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Analog Devices Inc./Maxim Integrated MAX6717AUKSFD3+T
- Part No.:
- MAX6717AUKSFD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6717AUKSFD3+T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,739
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Product details
Overview
MAX6717AUKSFD3+T from Maxim Integrated is a dual-supply ultra-low-voltage microprocessor supervisory circuit in 6-pin SOT23 package, monitoring VCC1 (factory-trimmed 4.625V threshold) and VCC2 (1.575V threshold) with 280ms reset timeout, open-drain active-low RST output, manual-reset input, and guaranteed reset validity down to VCC1 or VCC2 = 0.8V - used in telecom power sequencing and industrial controller brownout protection.
For engineers reviewing the MAX6717AUKSFD3+T datasheet, MAX6717AUKSFD3+T pinout, MAX6717AUKSFD3+T application, or MAX6717AUKSFD3+T equivalent, key selection criteria include dual-rail voltage monitoring tolerance, 280ms minimum reset timeout, open-drain RST logic compatibility with bidirectional μP reset pins, and operation across –40°C to +125°C for harsh-environment embedded systems.
Technical Context
The MAX6717AUKSFD3+T implements independent dual-voltage supervision with factory-trimmed thresholds: VTH1 = 4.625V (±125mV) on VCC1 and VTH2 = 1.575V (±37.5mV) on VCC2, each with 0.5% hysteresis. It asserts reset when either supply falls below its threshold and holds reset for 280ms after both supplies recover.
It features an internal 50kΩ MR pullup, supports manual reset via active-low MR input with 1µs minimum pulse width, and guarantees valid reset output logic state at VCC1/VCC2 ≥ 0.8V - enabling reliable operation during deep brownout conditions without external biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Reset Threshold | 4.625V (typ), ±125mV tolerance - sets precise brownout detection point for primary 5V/3.3V rails |
| VCC2 Reset Threshold | 1.575V (typ), ±37.5mV tolerance - enables monitoring of low-voltage cores (e.g., 1.8V/1.5V domains) |
| Reset Timeout Period | 280ms (min) - ensures sufficient hold time for full μP initialization and peripheral stabilization |
| Supply Current | 15µA (typ) at 3.6V - minimizes quiescent load in battery-backed or energy-sensitive systems |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive, industrial PLC, and telecom base station use |
| Reset Output Type | Open-drain active-low RST - compatible with bidirectional μP reset I/O and flexible pullup voltage selection |
| MR Input Logic | Active-low with internal 50kΩ pullup to VCC1 - eliminates external components for manual reset button interface |
Pinout & Package
MAX6717AUKSFD3+T is housed in a 6-pin SOT23-6 package (package code U6+1), with 1.6mm × 2.9mm footprint and 0.95mm height, optimized for space-constrained PCB layouts in portable and industrial equipment.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low open-drain reset output - asserted when VCC1/VCC2 drop below thresholds or MR is pulled low; requires external pullup |
| 2 | GND | Ground reference for all internal comparators and logic - must be low-impedance connection to system ground plane |
| 3 | MR | Active-low manual-reset input - internal 50kΩ pullup to VCC1; 1µs minimum pulse width ensures noise immunity |
| 4 | VCC2 | Secondary supply input - powers internal circuitry when VCC2 > VCC1 and provides reference for VTH2 comparator |
| 5 | VCC1 | Primary supply input - powers device when VCC1 > VCC2 and provides reference for VTH1 comparator and RST driver |
| 6 | NC | No connect - pin 6 is unconnected per MAX6717A functional configuration; must remain floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous supervision of VCC1 (4.625V) and VCC2 (1.575V) with separate thresholds and hysteresis - eliminates need for two discrete supervisors |
| Guaranteed reset validity at low VCC | Reset output remains logically valid even when VCC1 or VCC2 drops to 0.8V - critical for fail-safe behavior during deep brownout |
| Immunity to short VCC transients | Withstands negative-going VCC glitches ≤20µs (at 100mV overdrive) without false reset - reduces susceptibility to switching noise |
| Low quiescent current | 15µA typical ICC1 at 3.6V - extends battery life in portable instrumentation and remote sensors |
| Manual reset integration | Internal 50kΩ MR pullup eliminates external resistor - simplifies BOM and board layout for pushbutton-initiated recovery |
Applications
| Telecom Power Sequencing | Industrial PLC Controller |
|---|---|
Use Scenario: Sequencing startup of multiple DC-DC rails (e.g., 48V → 12V → 3.3V → 1.8V) in optical line terminals and baseband units. IC Role / Device Role / Timing Role: Dual-threshold supervisor ensures downstream rails only enable after upstream rails stabilize - prevents latch-up and inrush damage. Use Value: 280ms timeout guarantees full regulator settling before releasing μP reset, avoiding boot failures in multi-stage power architectures. |
Use Scenario: Monitoring main 24V DC input and isolated 5V logic rail in programmable logic controllers deployed in factory automation. IC Role / Device Role / Timing Role: Detects undervoltage on both rails simultaneously and asserts reset to halt program execution before corrupted I/O states occur. Use Value: Guaranteed reset validity down to 0.8V allows clean shutdown even during severe brownout events common in industrial power grids. |
| Portable Medical Monitor | Battery-Powered IoT Gateway |
Use Scenario: Supervising Li-ion battery (3.3V) and ultra-low-power MCU core rail (1.5V) in handheld ECG devices with sleep/wake cycles. IC Role / Device Role / Timing Role: Monitors both rails for safe wake-from-sleep transitions and triggers hardware reset if either drops below threshold during wake-up sequence. Use Value: 15µA supply current minimizes standby drain, extending battery runtime between charges without compromising supervision integrity. |
