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Analog Devices Inc./Maxim Integrated MAX6386XS22D3
- Part No.:
- MAX6386XS22D3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6386XS22D3.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:400
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Product details
Overview
MAX6386XS22D3 from Maxim Integrated is a low-power, open-drain active-low microprocessor supervisory circuit with factory-set 2.19V reset threshold (±2.5% over -40°C to +125°C), 140ms minimum reset timeout, and debounced manual reset input (MR) featuring internal 63kΩ pullup. It monitors VCC in systems requiring reliable power-on reset for embedded controllers and battery-powered instrumentation.
For engineers reviewing the MAX6386XS22D3 datasheet, MAX6386XS22D3 pinout, MAX6386XS22D3 application, or MAX6386XS22D3 equivalent, key selection factors include its 3µA supply current at 1.8V, guaranteed valid reset output down to VCC = 1V, immunity to negative-going VCC transients, and compatibility with SC70-4 packaging for space-constrained designs.
Technical Context
The MAX6386XS22D3 implements a precision voltage comparator with ±2.5% threshold accuracy across temperature, paired with a monostable timer that enforces a fixed 140ms minimum reset assertion period after VCC recovery. Its open-drain RESET output requires an external pullup and remains functional down to VCC = 1V, ensuring deterministic behavior during brownout conditions.
It integrates a debounced manual reset input (MR) with internal 63kΩ pullup to VCC, supporting TTL/CMOS logic drive and eliminating need for external debounce circuitry. MR asserts reset when pulled low and sustains it for the full 140ms timeout after release, enabling robust operator-initiated system resets.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.19V nominal (SUFFIX 22), ±2.5% over -40°C to +125°C - ensures accurate brownout detection across industrial temperature range |
| Reset Timeout | 140ms minimum (SUFFIX D3) - guarantees sufficient processor initialization time before release |
| Supply Current | 3µA at VCC = 1.8V - enables multi-year operation in coin-cell–powered IoT sensors |
| Output Type | Open-drain active-low RESET - allows wired-OR configuration and level translation with external pullup |
| Manual Reset | MR input with 63kΩ internal pullup - simplifies PCB layout by eliminating external resistor for default-high reset control |
| Operating Voltage | 1.0V to 5.5V - supports reset assertion validity even during deep brownout down to 1V VCC |
| Temp Range | -40°C to +125°C - qualified for automotive under-hood and industrial control environments |
Pinout & Package
MAX6386XS22D3 is housed in a lead-free 4-pin SC70 package (X4-1), measuring 1.5mm × 1.0mm × 0.8mm, optimized for high-density portable applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Primary supply input and monitored voltage rail; powers internal circuitry and sets fixed reset threshold |
| 2 | RESET | Open-drain active-low reset output; sinks current when asserted; requires external pullup for logic-high state |
| 3 | MR | Active-low manual reset input; internally pulled up to VCC via 63kΩ resistor; initiates reset on logic-low transition |
| 4 | GND | Analog and digital ground reference; must be connected to system ground plane for stable comparator operation |
Key Features
| Feature | Design Value |
|---|---|
| Factory-set reset threshold | 2.19V with ±2.5% tolerance over full temperature range - eliminates calibration overhead in production |
| Low quiescent current | 3µA at 1.8V - extends battery life in always-on monitoring nodes without sacrificing supervision reliability |
| Guaranteed reset validity | Operates correctly down to VCC = 1V - prevents spurious releases during slow power ramp-down |
| Debounced MR input | No external RC network required - reduces BOM count and layout area while rejecting switch bounce |
| Negative transient immunity | Rejects sub-100ns VCC glitches below threshold - avoids false resets in electrically noisy environments |
Applications
| Industrial PLC I/O Module | Battery-Powered Data Logger |
|---|---|
Use Scenario: Monitors 3.3V logic supply in DIN-rail mounted programmable logic controller I/O expansion modules exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Supervises VCC and provides clean, glitch-immune reset pulse to ARM Cortex-M4 microcontroller during cold start and brownout events. Use Value: Ensures deterministic firmware boot sequence despite 125°C junction temperatures and 100mV VCC ripple, preventing corrupted register states. |
Use Scenario: Embedded in environmental sensor node powered by CR2032 coin cell, logging temperature/humidity every 5 minutes. IC Role / Device Role / Timing Role: Generates 140ms reset pulse on power-up and manual button press, synchronizing MCU wake-up with ADC initialization. Use Value: 3µA quiescent current extends battery life beyond 3 years; open-drain output interfaces cleanly with 1.8V MCU I/O without level shifter. |
| Medical Wearable Sensor Hub | Automotive Body Control Module |
Use Scenario: Powers heart rate and SpO₂ sensor fusion engine in FDA-cleared wearable patch operating at 1.8V core voltage. IC Role / Device Role / Timing Role: Provides fail-safe reset during battery voltage sag caused by RF transmission bursts or cold ambient exposure. Use Value: ±2.5% threshold accuracy ensures consistent reset point across -20°C to +50°C wearable operating range, avoiding missed detections. |
