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Analog Devices Inc./Maxim Integrated MAX6717UKSDD3
- Part No.:
- MAX6717UKSDD3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6717UKSDD3.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:860
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Product details
Overview
MAX6717UKSDD3 from Maxim Integrated is a dual-voltage microprocessor supervisory IC in 5-pin SOT23 package, monitoring VCC1 (primary supply) and VCC2 (secondary supply) with factory-trimmed reset thresholds of 4.625V (VTH1) and 3.075V (VTH2), 210ms minimum reset timeout, and open-drain active-low RST output. It ensures reliable system reset during power-up, brownout, or undervoltage events in space-constrained embedded systems.
For engineers reviewing the MAX6717UKSDD3 datasheet, MAX6717UKSDD3 pinout, MAX6717UKSDD3 application, or MAX6717UKSDD3 equivalent, this page delivers verified electrical parameters, exact pin functions, dual-supply monitoring context, reset timing behavior, and validated alternative parts for multivoltage system design.
Technical Context
The MAX6717UKSDD3 implements independent voltage comparators for VCC1 and VCC2, each with ±0.5% hysteresis and 20 ppm/°C tempco, guaranteeing valid reset assertion down to VCC1 or VCC2 = 0.8V. Its internal reset timeout timer is factory-set to 210ms (min), non-adjustable, and restarts if either supply falls below threshold before timeout completion.
This device lacks RSTIN, WDI, PFI, and PFO functionality-confirmed by Selector Guide and Pin Configuration tables-and supports only manual reset (MR) input with 50kΩ internal pullup to VCC1 and 200ns MR-to-RST delay. It provides a single open-drain RST output referenced to VCC1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.625V (typ), factory-trimmed; monitors primary supply (e.g., 5V rail) with ±0.125V tolerance at +25°C |
| VCC2 Threshold | 3.075V (typ), factory-trimmed; monitors secondary supply (e.g., 3.3V I/O rail) with ±0.075V tolerance |
| Reset Timeout | 210ms (min); ensures µP remains held in reset long enough for stable power sequencing and initialization |
| Supply Current | 14µA (typ) at 3.6V; enables ultra-low-power operation in battery-backed or always-on systems |
| Operating Temp | -40°C to +85°C; qualified for industrial-grade embedded applications without derating |
| Reset Output | Open-drain active-low RST; requires external pullup; sinks ≥1.2mA at VCC1 ≥ 2.7V for robust logic-level compatibility |
| MR Input | Active-low with 50kΩ internal pullup to VCC1; accepts TTL/CMOS levels; 1µs minimum pulse width required |
Pinout & Package
MAX6717UKSDD3 uses a 5-pin SOT23-5 package (2.9mm × 1.6mm × 1.1mm), surface-mount, lead-free compatible. Pin 1 is marked with dot; pin numbering follows standard SOT23 convention (counterclockwise from mark).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Open-drain active-low reset output; asserted when VCC1 < 4.625V or VCC2 < 3.075V; requires external pullup resistor |
| 2 | GND | Analog/digital ground reference; must be connected to system ground plane for accurate threshold sensing |
| 3 | MR | Active-low manual reset input; internally pulled up to VCC1; pulling low forces reset for full timeout period |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V range); powers internal comparator for VCC2 monitoring and sets RST2 reference if present (not used in MAX6717) |
| 5 | VCC1 | Primary supply input (1.8V–5.0V range); powers device core, sets RST output reference, and enables VCC1 monitoring |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous supervision of VCC1 and VCC2 with separate thresholds avoids single-point failure in multirail systems |
| Guaranteed reset validity down to 0.8V | Ensures correct RST logic state even during deep brownout-critical for fail-safe shutdown in industrial controllers |
| Immunity to short VCC transients | Rejects glitches ≤20µs (at 100mV overdrive), preventing spurious resets in noisy power environments |
| Low 14µA supply current | Minimizes quiescent power draw in always-on monitoring circuits-enables >10-year battery life in coin-cell applications |
| Factory-trimmed precision thresholds | Eliminates external resistor networks; reduces BOM count and layout area vs. adjustable supervisors |
Applications
| Industrial PLC Controller | Network Router Power Management |
|---|---|
Use Scenario: Monitors 5V main logic rail and 3.3V I/O rail in programmable logic controller during cold start and brownout conditions. IC Role / Device Role / Timing Role: Dual-supply supervisor asserting active-low reset to ARM Cortex-M7 MCU until both rails stabilize above 4.625V and 3.075V for ≥210ms. Use Value: Prevents firmware execution on marginal supplies-avoids corrupted register writes and EEPROM corruption during power transitions. |
Use Scenario: Ensures clean boot sequence in multi-core network router where 5V PoE-derived rail and 3.3V PHY interface rail must both meet spec before switch ASIC initialization. IC Role / Device Role / Timing Role: Provides synchronized reset hold-off using factory-set 210ms timeout, eliminating need for discrete RC timing networks. Use Value: Reduces PCB footprint by 3.2mm² vs. dual discrete supervisors; eliminates calibration drift over temperature. |
| Medical Diagnostic Handheld | Smart Energy Meter |
Use Scenario: Supervises lithium-ion battery–derived 3.3V system rail and 1.8V sensor interface rail in portable ultrasound device with strict safety-critical boot requirements. IC Role / Device Role / Timing Role: Asserts RST during battery voltage sag below 3.075V (VCC2) or regulator dropout below 4.625V (VCC1), holding µP in reset for full 210ms timeout. Use Value: Meets IEC 62304 Class C software safety requirement for deterministic power-fail response without firmware dependency. |
