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Analog Devices Inc./Maxim Integrated MAX6717UKSYD3+
- Part No.:
- MAX6717UKSYD3+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6717UKSYD3+.pdf
- Description:
- MAX6717 DUAL/TRIPLE, ULTRA-LOW-V
- Quantity:
- Payment:
- Shipping:
Inventory:358
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Product details
Overview
MAX6717UKSYD3+ 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, push-pull active-low RST output, manual reset input, and guaranteed reset validity down to VCC1 or VCC2 = 0.8V - used in multivoltage telecom and portable equipment for reliable power-up sequencing and brownout protection.
For engineers reviewing the MAX6717UKSYD3+ datasheet, MAX6717UKSYD3+ pinout, MAX6717UKSYD3+ application, or MAX6717UKSYD3+ equivalent, key selection factors include dual-supply threshold accuracy (±1.5% over temperature), ultra-low 14µA supply current at 3.6V, immunity to sub-20µs VCC transients, and compatibility with 1.8V/3.3V core-I/O rail systems requiring deterministic reset assertion timing.
Technical Context
The MAX6717UKSYD3+ integrates two independent voltage comparators with factory-trimmed thresholds (VTH1 = 4.625V, VTH2 = 3.075V), a 210ms minimum reset timeout timer, and a push-pull RST output referenced to VCC1. It asserts reset when either supply falls below its threshold and holds reset for the full timeout after recovery.
It features an internal 50kΩ pullup on MR, supports manual reset pulse widths ≥1µs, guarantees valid reset logic state down to VCC1/VCC2 = 0.8V, and draws only 14µA typical supply current at 3.6V - enabling use in battery-critical portable designs without compromising supervision reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.625V (factory-trimmed, ±1.5% over -40°C to +85°C) - sets precise brownout detection for 5V or 4.8V primary rails |
| VCC2 Threshold | 3.075V (factory-trimmed, ±1.5% over -40°C to +85°C) - enables accurate monitoring of 3.3V secondary I/O supplies |
| Reset Timeout | 210ms (minimum) - ensures sufficient hold time for slow-starting processors and peripheral initialization |
| Supply Current | 14µA (typical at 3.6V) - minimizes quiescent drain in always-on battery-backed systems |
| Reset Output Type | Push-pull active-low RST - eliminates need for external pullup; drives directly into µP reset pin with VOH ≥ 0.8×VCC1 |
| Valid Reset Voltage | Down to VCC1 or VCC2 = 0.8V - guarantees correct reset assertion during deep brownout conditions |
| MR Input | Active-low with 50kΩ internal pullup to VCC1 - supports direct switch-to-GND interface without external components |
Pinout & Package
MAX6717UKSYD3+ uses a 5-pin SOT23-5 package (2.9mm × 1.6mm × 1.1mm), optimized for space-constrained PCB layouts in portable and telecom modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1; sinks up to 3.2mA at VCC1 ≥ 4.5V; asserts when VCC1 < 4.625V or VCC2 < 3.075V |
| 2 | GND | Ground reference for all internal comparators, timers, and output drivers |
| 3 | MR | Active-low manual reset input with internal 50kΩ pullup to VCC1; reset remains asserted for full 210ms timeout after MR release |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V range); powers internal VCC2 comparator and sets VTH2 = 3.075V |
| 5 | VCC1 | Primary supply input (1.8V–5.0V range); powers device core, sets VTH1 = 4.625V, and references RST output |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous supervision of VCC1 (4.625V) and VCC2 (3.075V) with separate comparators - eliminates need for discrete supervisors or resistor dividers |
| Guaranteed reset validity at low VCC | Functional reset assertion guaranteed even when VCC1 or VCC2 drops to 0.8V - critical for fail-safe operation during severe brownouts |
| Ultra-low quiescent current | 14µA typical at 3.6V - extends battery life in always-on IoT sensors and portable medical devices |
| Transient-immune supervision | Immunity to VCC glitches <20µs duration (at 100mV overdrive) - prevents spurious resets in noisy power environments |
| Integrated manual reset | MR pin with internal 50kΩ pullup - enables momentary switch interface without external components or debounce circuitry |
Applications
| Telecom Line Cards | Industrial PLC Modules |
|---|---|
Use Scenario: Monitoring dual 4.8V/3.3V rails powering FPGA configuration and communication PHYs in carrier-grade line cards. IC Role / Device Role / Timing Role: Dual-supply supervisor ensuring synchronized reset assertion across FPGA and transceiver during AC brownout or hot-swap events. Use Value: Prevents partial configuration or protocol lockup by enforcing 210ms minimum reset hold time while maintaining valid reset logic down to 0.8V on either rail. |
Use Scenario: Supervising 5V system controller and 3.3V I/O expander in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Fault-detection circuit asserting reset if either supply deviates beyond ±3% tolerance, with manual override via front-panel button. Use Value: Enables deterministic recovery from undervoltage faults without firmware intervention, leveraging MR's 1µs minimum pulse width and internal pullup. |
| Portable Medical Monitors | Set-Top Box Power Management |
Use Scenario: Managing power-up sequencing of 3.3V application processor and 1.8V display driver in battery-powered ECG monitors. IC Role / Device Role / Timing Role: Low-current (14µA) dual-rail supervisor ensuring clean boot before RF transmission begins. Use Value: Extends single-cell Li-ion runtime by >12 hours/year versus higher-quiescent alternatives, while guaranteeing reset integrity during battery sag. |
Use Scenario: Coordinating reset of 5V main SoC and 3.3V HDMI controller during AC power cycling in consumer set-top boxes. IC Role / Device Role / Timing Role: Dual-threshold supervisor with 4.625V/3.075V trip points matching ATX-derived 5V/3.3V rail tolerances. Use Value: Eliminates external resistor networks and reduces BOM count by integrating precise thresholds and 210ms timeout in 5-pin SOT23. |
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 | Same 5-pin SOT23 package, identical 4.625V/3.075V thresholds and 210ms timeout, but open-drain RST output requiring external pullup | Suitable where µP reset pin requires open-drain interface or level translation; not compatible with direct push-pull drive | Select MAX6715UTLTD3+T only if system design mandates open-drain reset signaling or shares pullup with other peripherals |
| TPS3808G33DBVR | Single-supply supervisor (3.3V threshold only), 200ms timeout, 1.8µA supply current, SOT23-5 package - lacks dual-monitoring capability | Applicable only for single-rail systems; cannot replace dual-threshold function without adding second IC | Choose TPS3808G33DBVR only for cost-sensitive single-supply applications where VCC2 monitoring is unnecessary |
Compared with MAX6717UKSYD3+, MAX6715UTLTD3+T provides identical supervision functionality but requires external pullup due to open-drain RST, while TPS3808G33DBVR offers lower quiescent current but omits VCC2 monitoring - making MAX6717UKSYD3+ the only solution delivering integrated dual-rail supervision with push-pull drive in 5-pin SOT23.
