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Analog Devices Inc./Maxim Integrated MAX6712TEXS+
- Part No.:
- MAX6712TEXS+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6712TEXS+.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:2,266
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Product details
Overview
MAX6712TEXS+ from Maxim Integrated is a precision microprocessor supervisory circuit with active-high push-pull RESET output, designed to monitor +3.0V power supplies in embedded systems. It asserts reset when VCC falls below 3.08V (typ), maintains reset for ≥140ms after recovery, and draws only 12µA supply current at VCC < 3.6V and TA ≤ +85°C. It features a debounced manual reset input (MR), guaranteed reset validity down to VCC = +1V, and operates across –40°C to +125°C.
For engineers reviewing the MAX6712TEXS+ datasheet, MAX6712TEXS+ pinout, MAX6712TEXS+ application, or MAX6712TEXS+ equivalent, key selection criteria include its 3.08V reset threshold, active-high push-pull output, SC70-4 package, manual reset timing behavior, and immunity to fast VCC transients - all critical for reliable power-on reset in battery-powered and industrial µP systems.
Technical Context
The MAX6712TEXS+ integrates a precision voltage comparator with 30ppm/°C tempco and internal 20kΩ MR pull-up resistor, enabling robust brownout detection without external components. Its reset timeout is temperature-compensated, delivering 140–460ms assertion over –40°C to +125°C.
Unlike open-drain variants (e.g., MAX6713), the MAX6712TEXS+ uses a push-pull output stage that actively drives high and low, eliminating need for external pull-up resistors. Its MR input accepts TTL/CMOS logic levels and supports noise immunity via optional 0.1µF capacitor to ground.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.08V (typ) at +25°C; ensures reliable reset assertion before µP operational failure on 3.0V rails |
| Reset Timeout | ≥140ms min after VCC rise; guarantees full µP initialization before release |
| Supply Current | 12µA (typ) at VCC < 3.6V, TA ≤ +85°C; enables multi-year battery life in portable equipment |
| Operating Temp | –40°C to +125°C; supports automotive under-hood and industrial control environments |
| VCC Range | 1.2V to 5.5V (–40°C to +105°C); allows operation during deep brownout while maintaining reset integrity |
| Reset Output Type | Active-high push-pull; drives high/low without external components, simplifying PCB layout |
| MR Input Logic | Active-low with internal 20kΩ pull-up; eliminates external biasing and supports switch or logic-driven reset |
Pinout & Package
MAX6712TEXS+ is housed in a 4-pin SC70 (X4-1) package - compact (1.3mm × 1.6mm × 0.95mm), surface-mount, RoHS-compliant, and optimized for space-constrained portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Ground reference | Return path for internal comparator and output driver; must be low-impedance connection to system ground plane |
| 2 RESET | Active-high reset output | Push-pull driver asserts HIGH during reset; sinks/source up to 1.2mA; valid down to VCC = +1V |
| 3 MR | Manual reset input | Active-low input with internal 20kΩ pull-up; deasserts reset after ≥140ms delay upon release; immune to <100ns glitches |
| 4 VCC | Supply voltage input | Monitored rail (+3.0V nominal); powers internal circuitry and defines reset threshold reference |
Key Features
| Feature | Design Value |
|---|---|
| Precision 3.08V threshold | ±1.5% tolerance over temperature ensures deterministic reset point for 3.0V systems without calibration |
| No external components | Integrated MR pull-up, comparator, and push-pull driver eliminate discrete resistors/capacitors, reducing BOM count and board area |
| 140ms min reset pulse | Guaranteed minimum duration prevents premature µP release during slow-rising or noisy power rails |
| VCC transient immunity | Rejects negative-going VCC glitches as short as 20µs at 100mV overdrive, preventing spurious resets |
| Valid reset to 1V | RESET remains functional even as VCC decays to 1V, ensuring fail-safe behavior during deep brownout |
Applications
| Portable/Battery-Powered Equipment | Critical µP and µC Power Monitoring |
|---|---|
|
Use Scenario: Handheld medical meters powered by single-cell Li-ion batteries with dynamically varying 2.7–3.6V output. IC Role / Device Role / Timing Role: Supervisory circuit monitoring 3.0V LDO output; asserts active-high RESET until stable voltage is confirmed. Use Value: 12µA quiescent current extends battery life; 140ms reset pulse ensures complete µC boot sequence before peripheral initialization. |
Use Scenario: Industrial PLC controller requiring deterministic restart after AC line sags or backup battery switchover. IC Role / Device Role / Timing Role: Primary brownout detector on main 3.3V logic rail; provides fail-safe reset independent of software watchdog. Use Value: 30ppm/°C tempco and –40°C to +125°C rating ensure consistent 3.08V trip point across environmental stress tests. |
| Computers | Intelligent Instruments |
|
Use Scenario: Embedded x86-based edge gateway with dual-rail power (5V/3.3V), where 3.0V I/O rail powers sensor interface ASICs. IC Role / Device Role / Timing Role: Dedicated supervisor for 3.0V domain; coordinates reset sequencing with main 5V supervisor via MR chaining. Use Value: Active-high push-pull output interfaces directly with ASIC reset inputs without level-shifting or pull-up resistors. |
Use Scenario: Portable oscilloscope with FPGA-based signal processing, requiring clean reset during battery insertion or hot-swap events. IC Role / Device Role / Timing Role: Manual reset initiator triggered by front-panel button; debounces mechanical switch bounce internally. Use Value: Internal 20kΩ MR pull-up and 100ns glitch immunity eliminate need for external RC filtering or Schmitt triggers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6712TES+ | Same 3.08V threshold and push-pull output, but in leaded (non-RoHS) SC70 package; no "+" suffix in ordering code | Used in legacy designs requiring Pb-containing solder compatibility or exemption from RoHS compliance | Select MAX6712TES+ only if leaded assembly process is mandated; otherwise MAX6712TEXS+ is preferred for RoHS compliance |
| TPS3123E18DBVR | 3.08V threshold, active-high push-pull, but rated only to +85°C; 2.5µA typical ICC vs. 12µA | Suitable for commercial-grade consumer electronics, not extended-temp industrial or automotive use | Choose TPS3123E18DBVR for cost-sensitive, non-extended-temp applications where ultra-low ICC is prioritized over temperature range |
Compared with MAX6712TEXS+, MAX6712TES+ offers identical electrical performance but lacks RoHS compliance, while TPS3123E18DBVR trades temperature range and reset timing stability for lower quiescent current - making MAX6712TEXS+ optimal for ruggedized, wide-temperature µP supervision.
