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Analog Devices Inc./Maxim Integrated MAX6717AUKLTD3+
- Part No.:
- MAX6717AUKLTD3+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6717AUKLTD3+.pdf
- Description:
- MAX6717 DUAL/TRIPLE, ULTRA-LOW-V
- Quantity:
- Payment:
- Shipping:
Inventory:211
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Product details
Overview
The MAX6717AUKLTD3+ 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 2.925V (VTH1) and 1.388V (VTH2), 210ms minimum reset timeout, and guaranteed reset validity down to VCC1 or VCC2 = 0.8V - used for reliable power-up sequencing and brownout protection in battery-powered embedded systems.
For engineers reviewing the MAX6717AUKLTD3+ datasheet, MAX6717AUKLTD3+ pinout, MAX6717AUKLTD3+ application, or MAX6717AUKLTD3+ equivalent, key selection criteria include dual-supply threshold accuracy (±1.5% over temperature), ultra-low 14µA typical supply current at 3.6V, open-drain RST output referenced to VCC1, manual-reset input with internal 50kΩ pullup, and immunity to sub-20µs VCC transients.
Technical Context
This device implements two independent voltage comparators with hysteresis (0.5% of VTH), a precision 210ms reset timeout timer, and a dedicated manual-reset input with glitch rejection (100ns). It operates across -40°C to +125°C and guarantees correct reset logic state even when either VCC1 or VCC2 drops to 0.8V - enabling robust operation in automotive and industrial environments where rail collapse is gradual.
No watchdog, power-fail, or RSTIN inputs are present on the MAX6717AUKLTD3+ variant; it supports only dual-supply monitoring with active-low open-drain RST output, GND, MR, VCC2, and VCC1 pins - matching the MAX6717A/UK series pinout and functional scope defined in the Selector Guide.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold (VTH1) | 2.925V (typ), ±1.5% over -40°C to +125°C - sets precise brownout detection point for primary supply (e.g., 3.3V I/O rail) |
| VCC2 Threshold (VTH2) | 1.388V (typ), ±1.5% over -40°C to +125°C - enables monitoring of low-voltage core rails (e.g., 1.2V/1.35V processors) |
| Reset Timeout Period | 210ms (min) - ensures µP completes full boot sequence before release from reset |
| Supply Current (ICC) | 14µA (typ) at 3.6V - minimizes quiescent drain in always-on battery-backed systems |
| Reset Output Type | Active-low open-drain RST - requires external pullup; compatible with bidirectional µP reset pins without contention |
| Operating Temperature | -40°C to +125°C - qualified for under-hood automotive and industrial control applications |
| VCC Validity Limit | Reset remains valid down to VCC1 or VCC2 = 0.8V - supports graceful shutdown during deep brownout |
Pinout & Package
Package: 5-pin SOT23 (1.6mm × 1.6mm × 0.95mm, JEDEC MO-178AA), surface-mount, lead-free/RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (RST) | Active-low reset output | Open-drain output referenced to VCC1; asserts low on VCC1/VCC2 undervoltage or MR activation; requires external pullup resistor |
| 2 (GND) | Ground reference | Common return path for all internal comparators, timer, and logic; must be low-impedance connection to system ground plane |
| 3 (MR) | Manual-reset input | Active-low input with internal 50kΩ pullup to VCC1; accepts CMOS logic levels; debounced internally (100ns glitch rejection) |
| 4 (VCC2) | Secondary supply input | Powers internal circuitry when VCC2 > VCC1; input for secondary voltage monitor comparator (VTH2 = 1.388V) |
| 5 (VCC1) | Primary supply input | Powers internal circuitry when VCC1 > VCC2; input for primary voltage monitor comparator (VTH1 = 2.925V) |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous supervision of VCC1 (2.925V) and VCC2 (1.388V) with separate comparators and hysteresis - eliminates need for discrete supervisor ICs |
