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Analog Devices Inc./Maxim Integrated MAX6717AUKSDD3+T
- Part No.:
- MAX6717AUKSDD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6717AUKSDD3+T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,677
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Product details
Overview
MAX6717AUKSDD3+T from Maxim Integrated is a dual-supply ultra-low-voltage microprocessor supervisory circuit in SOT23-6 package, monitoring VCC1 (primary) and VCC2 (secondary) with factory-trimmed reset thresholds of 4.625V (VTH1) and 3.075V (VTH2), 280ms minimum reset timeout, and open-drain active-low RST output. It ensures reliable system reset during power-up, brownout, or undervoltage events in multivoltage embedded systems.
For engineers reviewing the MAX6717AUKSDD3+T datasheet, MAX6717AUKSDD3+T pinout, MAX6717AUKSDD3+T application, or MAX6717AUKSDD3+T equivalent, key selection criteria include dual-supply threshold accuracy (±1.5% over -40°C to +125°C), guaranteed reset validity down to VCC1/VCC2 = 0.8V, low 15µA typical supply current at 3.6V, and compatibility with manual-reset, watchdog, and power-fail monitoring functions.
Technical Context
The MAX6717AUKSDD3+T implements independent voltage comparators for VCC1 and VCC2, each referenced to precision internal bandgap references, with hysteresis of 0.5% to prevent chatter near threshold. Its reset logic asserts RST low when either supply falls below its trimmed threshold and holds for a fixed 280ms (min) timeout after both supplies recover.
This device uses an open-drain RST output referenced to VCC1, requiring an external pullup, and includes a manual-reset input (MR) with internal 50kΩ pullup to VCC1 and 200ns MR-to-reset delay. It lacks watchdog (WDI), RSTIN, PFI/PFO, or RST2 functionality-confirmed by its suffix "D3" (280ms timeout) and "A" (open-drain RST) in the Selector Guide.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Reset Threshold | 4.625V (typ), factory-trimmed ±1.5% - sets precise brownout detection point for primary supply |
| VCC2 Reset Threshold | 3.075V (typ), factory-trimmed ±1.5% - enables accurate secondary supply monitoring without external resistors |
| Reset Timeout Period | 280ms (min), D3-suffix - ensures sufficient hold time for full µP initialization after power recovery |
| Supply Current | 15µA (typ) at 3.6V - enables battery-backed or low-power always-on supervision |
| Operating Temperature | -40°C to +125°C - supports automotive under-hood and industrial control environments |
| Reset Output Type | Active-low open-drain RST - allows wired-OR reset bus and flexible voltage-level translation |
| Minimum Valid VCC | 0.8V for VCC1 or VCC2 - guarantees correct reset state during deep brownout conditions |
Pinout & Package
SOT23-6 package (package code U6+1), 1.6mm × 2.9mm footprint, 1.1mm height, thermal resistance θJA = 115°C/W on multilayer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low open-drain reset output; sinks current when asserted; requires external pullup to VCC1 or another rail |
| 2 | GND | Ground reference for all internal comparators and logic; must be low-impedance connection |
| 3 | MR | Active-low manual-reset input; internally pulled up to VCC1 (50kΩ); resets system when pulled low ≥1µs |
| 4 | VCC2 | Secondary supply input; powers internal VCC2 comparator and sets VTH2 threshold; valid 0.8V–5.5V |
| 5 | VCC1 | Primary supply input; powers core logic, VCC1 comparator, and RST driver; valid 0.8V–5.5V |
| 6 | NC | No connect; unused pin per MAX6717A pin mapping - must remain floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent supply monitoring | Simultaneous VCC1 and VCC2 supervision with separate, factory-trimmed thresholds eliminates need for discrete comparators |
| Guaranteed reset validity at low VCC | Operates correctly with VCC1 or VCC2 as low as 0.8V - critical for detecting partial brownouts before complete failure |
| Low quiescent current | 15µA typical ICC1 at 3.6V - extends battery life in portable equipment and reduces self-heating in sealed enclosures |
| Immunity to short VCC transients | Withstands ≤20µs negative-going glitches (per typical characteristics) - prevents spurious resets from EMI or switching noise |
| Industrial temperature range | Rated -40°C to +125°C - qualified for use in motor drives, base stations, and automotive body electronics |
Applications
| Telecom Power Management | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Monitoring dual DC/DC outputs (5V and 3.3V) in telecom line cards where clean power sequencing and brownout detection are required. IC Role / Device Role / Timing Role: Dual-supply supervisor asserting open-drain RST to halt processor execution until both rails stabilize post-power-up or fault recovery. Use Value: Prevents corrupted firmware execution during unstable power conditions, reducing field failures in carrier-grade equipment. |
Use Scenario: Ensuring deterministic reset behavior in programmable logic controller backplane modules exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Providing guaranteed reset assertion down to 0.8V VCC1/VCC2 and holding for 280ms to allow FPGA configuration and analog front-end calibration. Use Value: Eliminates need for external RC timing networks, improving long-term reliability and reducing BOM count in harsh industrial environments. |
| Medical Diagnostic Imaging | Automotive Infotainment Head Units |
Use Scenario: Supervising primary (3.3V) and auxiliary (1.8V) supplies powering high-speed ADCs and FPGAs in ultrasound beamformers. IC Role / Device Role / Timing Role: Detecting sub-100mV droops on VCC2 using factory-trimmed 3.075V threshold and initiating controlled shutdown via RST signal. Use Value: Maintains data integrity during transient load steps by triggering reset before ADC reference instability causes image artifacts. |
Use Scenario: Managing power-on reset sequencing for SoC, display controller, and audio codec in head units with multiple isolated power domains. IC Role / Device Role / Timing Role: Asserting open-drain RST across shared reset bus while tolerating cold-crank VCC1 dips to 0.9V during engine start. Use Value: Enables fail-safe boot without external supervision circuitry, meeting ISO 16750-2 pulse 4 requirements for automotive electrical systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-supply supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6715AUKSDD3+T | Same SOT23-6 package, identical 4.625V/3.075V thresholds and 280ms timeout, but open-drain RST only (no MR pin) | Lacks manual-reset input - unsuitable where field service or test-mode reset is required | Select when MR functionality is unnecessary and lowest pin count is prioritized |
| TLV803EB29DBVR | Single-supply supervisor (2.93V threshold), SOT23-3, no VCC2 monitoring or MR support, 200ms timeout | Cannot monitor dual rails - requires two devices for equivalent coverage, increasing board area and cost | Choose only for simple single-rail applications where space constraints prohibit SOT23-6 |
Compared with MAX6717AUKSDD3+T, MAX6715AUKSDD3+T removes MR capability to reduce pin count, while TLV803EB29DBVR provides only single-rail supervision - neither offers the integrated dual-monitoring, manual-reset, and guaranteed 0.8V operation of MAX6717AUKSDD3+T in one SOT23-6 device.
