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Analog Devices Inc./Maxim Integrated MAX6711MEXS
- Part No.:
- MAX6711MEXS
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6711MEXS.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:460
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Product details
Overview
The MAX6711MEXS from Maxim Integrated is a precision microprocessor supervisory circuit in SC70-4 package, designed to monitor +5.0V power supplies and assert an active-low push-pull reset signal when VCC drops below 4.63V. It guarantees reset assertion for ≥140ms after power-up or manual reset deassertion, supports manual reset input with internal 20kΩ pull-up, and operates reliably down to VCC = +1V - ideal for industrial controllers and portable embedded systems.
For engineers reviewing the MAX6711MEXS datasheet, MAX6711MEXS pinout, MAX6711MEXS application, or MAX6711MEXS equivalent, key selection criteria include its 4.63V reset threshold, 12µA supply current, push-pull output architecture, -40°C to +125°C operating range, and compatibility with 5V µP reset interfaces requiring glitch-immune, no-external-component supervision.
Technical Context
The MAX6711MEXS implements a precision bandgap-based voltage comparator with ±1.5% threshold accuracy over temperature, ensuring deterministic reset activation at 4.63V (±69mV) across -40°C to +125°C. Its internal timing circuitry generates a guaranteed minimum 140ms reset pulse width after VCC recovery or MR release, independent of supply ramp rate.
It features TTL/CMOS-compatible manual reset input with 100ns glitch immunity and 200ns MR-to-reset delay, and its push-pull RESET output drives low to ≤0.3V at 800µA sink while sourcing ≤0.3·VCC high-level voltage - enabling direct interface with standard 5V µP reset inputs without external pull-ups.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.63V ±69mV (±1.5%) - ensures reliable reset assertion before 5V supply falls to 4.56V under worst-case conditions |
| Supply Current | 12µA typical at +25°C - enables multi-year battery life in always-on portable monitoring circuits |
| Reset Pulse Width | ≥140ms minimum - satisfies Intel/ARM µP power-on reset timing requirements without external RC |
| VCC Operating Range | +1.0V to +5.5V - guarantees valid RESET state even during deep brownout down to 1V |
| Output Type | Active-low push-pull - eliminates need for external pull-up resistor; drives µP reset pin directly |
| MR Input | Internal 20kΩ pull-up; accepts TTL/CMOS logic or momentary switch to GND - no external components required |
| Temperature Range | -40°C to +125°C - qualified for under-hood automotive and industrial control environments |
Pinout & Package
MAX6711MEXS is housed in a 4-pin SC70-4 package (2.0mm × 2.1mm, 0.65mm pitch), optimized for space-constrained PCB layouts in portable and automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: RESET | Active-low push-pull reset output | Drives µP reset pin low during fault; sinks 800µA min at VOL ≤0.3V - no pull-up needed |
| 2: GND | Ground reference | Return path for internal comparator and output stage; must be low-impedance connection |
| 3: MR | Manual reset input (active-low) | Internally pulled up to VCC via 20kΩ; asserts reset when pulled to GND - debounced internally |
| 4: VCC | Supply voltage input | Accepts +2.5V to +5.5V; powers internal circuitry and defines reset threshold reference |
Key Features
| Feature | Design Value |
|---|---|
| Precision 4.63V reset threshold | ±1.5% tolerance over full -40°C to +125°C range - eliminates need for calibration or trimming |
| No external components required | Integrated pull-up on MR, push-pull RESET, and precision reference - reduces BOM count and layout area |
| 140ms minimum reset timeout | Guaranteed by internal RC timing - meets JEDEC JESD8-12B µP reset hold-time requirements |
| VCC transient immunity | Rejects negative-going glitches ≤20µs at 100mV overdrive - prevents spurious resets in noisy power rails |
| Valid reset down to VCC = +1V | RESET remains logic-low until VCC rises above 4.63V - ensures µP stays held during deep brownout |
Applications
| Industrial PLC Controllers | Automotive Body Control Modules |
|---|---|
Use Scenario: Monitoring 5V system rail in programmable logic controller cabinets exposed to wide ambient temperature swings and EMI. IC Role / Device Role / Timing Role: Supervisory IC asserting active-low reset to ARM Cortex-M7 µP during cold-start voltage ramp and load-dump transients. Use Value: Guarantees ≥140ms reset hold time and rejects 20µs VCC glitches - prevents firmware corruption during factory commissioning. |
Use Scenario: Reset supervision for infotainment head-unit MCU powered from vehicle's 5V DC-DC converter. IC Role / Device Role / Timing Role: Active-low push-pull supervisor interfacing directly with Renesas R-Car H3 reset pin without external components. Use Value: -40°C to +125°C operation and 4.63V threshold ensure reliable reset during engine cranking (VCC dip to 4.5V). |
| Portable Medical Monitors | Smart Energy Meters |
Use Scenario: Battery-powered ECG monitor requiring ultra-low-power supervision during sleep/wake cycles. IC Role / Device Role / Timing Role: Low-current (12µA) reset supervisor holding ADuCM360 µP in reset until stable 5V LDO output is established. Use Value: Enables >5-year shelf life on coin-cell backup; manual reset via tactile switch supports field recalibration. |
Use Scenario: Tamper-resistant electricity meter with isolated µP reset path and long-term reliability requirements. IC Role / Device Role / Timing Role: Precision 4.63V supervisor detecting brownout on 5V metrology rail and asserting reset to TI MSP430F6779. Use Value: ±1.5% threshold accuracy avoids false resets during line-voltage sags within ANSI C12.1 limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326LUR29 | Fixed 2.93V reset threshold; SOT23-3 package; 1.6µA supply current | Designed for 3.3V systems; lacks manual reset input and push-pull drive strength | Select only if lower supply current and 3.3V monitoring are primary requirements |
| TPS3808G12DBVR | Adjustable reset threshold (0.4–5.8V); 1.8µA supply current; open-drain output | Requires external pull-up; no integrated MR pull-up; different timing characteristics | Choose when design requires programmable threshold or integration with mixed-voltage reset buses |
Compared with MAX6711MEXS, MAX6326LUR29 offers lower quiescent current but cannot supervise 5V rails or support manual reset, while TPS3808G12DBVR provides threshold flexibility at the cost of added external components and loss of guaranteed 140ms pulse width.
