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Analog Devices Inc./Maxim Integrated MAX6716UTVDD3+T
- Part No.:
- MAX6716UTVDD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- -
- Datasheet:
-
MAX6716UTVDD3+T.pdf
- Description:
- IC SUPERVISOR MPU SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
MAX6716UTVDD3+T from Maxim Integrated is a dual-voltage microprocessor supervisory IC 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 MAX6716UTVDD3+T datasheet, MAX6716UTVDD3+T pinout, MAX6716UTVDD3+T application, or MAX6716UTVDD3+T equivalent, key selection criteria include dual-supply threshold accuracy (±1.5% over temp), ultra-low 14µA supply current at 3.6V, immunity to sub-20µs VCC transients, and push-pull reset drive capability without external pullup.
Technical Context
This device implements two independent voltage comparators with factory-trimmed thresholds (VTH1 = 4.625V, VTH2 = 3.075V), a digital reset timeout timer (210ms min), and integrated MR input with 50kΩ internal pullup to VCC1. It asserts RST low when either supply falls below its threshold and holds reset for the full timeout after recovery.
The push-pull RST output is referenced to VCC1 and drives high to ≥0.8×VCC1 (500µA sink), eliminating need for external pullup. Reset logic remains valid even as VCC1 or VCC2 drops to 0.8V, enabling reliable brownout detection in low-voltage systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.625V (factory-trimmed, ±1.5% over -40°C to +85°C) - sets primary supply fault detection point for 5V/4.8V rails |
| VCC2 Threshold | 3.075V (factory-trimmed, ±1.5% over -40°C to +85°C) - monitors secondary 3.3V rail with guaranteed operation down to 0.8V supply |
| Reset Timeout | 210ms (minimum) - ensures sufficient hold time for processor initialization and peripheral stabilization |
| Supply Current | 14µA typical at 3.6V - enables use in battery-backed or always-on monitoring circuits without significant power penalty |
| RST Output Type | Push-pull active-low - provides direct TTL/CMOS-compatible reset drive without external pullup resistor |
| MR Input | Active-low with 50kΩ internal pullup to VCC1 - supports momentary switch interface with no external components required |
| Operating Temp | -40°C to +85°C - qualified for industrial and telecom equipment environments |
Pinout & Package
MAX6716UTVDD3+T is housed in a 6-pin SOT23-6 package (2.9mm × 1.6mm × 1.1mm), RoHS-compliant and lead-free (+T suffix). Pin 1 is marked with dot; pin numbering follows standard SOT23 counterclockwise orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1; sinks up to 3.2mA at VCC1 ≥ 4.5V |
| 2 | GND | System ground reference for all internal comparators and logic |
| 3 | MR | Active-low manual reset input with 50kΩ internal pullup to VCC1; 1µs minimum pulse width required |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V range); powers internal VCC2 comparator and sets RST2 reference if present |
| 5 | VCC1 | Primary supply input (1.8V–5.0V range); powers device core and sets RST output reference |
| 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 supervision of VCC1 and VCC2 with separate factory-trimmed thresholds avoids cascaded failure modes in multirail systems |
| Guaranteed reset validity to 0.8V | Ensures deterministic reset assertion even during deep brownout conditions where VCC1 or VCC2 collapses below 1.0V |
| Push-pull RST output | Eliminates need for external pullup resistor and reduces BOM count while providing robust drive into heavy capacitive loads |
| Immunity to short VCC transients | Rejects glitches <20µs duration (at 100mV overdrive), preventing spurious resets during switching noise or load transients |
| Low 14µA supply current | Enables continuous monitoring in energy-constrained applications such as battery-backed real-time clocks or standby supervisors |
Applications
| Telecom Line Card Power Sequencing | Server Baseboard Management |
|---|---|
Use Scenario: Monitoring 48V-to-12V DC/DC converter output and 3.3V LDO output on a line card with strict power-up order requirements. IC Role / Device Role / Timing Role: Dual-supply supervisor enforcing correct voltage ramp sequence and asserting system reset until both rails stabilize. Use Value: Prevents FPGA configuration corruption by holding reset until both 12V and 3.3V are within ±3% tolerance for ≥210ms. |
Use Scenario: Supervising main 5V and auxiliary 3.3V supplies on a server motherboard with BMC watchdog integration. IC Role / Device Role / Timing Role: Primary voltage monitor feeding reset signal to BMC and CPU; MR input enables hardware-initiated graceful shutdown. Use Value: Enables field-serviceable reset via front-panel button without software intervention, with guaranteed timing margin for BMC firmware boot. |
| Industrial PLC I/O Module | Network Switch ASIC Power Domain |
Use Scenario: Ensuring clean startup of isolated 24V and 5V rails powering analog I/O and microcontroller in harsh EMI environments. IC Role / Device Role / Timing Role: Brownout detector with transient immunity, asserting reset during AC line sags or motor switching noise. Use Value: Maintains functional safety integrity by rejecting sub-20µs transients while reliably triggering reset on sustained undervoltage events. |