Availability
MAX6717UKSYD3+ is available at Aetrix Electronics and suitable for telecom line cards, industrial PLC modules, and portable medical monitors requiring stable component supply, long-term lifecycle support, and guaranteed factory-trimmed voltage thresholds.
Supply support for MAX6717UKSYD3+ 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 management, sensing, and interface applications in industrial, automotive, and communications markets.
The MAX6715–MAX6729 family delivers ultra-low-voltage dual/triple supervisory circuits targeting space- and power-constrained multirail systems where deterministic reset timing and brownout resilience are critical.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6717UKSYD3+?
The MAX6717UKSYD3+ has factory-trimmed reset thresholds of 4.625V for VCC1 and 3.075V for VCC2, with ±1.5% tolerance over the full -40°C to +85°C operating temperature range. These values are fixed by the "SY" suffix per Maxim's Reset Voltage Threshold Suffix Guide and do not require external resistor programming. The MAX6717UKSYD3+ does not support adjustable RSTIN monitoring - it is a dual-supply-only variant.
Does the MAX6717UKSYD3+ support watchdog or power-fail functionality?
No, the MAX6717UKSYD3+ does not include watchdog timer or power-fail input/output features. Per Maxim's Selector Guide, it belongs to the MAX6717 series - which provides only dual-voltage monitoring, manual reset input, and push-pull RST output. Watchdog capability is exclusive to MAX6721–MAX6729 variants, and power-fail functions appear only in MAX6728/MAX6729. The MAX6717UKSYD3+ is optimized for simplicity and minimal footprint in basic dual-rail supervision.
What is the reset timeout period of the MAX6717UKSYD3+, and is it adjustable?
The MAX6717UKSYD3+ has a fixed minimum reset timeout period of 210ms, indicated by the "D3" suffix in its part number per Maxim's Reset Timeout Period Suffix Guide. This timeout is factory-programmed and not adjustable via external components or pins. The timer begins counting upon reset assertion and holds RST low for the full 210ms after all monitored supplies exceed their thresholds or after MR is released.
Can the MAX6717UKSYD3+ operate with VCC1 = 3.3V and VCC2 = 1.8V?
Yes, the MAX6717UKSYD3+ supports VCC1 from 1.8V to 5.0V and VCC2 from 0.9V to 3.3V, so 3.3V/1.8V operation is fully within specification. However, its factory-set thresholds (4.625V/3.075V) mean it will assert reset if VCC1 falls below 4.625V or VCC2 falls below 3.075V - making it unsuitable for direct supervision of 3.3V/1.8V rails. It is intended for higher-voltage dual-rail systems like 4.8V/3.3V or 5.0V/3.3V. For 3.3V/1.8V, select a different suffix (e.g., "TL"/"SL").
What package type and pin count does the MAX6717UKSYD3+ use?
The MAX6717UKSYD3+ uses a 5-pin SOT23-5 surface-mount package (2.9mm × 1.6mm × 1.1mm body size) with gull-wing leads. This is confirmed in Maxim's Ordering Information table, which lists "MAX6717UK_ _D_ -T" as "5 SOT23-5". The "UK" prefix explicitly denotes the 5-pin variant, distinguishing it from 6-pin (UT) and 8-pin (KA) versions in the MAX6715–MAX6729 family.
MAX6717UKSYD3+ 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:
- Power Supply Monitor
- 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+ FAQ
1.How can I place an order for MAX6717UKSYD3+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6717UKSYD3+ 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+ reliable?
The price and inventory of MAX6717UKSYD3+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6717UKSYD3+ is usually 5 days.
3.What payment methods are accepted for MAX6717UKSYD3+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6717UKSYD3+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6717UKSYD3+?
MAX6717UKSYD3+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6717UKSYD3+ 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+?
For technical support, including MAX6717UKSYD3+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6717UKSYD3+ requirements.
6.How does Aetrix verify that MAX6717UKSYD3+ is sourced from the original manufacturer or authorized distributors?
All MAX6717UKSYD3+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX6717UKSYD3+?
All MAX6717UKSYD3+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6717UKSYD3+, 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+ part is unused and in its original packaging.
Return procedure for MAX6717UKSYD3+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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