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Analog Devices Inc./Maxim Integrated MAX6716UTYDD3+
- Part No.:
- MAX6716UTYDD3+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6716UTYDD3+.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:732
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Product details
Overview
MAX6716UTYDD3+ from Maxim Integrated is a dual-voltage microprocessor supervisory circuit in 6-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 server board management.
For engineers reviewing the MAX6716UTYDD3+ datasheet, MAX6716UTYDD3+ pinout, MAX6716UTYDD3+ application, or MAX6716UTYDD3+ equivalent, key selection criteria include dual-supply monitoring accuracy, push-pull reset drive capability, 210ms timeout compliance, and operation across -40°C to +85°C industrial temperature range.
Technical Context
The MAX6716UTYDD3+ integrates two independent voltage comparators with factory-trimmed thresholds (VTH1 = 4.625V, VTH2 = 3.075V), a reset timeout timer (210ms min), 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.
It features an internal 50kΩ pullup on MR, supports manual reset pulse widths ≥1µs, and guarantees correct reset logic state with VCC1 or VCC2 ≥ 0.8V - enabling reliable brownout detection in low-voltage multirail systems without external biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.625V (factory-trimmed falling threshold; ensures precise 5V rail monitoring) |
| VCC2 Threshold | 3.075V (factory-trimmed falling threshold; matches common 3.3V I/O rail) |
| Reset Timeout | 210ms (minimum duration; satisfies processor power-up stabilization requirements) |
| Supply Current | 14µA typical at 3.6V (ultra-low quiescent current enables battery-backed system use) |
| Operating Temp | -40°C to +85°C (industrial-grade thermal range for telecom and embedded equipment) |
| Reset Output Type | Push-pull active-low (drives high/low directly; eliminates need for external pullup resistor) |
| MR Input | Active-low with 50kΩ internal pullup to VCC1 (supports direct switch-to-GND interface without external components) |
Pinout & Package
Package: 6-pin SOT23-6, surface-mount, 1.6mm × 2.9mm footprint, 1.1mm height.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output; sinks 3.2mA at VCC1 ≥ 4.5V; drives high to 0.8×VCC1 when deasserted |
| 2 | GND | Ground reference for all internal comparators, timers, and output drivers |
| 3 | MR | Active-low manual reset input; internally pulled up to VCC1 (50kΩ); accepts TTL/CMOS logic levels |
| 4 | VCC2 | Secondary supply input; powers internal VCC2 comparator and sets RST2 reference (not used in MAX6716) |
| 5 | VCC1 | Primary supply input; powers device core, sets RST output reference, and feeds primary comparator |
| 6 | NC | No connect; unused pin per MAX6716 functional configuration (no RSTIN, WDI, PFI, or PFO) |
Key Features
| Feature | Design Value |
|---|---|
| Dual factory-trimmed thresholds | VTH1 = 4.625V, VTH2 = 3.075V - eliminates external resistor networks for standard 5V/3.3V rails |
| Push-pull RST output | Direct-drive capability avoids external pullup, reduces BOM count, and improves noise immunity vs open-drain |
| 210ms reset timeout | Guaranteed minimum delay ensures µP reset hold time meets Intel/AMD/ARM boot specification requirements |
| 0.8V valid-reset guarantee | Operates correctly even as VCC1 or VCC2 drops to 0.8V - critical for detecting deep brownouts before complete failure |
| 14µA supply current | Enables integration into always-on subsystems (e.g., RTC, wake-on-LAN) without impacting standby power budget |
Applications
| Telecom Power Sequencing | Server Board Management |
|---|---|
Use Scenario: Monitoring 5V and 3.3V rails in line-card power supplies where out-of-spec voltage must trigger immediate processor halt and fault logging. IC Role / Device Role / Timing Role: Dual-rail supervisor asserting push-pull RST to halt ARM-based control processor within 20µs of threshold violation. Use Value: Prevents corrupted firmware writes during undervoltage by enforcing 210ms reset hold, matching FPGA configuration timing windows. | Use Scenario: Ensuring clean boot of x86 server baseboard management controller (BMC) after AC power restoration. IC Role / Device Role / Timing Role: Primary supervisor for BMC VCC1 (5V) and auxiliary VCC2 (3.3V), coordinating with PMIC via MR input for controlled power-up sequence. Use Value: Push-pull RST eliminates external pullup, reducing layout area on dense BMC PCBs while maintaining <100ns timing margin. |
| Industrial PLC Controller | Network Switch ASIC Power-Up |
Use Scenario: Protecting programmable logic controller CPU during factory floor voltage sags caused by motor startups. IC Role / Device Role / Timing Role: Dual-supply monitor asserting reset when either 5V logic rail or 3.3V I/O rail dips below threshold, with MR tied to emergency stop circuit. Use Value: Guaranteed reset validity down to 0.8V prevents spurious resets during brief transients, improving machine uptime. | Use Scenario: Validating stable 5V and 3.3V supplies before releasing reset to multi-core network switch ASIC. IC Role / Device Role / Timing Role: Supervisor providing 210ms reset assertion window to meet ASIC vendor's tRSTH requirement for PLL lock and memory initialization. Use Value: Factory-trimmed thresholds eliminate calibration overhead in high-volume switch manufacturing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6715UTYDD3+ | Open-drain RST output; requires external pullup resistor; identical thresholds and timeout | Suitable where reset signal must be shared across multiple voltage domains via wired-OR | Select when system-level reset bus architecture mandates open-drain drive |
| TPS3808G33DBVR | Single-supply monitor (3.3V only); no VCC2 input; 200ms timeout; different pinout and enable logic | Limited to single-rail applications; lacks dual-threshold flexibility | Choose only if monitoring only one rail and footprint compatibility allows SOT23-6 reuse |
Compared with MAX6716UTYDD3+, MAX6715UTYDD3+ offers identical supervision functionality but requires external pullup due to open-drain RST, while TPS3808G33DBVR provides lower-cost single-rail monitoring at the expense of dual-voltage capability and pin compatibility.