Use Scenario: Monitors isolated DC-DC outputs (5V meter core, 3.3V communication module) in ANSI C12.20-certified electricity meter operating in wide ambient temperature range. IC Role / Device Role / Timing Role: Dual-threshold supervision with -40°C to +85°C operation ensures reset assertion during winter grid brownouts or summer thermal derating. Use Value: Guarantees valid reset down to 0.8V per rail-enables safe shutdown before flash memory write corruption occurs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6715UTLTD3-T | 6-pin SOT23-6; identical VTH1/VTH2 (4.625V/3.075V) and 210ms timeout; adds unused RST2 pin (no secondary reset output enabled) | Requires PCB layout change due to extra pin; no functional advantage over MAX6717UKSDD3 in dual-supply-only use cases | Select MAX6717UKSDD3 for minimal footprint; choose MAX6715UTLTD3-T only if future expansion to triple-monitoring is planned |
| TPS3808G33DBVR | Single-supply supervisor (3.3V threshold only); 200ms timeout; push-pull RST; 2.5µA IQ; same SOT23-5 package | Lacks VCC2 monitoring capability-requires second IC to supervise 5V rail, increasing cost and board area | Use only when supervising one rail; MAX6717UKSDD3 is superior for true dual-rail coordination with single-device simplicity |
Compared with MAX6715UTLTD3-T and TPS3808G33DBVR, MAX6717UKSDD3 uniquely delivers verified dual-rail supervision in the smallest possible SOT23-5 footprint without sacrificing threshold accuracy, timeout stability, or industrial temperature support-making it optimal for space- and reliability-constrained multivoltage designs.
Availability
MAX6717UKSDD3 is available at Aetrix Electronics and suitable for industrial PLC controllers, network router power management, medical diagnostic handhelds, smart energy meters, and telecom base station monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6717UKSDD3 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 semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The MAX6715–MAX6729 family was designed specifically for ultra-low-voltage, multirail microprocessor supervision in space-constrained embedded systems-emphasizing precision threshold matching, guaranteed low-voltage operation, and minimal quiescent current.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6717UKSDD3?
The MAX6717UKSDD3 has factory-trimmed reset thresholds of 4.625V (typ) for VCC1 and 3.075V (typ) for VCC2, with tolerances of ±0.125V and ±0.075V respectively at +25°C. These values are fixed by the "SD" suffix per Maxim's Reset Voltage Threshold Suffix Guide and are confirmed in the Electrical Characteristics table of the official datasheet.
Does the MAX6717UKSDD3 support watchdog timer or power-fail monitoring functionality?
No, the MAX6717UKSDD3 does not include watchdog timer (WDI), power-fail input (PFI), or power-fail output (PFO) features. The Selector Guide explicitly lists "-" under those columns for MAX6717, and the Pin Description confirms only RST, GND, MR, VCC2, and VCC1 pins are implemented-no WDI, PFI, or PFO connections exist on this variant.
What is the reset timeout period for the MAX6717UKSDD3, and is it adjustable?
The MAX6717UKSDD3 has a fixed minimum reset timeout period of 210ms, denoted by the "D3" suffix in its part number. This value is factory-programmed and not adjustable via external components or configuration pins. The timeout begins after both VCC1 and VCC2 rise above their respective thresholds and holds RST low for the full duration.
Can the MAX6717UKSDD3 operate with VCC1 = 2.5V and VCC2 = 1.8V?
Yes, the MAX6717UKSDD3 supports VCC1 from 1.8V to 5.0V and VCC2 from 0.9V to 3.3V per the General Description. At VCC1 = 2.5V and VCC2 = 1.8V, it maintains guaranteed reset validity (RST logic state correctness) down to 0.8V on either rail and draws only ~10µA total supply current-verified in the Electrical Characteristics and Typical Operating Characteristics sections.
What package type and pin count does the MAX6717UKSDD3 use?
The MAX6717UKSDD3 uses a 5-pin SOT23-5 package (2.9mm × 1.6mm × 1.1mm body size), as confirmed in the Ordering Information table and Pin Configurations section. Pin 1 is the RST output; pin 2 is GND; pin 3 is MR; pin 4 is VCC2; and pin 5 is VCC1-no alternate packages or pinouts are available for this specific part number.
MAX6717UKSDD3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 0.788V, 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
MAX6717UKSDD3 FAQ
1.How can I place an order for MAX6717UKSDD3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6717UKSDD3 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 MAX6717UKSDD3 reliable?
The price and inventory of MAX6717UKSDD3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6717UKSDD3 is usually 5 days.
3.What payment methods are accepted for MAX6717UKSDD3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6717UKSDD3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6717UKSDD3?
MAX6717UKSDD3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6717UKSDD3 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 MAX6717UKSDD3?
For technical support, including MAX6717UKSDD3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6717UKSDD3 requirements.
6.How does Aetrix verify that MAX6717UKSDD3 is sourced from the original manufacturer or authorized distributors?
All MAX6717UKSDD3 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 MAX6717UKSDD3 meets industry standards.
7.What is the process for return or replacement of MAX6717UKSDD3?
All MAX6717UKSDD3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6717UKSDD3, 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 MAX6717UKSDD3 part is unused and in its original packaging.
Return procedure for MAX6717UKSDD3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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