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Analog Devices Inc./Maxim Integrated MAX6718AUKTID2+T
- Part No.:
- MAX6718AUKTID2+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6718AUKTID2+T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,254
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Product details
Overview
MAX6718AUKTID2+T from Maxim Integrated is a dual-supply ultra-low-voltage microprocessor supervisory circuit in SOT23-6 package, monitoring VCC1 (1.8V–5.0V) and VCC2 (0.9V–3.3V) with factory-trimmed reset thresholds, 14µA typical supply current, and 8.8ms minimum reset timeout - used to ensure reliable power-on reset and brownout protection in multivoltage embedded systems.
For engineers reviewing the MAX6718AUKTID2+T datasheet, MAX6718AUKTID2+T pinout, MAX6718AUKTID2+T application, or MAX6718AUKTID2+T equivalent, key selection criteria include dual-rail voltage monitoring capability, push-pull active-low RST output, guaranteed reset validity down to VCC = 0.8V, and AEC-Q100-qualified variants for automotive-grade reliability validation.
Technical Context
The MAX6718AUKTID2+T implements independent dual-voltage comparators with hysteresis (0.5% of threshold), internal reference generation, and a programmable reset timeout timer. It asserts RST when either VCC1 or VCC2 falls below its respective factory-trimmed threshold (VTH1 = 2.625V typ, VTH2 = 1.388V typ) and holds reset for ≥8.8ms after both supplies recover.
This variant features push-pull RST and RST2 outputs referenced to VCC1 and VCC2 respectively, manual-reset input (MR) with 50kΩ internal pullup, and operates across –40°C to +125°C. It lacks watchdog, RSTIN, PFI/PFO, and active-high RST functions - confirmed by suffix "D2" (reset timeout) and "T" (push-pull RST/RST2) in ordering code.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Reset Threshold | 2.55V (min) to 2.70V (max); factory-trimmed for 2.625V typical - ensures reliable detection of 2.7V system rail brownout |
| VCC2 Reset Threshold | 1.35V (min) to 1.425V (max); factory-trimmed for 1.388V typical - supports monitoring of 1.35V–1.4V core logic rails |
| Reset Timeout Period | 8.8ms (min); fixed per D2 suffix - provides sufficient hold time for slow-starting processors or memory initialization |
| Supply Current | 14µA (typ) at 3.6V; ≤39µA (max) - enables battery-backed operation in portable equipment with minimal quiescent load |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive and industrial control environments |
| Reset Output Type | Push-pull active-low RST and RST2 - eliminates need for external pullup resistors; RST referenced to VCC1, RST2 to VCC2 |
| Reset Validity Voltage | Guaranteed down to VCC1 or VCC2 = 0.8V - ensures deterministic reset assertion during deep brownout conditions |
Pinout & Package
SOT23-6 package (package code U6+1), 1.6mm × 2.9mm footprint, 0.95mm height, thermal resistance θJA = 115°C/W on multilayer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1; asserted when VCC1 or VCC2 drops below threshold |
| 2 | GND | Ground reference for all internal comparators and output drivers |
| 3 | MR | Active-low manual-reset input with 50kΩ internal pullup to VCC1; forces reset when pulled low |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V); powers internal VCC2 comparator and references RST2 output |
| 5 | VCC1 | Primary supply input (1.8V–5.0V); powers device core, references RST output, and enables reset logic |
| 6 | RST2 | Active-low push-pull reset output referenced to VCC2; synchronized with RST but driven from VCC2 rail |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous supervision of primary (VCC1) and secondary (VCC2) rails with separate thresholds and hysteresis |
| Push-pull RST and RST2 outputs | Eliminates external pullup components; supports direct interface to CMOS inputs without level-shifting |
| Guaranteed reset down to 0.8V | Ensures valid reset assertion even during severe undervoltage events before full power collapse |
| Low 14µA supply current | Minimizes standby power draw in always-on subsystems such as automotive body controllers or IoT edge nodes |
| –40°C to +125°C operation | Validated for extended temperature range applications including engine control units and industrial PLCs |
Applications
| Automotive Body Control Module | Industrial Programmable Logic Controller |
|---|---|
Use Scenario: Monitors 5V microcontroller supply and 3.3V I/O expander rail in vehicle door module. IC Role / Device Role / Timing Role: Dual-rail supervisor asserting synchronized RST and RST2 to hold MCU and peripheral ICs in reset until both rails stabilize post-battery cold-crank. Use Value: Prevents spurious MCU execution during 6V–9V cranking transients; push-pull outputs drive multiple loads without external biasing. |
Use Scenario: Supervises 2.5V FPGA configuration rail and 1.2V core voltage in DIN-rail mounted PLC CPU. IC Role / Device Role / Timing Role: Ensures deterministic power-on sequence by holding FPGA in reset until both supplies exceed 2.4V and 1.15V respectively. Use Value: Factory-trimmed thresholds eliminate calibration overhead; 8.8ms timeout accommodates FPGA bitstream loading latency. |
| Medical Infusion Pump Controller | Telecom Remote Radio Unit |
Use Scenario: Validates 3.3V ARM Cortex-M4 supply and 1.8V ADC reference rail in battery-powered infusion pump. IC Role / Device Role / Timing Role: Guarantees safe shutdown and restart upon battery voltage sag below 3.0V or 1.6V thresholds. Use Value: 14µA quiescent current extends battery life; reset validity to 0.8V ensures fail-safe behavior during final battery discharge. |
Use Scenario: Monitors 12V DC-DC converted 5V main processor rail and 3.3V PHY interface rail in outdoor RRH unit. IC Role / Device Role / Timing Role: Dual-supply reset coordination prevents partial initialization of baseband and RF subsystems during AC brownouts. Use Value: SOT23-6 footprint saves PCB area in space-constrained RF modules; –40°C to +125°C rating matches outdoor thermal envelope. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-supply supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6717AUKTID2+T | Open-drain RST/RST2 outputs; requires external pullups; same thresholds and timeout | Suitable where level translation or wired-OR reset bus is needed | Select when interfacing to legacy µPs requiring open-drain reset signaling or shared reset busses |
| TPS3808G18DBVR | Single-supply (1.8V only), 200ms timeout, 2.5µA IQ, SOT23-6 | Lacks dual-rail monitoring; optimized for ultra-low-power single-rail systems | Choose only if monitoring one rail suffices and longer timeout with lower IQ is acceptable |
Compared with MAX6717AUKTID2+T, the MAX6718AUKTID2+T eliminates external pullup components via push-pull outputs; versus TPS3808G18DBVR, it provides true dual-voltage supervision with tighter threshold accuracy and shorter timeout - critical for multirail SoC power sequencing.