| Guaranteed reset validity at low VCC | Functional reset assertion and deassertion guaranteed down to VCC1 or VCC2 = 0.8V - critical for fail-safe behavior during slow rail collapse |
| Ultra-low quiescent current | 14µA typical ICC at 3.6V - extends battery life in portable medical, sensor, and IoT edge devices |
| Immunity to short VCC transients | Rejects negative-going VCC glitches <20µs (at 100mV overdrive) - prevents spurious resets in electrically noisy environments |
| Integrated manual-reset interface | MR pin with internal 50kΩ pullup and 100ns glitch rejection - enables pushbutton reset without external components or debounce circuitry |
Applications
| Battery-Powered IoT Node | Automotive Body Control Module |
|---|---|
Use Scenario: A wireless sensor node powered by a single Li-ion cell (3.0–4.2V) and regulated 1.2V core supply must maintain accurate reset behavior across full discharge cycle. IC Role / Device Role / Timing Role: MAX6717AUKLTD3+ monitors both 3.3V I/O rail (VCC1) and 1.2V core rail (VCC2), asserting reset if either falls below threshold during brownout or cold start. Use Value: Guaranteed reset validity down to 0.8V allows clean shutdown before system instability, while 14µA ICC preserves battery runtime. | Use Scenario: Under-hood ECU with 5V microcontroller and 3.3V CAN transceiver supply, exposed to wide temperature (-40°C to +125°C) and load-dump transients. IC Role / Device Role / Timing Role: Supervises dual rails to ensure µP initializes only after both supplies stabilize; open-drain RST interfaces safely with bidirectional reset pin. Use Value: -40°C to +125°C rating and 210ms timeout prevent premature release during thermal stress or slow power ramp-up. |
| Industrial PLC I/O Module | Medical Portable Monitor |
Use Scenario: DIN-rail mounted I/O module with isolated 24V DC input converted to 5V and 3.3V rails, requiring fail-safe startup and brownout recovery. IC Role / Device Role / Timing Role: Monitors primary 5V logic rail and secondary 3.3V communication rail; MR input enables field-service reset via front-panel button. Use Value: Internal MR pullup eliminates external resistor; 210ms timeout accommodates slow-starting isolated DC/DC converters. | Use Scenario: Handheld vital-sign monitor using coin-cell battery and low-power ARM Cortex-M0+, where every µA affects operational time. IC Role / Device Role / Timing Role: Dual-supply supervisor ensures µP remains held in reset until both 3.0V display driver and 1.8V sensor interface rails reach regulation. Use Value: 14µA typical ICC directly extends usable battery life; open-drain RST avoids contention with shared reset bus. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6316LUK31D3+ | Single-supply (VCC only), 3.08V threshold, same 210ms timeout, 5-pin SOT23, but lacks VCC2 monitoring | Only suitable where secondary rail supervision is unnecessary - e.g., simple µP with single regulated supply | Select only if system uses one critical supply; MAX6717AUKLTD3+ provides essential dual-rail coverage |
| TPS3808G33DBVR | Single-supply (VCC), 3.3V threshold, adjustable timeout (200ms–3s), 5-pin SOT23, higher ICC (22µA typ) | No VCC2 input; requires external resistor network for timeout adjustment; not rated for 125°C operation | Use where timeout flexibility outweighs dual-supply capability and extended temperature range |
Compared with MAX6316LUK31D3+ and TPS3808G33DBVR, the MAX6717AUKLTD3+ uniquely delivers factory-trimmed dual-threshold supervision (2.925V/1.388V) with guaranteed operation up to +125°C and lowest ICC (14µA), making it optimal for space-constrained, battery-sensitive, and thermally demanding dual-rail systems.
Availability
MAX6717AUKLTD3+ is available at Aetrix Electronics and suitable for battery-powered IoT nodes, automotive body control modules, industrial PLC I/O modules, and portable medical monitors requiring stable component supply across extended temperature ranges and low-power operation.
