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Analog Devices Inc./Maxim Integrated MAX6716UTSYD3+T
- Part No.:
- MAX6716UTSYD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6716UTSYD3+T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
MAX6716UTSYD3+T from Maxim Integrated is a dual-voltage microprocessor supervisory circuit in 6-pin SOT23 package, monitoring VCC1 (4.625V threshold) and VCC2 (3.075V threshold) with 210ms 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 server board management.
For engineers reviewing the MAX6716UTSYD3+T datasheet, MAX6716UTSYD3+T pinout, MAX6716UTSYD3+T application, or MAX6716UTSYD3+T equivalent, key selection factors include dual-supply threshold accuracy (±1.5% over temp), ultra-low 14µA supply current at 3.6V, immunity to sub-20µs VCC transients, and compatibility with 1.8V/3.3V I/O domains in space-constrained embedded systems.
Technical Context
The MAX6716UTSYD3+T implements independent voltage comparators for primary (VCC1) and secondary (VCC2) supplies, each with factory-trimmed thresholds and 0.5% hysteresis referenced to typical VTH. Its internal reset timeout timer guarantees minimum 210ms assertion after all monitored voltages recover above threshold.
This device uses BiCMOS process technology (1072 transistors) and features an internal 50kΩ pullup on MR, push-pull RST referenced to VCC1, and logic-level compatible inputs (VIH = 0.7×VCC1, VIL = 0.3×VCC1). It operates across -40°C to +85°C with supply voltage range 0.8V–5.5V per rail.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.625V (factory-trimmed, ±1.5% over -40°C to +85°C) - sets precise brownout detection for 5V or 4.8V system rails |
| VCC2 Threshold | 3.075V (factory-trimmed, ±1.5% over -40°C to +85°C) - enables reliable monitoring of 3.3V I/O or auxiliary supplies |
| Reset Timeout | 210ms (minimum) - ensures sufficient hold time for CPU initialization and peripheral stabilization |
| Supply Current | 14µA (typical at 3.6V) - minimizes quiescent power in battery-backed or always-on subsystems |
| Reset Output Type | Push-pull active-low RST - eliminates need for external pullup and drives directly into CMOS/TTL reset inputs |
| MR Input | Active-low with 50kΩ internal pullup to VCC1 - supports momentary switch interface without external components |
| Operating Temp | -40°C to +85°C - qualified for industrial and telecom equipment environments |
Pinout & Package
MAX6716UTSYD3+T is housed in a 6-pin SOT23-6 package (1.6mm × 2.9mm × 1.1mm), RoHS-compliant and lead-free (+T suffix), with thermal pad not electrically connected.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1; sinks 3.2mA at VCC1 ≥ 4.5V; asserts when VCC1/VCC2 drop below thresholds or MR is pulled low |
| 2 | GND | Analog/digital ground reference for all internal comparators, timers, and output drivers |
| 3 | MR | Active-low manual reset input with internal 50kΩ pullup to VCC1; 1µs minimum pulse width; immune to <100ns glitches |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V range); powers internal VCC2 comparator and sets RST2 reference if enabled |
| 5 | VCC1 | Primary supply input (1.8V–5.0V range); powers core logic, sets RST output reference, and sources MR pullup |
| 6 | NC | No connect - internally unconnected; must be left floating or tied to GND per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous VCC1 (4.625V) and VCC2 (3.075V) supervision with separate comparators and hysteresis - eliminates need for two discrete supervisors |
| Guaranteed reset validity down to 0.8V | Ensures correct RST logic state even during deep brownout conditions where VCC1 or VCC2 drops to 0.8V - critical for fail-safe shutdown sequencing |
| Immunity to short VCC transients | Rejects negative-going VCC glitches <20µs duration (at 100mV overdrive), preventing spurious resets in noisy power environments |
| Low supply current | 14µA typical at 3.6V - reduces standby power in always-on monitoring circuits and extends battery life in portable equipment |
| Push-pull RST output | Drives reset line directly without external pullup resistor - simplifies BOM, improves noise immunity, and ensures fast rise/fall times |
Applications
| Telecom Line Card Power Sequencing | Industrial PLC CPU Board Supervision |
|---|---|
|
Use Scenario: Monitoring 48V-to-5V DC/DC primary output and 3.3V FPGA I/O rail on a carrier-grade line card. IC Role / Device Role / Timing Role: Dual-supply supervisor asserting reset until both rails stabilize post-power-up and holding reset during brownout events. Use Value: Prevents FPGA configuration corruption by enforcing 210ms minimum reset hold time and rejecting transient dips on either rail. |
Use Scenario: Ensuring deterministic boot of ARM Cortex-M7 CPU in programmable logic controller under fluctuating 24V field power. IC Role / Device Role / Timing Role: Monitoring main 5V logic supply and 3.3V analog sensor interface supply with manual reset via front-panel button. Use Value: Guarantees valid reset assertion down to 0.8V on either rail, enabling safe shutdown before undervoltage lockout triggers. |
| Server Baseboard Management Controller (BMC) | Portable Medical Diagnostic Device |
|
Use Scenario: Supervising 12V-to-3.3V PMIC output and 1.8V SoC core rail in a redundant BMC module. IC Role / Device Role / Timing Role: Dual-threshold monitoring with push-pull RST driving BMC reset input and MR enabling firmware-triggered recovery. Use Value: Eliminates external pullup resistor, reducing PCB area and improving ESD robustness on high-density server boards. |
Use Scenario: Battery-powered ultrasound probe requiring reliable reset during Li-ion discharge from 4.2V to 3.0V. IC Role / Device Role / Timing Role: Monitoring main 3.3V system rail and 1.8V ADC reference supply with ultra-low 14µA quiescent current. Use Value: Extends battery runtime between charges while maintaining precise 4.625V/3.075V trip points across temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6316US46D3+T | Same 6-pin SOT23 package, identical 4.625V/3.075V thresholds and 210ms timeout, but open-drain RST output requiring external pullup | Suitable where level-shifting or wired-OR reset bus is needed; less suitable for direct CMOS reset drive | Select MAX6316US46D3+T only if open-drain topology is required for system-level reset arbitration |
| TPS3808G33DBVR | 3.3V fixed VDD monitor only (no dual-rail support), 200ms timeout, 1.6µA supply current, SOT23-6 package | Limited to single-supply systems; lacks VCC2 monitoring and MR input | Choose TPS3808G33DBVR only for cost-sensitive single-rail applications where dual monitoring is unnecessary |
Compared with MAX6716UTSYD3+T, the MAX6316US46D3+T requires external pullup and offers no advantage in threshold accuracy or temperature stability, while the TPS3808G33DBVR omits critical dual-supply capability and manual reset - making MAX6716UTSYD3+T the only option meeting full functional requirements for multirail industrial control.