Availability
MAX6718AUKTID2+T is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLCs, medical infusion pumps, and telecom remote radio units requiring stable component supply with guaranteed long-term availability and AEC-Q100-aligned quality assurance.
Supply support for MAX6718AUKTID2+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, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.
The MAX6715A–MAX6729A family delivers compact, low-power supervisory solutions for multivoltage systems - engineered to replace discrete reset circuits while ensuring robust power-fail detection and reset timing integrity.
FAQ
What is the reset threshold voltage for VCC1 on the MAX6718AUKTID2+T?
The MAX6718AUKTID2+T has a factory-trimmed VCC1 reset threshold of 2.55V (min) to 2.70V (max), with 2.625V typical. This value is fixed per the "R" suffix in the reset threshold coding and applies across the full –40°C to +125°C operating range with ±0.5% hysteresis. The MAX6718AUKTID2+T does not support adjustable VCC1 thresholds.
Does the MAX6718AUKTID2+T include a watchdog timer function?
No, the MAX6718AUKTID2+T does not include a watchdog timer. Its ordering suffix "D2" denotes 8.8ms reset timeout only, and "T" indicates push-pull RST/RST2 outputs - confirming absence of WDI pin functionality. Watchdog capability is present only in MAX6721A–MAX6729A/MAX6797A variants with "W" or "WD" suffixes.
Can the MAX6718AUKTID2+T monitor a third voltage rail?
No, the MAX6718AUKTID2+T is a dual-supply supervisor only. It monitors VCC1 and VCC2 exclusively. Third-rail monitoring via RSTIN is available only in MAX6719A/MAX6720A/MAX6723A–MAX6727A variants (suffix "I" or "IN"), which are not implemented in the MAX6718AUKTID2+T pinout or internal circuitry.
What is the maximum supply voltage the MAX6718AUKTID2+T can tolerate on VCC1 and VCC2?
The MAX6718AUKTID2+T supports absolute maximum VCC1 and VCC2 voltages of +6V, with recommended operating range of 0.8V to 5.5V per rail. Exceeding 6V risks permanent damage. The device guarantees correct reset logic state as long as at least one supply remains ≥0.8V - a key reliability feature for brownout resilience.
Is the MAX6718AUKTID2+T AEC-Q100 qualified?
The MAX6718AUKTID2+T itself is not explicitly AEC-Q100 qualified per official Maxim/Analog Devices documentation; however, the closely related MAX6719AUTTWD1/V+T variant in the same family is AEC-Q100 Grade 1 qualified. For automotive applications requiring formal qualification, engineers should verify compliance status directly with Analog Devices' automotive product line or select the designated AEC-Q100 variants.
MAX6718AUKTID2+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 1.388V, 3.075V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 8.8ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6718AUKTID2+T FAQ
1.How can I place an order for MAX6718AUKTID2+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6718AUKTID2+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 MAX6718AUKTID2+T reliable?
The price and inventory of MAX6718AUKTID2+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6718AUKTID2+T is usually 5 days.
3.What payment methods are accepted for MAX6718AUKTID2+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6718AUKTID2+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6718AUKTID2+T?
MAX6718AUKTID2+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6718AUKTID2+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 MAX6718AUKTID2+T?
For technical support, including MAX6718AUKTID2+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6718AUKTID2+T requirements.
6.How does Aetrix verify that MAX6718AUKTID2+T is sourced from the original manufacturer or authorized distributors?
All MAX6718AUKTID2+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 MAX6718AUKTID2+T meets industry standards.
7.What is the process for return or replacement of MAX6718AUKTID2+T?
All MAX6718AUKTID2+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6718AUKTID2+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 MAX6718AUKTID2+T part is unused and in its original packaging.
Return procedure for MAX6718AUKTID2+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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