Use Scenario: Supervises 5V supply rail in door module controlling window lift, mirror fold, and interior lighting functions. IC Role / Device Role / Timing Role: Asserts reset during ignition cycling and load-dump transients, holding MCU in reset until stable 5V is confirmed. Use Value: Immunity to negative VCC transients up to 100ns duration prevents false resets during alternator switching noise, improving system robustness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326XR22D3 | Same 2.19V threshold and 140ms timeout, but push-pull active-low output and no MR input | Lacks manual reset capability; requires external pullup not needed for open-drain topology | Select when board-level reset control is software-only and space permits larger SC70-3 footprint |
| TPS3123E12DBVR | 2.15V threshold (±0.5%), 200ms timeout, 1.8V–5.5V operation, no MR input, SOT-23-3 package | Higher threshold accuracy but no manual reset; smaller 3-pin footprint vs. 4-pin SC70 of MAX6386XS22D3 | Choose for cost-sensitive, space-constrained designs where MR is unnecessary and tighter threshold tolerance is critical |
Compared with MAX6386XS22D3, MAX6326XR22D3 removes manual reset functionality but simplifies output interface, while TPS3123E12DBVR trades MR support and package size for superior threshold accuracy-making MAX6386XS22D3 optimal when field-serviceable reset and compact 4-pin SC70 layout are design priorities.
Availability
MAX6386XS22D3 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, battery-powered data loggers, medical wearable sensor hubs, and automotive body control modules requiring stable component supply and long-term lifecycle assurance.
Supply support for MAX6386XS22D3 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 medical applications, emphasizing low power, high reliability, and small form factor.
The MAX6381–MAX6390 family delivers ultra-low-power µP supervisory circuits targeting space- and energy-constrained embedded systems where deterministic reset behavior under brownout and transient conditions is non-negotiable.
FAQ
What is the exact reset threshold voltage of MAX6386XS22D3?
The MAX6386XS22D3 has a factory-set nominal reset threshold of 2.19V, with guaranteed tolerance of ±2.5% over the full operating temperature range (-40°C to +125°C). This value is defined by the "22" suffix in the part number and is confirmed in the Reset Thresholds table of the official datasheet.
Does MAX6386XS22D3 support manual reset functionality?
Yes, MAX6386XS22D3 includes a debounced manual reset input (MR) with an internal 63kΩ pullup resistor to VCC. Driving MR low forces an immediate reset assertion, which remains active for the full 140ms timeout period after MR is released - no external components are required for basic operation.
What package type and dimensions does MAX6386XS22D3 use?
MAX6386XS22D3 is packaged in a lead-free 4-pin SC70 (X4-1) package measuring 1.5mm × 1.0mm × 0.8mm. The pinout is VCC (pin 1), RESET (pin 2), MR (pin 3), and GND (pin 4), as documented in the "Pin Configurations" section of the datasheet.
Can MAX6386XS22D3 operate reliably at very low supply voltages?
Yes, MAX6386XS22D3 guarantees correct reset output logic state down to VCC = 1.0V, and its supply current remains only 3µA at 1.8V. This makes it suitable for deep-brownout scenarios and ultra-low-power applications such as coin-cell–powered sensors where VCC may dip near 1V during peak loads.
How does the open-drain RESET output of MAX6386XS22D3 differ from push-pull alternatives?
The open-drain RESET output of MAX6386XS22D3 requires an external pullup resistor to establish a logic-high state when deasserted. This enables wired-OR configurations, level translation across different voltage domains, and safe interfacing with MCUs having lower I/O voltage ratings than VCC - unlike push-pull outputs which actively drive both logic states.
MAX6386XS22D3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-82A, SOT-343
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.19V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-4
MAX6386XS22D3 FAQ
1.How can I place an order for MAX6386XS22D3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6386XS22D3 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 MAX6386XS22D3 reliable?
The price and inventory of MAX6386XS22D3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6386XS22D3 is usually 5 days.
3.What payment methods are accepted for MAX6386XS22D3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6386XS22D3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6386XS22D3?
MAX6386XS22D3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6386XS22D3 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 MAX6386XS22D3?
For technical support, including MAX6386XS22D3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6386XS22D3 requirements.
6.How does Aetrix verify that MAX6386XS22D3 is sourced from the original manufacturer or authorized distributors?
All MAX6386XS22D3 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 MAX6386XS22D3 meets industry standards.
7.What is the process for return or replacement of MAX6386XS22D3?
All MAX6386XS22D3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6386XS22D3, 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 MAX6386XS22D3 part is unused and in its original packaging.
Return procedure for MAX6386XS22D3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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