Availability
MAX6712TEXS+ is available at Aetrix Electronics and suitable for portable/battery-powered equipment, critical µP and µC power monitoring, and intelligent instruments requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6712TEXS+ 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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, computing, and communications markets.
The MAX671x family was engineered specifically for precision, low-power microprocessor supervision in space- and energy-constrained systems - emphasizing accuracy, temperature stability, and integration to replace discrete reset solutions.
FAQ
What is the reset threshold voltage of the MAX6712TEXS+ and how does it vary with temperature?
The MAX6712TEXS+ has a nominal reset threshold of 3.08V at +25°C, with ±1.5% tolerance over –40°C to +125°C. Its temperature coefficient is 30ppm/°C, meaning the threshold drifts less than ±15mV across the full operating range - ensuring predictable brownout response in thermal-cycling environments. This value is factory-trimmed and specified in the Electrical Characteristics table of the MAX6712TEXS+ datasheet.
Does the MAX6712TEXS+ require external components for basic reset functionality?
No, the MAX6712TEXS+ requires no external components for core supervision: its internal 20kΩ MR pull-up resistor, precision voltage reference, and push-pull RESET driver eliminate the need for discrete resistors, capacitors, or diodes. Only bypass capacitance (e.g., 0.1µF ceramic near VCC) is recommended for noise immunity - a standard practice, not a functional requirement for MAX6712TEXS+ operation.
How does the manual reset (MR) input behave on the MAX6712TEXS+?
The MR input on the MAX6712TEXS+ is active-low with an internal 20kΩ pull-up resistor. When pulled low (≤0.3×VCC), it immediately asserts RESET; RESET remains asserted for ≥140ms after MR returns high. The input rejects glitches <100ns and supports direct connection to switches, logic gates, or open-drain drivers - no external debounce circuitry is needed for MAX6712TEXS+.
What is the supply current consumption of the MAX6712TEXS+ across its operating conditions?
The MAX6712TEXS+ draws 12µA (typ) at VCC < 3.6V and TA ≤ +85°C, rising to 75µA at +85°C to +105°C. At VCC = 1V, supply current remains functional but increases slightly. This ultra-low ICC enables multi-year operation in coin-cell–powered devices and aligns with the MAX6712TEXS+ design goal of minimizing standby power in portable systems.
Can the MAX6712TEXS+ operate reliably during fast VCC transients or power glitches?
Yes, the MAX6712TEXS+ is designed to ignore fast negative-going VCC transients: a 100mV overdrive glitch lasting ≤20µs (at +25°C) will not trigger a false reset. This immunity stems from internal comparator hysteresis and filtering, validated in the "Negative-Going VCC Transients" section of the MAX6712TEXS+ datasheet - critical for noisy DC-DC converter outputs or shared power rails.
MAX6712TEXS+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-82A, SOT-343
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-4
MAX6712TEXS+ FAQ
1.How can I place an order for MAX6712TEXS+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6712TEXS+ 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 MAX6712TEXS+ reliable?
The price and inventory of MAX6712TEXS+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6712TEXS+ is usually 5 days.
3.What payment methods are accepted for MAX6712TEXS+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6712TEXS+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6712TEXS+?
MAX6712TEXS+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6712TEXS+ 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 MAX6712TEXS+?
For technical support, including MAX6712TEXS+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6712TEXS+ requirements.
6.How does Aetrix verify that MAX6712TEXS+ is sourced from the original manufacturer or authorized distributors?
All MAX6712TEXS+ 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 MAX6712TEXS+ meets industry standards.
7.What is the process for return or replacement of MAX6712TEXS+?
All MAX6712TEXS+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6712TEXS+, 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 MAX6712TEXS+ part is unused and in its original packaging.
Return procedure for MAX6712TEXS+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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