Use Scenario: Coordinating power-good sequencing between ASIC core (0.85V), I/O (1.2V), and auxiliary (3.3V) domains in a 10G switch. IC Role / Device Role / Timing Role: Secondary supervisor verifying final-stage regulator outputs before releasing ASIC reset. Use Value: Provides 210ms hold time to absorb regulator settling delay and prevent metastability in high-speed SerDes initialization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6715UTVDD3+T | Open-drain RST output (vs. push-pull); identical thresholds and timeout | Requires external pullup resistor; suitable where level-shifting or wired-OR reset bus is needed | Select when interfacing to bidirectional µP reset pins or sharing reset line across multiple devices |
| TPS3808G33DBVR | Single-supply monitor (3.3V only); 200ms timeout; 2.5µA quiescent current | Lacks VCC2 monitoring; no MR input; smaller 5-pin SOT23 package | Choose for cost-sensitive single-rail applications where secondary supply supervision is unnecessary |
Compared with MAX6715UTVDD3+T, the MAX6716UTVDD3+T eliminates external pullup dependency and simplifies layout, while TPS3808G33DBVR trades dual-monitoring capability for lower power and smaller footprint in single-supply designs.
Availability
MAX6716UTVDD3+T is available at Aetrix Electronics and suitable for telecom line cards, server baseboard management, industrial PLC modules, and network switch ASIC power domains requiring stable component supply with guaranteed long-term availability.
Supply support for MAX6716UTVDD3+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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing markets.
The MAX6715–MAX6729 family was designed specifically for ultra-low-voltage, space-constrained multirail systems requiring precise dual/three-supply monitoring with minimal quiescent current and robust transient immunity.
FAQ
What are the exact reset threshold voltages for MAX6716UTVDD3+T?
The MAX6716UTVDD3+T has factory-trimmed reset thresholds of 4.625V for VCC1 (primary supply) and 3.075V for VCC2 (secondary supply), with ±1.5% tolerance over the full -40°C to +85°C operating temperature range. These values are fixed by the "VD" suffix in the part number and do not require external resistor programming.
Does MAX6716UTVDD3+T support manual reset functionality?
Yes, MAX6716UTVDD3+T includes an active-low manual reset (MR) input on pin 3 with an internal 50kΩ pullup resistor to VCC1. Driving MR low for ≥1µs forces an immediate reset assertion, which remains active for the full 210ms timeout period after MR returns high.
What is the reset output configuration of MAX6716UTVDD3+T?
MAX6716UTVDD3+T features a push-pull active-low RST output on pin 1, referenced to VCC1. It drives high to ≥0.8×VCC1 (500µA source) and low to ≤0.4V (3.2mA sink at VCC1 ≥ 4.5V), eliminating the need for an external pullup resistor.
Can MAX6716UTVDD3+T operate reliably during deep brownout conditions?
Yes, MAX6716UTVDD3+T guarantees valid reset output logic state as long as either VCC1 or VCC2 remains above 0.8V. This ensures deterministic reset assertion even when one supply collapses significantly, a critical feature for fail-safe system behavior.
What package type and dimensions does MAX6716UTVDD3+T use?
MAX6716UTVDD3+T is supplied in a RoHS-compliant, lead-free 6-pin SOT23-6 package measuring 2.9mm × 1.6mm × 1.1mm. Pin 1 is marked with a dot; pin numbering follows standard SOT23 counterclockwise orientation starting from the dot.
MAX6716UTVDD3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- 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:
- -
MAX6716UTVDD3+T FAQ
1.How can I place an order for MAX6716UTVDD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6716UTVDD3+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 MAX6716UTVDD3+T reliable?
The price and inventory of MAX6716UTVDD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6716UTVDD3+T is usually 5 days.
3.What payment methods are accepted for MAX6716UTVDD3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6716UTVDD3+T transactions.
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4.How is shipping managed for MAX6716UTVDD3+T?
MAX6716UTVDD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6716UTVDD3+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 MAX6716UTVDD3+T?
For technical support, including MAX6716UTVDD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6716UTVDD3+T requirements.
6.How does Aetrix verify that MAX6716UTVDD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6716UTVDD3+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 MAX6716UTVDD3+T meets industry standards.
7.What is the process for return or replacement of MAX6716UTVDD3+T?
All MAX6716UTVDD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6716UTVDD3+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 MAX6716UTVDD3+T part is unused and in its original packaging.
Return procedure for MAX6716UTVDD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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