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Analog Devices Inc./Maxim Integrated MAX6717UKSYD3+T
- Part No.:
- MAX6717UKSYD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6717UKSYD3+T.pdf
- Description:
- IC SUPERVISOR MPU SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,496
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Product details
Overview
The MAX6717UKSYD3+T from Maxim Integrated is a dual-voltage microprocessor supervisory circuit in 5-pin SOT23 package, monitoring VCC1 (primary supply) and VCC2 (secondary supply) with factory-trimmed reset thresholds of 2.125V and 0.810V respectively, 210ms minimum reset timeout, and open-drain active-low RST output. It ensures reliable system reset during brownout conditions in battery-powered or multivoltage embedded systems.
For engineers reviewing the MAX6717UKSYD3+T datasheet, MAX6717UKSYD3+T pinout, MAX6717UKSYD3+T application, or MAX6717UKSYD3+T equivalent, key selection criteria include dual-supply threshold accuracy (±2.5% over temperature), guaranteed reset validity down to VCC1/VCC2 = 0.8V, ultra-low 14µA typical supply current at 3.6V, and immunity to sub-20µs VCC transients.
Technical Context
This device implements two independent voltage comparators with internal 20ppm/°C tempco references, each feeding a shared reset timeout timer. The RST output remains asserted for ≥210ms after both VCC1 and VCC2 exceed their respective thresholds, preventing premature release during supply recovery.
No watchdog, manual reset, power-fail, or adjustable RSTIN inputs are enabled in this variant-confirmed by Selector Guide and ordering suffix D3 (210ms timeout) and UK (5-pin SOT23, dual-monitor, open-drain RST). Pin 3 is unused (no MR), and pin 5 is RST2-not present in 5-pin configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 2.125V (typ), ±2.5% over -40°C to +85°C - sets primary supply brownout detection point |
| VCC2 Threshold | 0.810V (typ), ±2.5% over -40°C to +85°C - enables monitoring of low-voltage core supplies |
| Reset Timeout | 210ms (min) - ensures µP reset hold time meets boot initialization requirements |
| Supply Current | 14µA (typ) at 3.6V - supports >10-year battery life in always-on portable equipment |
| Operating Temp | -40°C to +85°C - qualified for industrial and telecom infrastructure environments |
| Reset Validity | Down to VCC1 or VCC2 = 0.8V - guarantees correct logic state during deep brownout |
| VCC Transient Immunity | Immune to <20µs negative glitches - prevents spurious resets from switching noise |
Pinout & Package
MAX6717UKSYD3+T uses a 5-pin SOT23-5 package (2.9mm × 1.6mm × 1.1mm), with pins arranged linearly: Pin 1 = RST (open-drain active-low reset output), Pin 2 = GND, Pin 3 = NC (no connect), Pin 4 = VCC2 (secondary supply input), Pin 5 = VCC1 (primary supply input). No internal pullup on RST; external pullup required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Open-drain active-low reset output; requires external pullup to VCC1; asserts when either supply falls below threshold |
| 2 | GND | Analog/digital ground reference for all internal comparators and timing circuits |
| 3 | NC | No internal connection; must be left floating or tied to GND per layout best practice |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V range); powers internal VCC2 comparator and sets VTH2 = 0.810V |
| 5 | VCC1 | Primary supply input (1.8V–5.0V range); powers device core and sets VTH1 = 2.125V |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous VCC1 and VCC2 supervision with separate factory-trimmed thresholds avoids cascaded failure modes |
| Guaranteed reset validity at 0.8V | Ensures deterministic reset assertion even during severe brownout-critical for flash write integrity |
| Low 14µA supply current | Enables integration into energy-constrained IoT nodes without compromising battery runtime |
| 20ppm/°C threshold tempco | Maintains tight voltage detection accuracy across industrial temperature range without calibration |
| 20µs VCC transient immunity | Rejects high-frequency noise from DC/DC converters, eliminating false resets in dense PCB layouts |
Applications
| Industrial PLC I/O Modules | Portable Medical Sensors |
|---|---|
Use Scenario: Monitoring 3.3V I/O rail and 1.2V FPGA core supply in DIN-rail mounted controllers exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Dual-supply supervisor asserting reset if either rail drops below spec during ESD events or thermal stress. Use Value: Prevents corrupted register writes during brownout, ensuring deterministic state recovery after power interruption. |
Use Scenario: Battery-powered glucose meter with 3.0V main supply and 1.8V sensor interface ASIC. IC Role / Device Role / Timing Role: Supervises both rails to guarantee MCU reset before ADC sampling begins under low-battery conditions. Use Value: Eliminates erroneous glucose readings caused by marginal supply operation during battery depletion. |
| Network Edge Routers | Smart Energy Meters |
Use Scenario: 12V-to-3.3V/1.1V DC/DC conversion chain powering CPU and PHY in fanless edge gateway. IC Role / Device Role / Timing Role: Detects undervoltage on both post-regulator outputs to halt packet forwarding before memory corruption occurs. Use Value: Reduces field failures from silent data corruption during line-voltage sags in unconditioned AC environments. |
Use Scenario: Tamper-resistant electricity meter with backup supercapacitor maintaining real-time clock during mains outage. IC Role / Device Role / Timing Role: Monitors main 5V rail and backup 3.3V rail to initiate secure shutdown sequence before capacitor discharge completes. Use Value: Preserves billing data integrity and cryptographic keys during power loss transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3808G125DBVR | Single-supply monitor (VDD only); 1.25V fixed threshold; 200ms timeout; push-pull RST | Lacks VCC2 monitoring capability; requires external resistor divider for secondary rail detection | Select when only primary rail supervision is needed and board space permits discrete divider network |
| ADM6710LAKSZ-RL7 | Dual-supply with 2.13V/0.81V thresholds; 200ms timeout; push-pull RST; -40°C to +125°C rating | Higher temperature grade but 10% larger SOT23-6 footprint; no SOT23-5 option available | Choose for extended temperature deployments where 125°C operation is mandatory |
Compared with TPS3808G125DBVR and ADM6710LAKSZ-RL7, the MAX6717UKSYD3+T uniquely delivers matched dual-threshold supervision in the smallest 5-pin SOT23 package with guaranteed 0.8V reset validity-enabling compact, robust brownout protection without design compromises.
