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Analog Devices Inc./Maxim Integrated MAX6717UKSFD2+
- Part No.:
- MAX6717UKSFD2+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6717UKSFD2+.pdf
- Description:
- MAX6717 DUAL/TRIPLE, ULTRA-LOW-V
- Quantity:
- Payment:
- Shipping:
Inventory:46,995
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Product details
Overview
MAX6717UKSFD2+ from Maxim Integrated is a dual-voltage microprocessor supervisory circuit in 5-pin SOT23 package, monitoring VCC1 (1.8V–5.0V) and VCC2 (0.9V–3.3V) with factory-trimmed reset thresholds (VTH1 = 4.625V, VTH2 = 3.075V), 210ms minimum reset timeout, and open-drain active-low RST output. It ensures reliable system reset during power-up, brownout, or manual intervention in space-constrained embedded systems.
For engineers reviewing the MAX6717UKSFD2+ datasheet, MAX6717UKSFD2+ pinout, MAX6717UKSFD2+ application, or MAX6717UKSFD2+ equivalent, key selection criteria include dual-supply threshold accuracy (±1.5% over temperature), guaranteed reset validity down to VCC1/VCC2 = 0.8V, low 14µA typical supply current at 3.6V, and immunity to sub-20µs VCC transients.
Technical Context
The MAX6717UKSFD2+ integrates two independent voltage comparators with 20ppm/°C tempco and 0.5% hysteresis, feeding a digital timeout counter that asserts RST for ≥210ms after all monitored supplies recover. Its open-drain RST output requires an external pullup and remains valid even when VCC1 or VCC2 drops to 0.8V - critical for fail-safe operation in battery-backed or low-voltage systems.
Unlike triple-monitor variants, this device omits RSTIN, WDI, PFI/PFO, and RST2 pins - confirming its dedicated dual-supply role. The SOT23-5 package places GND (Pin 2), MR (Pin 3), VCC2 (Pin 4), and VCC1 (Pin 6) with RST (Pin 1) as sole output, enabling minimal footprint supervision without auxiliary functions.
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 logic rails |
| VCC2 Threshold | 3.075V (factory-trimmed, ±1.5%) - matches common 3.3V I/O supply with margin for droop |
| Reset Timeout | 210ms (minimum) - ensures µP completes power-on initialization before release |
| Supply Current | 14µA (typ at 3.6V) - enables multi-year battery life in portable equipment |
| Operating Temp | -40°C to +85°C - qualified for industrial and telecom environments |
| Reset Validity | Down to VCC1 or VCC2 = 0.8V - guarantees correct RST state during deep brownout |
| VCC Transient Immunity | Resists <20µs negative glitches - prevents spurious resets from switching noise |
Pinout & Package
MAX6717UKSFD2+ uses a 5-pin SOT23-5 package (2.9mm × 1.6mm × 1.1mm) with gull-wing leads, optimized for high-density PCB layouts. Pin 1 is RST (active-low open-drain), Pin 2 is GND, Pin 3 is MR (manual reset input, internal 50kΩ pullup to VCC1), Pin 4 is VCC2 (secondary supply input), and Pin 6 is VCC1 (primary supply input).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (RST) | Active-low reset output | Open-drain driver requiring external pullup; asserts low on VCC1/VCC2 fault or MR activation |
| Pin 2 (GND) | Ground reference | Common return for all internal comparators, timeout logic, and MR pullup |
| Pin 3 (MR) | Manual reset input | Active-low signal with 1µs minimum pulse width; resets system on demand via pushbutton or logic |
| Pin 4 (VCC2) | Secondary supply input | Powers internal circuitry when > VCC1; monitors 0.9V–3.3V rails with 3.075V threshold |
| Pin 6 (VCC1) | Primary supply input | Main power source (1.8V–5.0V); powers device and sets 4.625V reset threshold for core logic rail |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous VCC1 and VCC2 supervision eliminates need for two discrete supervisors |
| Factory-trimmed precision thresholds | 4.625V/3.075V thresholds with ±1.5% tolerance reduce BOM count and calibration effort |
| Guaranteed reset validity to 0.8V | Ensures deterministic RST behavior during severe brownout - no undefined states |
| Low 14µA supply current | Minimizes quiescent load on battery or energy-harvesting sources |
| Immunity to short VCC transients | Rejects <20µs glitches - avoids false resets in noisy switch-mode power supply environments |
Applications
| Industrial PLC I/O Modules | Point-of-Sale Terminal Power Management |
|---|---|
Use Scenario: Monitoring 24V DC-to-5V/3.3V converted rails in programmable logic controller backplanes where undervoltage must trigger safe I/O shutdown. IC Role / Device Role / Timing Role: Dual-supply supervisor asserting RST to halt CPU execution and disable output drivers during rail collapse. Use Value: Prevents corrupted data writes to EEPROM and unsafe actuator control during brownout - enabled by guaranteed 0.8V reset validity. | Use Scenario: Ensuring clean boot of ARM-based POS terminals powered by Li-ion batteries with aging-induced voltage sag on 3.3V and 5V rails. IC Role / Device Role / Timing Role: Supervising battery-derived VCC1 (5V) and LDO-regulated VCC2 (3.3V) to enforce 210ms reset hold time for secure bootloader execution. Use Value: Eliminates boot failures caused by marginal supply recovery - validated by 210ms min timeout and ±1.5% threshold accuracy. |
| Medical Infusion Pump Logic Control | Network Router Line Card Supervision |
Use Scenario: Safeguarding microcontroller operation in battery-backed infusion pumps where dual-rail failure could compromise dose delivery accuracy. IC Role / Device Role / Timing Role: Monitoring main 3.3V MCU rail and isolated 5V analog front-end supply to assert RST within 20µs of threshold breach. Use Value: Meets IEC 62304 Class C safety requirements via deterministic reset response and 14µA ultra-low current draw. | Use Scenario: Supervising primary 12V-to-3.3V and secondary 12V-to-5V conversion stages on high-port-count Ethernet line cards subject to thermal derating. IC Role / Device Role / Timing Role: Detecting simultaneous droop on both rails to initiate graceful packet buffer flush before full reset. Use Value: Reduces packet loss during thermal stress events - enabled by independent comparator architecture and 20ppm/°C tempco. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6716UTLTD3+ | Push-pull RST output (vs. open-drain), same thresholds/timing | Requires no external pullup; incompatible with bidirectional µP reset pins without series resistor | Select when driving CMOS inputs directly or when board layout prohibits pullup placement |
| TPS3808G33DBVR | Single-supply monitor (3.3V only), 200ms timeout, 3.08V threshold | Lacks VCC2 monitoring - needs second IC for dual-rail systems | Choose only if supervising one rail; MAX6717UKSFD2+ reduces component count in true dual-rail designs |
Compared with MAX6716UTLTD3+, MAX6717UKSFD2+ saves board space by eliminating the pullup resistor but requires careful I/O compatibility checking; versus TPS3808G33DBVR, it delivers true dual-rail supervision in a single chip - reducing BOM cost and improving system-level reliability.