Availability
MAX6711MEXS is available at Aetrix Electronics and suitable for industrial controllers, automotive body electronics, and portable medical devices requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6711MEXS 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, with emphasis on reliability, low power, and integration.
The MAX6711 series belongs to Maxim's microprocessor supervisory product line, engineered specifically for robust, no-compromise power-monitoring in mission-critical embedded systems where reset integrity directly impacts functional safety.
FAQ
What is the exact reset threshold voltage of the MAX6711MEXS and how tightly is it specified?
The MAX6711MEXS has a nominal reset threshold of 4.63V, specified with ±1.5% accuracy over the full -40°C to +125°C temperature range. This corresponds to a guaranteed range of 4.56V to 4.70V at +25°C and 4.50V to 4.75V across temperature extremes - ensuring deterministic reset behavior in 5V systems without margin uncertainty.
Does the MAX6711MEXS require any external components to operate correctly?
No, the MAX6711MEXS requires zero external components: its manual reset (MR) input includes a built-in 20kΩ pull-up resistor, its active-low RESET output is push-pull (no pull-up needed), and its precision voltage reference is fully integrated. Only VCC decoupling (e.g., 0.1µF ceramic) is recommended per best practices - not required for basic functionality.
How does the MAX6711MEXS behave when VCC drops below 1V?
The MAX6711MEXS guarantees valid RESET output down to VCC = +1V: RESET remains low until VCC rises above 4.63V. Below 1V, the output stage disables and becomes high-impedance - but this aligns with µP operation, as most processors cease functioning below 1V. For edge cases requiring RESET validity to 0V, a 100kΩ pull-down is recommended.
What is the minimum reset pulse width guaranteed by the MAX6711MEXS?
The MAX6711MEXS guarantees a minimum reset pulse width of 140ms after VCC rises above the 4.63V threshold or after the manual reset (MR) input is released. This timing is internally generated and unaffected by supply ramp rate, meeting JEDEC and ARM µP power-on reset hold-time specifications without external timing components.
Can the MAX6711MEXS be used with 3.3V or 2.5V supply rails?
No - the MAX6711MEXS is specifically configured for 5.0V systems with a fixed 4.63V reset threshold. For 3.3V rails, use MAX6711TEXS (3.08V threshold); for 2.5V, use MAX6711ZEXS (2.32V). Each variant shares the same SC70-4 package and feature set but differs in threshold voltage and ordering suffix.
MAX6711MEXS 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:
- 4.38V
- Output:
- Push-Pull, Totem Pole
- 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
MAX6711MEXS FAQ
1.How can I place an order for MAX6711MEXS through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6711MEXS 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 MAX6711MEXS reliable?
The price and inventory of MAX6711MEXS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6711MEXS is usually 5 days.
3.What payment methods are accepted for MAX6711MEXS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6711MEXS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6711MEXS?
MAX6711MEXS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6711MEXS 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 MAX6711MEXS?
For technical support, including MAX6711MEXS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6711MEXS requirements.
6.How does Aetrix verify that MAX6711MEXS is sourced from the original manufacturer or authorized distributors?
All MAX6711MEXS 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 MAX6711MEXS meets industry standards.
7.What is the process for return or replacement of MAX6711MEXS?
All MAX6711MEXS units undergo pre-shipment inspection (PSI). If there is an issue with MAX6711MEXS, 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 MAX6711MEXS part is unused and in its original packaging.
Return procedure for MAX6711MEXS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6711MEXS Tags
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