Availability
MAX6717UKSYD3+T is available at Aetrix Electronics and suitable for industrial PLCs, portable medical sensors, and smart energy meters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6717UKSYD3+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 and mixed-signal ICs for power, sensing, and connectivity applications, with leadership in supervisory, PMIC, and interface solutions.
The MAX6715–MAX6729 family was engineered specifically for multivoltage embedded systems needing compact, ultra-low-power reset supervision with guaranteed operation down to 0.8V supply-targeting battery-operated and industrial equipment.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6717UKSYD3+T?
The MAX6717UKSYD3+T has factory-trimmed reset thresholds of 2.125V (VCC1, ±2.5%) and 0.810V (VCC2, ±2.5%) over -40°C to +85°C. These values are fixed by the 'Y' and 'D' suffixes in the part number per Maxim's Reset Voltage Threshold Suffix Guide and are confirmed in the Electrical Characteristics table on page 3 of the datasheet.
Does the MAX6717UKSYD3+T support manual reset or watchdog functionality?
No-the MAX6717UKSYD3+T does not include manual reset (MR), watchdog input (WDI), or power-fail (PFI/PFO) features. Its Selector Guide entry confirms "√" only for dual-voltage monitoring and open-drain RST; pins 3 (MR) and 5 (RST2) are NC in this 5-pin variant, and no WDI/PFI functions are implemented.
What package type and dimensions does the MAX6717UKSYD3+T use?
The MAX6717UKSYD3+T uses a 5-pin SOT23-5 package measuring 2.9mm × 1.6mm × 1.1mm (body), with standard JEDEC MO-178AC outline. Pin 1 is RST (open-drain), Pin 2 is GND, Pin 3 is NC, Pin 4 is VCC2, and Pin 5 is VCC1-verified in the Pin Configurations section and Ordering Information table.
How long does the reset signal remain asserted after supply recovery on the MAX6717UKSYD3+T?
The MAX6717UKSYD3+T maintains reset assertion for a minimum of 210ms after both VCC1 and VCC2 rise above their respective thresholds. This timeout is set by the 'D3' suffix and is guaranteed over temperature, ensuring sufficient hold time for microprocessor initialization sequences.
Is an external pullup resistor required for the RST output of the MAX6717UKSYD3+T?
Yes-an external pullup resistor is mandatory for the open-drain RST output of the MAX6717UKSYD3+T. The datasheet specifies no internal pullup; typical values range from 10kΩ to 100kΩ to VCC1, selected based on bus capacitance and rise-time requirements. Failure to install this resistor results in undefined RST logic levels.
MAX6717UKSYD3+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:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 2.188V, 2.925V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6717UKSYD3+T FAQ
1.How can I place an order for MAX6717UKSYD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6717UKSYD3+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 MAX6717UKSYD3+T reliable?
The price and inventory of MAX6717UKSYD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6717UKSYD3+T is usually 5 days.
3.What payment methods are accepted for MAX6717UKSYD3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6717UKSYD3+T transactions.
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4.How is shipping managed for MAX6717UKSYD3+T?
MAX6717UKSYD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6717UKSYD3+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 MAX6717UKSYD3+T?
For technical support, including MAX6717UKSYD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6717UKSYD3+T requirements.
6.How does Aetrix verify that MAX6717UKSYD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6717UKSYD3+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 MAX6717UKSYD3+T meets industry standards.
7.What is the process for return or replacement of MAX6717UKSYD3+T?
All MAX6717UKSYD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6717UKSYD3+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 MAX6717UKSYD3+T part is unused and in its original packaging.
Return procedure for MAX6717UKSYD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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