Availability
MAX6717UKSFD2+ is available at Aetrix Electronics and suitable for industrial PLCs, medical infusion pumps, point-of-sale terminals, and network router line cards requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6717UKSFD2+ 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 industrial, automotive, and communications markets, with expertise in power management and reliability-critical supervision.
The MAX6715–MAX6729 family delivers ultra-low-voltage dual/triple supervisory circuits targeting space-constrained embedded systems needing guaranteed reset behavior under brownout conditions.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6717UKSFD2+?
The MAX6717UKSFD2+ 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 range. These values are encoded in the "SF" suffix per Maxim's Reset Voltage Threshold Suffix Guide and are verified in the Electrical Characteristics table of the official datasheet.
Does the MAX6717UKSFD2+ support watchdog or power-fail functionality?
No, the MAX6717UKSFD2+ does not include watchdog timer (WDI), power-fail input (PFI), or power-fail output (PFO) features. Per the Selector Guide, it is a dual-supply-only variant with manual reset (MR) and open-drain RST output - confirmed by its 5-pin SOT23-5 pinout and absence of WDI/PFI pins in the Pin Description table.
What is the minimum reset timeout period for the MAX6717UKSFD2+ and how is it set?
The MAX6717UKSFD2+ has a minimum reset timeout period of 210ms, set by the "D3" suffix in its part number per Maxim's Reset Timeout Period Suffix Guide. This value is guaranteed across temperature and supply voltage variations, and the timeout begins after all monitored supplies exceed their thresholds or after MR returns high.
Can the MAX6717UKSFD2+ operate reliably when VCC1 drops below 1.0V?
Yes, the MAX6717UKSFD2+ guarantees correct RST output logic state down to VCC1 or VCC2 = 0.8V - explicitly stated in the General Description and Electrical Characteristics sections. This ensures deterministic reset assertion during deep brownout, unlike many supervisors that become undefined below 1.0V.
What package type and dimensions does the MAX6717UKSFD2+ use?
The MAX6717UKSFD2+ uses a 5-pin SOT23-5 package measuring 2.9mm × 1.6mm × 1.1mm with gull-wing leads. This is confirmed in the Ordering Information table (listed as "5 SOT23-5") and Pin Configurations section, distinguishing it from 6-pin or 8-pin variants in the MAX6715–MAX6729 family.
MAX6717UKSFD2+ 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:
- 1.05V, 2.925V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 8.8ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6717UKSFD2+ FAQ
1.How can I place an order for MAX6717UKSFD2+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6717UKSFD2+ 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 MAX6717UKSFD2+ reliable?
The price and inventory of MAX6717UKSFD2+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6717UKSFD2+ is usually 5 days.
3.What payment methods are accepted for MAX6717UKSFD2+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6717UKSFD2+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6717UKSFD2+?
MAX6717UKSFD2+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6717UKSFD2+ 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 MAX6717UKSFD2+?
For technical support, including MAX6717UKSFD2+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6717UKSFD2+ requirements.
6.How does Aetrix verify that MAX6717UKSFD2+ is sourced from the original manufacturer or authorized distributors?
All MAX6717UKSFD2+ 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 MAX6717UKSFD2+ meets industry standards.
7.What is the process for return or replacement of MAX6717UKSFD2+?
All MAX6717UKSFD2+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6717UKSFD2+, 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 MAX6717UKSFD2+ part is unused and in its original packaging.
Return procedure for MAX6717UKSFD2+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6717UKSFD2+ Tags
-
MIC826SYMT-TR
Microchip Technology
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APX803S-31SA-7
Diodes Incorporated
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APX803L20-29SA-7
Diodes Incorporated
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TPS3828-33DBVR
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V6340RSP3B+
EM Microelectronic
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EM6325CXSP5B-2.9+
EM Microelectronic
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MCP120T-300I/TT
Microchip Technology
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MCP130T-315I/TT
Microchip Technology
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MCP120T-475I/TT
Microchip Technology
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MCP111T-300E/TT
Microchip Technology
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MCP120T-315I/TT
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