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Analog Devices Inc./Maxim Integrated MAX6717UKSHD3
- Part No.:
- MAX6717UKSHD3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6717UKSHD3.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,016
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Product details
Overview
MAX6717UKSHD3 from Maxim Integrated is a dual-voltage microprocessor supervisory circuit in 5-pin SOT23 package, monitoring VCC1 (4.625V threshold) and VCC2 (3.075V threshold) with 210ms reset timeout, open-drain active-low RST output, manual reset input, and guaranteed reset validity down to VCC1 or VCC2 = 0.8V - used in multivoltage embedded systems requiring reliable power-up sequencing and brownout protection.
For engineers reviewing the MAX6717UKSHD3 datasheet, MAX6717UKSHD3 pinout, MAX6717UKSHD3 application, or MAX6717UKSHD3 equivalent, this page delivers verified electrical parameters, exact pin functions, confirmed dual-supply monitoring behavior, reset timing accuracy across temperature, and validated alternative options for industrial and telecom power supervision.
Technical Context
The MAX6717UKSHD3 implements two independent voltage comparators with factory-trimmed thresholds (VTH1 = 4.625V, VTH2 = 3.075V), each referenced to internal bandgap references with 20ppm/°C tempco and 0.5% hysteresis. It asserts an open-drain RST output when either supply falls below its threshold and holds reset for a guaranteed minimum 210ms after both supplies recover.
It integrates a 50kΩ internal pullup on MR, supports glitch rejection (100ns), and guarantees correct reset logic state with VCC1 or VCC2 ≥ 0.8V - enabling operation during deep brownout conditions where many supervisors fail. No watchdog or power-fail features are included per Selector Guide.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Reset Threshold | 4.625V (factory-trimmed, ±125mV tolerance), ensures reliable detection of 5V rail collapse before µP malfunction |
| VCC2 Reset Threshold | 3.075V (factory-trimmed, ±75mV tolerance), precisely monitors 3.3V I/O supply integrity |
| Reset Timeout Period | 210ms (min), provides sufficient hold time for full system initialization after power recovery |
| Supply Current | 14µA (typ at 3.6V), enables use in battery-backed or ultra-low-power applications without significant drain |
| Operating Temperature | -40°C to +85°C, qualified for industrial-grade embedded equipment deployment |
| Reset Output Type | Open-drain active-low RST, requires external pullup but allows wired-OR configuration with other reset sources |
| MR Input Logic | Active-low with 50kΩ internal pullup to VCC1, eliminates need for external resistor in most manual reset implementations |
Pinout & Package
MAX6717UKSHD3 is housed in a 5-pin SOT23-5 package (2.9mm × 1.6mm × 1.1mm), surface-mount, lead-free compatible, with thermal pad not connected internally.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Open-drain active-low reset output; sinks current when asserted; requires external pullup to VCC1 or system rail |
| 2 | GND | Analog/digital ground reference; must be low-impedance connection to system ground plane |
| 3 | MR | Active-low manual reset input; internally pulled up to VCC1 (50kΩ); initiates reset when pulled ≤ 0.3×VCC1 |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V range); powers internal comparator for VCC2 monitoring and sets VTH2 = 3.075V |
| 5 | VCC1 | Primary supply input (1.8V–5.0V range); powers device core and sets VTH1 = 4.625V; dominant supply when both present |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneously supervises 5V (VCC1) and 3.3V (VCC2) rails with separate, factory-trimmed thresholds - eliminates need for two discrete supervisors |
| Guaranteed reset validity down to 0.8V | Ensures correct RST logic state even during severe brownout (e.g., VCC1 = 0.9V), preventing spurious release before stable power returns |
| Low quiescent current | 14µA typical supply current at 3.6V enables >10-year battery life in backup-supervised systems |
| Immunity to short VCC transients | Withstands ≤20µs negative-going glitches below threshold without false reset - critical for noisy DC/DC converter outputs |
| Integrated MR pullup | 50kΩ internal pullup to VCC1 removes external component count and simplifies pushbutton reset interface design |
Applications
| Industrial PLC Power Sequencing | Telecom Line Card Supervision |
|---|---|
Use Scenario: Monitoring primary 5V backplane and secondary 3.3V FPGA I/O supply in modular telecom line cards subject to hot-swap events. IC Role / Device Role / Timing Role: Dual-rail supervisor asserting open-drain RST to FPGA and microcontroller upon either rail collapse, holding reset for 210ms to ensure clean reinitialization. Use Value: Prevents partial configuration or metastability in FPGA during undervoltage transitions, eliminating field failures caused by incomplete boot sequences. |
Use Scenario: Ensuring deterministic startup and brownout recovery in carrier-grade Ethernet switches with distributed 5V/3.3V power domains. IC Role / Device Role / Timing Role: Provides synchronized reset assertion across CPU, PHY, and management MCU when either supply dips below spec - no external timing components required. Use Value: Reduces BOM count by replacing discrete voltage detectors + RC timers, while improving timing accuracy over temperature (±0.5% hysteresis). |
| Embedded Medical Sensor Hub | POS Terminal Power Management |
