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Analog Devices Inc./Maxim Integrated MAX6717UKSFD2+T
- Part No.:
- MAX6717UKSFD2+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- -
- Datasheet:
-
MAX6717UKSFD2+T.pdf
- Description:
- IC SUPERVISOR MPU SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,184
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Product details
Overview
MAX6717UKSFD2+T from Maxim Integrated is a dual-voltage microprocessor supervisory circuit in 5-pin SOT23 package, monitoring VCC1 (4.625V factory-trimmed threshold) and VCC2 (3.075V threshold) with 210ms minimum reset timeout, push-pull active-low RST output, manual reset input, and guaranteed reset validity down to VCC1 or VCC2 = 0.8V - used in telecom power sequencing and portable equipment brownout protection.
For engineers reviewing the MAX6717UKSFD2+T datasheet, MAX6717UKSFD2+T pinout, MAX6717UKSFD2+T application, or MAX6717UKSFD2+T equivalent, key selection criteria include dual-supply monitoring accuracy, 210ms reset hold time, push-pull RST drive capability into µP reset pins, low 14µA supply current at 3.6V, and operation across –40°C to +85°C industrial temperature range.
Technical Context
This device implements two independent voltage comparators with factory-trimmed thresholds (VTH1 = 4.625V, VTH2 = 3.075V), a reset timeout timer with fixed 210ms (min) delay, and a push-pull RST output referenced to VCC1. It asserts reset when either supply falls below its threshold and holds reset for the full timeout after recovery.
The MAX6717UKSFD2+T includes an internal 50kΩ pullup on MR, supports TTL/CMOS-compatible manual reset triggering, and guarantees valid reset logic state even when VCC1 or VCC2 drops to 0.8V - enabling robust brownout detection in battery-backed systems without external supervision.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.625V (factory-trimmed, ±125mV tolerance) - sets precise power-good detection for 5V or 4.8V primary rails |
| VCC2 Threshold | 3.075V (factory-trimmed, ±75mV tolerance) - enables accurate monitoring of 3.3V secondary supplies |
| Reset Timeout | 210ms (minimum) - ensures sufficient hold time for µP initialization and peripheral stabilization |
| Supply Current | 14µA (typical at 3.6V) - minimizes quiescent drain in always-on battery-powered applications |
| Operating Temp | –40°C to +85°C - qualified for industrial and telecom equipment environments |
| Reset Output | Push-pull active-low RST - drives µP reset pin directly without external pullup resistor |
| MR Input | Active-low with 50kΩ internal pullup to VCC1 - simplifies manual reset switch interface with no external components |
Pinout & Package
MAX6717UKSFD2+T uses a 5-pin SOT23-5 package (2.9mm × 1.6mm × 1.1mm body, 0.95mm pitch). Pin 1 is marked with dot; pin numbering follows standard SOT23 convention (counterclockwise from mark).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1; sinks ≥1.2mA at VCC1 ≥ 2.7V |
| 2 | GND | Analog/digital ground reference for all internal comparators and timing circuits |
| 3 | MR | Active-low manual reset input with internal 50kΩ pullup to VCC1; 1µs minimum pulse width required |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V range); powers internal VCC2 comparator and sets VTH2 = 3.075V |
| 5 | VCC1 | Primary supply input (1.8V–5.0V range); powers device core and sets VTH1 = 4.625V |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous VCC1 (4.625V) and VCC2 (3.075V) thresholds eliminate need for discrete supervisor ICs or resistor networks |
| Guaranteed reset validity down to 0.8V | Ensures reliable brownout detection even during deep supply sag - critical for battery-fail-safe systems |
| Push-pull RST output | Drives µP reset pin directly without external pullup; supports 0.3V VOL at 1.2mA sink current for clean logic-level assertion |
| Low 14µA supply current | Reduces standby power in always-on subsystems - e.g., real-time clock backup domains or modem wake logic |
| Immunity to short VCC transients | Rejects <20µs negative glitches below threshold - prevents spurious resets during switching noise or load transients |
Applications
| Telecom Power Sequencing | Portable Equipment Brownout Protection |
|---|---|
|
Use Scenario: Sequencing 48V-to-5V and 5V-to-3.3V DC/DC converters in base station line cards. IC Role / Device Role / Timing Role: Dual-supply monitor asserting reset until both 5V and 3.3V rails stabilize above 4.625V and 3.075V respectively. Use Value: Prevents µP boot corruption by enforcing 210ms minimum reset hold after power-up, matching converter soft-start timing. |
Use Scenario: Protecting ARM-based handheld devices during Li-ion battery voltage drop below 3.3V. IC Role / Device Role / Timing Role: Monitoring VCC1 (3.3V LDO output) and VCC2 (1.8V core rail) to trigger controlled shutdown before data loss. Use Value: Guaranteed reset assertion down to VCC = 0.8V allows detection of deep brownout events missed by higher-threshold supervisors. |
| Industrial PLC I/O Module Supervision | Set-Top Box Power Management |
|
Use Scenario: Ensuring deterministic startup of isolated CAN and analog I/O in programmable logic controllers. IC Role / Device Role / Timing Role: Providing synchronized reset to µP and FPGA fabric using single push-pull RST output driven from dual-rail monitoring. Use Value: Eliminates need for external OR-gating of multiple reset signals - reduces BOM count and PCB area in space-constrained modules. |
Use Scenario: Managing power-up sequence of MPEG decoder SoC, DDR memory, and HDMI PHY in consumer STBs. IC Role / Device Role / Timing Role: Monitoring main 3.3V AVDD and 1.2V core supplies to prevent partial initialization during marginal input voltage conditions. Use Value: Factory-trimmed 4.625V/3.075V thresholds match typical STB rail tolerances without calibration - reducing test time and field failure rates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6717UKSFD3+T | Same package and pinout; 420ms (min) reset timeout vs. 210ms | Suitable where longer reset hold is needed for slow-start peripherals (e.g., high-capacitance displays) | Select when system requires extended reset assertion beyond 210ms - no layout change required |
| TPS3808G33DBVR | Single-supply monitor (3.3V threshold only); open-drain RST; 200ms timeout; 2.5µA IQ | Lacks dual-rail capability - requires separate IC for VCC1 monitoring | Choose only if monitoring one rail suffices and ultra-low IQ (<3µA) is prioritized over dual-voltage functionality |
Compared with MAX6717UKSFD3+T and TPS3808G33DBVR, the MAX6717UKSFD2+T uniquely delivers factory-trimmed dual-threshold supervision with push-pull drive in a 5-pin SOT23, balancing precision, integration, and ease of µP interface - making it optimal for compact dual-rail systems requiring deterministic 210ms reset timing.