Availability
MAX6716UTSYD3+T is available at Aetrix Electronics and suitable for telecom infrastructure, industrial PLCs, and medical diagnostic equipment requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.
Supply support for MAX6716UTSYD3+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 management, sensing, and interface applications, with focus on reliability and integration for demanding industrial and communications systems.
The MAX6715–MAX6729 family delivers compact, ultra-low-power dual/triple supervisory circuits optimized for multivoltage embedded systems where board space, power budget, and reset timing integrity are critical constraints.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on MAX6716UTSYD3+T?
The MAX6716UTSYD3+T has factory-trimmed VCC1 reset threshold of 4.625V (min 4.500V, max 4.750V) and VCC2 threshold of 3.075V (min 3.000V, max 3.150V), specified over -40°C to +85°C with ±1.5% tolerance. These values are encoded in the "SY" suffix per Maxim's Reset Voltage Threshold Suffix Guide and confirmed in the Electrical Characteristics table on page 2 of the datasheet.
Does MAX6716UTSYD3+T support monitoring a third voltage rail?
No, MAX6716UTSYD3+T is a dual-voltage supervisor only. It monitors VCC1 and VCC2 exclusively. Third-rail monitoring requires models like MAX6719UTSYD3+T or MAX6720UTSYD3+T which include the RSTIN input. The MAX6716UTSYD3+T pinout has no RSTIN connection and its internal circuitry lacks the adjustable comparator path.
What is the function of Pin 6 on MAX6716UTSYD3+T?
Pin 6 on MAX6716UTSYD3+T is NC (No Connect) - it is internally unconnected and must be left floating or tied to GND per Maxim's layout recommendations. This differs from other variants in the MAX6715–MAX6729 family (e.g., MAX6729) that use Pin 6 for PFO. Confirmed in the Pin Description table on page 7 of the datasheet.
Can MAX6716UTSYD3+T operate with VCC1 = 1.8V and VCC2 = 1.2V?
Yes, MAX6716UTSYD3+T supports VCC1 as low as 1.8V and VCC2 as low as 0.9V per datasheet Absolute Maximum Ratings and Electrical Characteristics. Operation at 1.8V/1.2V is fully specified: supply current remains ≤28µA, reset thresholds retain ±1.5% accuracy, and RST output VOL stays ≤0.3V at ISINK = 100µA - validated in Typical Operating Characteristics plots on pages 5–6.
Is the reset timeout period of MAX6716UTSYD3+T adjustable?
No, the reset timeout period of MAX6716UTSYD3+T is factory-fixed at 210ms (minimum) as indicated by the "D3" suffix in the part number. It cannot be adjusted externally via capacitor or resistor. This value is guaranteed over temperature and supply voltage, with typical value 210ms and maximum 280ms per the Reset Timeout Period table on page 3 of the datasheet.
MAX6716UTSYD3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 2.188V, 2.925V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6716UTSYD3+T FAQ
1.How can I place an order for MAX6716UTSYD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6716UTSYD3+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 MAX6716UTSYD3+T reliable?
The price and inventory of MAX6716UTSYD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6716UTSYD3+T is usually 5 days.
3.What payment methods are accepted for MAX6716UTSYD3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6716UTSYD3+T transactions.
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4.How is shipping managed for MAX6716UTSYD3+T?
MAX6716UTSYD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6716UTSYD3+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 MAX6716UTSYD3+T?
For technical support, including MAX6716UTSYD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6716UTSYD3+T requirements.
6.How does Aetrix verify that MAX6716UTSYD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6716UTSYD3+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 MAX6716UTSYD3+T meets industry standards.
7.What is the process for return or replacement of MAX6716UTSYD3+T?
All MAX6716UTSYD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6716UTSYD3+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 MAX6716UTSYD3+T part is unused and in its original packaging.
Return procedure for MAX6716UTSYD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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