Use Scenario: Supervising battery-backed 3.3V logic rail and 5V USB-charged system rail in portable diagnostic devices with strict uptime requirements. IC Role / Device Role / Timing Role: Monitors both rails continuously; asserts RST if either drops below threshold during battery discharge or charger disconnect events. Use Value: Guarantees safe shutdown before data corruption occurs, leveraging 0.8V valid-reset guarantee to catch deep brownouts missed by higher-threshold supervisors. |
Use Scenario: Managing power integrity in retail point-of-sale terminals using switching regulators for 5V main and 3.3V peripheral rails. IC Role / Device Role / Timing Role: Delivers precise 4.625V/3.075V thresholds aligned with ATX-style 5V±5% and 3.3V±5% specs, with 210ms timeout matching BIOS reset hold requirements. Use Value: Eliminates need for external resistor dividers or trimming, reducing calibration labor and improving production yield. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6316LUK46D3-T | Single-supply (4.63V only), no VCC2 monitoring; 200ms timeout; same SOT23-5 package | Cannot supervise dual rails - suitable only when only primary 5V rail needs monitoring | Select only if secondary supply supervision is unnecessary and board layout must retain identical footprint |
| TPS3808G33DBVR | Single-supply (3.3V threshold), adjustable via external resistor; 200ms timeout; SOT23-6 package | Lacks dual-monitoring capability and fixed VCC2 path; requires external resistor network for threshold setting | Choose when design flexibility for threshold tuning is prioritized over dual-rail integration and pin count minimization |
Compared with MAX6717UKSHD3, MAX6316LUK46D3-T reduces functionality by removing VCC2 monitoring but maintains identical form factor, while TPS3808G33DBVR trades integrated dual-threshold precision for external adjustability and adds one pin - making MAX6717UKSHD3 optimal for space-constrained dual-rail systems requiring factory-trimmed accuracy.
Availability
MAX6717UKSHD3 is available at Aetrix Electronics and suitable for industrial PLCs, telecom line cards, embedded medical sensor hubs, and POS terminals requiring stable component supply with guaranteed long-term manufacturability.
Supply support for MAX6717UKSHD3 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 interface applications, with emphasis on high-reliability industrial and communications solutions.
The MAX6715–MAX6729 family was engineered specifically for compact, multivoltage embedded systems needing robust, low-current supervision without external components - targeting telecom, computing, and industrial control markets.
FAQ
What is the exact reset threshold voltage for VCC1 on MAX6717UKSHD3?
The MAX6717UKSHD3 has a factory-trimmed VCC1 reset threshold of 4.625V (minimum 4.500V, maximum 4.750V) with 0.5% hysteresis. This value is encoded in the "SH" suffix per Maxim's Reset Voltage Threshold Suffix Guide and is verified across -40°C to +85°C operating temperature.
Does MAX6717UKSHD3 support watchdog timer functionality?
No, MAX6717UKSHD3 does not include a watchdog timer. Per the Selector Guide, only MAX6721–MAX6729 variants feature WDI input; MAX6717UKSHD3 is a dual-supply supervisor with MR input and open-drain RST output only - confirmed by pinout (no WDI pin) and functional diagram.
What is the reset timeout period for MAX6717UKSHD3, and is it guaranteed minimum?
The MAX6717UKSHD3 has a reset timeout period of 210ms (minimum), as indicated by the "D3" suffix in its part number. Electrical Characteristics table confirms tRP = 140ms (min), 210ms (typ), 280ms (max) - meaning the device holds RST asserted for ≥140ms under all conditions, with 210ms typical.
Can MAX6717UKSHD3 monitor a 1.8V supply as VCC2?
Yes, MAX6717UKSHD3 supports VCC2 inputs from 0.9V to 3.3V, and its factory-set VCC2 threshold is 3.075V - appropriate for monitoring 3.3V rails. While it can accept 1.8V on VCC2 pin, the 3.075V threshold would not trigger for 1.8V collapse; for 1.8V supervision, a different variant (e.g., "Z" or "Y" suffix) is required.
Is the RST output of MAX6717UKSHD3 push-pull or open-drain?
The RST output of MAX6717UKSHD3 is open-drain active-low, as confirmed by the Selector Guide (MAX6717 row shows "1" under "OPEN-DRAIN RESET") and Pin Description (Pin 1 function states "Active-Low Reset Output, Open-Drain"). It requires an external pullup resistor to VCC1 or another system rail.
MAX6717UKSHD3 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:
- 1.313V, 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
MAX6717UKSHD3 FAQ
1.How can I place an order for MAX6717UKSHD3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6717UKSHD3 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 MAX6717UKSHD3 reliable?
The price and inventory of MAX6717UKSHD3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6717UKSHD3 is usually 5 days.
3.What payment methods are accepted for MAX6717UKSHD3?
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Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6717UKSHD3?
MAX6717UKSHD3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6717UKSHD3 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 MAX6717UKSHD3?
For technical support, including MAX6717UKSHD3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6717UKSHD3 requirements.
6.How does Aetrix verify that MAX6717UKSHD3 is sourced from the original manufacturer or authorized distributors?
All MAX6717UKSHD3 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 MAX6717UKSHD3 meets industry standards.
7.What is the process for return or replacement of MAX6717UKSHD3?
All MAX6717UKSHD3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6717UKSHD3, 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 MAX6717UKSHD3 part is unused and in its original packaging.
Return procedure for MAX6717UKSHD3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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