Availability
MAX6717UKSFD2+T is available at Aetrix Electronics and suitable for telecom power sequencing, portable equipment brownout protection, and industrial PLC I/O module supervision requiring stable component supply and guaranteed long-term availability.
Supply support for MAX6717UKSFD2+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 power, sensing, and interface applications, with leadership in supervisory, PMIC, and data-converter technologies.
The MAX6715–MAX6729 family was engineered for ultra-low-voltage, multi-rail microprocessor supervision in space-constrained, battery-sensitive, and industrial-grade systems - emphasizing factory-trimmed accuracy, low IQ, and guaranteed operation down to 0.8V.
FAQ
What is the exact reset timeout period of the MAX6717UKSFD2+T?
The MAX6717UKSFD2+T has a minimum reset timeout period of 210ms, as indicated by the 'D3' suffix in its part number. This is the guaranteed minimum duration for which the RST output remains asserted after all monitored supplies rise above their thresholds. Typical timeout is 210ms, with maximum specified at 280ms across temperature and voltage ranges per the datasheet's Electrical Characteristics table.
Does the MAX6717UKSFD2+T support monitoring a third voltage rail?
No, the MAX6717UKSFD2+T is a dual-voltage supervisor and does not include RSTIN or PFI inputs. It monitors only VCC1 and VCC2. For triple-voltage monitoring, consider MAX6719/MAX6720 (with RSTIN) or MAX6728/MAX6729 (with PFI/PFO), which are distinct variants in the same family but require different pinouts and board layouts.
What is the function of the MR pin on the MAX6717UKSFD2+T?
The MR (Manual Reset) pin on the MAX6717UKSFD2+T is an active-low input with an internal 50kΩ pullup to VCC1. Pulling MR low forces an immediate reset assertion, which remains active for the full 210ms timeout period after MR returns high. It requires a minimum 1µs pulse width and supports direct connection to a momentary switch to GND - no external components needed.
Is the RST output of the MAX6717UKSFD2+T push-pull or open-drain?
The MAX6717UKSFD2+T features a push-pull active-low RST output, as confirmed by the Selector Guide and Pin Description. This means it actively drives both high (to VCC1) and low (to GND), eliminating the need for an external pullup resistor - unlike open-drain variants such as MAX6715. The output can sink ≥1.2mA at VCC1 ≥ 2.7V with VOL ≤ 0.3V.
What are the factory-trimmed voltage thresholds for MAX6717UKSFD2+T?
The MAX6717UKSFD2+T has factory-trimmed thresholds of VTH1 = 4.625V (for VCC1) and VTH2 = 3.075V (for VCC2), as decoded from the 'SF' suffix per the Reset Voltage Threshold Suffix Guide. These values are guaranteed over temperature with ±125mV and ±75mV tolerances respectively, enabling precise power-good detection without external resistor dividers.
MAX6717UKSFD2+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- -
- Number of Voltages Monitored:
- -
- Voltage - Threshold:
- -
- Output:
- -
- Reset:
- -
- Reset Timeout:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX6717UKSFD2+T FAQ
1.How can I place an order for MAX6717UKSFD2+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6717UKSFD2+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 MAX6717UKSFD2+T reliable?
The price and inventory of MAX6717UKSFD2+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6717UKSFD2+T is usually 5 days.
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4.How is shipping managed for MAX6717UKSFD2+T?
MAX6717UKSFD2+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6717UKSFD2+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 MAX6717UKSFD2+T?
For technical support, including MAX6717UKSFD2+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6717UKSFD2+T requirements.
6.How does Aetrix verify that MAX6717UKSFD2+T is sourced from the original manufacturer or authorized distributors?
All MAX6717UKSFD2+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 MAX6717UKSFD2+T meets industry standards.
7.What is the process for return or replacement of MAX6717UKSFD2+T?
All MAX6717UKSFD2+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6717UKSFD2+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 MAX6717UKSFD2+T part is unused and in its original packaging.
Return procedure for MAX6717UKSFD2+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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