Availability
MAX6716UTYDD3+ is available at Aetrix Electronics and suitable for telecom power sequencing, server board management, and industrial PLC controller designs requiring stable component supply with guaranteed long-term availability.
Supply support for MAX6716UTYDD3+ 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 connectivity applications, with focus on high-reliability industrial and communications markets.
The MAX6715–MAX6729 family delivers ultra-low-voltage dual/triple supervisory circuits optimized for multirail embedded systems requiring accurate, low-power, and temperature-stable reset generation across -40°C to +85°C.
FAQ
What is the exact reset threshold voltage for VCC1 on the MAX6716UTYDD3+?
The MAX6716UTYDD3+ has a factory-trimmed VCC1 reset threshold of 4.625V (typical falling threshold), with tolerance of ±125mV (4.500V to 4.750V) over temperature. This value is fixed by the "YD" suffix in the part number and applies to all units without external adjustment.
Does the MAX6716UTYDD3+ support monitoring a third voltage rail?
No, the MAX6716UTYDD3+ is a dual-voltage supervisor only. It monitors VCC1 and VCC2 exclusively. The RSTIN, WDI, PFI, and PFO pins are not implemented in this variant - confirmed by the Selector Guide and Pin Configuration table showing pin 6 as NC and no RSTIN/PFI/WDI functions enabled.
What is the function of pin 6 on the MAX6716UTYDD3+?
Pin 6 on the MAX6716UTYDD3+ is a no-connect (NC) terminal. It is unused and must remain unconnected per the official datasheet Pin Description table, which lists it as NC for MAX6716 and confirms absence of RSTIN, WDI, PFI, or PFO functionality in this part number.
Can the MAX6716UTYDD3+ operate with VCC1 = 1.8V?
No. The MAX6716UTYDD3+ requires VCC1 ≥ 2.7V to guarantee full specification compliance, including RST output drive strength (≥500µA) and reset threshold accuracy. While the device may power up at 1.8V, the 4.625V threshold cannot be met - making it unsuitable for sub-2.7V primary rails.
Is the reset timeout period of the MAX6716UTYDD3+ adjustable?
No, the reset timeout period is factory-set and non-adjustable. The "D3" suffix in MAX6716UTYDD3+ specifies a 210ms minimum timeout period, fixed by internal capacitor trimming. No external RC network or register setting can modify this value.
MAX6716UTYDD3+ 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:
- 0.788V, 2.188V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6716UTYDD3+ FAQ
1.How can I place an order for MAX6716UTYDD3+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6716UTYDD3+ 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 MAX6716UTYDD3+ reliable?
The price and inventory of MAX6716UTYDD3+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6716UTYDD3+ is usually 5 days.
3.What payment methods are accepted for MAX6716UTYDD3+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6716UTYDD3+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6716UTYDD3+?
MAX6716UTYDD3+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6716UTYDD3+ 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 MAX6716UTYDD3+?
For technical support, including MAX6716UTYDD3+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6716UTYDD3+ requirements.
6.How does Aetrix verify that MAX6716UTYDD3+ is sourced from the original manufacturer or authorized distributors?
All MAX6716UTYDD3+ 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 MAX6716UTYDD3+ meets industry standards.
7.What is the process for return or replacement of MAX6716UTYDD3+?
All MAX6716UTYDD3+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6716UTYDD3+, 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 MAX6716UTYDD3+ part is unused and in its original packaging.
Return procedure for MAX6716UTYDD3+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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