions.
Can MAX6384XS31D5+T be used in automotive applications?
Yes, MAX6384XS31D5+T is rated for −40°C to +125°C operation and is AEC-Q100 qualified (as noted in the Features section). While the base part number does not carry the "/V" suffix indicating automotive-grade screening, its temperature rating and qualification meet standard automotive ambient requirements for under-hood and cabin modules.
What package type and dimensions does MAX6384XS31D5+T use?
MAX6384XS31D5+T uses a 4-pin SC70 package (outline number 21-0098, land pattern 90-0187), measuring 2.0mm × 2.1mm × 0.95mm. This RoHS-compliant, lead-free package is optimized for high-density portable designs and supports reflow soldering at +260°C peak temperature.
MAX6384XS31D5+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-82A, SOT-343
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 3.08V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 280ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-4
MAX6384XS31D5+T FAQ
1.How can I place an order for MAX6384XS31D5+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6384XS31D5+T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX6384XS31D5+T reliable?
The price and inventory of MAX6384XS31D5+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6384XS31D5+T is usually 5 days.
3.What payment methods are accepted for MAX6384XS31D5+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6384XS31D5+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6384XS31D5+T?
MAX6384XS31D5+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6384XS31D5+T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX6384XS31D5+T?
For technical support, including MAX6384XS31D5+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6384XS31D5+T requirements.
6.How does Aetrix verify that MAX6384XS31D5+T is sourced from the original manufacturer or authorized distributors?
All MAX6384XS31D5+T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX6384XS31D5+T meets industry standards.
7.What is the process for return or replacement of MAX6384XS31D5+T?
All MAX6384XS31D5+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6384XS31D5+T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX6384XS31D5+T part is unused and in its original packaging.
Return procedure for MAX6384XS31D5+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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