Availability
MAX6717AUKSDD3+T is available at Aetrix Electronics and suitable for telecom power management, industrial PLC I/O modules, medical diagnostic imaging, and automotive infotainment head units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6717AUKSDD3+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 precision analog and mixed-signal ICs for demanding industrial, automotive, and communications applications, emphasizing reliability, low power, and integration.
The MAX6715A–MAX6729A family delivers compact, ultra-low-voltage supervisory circuits optimized for multivoltage systems where simultaneous monitoring of primary and secondary rails is essential for robust µP operation.
FAQ
What is the exact reset threshold voltage for VCC1 on MAX6717AUKSDD3+T?
The MAX6717AUKSDD3+T has a factory-trimmed VCC1 reset threshold of 4.625V (typical), with ±1.5% tolerance over temperature and supply voltage. This value is fixed by the "T" suffix in the reset threshold coding and confirmed in the Electrical Characteristics table under VTH1 (L-suffix). The MAX6717AUKSDD3+T does not support adjustable thresholds - it relies solely on internal trimming for VCC1 and VCC2.
Does MAX6717AUKSDD3+T support watchdog timer functionality?
No, MAX6717AUKSDD3+T does not include watchdog timer functionality. Its suffix "A" indicates open-drain RST only, and absence of WDI pin in the 6-pin SOT23 mapping confirms this. Watchdog capability is present only in MAX6721A–MAX6729A/MAX6797A variants (which include pin 5 as WDI). For MAX6717AUKSDD3+T, system-level watchdog must be implemented externally or within the µP.
What is the function of Pin 6 on MAX6717AUKSDD3+T?
Pin 6 on MAX6717AUKSDD3+T is NC (No Connect) - it is not bonded internally and serves no electrical function. Per the Pin Description table, MAX6717A uses pins 1–5 (RST, GND, MR, VCC2, VCC1) and leaves pin 6 unassigned. It must remain unconnected (floating) or tied to GND per PCB layout best practices to avoid parasitic coupling.
Can MAX6717AUKSDD3+T monitor a 1.2V supply as VCC2?
Yes, MAX6717AUKSDD3+T can monitor a 1.2V supply on VCC2, as its VCC2 operating range is specified from 0.8V to 5.5V. However, the factory-trimmed VCC2 threshold is fixed at 3.075V (S-suffix), so a 1.2V rail will never assert reset unless it drops below that level - making it unsuitable for direct 1.2V supervision. To monitor 1.2V, use a variant with lower VTH2 (e.g., "E" = 0.833V) or add an external resistor divider to scale the voltage.
What is the maximum sink current capability of the RST output on MAX6717AUKSDD3+T?
The RST output on MAX6717AUKSDD3+T is an open-drain driver rated to sink up to 3.2mA at VCC1 ≥ 4.5V while maintaining VOL ≤ 0.4V. At lower voltages (e.g., VCC1 ≥ 2.7V), it sinks 1.2mA with VOL ≤ 0.3V. These values are specified in the Electrical Characteristics table under "RST Output Low" and define the maximum load the MAX6717AUKSDD3+T can drive directly without external buffering.
MAX6717AUKSDD3+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:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 0.788V, 2.925V
- 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
MAX6717AUKSDD3+T FAQ
1.How can I place an order for MAX6717AUKSDD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6717AUKSDD3+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 MAX6717AUKSDD3+T reliable?
The price and inventory of MAX6717AUKSDD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6717AUKSDD3+T is usually 5 days.
3.What payment methods are accepted for MAX6717AUKSDD3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6717AUKSDD3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6717AUKSDD3+T?
MAX6717AUKSDD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6717AUKSDD3+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 MAX6717AUKSDD3+T?
For technical support, including MAX6717AUKSDD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6717AUKSDD3+T requirements.
6.How does Aetrix verify that MAX6717AUKSDD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6717AUKSDD3+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 MAX6717AUKSDD3+T meets industry standards.
7.What is the process for return or replacement of MAX6717AUKSDD3+T?
All MAX6717AUKSDD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6717AUKSDD3+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 MAX6717AUKSDD3+T part is unused and in its original packaging.
Return procedure for MAX6717AUKSDD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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