Use Scenario: Ensuring reliable boot of ARM Cortex-M based gateway after cold start from depleted supercapacitor backup power. IC Role / Device Role / Timing Role: Detects marginal VCC1 (3.3V) and VCC2 (1.5V) conditions during capacitor discharge and holds reset until stable regulation is achieved. Use Value: Factory-trimmed thresholds eliminate calibration overhead, while 280ms timeout accommodates slow supercapacitor recharge profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-supply supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6715AUKSFD3+T | Same 6-pin SOT23 package, identical 280ms timeout, but VCC1 threshold = 4.375V (M-suffix) and VCC2 = 1.388V (I-suffix) | Suitable where lower primary rail threshold is required (e.g., 3.3V systems with tighter margin) | Select when system VCC1 nominal is 3.3V rather than 5V, and 4.375V trip point better matches design margin requirements. |
| TLV803EC26DBVR | Single-supply supervisor (2.63V threshold), SOT23-5, no VCC2 monitoring, 200ms timeout, 1.8µA ICC | Lacks dual-rail capability; requires separate IC for secondary rail monitoring | Choose only for cost-sensitive single-rail applications where VCC2 supervision is handled externally or omitted. |
Compared with MAX6715AUKSFD3+T, the MAX6717AUKSFD3+T provides higher VCC1 trip point (4.625V vs. 4.375V) for improved noise margin on 5V rails, while TLV803EC26DBVR offers ultra-low current but sacrifices dual-supply functionality - making MAX6717AUKSFD3+T optimal for robust, integrated multirail supervision.
Availability
MAX6717AUKSFD3+T is available at Aetrix Electronics and suitable for telecom infrastructure, industrial control systems, and portable medical equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6717AUKSFD3+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 high integration.
The MAX6715A–MAX6729A family delivers compact, ultra-low-voltage supervisory circuits for multirail systems where simultaneous monitoring of primary and secondary supplies is essential for fail-safe operation.
FAQ
What is the exact reset threshold voltage for VCC1 on MAX6717AUKSFD3+T?
The MAX6717AUKSFD3+T has a factory-trimmed VCC1 reset threshold of 4.625V (typical), with a guaranteed range of 4.500V to 4.750V at 25°C. This value corresponds to the 'D' suffix in the reset voltage threshold coding and is specified under falling VCC1 conditions with 0.5% hysteresis - ensuring consistent brownout detection across temperature and process variation.
Does MAX6717AUKSFD3+T support monitoring of a third voltage rail?
No, MAX6717AUKSFD3+T does not support a third monitored voltage. It is a dual-supply supervisor with dedicated VCC1 and VCC2 inputs only. Models like MAX6719AUKSFD3+T or MAX6723AUKSFD3+T include the RSTIN pin for externally adjustable third-rail monitoring; MAX6717AUKSFD3+T omits this pin and functionality per its 6-pin SOT23 pinout and product variant definition.
What is the function of pin 6 on MAX6717AUKSFD3+T?
Pin 6 on MAX6717AUKSFD3+T is a no-connect (NC) terminal. Per the official pin description table for MAX6717A variants, pin 6 is unassigned and must remain electrically floating - it is not internally bonded and serves no functional purpose. PCB layout should avoid routing or soldering to this pad to prevent unintended coupling or mechanical stress.
Can MAX6717AUKSFD3+T operate with VCC2 higher than VCC1?
Yes, MAX6717AUKSFD3+T operates correctly when VCC2 exceeds VCC1. The device powers from whichever supply is higher (VCC1 or VCC2), and both comparators remain fully functional regardless of relative voltage levels. Internal circuitry ensures valid reset assertion and timing even when VCC2 = 3.3V and VCC1 = 1.8V, supporting flexible multirail architectures.
Is MAX6717AUKSFD3+T qualified for automotive applications?
MAX6717AUKSFD3+T is not AEC-Q100 qualified. While it operates across –40°C to +125°C and meets industrial reliability standards, only specific variants in the family (e.g., MAX6719AUTTWD1/V+T) carry AEC-Q100 qualification. For automotive-grade deployment, engineers must select explicitly qualified parts - MAX6717AUKSFD3+T is intended for industrial, telecom, and commercial applications.
MAX6717AUKSFD3+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:
- 1.05V, 2.925V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6717AUKSFD3+T FAQ
1.How can I place an order for MAX6717AUKSFD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6717AUKSFD3+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 MAX6717AUKSFD3+T reliable?
The price and inventory of MAX6717AUKSFD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6717AUKSFD3+T is usually 5 days.
3.What payment methods are accepted for MAX6717AUKSFD3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6717AUKSFD3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6717AUKSFD3+T?
MAX6717AUKSFD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6717AUKSFD3+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 MAX6717AUKSFD3+T?
For technical support, including MAX6717AUKSFD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6717AUKSFD3+T requirements.
6.How does Aetrix verify that MAX6717AUKSFD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6717AUKSFD3+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 MAX6717AUKSFD3+T meets industry standards.
7.What is the process for return or replacement of MAX6717AUKSFD3+T?
All MAX6717AUKSFD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6717AUKSFD3+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 MAX6717AUKSFD3+T part is unused and in its original packaging.
Return procedure for MAX6717AUKSFD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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