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Analog Devices Inc./Maxim Integrated MAX6712ZEXS
- Part No.:
- MAX6712ZEXS
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6712ZEXS.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:2,416
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Product details
Overview
The MAX6712ZEXS from Maxim Integrated is a microprocessor supervisory circuit designed to monitor +2.5V power supplies and assert an active-high reset signal during power-up, brownout, or manual reset events. It features a precision 2.32V reset threshold (±1.5% over temperature), 140ms minimum reset timeout, 12µA supply current, and operates from -40°C to +125°C in portable and automotive systems.
For engineers reviewing the MAX6712ZEXS datasheet, MAX6712ZEXS pinout, MAX6712ZEXS application, or MAX6712ZEXS equivalent, key selection criteria include its active-high push-pull RESET output, guaranteed reset validity down to VCC = +1V, immunity to VCC transients ≤20µs at 100mV overdrive, and SC70-4 package compatibility with space-constrained embedded designs.
Technical Context
The MAX6712ZEXS implements a precision bandgap-based voltage comparator to detect VCC falling below its 2.32V threshold, with ±1.5% accuracy across -40°C to +125°C. Its internal timing circuit ensures a minimum 140ms reset pulse width after VCC recovery or MR deassertion.
It integrates a 20kΩ internal pull-up on the manual reset (MR) input, accepts TTL/CMOS logic levels, and guarantees correct RESET logic state for VCC ≥1V. The push-pull output drives high to VCC and low to <0.3V at 800µA source / 1.2mA sink, eliminating external pull-up requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.32V ±1.5% - precisely monitors +2.5V supplies with minimal undervoltage margin before reset assertion |
| Reset Timeout | ≥140ms - ensures µP completes power stabilization before release from reset | Supply Current | 12µA - enables multi-year battery life in portable equipment |
| VCC Operating Range | +1.0V to +5.5V - guarantees functional reset output even as supply decays to 1V |
| Output Type | Active-high push-pull - directly drives µP reset pins without external components |
| Temp Range | -40°C to +125°C - qualified for under-hood automotive and industrial environments |
| MR Input | Internal 20kΩ pull-up - supports momentary switch-to-ground interface with no external biasing |
Pinout & Package
MAX6712ZEXS is housed in a 4-pin SC70-4 package (2.0mm × 1.25mm × 0.9mm), optimized for high-density PCB layouts in portable and automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: RESET | Active-high push-pull reset output | Drives µP reset pin high during fault conditions; sinks current to GND when asserted low |
| 2: GND | Ground reference | Return path for all internal circuitry and output stage; must be low-impedance |
| 3: MR | Manual reset input (active-low) | Asserts reset when pulled low; internal 20kΩ pull-up allows open-circuit default high state |
| 4: VCC | Supply voltage input | Accepts +1.0V to +5.5V; powers internal comparator, timer, and output driver |
Key Features
| Feature | Design Value |
|---|---|
| Precision 2.32V threshold | ±1.5% tolerance over full temperature range ensures reliable +2.5V supply monitoring without false resets |
| 140ms min reset timeout | Guaranteed hold time prevents premature µP startup during slow-rising or noisy VCC rails |
| 12µA ultra-low ICC | Enables use in always-on battery-backed systems with multi-year operational lifetime |
| VCC = +1V reset validity | RESET output remains logically valid down to 1V supply, supporting graceful shutdown sequencing |
| No external components | Integrates pull-up on MR and push-pull driver on RESET-no resistors or capacitors required for basic operation |
Applications
| Battery-Powered IoT Sensors | Automotive Body Control Modules |
|---|---|
Use Scenario: Long-life sensor nodes powered by coin cells or small Li-ion batteries require reliable reset during cold cranking or low-battery brownout. IC Role / Device Role / Timing Role: Supervises +2.5V rail powering MCU and analog front-end; asserts active-high RESET until stable VCC ≥2.32V for ≥140ms. Use Value: 12µA quiescent current extends battery life; 2.32V threshold matches typical low-power sensor rail; SC70-4 footprint saves board area. | Use Scenario: Under-hood ECUs experience wide VCC swings during engine start-stop cycles and load dump events. IC Role / Device Role / Timing Role: Monitors +2.5V domain supplying CAN transceivers and safety-critical logic; maintains reset during VCC dips below 2.32V. Use Value: -40°C to +125°C rating ensures operation in extreme ambient; transient immunity prevents spurious resets from 20µs/100mV glitches. |
| Industrial Programmable Logic Controllers | Medical Wearable Devices |
Use Scenario: PLC I/O modules operate in electrically noisy factory environments with unstable 2.5V auxiliary rails. IC Role / Device Role / Timing Role: Provides deterministic reset initiation and release timing for ARM Cortex-M MCUs; debounces MR input internally. Use Value: Internal 20kΩ MR pull-up eliminates external biasing; push-pull output drives heavy capacitive loads without rise-time degradation. | Use Scenario: Wearables with compact form factors demand minimal component count and ultra-low power consumption. IC Role / Device Role / Timing Role: Supervises +2.5V supply feeding ultra-low-power BLE SoC; asserts RESET during battery voltage sag below safe operating level. Use Value: SC70-4 package fits tight mechanical envelopes; 12µA ICC preserves charge between periodic sensor reads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6712TEXS | 3.08V reset threshold; same SC70-4 package, temp range, and active-high push-pull output | Designed for +3.3V systems instead of +2.5V; not interchangeable without VCC rail redesign | Select only if monitoring 3.3V supply; identical timing and drive strength |
| TPS3808G12DBVR | 2.32V threshold, but active-low open-drain output; requires external pull-up; 1.8µA ICC | Lacks integrated MR pull-up; lower ICC benefits ultra-low-power sleep modes, but adds BOM cost | Prefer for battery-critical apps where 1.8µA matters more than MR simplicity; verify µP reset pin polarity compatibility |
Compared with MAX6712TEXS, the MAX6712ZEXS provides tighter voltage matching for +2.5V rails, while versus TPS3808G12DBVR it delivers plug-and-play MR integration and push-pull drive-reducing layout complexity and validation effort in production designs.
