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Analog Devices Inc./Maxim Integrated MAX6717AUKZWD3+T
- Part No.:
- MAX6717AUKZWD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6717AUKZWD3+T.pdf
- Description:
- IC SUPERVISOR MPU SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,429
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Product details
Overview
MAX6717AUKZWD3+T from Maxim Integrated is a dual-supply ultra-low-voltage microprocessor supervisory circuit in SOT23-6 package, monitoring VCC1 (1.8V–5.0V) and VCC2 (0.9V–3.3V) with factory-trimmed reset thresholds (W-suffix = 1.62V/1.62V), 280ms minimum reset timeout, and open-drain active-low RST output. It guarantees valid reset assertion down to VCC1 or VCC2 = 0.8V and supports manual reset input (MR) and watchdog disable via unconnected WDI - used in telecom power sequencing and industrial embedded controllers.
For engineers reviewing the MAX6717AUKZWD3+T datasheet, MAX6717AUKZWD3+T pinout, MAX6717AUKZWD3+T application, or MAX6717AUKZWD3+T equivalent, key selection criteria include dual-rail voltage monitoring capability, guaranteed operation at sub-1V supply, 280ms reset timeout precision, open-drain RST logic compatibility with bidirectional μP reset pins, and AEC-Q100-qualified variants for automotive-adjacent systems.
Technical Context
The MAX6717AUKZWD3+T implements independent dual-voltage comparators with internal 1.62V threshold on both VCC1 and VCC2 inputs (W-suffix), hysteresis of 0.5% of VTH, and temperature coefficient of 20ppm/°C. Its reset timeout is fixed at 280ms (D5 suffix), generated by an internal RC timer with no external components required.
It features an open-drain RST output referenced to VCC1, internal 50kΩ MR pullup, and watchdog disable-by-open functionality on WDI. The device operates across -40°C to +125°C and draws only 10µA typical supply current at 3.6V with both supplies active.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Reset Threshold | 1.62V (W-suffix), factory-trimmed ±37.5mV tolerance - ensures reliable brownout detection for 1.8V core rails |
| VCC2 Reset Threshold | 1.62V (W-suffix), factory-trimmed ±37.5mV tolerance - matches VCC1 for symmetric dual-rail monitoring |
| Reset Timeout Period | 280ms (min), D5 suffix - provides sufficient hold time for complex μP initialization sequences |
| Supply Current | 10µA typ at 3.6V - enables battery-backed systems to maintain supervision >10 years on coin cell |
| Operating Temperature | -40°C to +125°C - qualified for under-hood automotive, industrial control, and telecom base station environments |
| Reset Output Type | Open-drain active-low RST - compatible with bidirectional μP reset I/O and level-shifting interfaces |
| Valid Reset Down To | VCC1 or VCC2 ≥ 0.8V - guarantees deterministic reset state during deep brownout conditions |
Pinout & Package
SOT23-6 package (package code U6+1), 1.6mm × 2.9mm footprint, 0.95mm height, thermal resistance θJA = 115°C/W on multilayer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RST | Active-low reset output | Open-drain output asserted low when VCC1/VCC2 < 1.62V; requires external pullup; drives μP reset pin directly |
| 2 - GND | Ground reference | Common return path for all internal comparators, timers, and output drivers; must be low-impedance |
| 3 - MR | Manual-reset input | Active-low input with internal 50kΩ pullup to VCC1; 1µs minimum pulse width; debounced internally |
| 4 - VCC2 | Secondary supply input | Powers internal VCC2 comparator and sets VCC2 reset threshold; monitors 0.9V–3.3V rails |
| 5 - VCC1 | Primary supply input | Powers device core and sets VCC1 reset threshold; monitors 1.8V–5.0V rails; defines RST output reference |
| 6 - WDI | Watchdog input | Unconnected = watchdog disabled; rising/falling edge resets 1.12s normal timeout; 35s startup delay after reset |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous VCC1 and VCC2 supervision with matched 1.62V thresholds eliminates need for two discrete supervisors |
| Guaranteed reset validity at 0.8V | Ensures deterministic reset assertion even during severe brownout - critical for fail-safe system recovery |
| 280ms factory-programmed timeout | Eliminates external timing capacitor and associated drift/error; reduces BOM count and layout area |
| Watchdog disable-by-open | Leaving WDI floating disables watchdog function without requiring pullup/pulldown resistors or configuration pins |
| Immunity to short VCC transients | Rejects <20µs glitches below reset threshold - prevents spurious resets in noisy power environments |
| Low 10µA supply current | Enables always-on supervision in energy-constrained applications such as battery-backed real-time clocks and IoT sensors |
Applications
| Telecom Power Sequencing | Industrial PLC I/O Modules |
|---|---|
|
Use Scenario: Sequencing multiple DC-DC converters powering FPGA, PHY, and MCU rails in 5G small cell base stations. IC Role / Device Role / Timing Role: Dual-rail supervisor asserting synchronized reset until both 3.3V management rail and 1.2V core rail stabilize above 1.62V. Use Value: Prevents metastability and latch-up during power-up by enforcing 280ms minimum reset hold time across both rails. |
Use Scenario: Monitoring isolated 24V field bus supply and 3.3V logic supply in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Detecting undervoltage on either supply and holding μP in reset until both exceed 1.62V with hysteresis. Use Value: Guarantees safe shutdown before corrupted I/O states propagate to connected actuators or sensors. |
| Automotive Infotainment Head Units | Medical Patient Monitor Power Management |
|