Supply support for MAX6717AUKLTD3+ 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, mixed-signal, and power management ICs for high-reliability industrial, automotive, and communications applications.
The MAX6715A–MAX6729A family delivers ultra-low-voltage, dual/triple-supply supervisory circuits in miniature SOT23 packages - engineered specifically for power integrity assurance in space-constrained, wide-temperature, and low-quiescent-current embedded systems.
FAQ
What is the exact reset threshold voltage for VCC1 on the MAX6717AUKLTD3+?
The MAX6717AUKLTD3+ has a factory-trimmed VCC1 reset threshold (VTH1) of 2.925V (typical), with ±1.5% tolerance over -40°C to +125°C. This value is fixed by the "T" suffix in the part number per Maxim's Reset Voltage Threshold Suffix Guide and applies specifically to the MAX6717AUKLTD3+ variant - not adjustable or user-configurable.
Does the MAX6717AUKLTD3+ support watchdog functionality?
No, the MAX6717AUKLTD3+ does not include watchdog functionality. It belongs to the MAX6717A/UK series, which is designated for dual-supply supervision only - confirmed by absence of WDI pin in its 5-pin SOT23 pinout and omission from the Watchdog Input section of the datasheet. For watchdog capability, consider MAX6721AUKLTD3+ or similar variants.
What is the function of Pin 3 (MR) on the MAX6717AUKLTD3+?
Pin 3 (MR) is the active-low manual-reset input on the MAX6717AUKLTD3+. It features an internal 50kΩ pullup to VCC1 and asserts the RST output low when pulled to GND. Reset remains active for the full 210ms timeout period after MR returns high. The pin rejects glitches shorter than 100ns and requires no external components for basic pushbutton implementation.
Can the MAX6717AUKLTD3+ monitor a third supply voltage?
No, the MAX6717AUKLTD3+ cannot monitor a third supply. It is a dual-supply supervisor with dedicated VCC1 and VCC2 inputs only. Third-supply monitoring (via RSTIN) is available only on MAX6719A/MAX6720A and MAX6723A–MAX6727A variants - confirmed by absence of RSTIN pin in the MAX6717AUKLTD3+ pin configuration table and lack of RSTIN-related electrical characteristics in its datasheet section.
What package type and dimensions does the MAX6717AUKLTD3+ use?
The MAX6717AUKLTD3+ uses a 5-pin SOT23 package (JEDEC MO-178AA), measuring 1.6mm × 1.6mm × 0.95mm. It is surface-mount, lead-free/RoHS-compliant, and identical in footprint to other MAX6717A/UK-series devices - verified by the Ordering Information table and Pin Configurations section of the official Maxim datasheet.
MAX6717AUKLTD3+ 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:
- 3.075V, 4.625V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6717AUKLTD3+ FAQ
1.How can I place an order for MAX6717AUKLTD3+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6717AUKLTD3+ 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 MAX6717AUKLTD3+ reliable?
The price and inventory of MAX6717AUKLTD3+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6717AUKLTD3+ is usually 5 days.
3.What payment methods are accepted for MAX6717AUKLTD3+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6717AUKLTD3+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6717AUKLTD3+?
MAX6717AUKLTD3+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6717AUKLTD3+ 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 MAX6717AUKLTD3+?
For technical support, including MAX6717AUKLTD3+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6717AUKLTD3+ requirements.
6.How does Aetrix verify that MAX6717AUKLTD3+ is sourced from the original manufacturer or authorized distributors?
All MAX6717AUKLTD3+ 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 MAX6717AUKLTD3+ meets industry standards.
7.What is the process for return or replacement of MAX6717AUKLTD3+?
All MAX6717AUKLTD3+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6717AUKLTD3+, 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 MAX6717AUKLTD3+ part is unused and in its original packaging.
Return procedure for MAX6717AUKLTD3+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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