Availability
MAX6712ZEXS is available at Aetrix Electronics and suitable for battery-powered IoT sensors, automotive body control modules, and industrial programmable logic controllers requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MAX6712ZEXS 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, mixed-signal, and power management ICs for demanding industrial, automotive, and computing applications.
The MAX671x family delivers highly accurate, low-power microprocessor supervisory circuits targeting space- and power-constrained embedded systems requiring robust power-monitoring with minimal external components.
FAQ
What is the reset threshold voltage of the MAX6712ZEXS and how tightly is it specified?
The MAX6712ZEXS has a nominal reset threshold of 2.32V, specified with ±1.5% accuracy over the full -40°C to +125°C temperature range. This precision ensures reliable supervision of +2.5V power rails without false triggering near nominal voltage, and is confirmed in the device's Electrical Characteristics table under VTH parameter for Z-version parts.
Does the MAX6712ZEXS require external components to operate in a standard configuration?
No, the MAX6712ZEXS requires no external components for basic operation. Its active-high push-pull RESET output drives directly into a µP reset pin, and the MR input includes a built-in 20kΩ pull-up resistor-enabling direct connection of a momentary switch to ground without additional biasing or debounce circuitry.
How long does the MAX6712ZEXS hold reset asserted after VCC rises above the threshold?
The MAX6712ZEXS holds the RESET signal asserted for a minimum of 140ms after VCC rises above the 2.32V threshold. This guaranteed timeout is independent of VCC slew rate and ensures the monitored microprocessor has sufficient time to stabilize before exiting reset, as verified in the "Reset Active Timeout Period" specification.
Can the MAX6712ZEXS operate reliably when VCC drops below 2.5V?
Yes, the MAX6712ZEXS guarantees correct RESET logic state down to VCC = +1.0V. Below this voltage, the output enters high-impedance, but within the 1.0V–5.5V operating range-including brownout conditions at 1.8V or 2.0V-the device maintains valid active-high reset signaling per its Electrical Characteristics.
What package type and dimensions does the MAX6712ZEXS use?
The MAX6712ZEXS uses a 4-pin SC70-4 package measuring 2.0mm × 1.25mm × 0.9mm. This ultra-small outline supports high-density PCB layouts in portable, wearable, and automotive electronics, and is explicitly documented in the Package Information section and top-view pin diagram of the MAX6711/MAX6712/MAX6713 datasheet.
MAX6712ZEXS 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:
- 2.32V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-4
MAX6712ZEXS FAQ
1.How can I place an order for MAX6712ZEXS through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6712ZEXS 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 MAX6712ZEXS reliable?
The price and inventory of MAX6712ZEXS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6712ZEXS is usually 5 days.
3.What payment methods are accepted for MAX6712ZEXS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6712ZEXS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6712ZEXS?
MAX6712ZEXS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6712ZEXS 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 MAX6712ZEXS?
For technical support, including MAX6712ZEXS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6712ZEXS requirements.
6.How does Aetrix verify that MAX6712ZEXS is sourced from the original manufacturer or authorized distributors?
All MAX6712ZEXS 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 MAX6712ZEXS meets industry standards.
7.What is the process for return or replacement of MAX6712ZEXS?
All MAX6712ZEXS units undergo pre-shipment inspection (PSI). If there is an issue with MAX6712ZEXS, 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 MAX6712ZEXS part is unused and in its original packaging.
Return procedure for MAX6712ZEXS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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