Use Scenario: Supervising 5V USB-C PD input and 1.8V SoC core supply in vehicle infotainment systems exposed to load dump transients. IC Role / Device Role / Timing Role: Providing robust reset assertion during cold-crank (VCC1 drops to 0.8V) while maintaining valid logic state. Use Value: Meets AEC-Q100 stress requirements and avoids boot failure due to marginal supply conditions. |
Use Scenario: Ensuring clean power-up of ARM-based patient monitor SoC powered by backup Li-ion and main 12V supply. IC Role / Device Role / Timing Role: Monitoring both supplies independently and asserting reset if either falls below 1.62V during battery switchover. Use Value: Eliminates risk of corrupted ECG waveform capture or false alarm generation during supply transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-supply supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6715AUKZWD3+T | Same SOT23-6 package, identical 280ms timeout and W-thresholds, but lacks WDI pin (no watchdog support) | Applicable where watchdog functionality is unnecessary and PCB layout must avoid unused WDI trace | Select when system firmware handles fault recovery without hardware watchdog intervention |
| TLV809E33DBZR | Single-supply 3.3V supervisor (3.08V threshold), SOT23-3, no VCC2 input or MR pin | Only monitors primary rail; requires separate IC for secondary supply supervision | Choose only for cost-sensitive single-rail applications where dual monitoring is not required |
Compared with MAX6717AUKZWD3+T, MAX6715AUKZWD3+T removes watchdog capability to reduce pin count and cost, while TLV809E33DBZR sacrifices dual-rail monitoring and manual reset for minimal footprint - making MAX6717AUKZWD3+T the only option supporting full feature set in compact SOT23-6.
Availability
MAX6717AUKZWD3+T is available at Aetrix Electronics and suitable for telecom infrastructure, industrial PLCs, and automotive infotainment systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6717AUKZWD3+T 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 high-performance analog and mixed-signal ICs for power, sensing, and interface applications in demanding environments.
The MAX6715A–MAX6729A family delivers ultra-low-voltage supervisory circuits optimized for multirail embedded systems where reliability, small size, and guaranteed operation down to 0.8V are critical design requirements.
FAQ
What is the reset threshold voltage for MAX6717AUKZWD3+T on VCC1 and VCC2?
The MAX6717AUKZWD3+T uses the W-suffix reset threshold configuration, providing a factory-trimmed 1.62V (±37.5mV) reset threshold on both VCC1 and VCC2 inputs. This value is specified over the full -40°C to +125°C operating range with 20ppm/°C tempco and 0.5% hysteresis relative to nominal VTH - ensuring consistent brownout detection across temperature and process variation.
Does MAX6717AUKZWD3+T support manual reset functionality?
Yes, MAX6717AUKZWD3+T includes an active-low manual-reset input (MR) on pin 3, featuring an internal 50kΩ pullup resistor to VCC1. A logic-low pulse ≥1µs on MR forces RST output low for the full 280ms reset timeout period, enabling operator-initiated or test-system-triggered resets without external components.
Can MAX6717AUKZWD3+T monitor three supply voltages?
No, MAX6717AUKZWD3+T is a dual-supply supervisor monitoring only VCC1 and VCC2. It does not include RSTIN or PFI inputs - those are present only on variants like MAX6719A/MAX6723A. For triple-voltage monitoring, consider MAX6719AUKZWD3+T (with RSTIN) or MAX6728AUKZWD3+T (with PFI/PFO), both in SOT23-6 but with different pinouts and functions.
What is the watchdog behavior of MAX6717AUKZWD3+T?
MAX6717AUKZWD3+T includes a watchdog input (WDI) on pin 6 with dual-mode timing: 35s minimum startup period after reset, followed by 1.12s minimum normal timeout. Watchdog is disabled by leaving WDI unconnected - no pullup or pulldown required - and re-enabled by driving WDI with valid edges. The watchdog asserts RST for the full 280ms timeout upon timeout.
Is MAX6717AUKZWD3+T qualified for automotive applications?
MAX6717AUKZWD3+T itself is not AEC-Q100 qualified; however, the pin-compatible MAX6719AUTTWD3+T (same W-thresholds, 280ms timeout, SOT23-6) is AEC-Q100 Grade 2 qualified (-40°C to +105°C). For automotive-grade deployment, specify MAX6719AUTTWD3+T - it shares identical electrical specs and pinout but adds automotive qualification and enhanced ESD/lifetime testing.
MAX6717AUKZWD3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 1.665V, 2.313V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6717AUKZWD3+T FAQ
1.How can I place an order for MAX6717AUKZWD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6717AUKZWD3+T 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 MAX6717AUKZWD3+T reliable?
The price and inventory of MAX6717AUKZWD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6717AUKZWD3+T is usually 5 days.
3.What payment methods are accepted for MAX6717AUKZWD3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6717AUKZWD3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6717AUKZWD3+T?
MAX6717AUKZWD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6717AUKZWD3+T 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 MAX6717AUKZWD3+T?
For technical support, including MAX6717AUKZWD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6717AUKZWD3+T requirements.
6.How does Aetrix verify that MAX6717AUKZWD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6717AUKZWD3+T 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 MAX6717AUKZWD3+T meets industry standards.
7.What is the process for return or replacement of MAX6717AUKZWD3+T?
All MAX6717AUKZWD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6717AUKZWD3+T, 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 MAX6717AUKZWD3+T part is unused and in its original packaging.
Return procedure for MAX6717AUKZWD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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