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Analog Devices Inc./Maxim Integrated MAX6716AUTVHD3+T
- Part No.:
- MAX6716AUTVHD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6716AUTVHD3+T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:7,500
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Product details
Overview
MAX6716AUTVHD3+T from Maxim Integrated is a dual-supply ultra-low-voltage microprocessor supervisory IC that monitors VCC1 (primary) and VCC2 (secondary) supply rails, asserts active-low push-pull reset when either falls below factory-trimmed thresholds (4.625V typical for VCC1, 3.075V for VCC2), maintains reset for 140ms minimum timeout, and operates from -40°C to +125°C in SOT23-6 package - used in telecom power sequencing and industrial controller brownout protection.
For engineers reviewing the MAX6716AUTVHD3+T datasheet, MAX6716AUTVHD3+T pinout, MAX6716AUTVHD3+T application, or MAX6716AUTVHD3+T equivalent, key selection criteria include guaranteed reset validity down to VCC1/VCC2 = 0.8V, 14µA typical supply current at 3.6V, push-pull RST output referenced to VCC1, and immunity to sub-20µs VCC transients.
Technical Context
The MAX6716AUTVHD3+T implements dual independent voltage comparators with internal 4.625V (VTH1) and 3.075V (VTH2) factory-trimmed reset thresholds, hysteresis of 0.5% of threshold, and 20µs VCC-to-reset propagation delay. It features a dedicated MR input with 50kΩ internal pullup and 200ns MR-to-reset delay.
This variant belongs to the MAX6715A–MAX6729A family and excludes RSTIN, WDI, PFI/PFO, and RST2 functions - confirmed by its "V" reset threshold suffix (VCC1 = 4.625V) and "H" timeout suffix (140ms), packaged in 6-pin SOT23 (U6+1 code) with push-pull RST output referenced to VCC1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Reset Threshold | 4.625V (factory-trimmed, ±125mV tolerance) - ensures reliable reset assertion on 5V rail brownout |
| VCC2 Reset Threshold | 3.075V (factory-trimmed, ±75mV tolerance) - matches common 3.3V I/O supply monitoring |
| Reset Timeout Period | 140ms (min) - provides sufficient hold time for microprocessor initialization after power recovery |
| Supply Current | 14µA (typ at 3.6V) - enables battery-backed systems to maintain supervision >10 years on coin cell |
| Operating Temperature | -40°C to +125°C - qualified for under-hood automotive and industrial control environments |
| Reset Output Type | Active-low push-pull - eliminates need for external pullup resistor; drives directly into µP reset pin |
| Minimum Valid VCC | 0.8V - guarantees correct reset logic state during deep brownout conditions before full power collapse |
Pinout & Package
MAX6716AUTVHD3+T is housed in a 6-pin SOT23 package (package code U6+1, outline 21-0058), with 1.27mm pitch, 2.9mm × 1.6mm footprint, and thermal resistance θJA = 115°C/W on multilayer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1; asserts low on VCC1/VCC2 undervoltage or MR low |
| 2 | GND | System ground reference for all internal comparators and reset timing circuitry |
| 3 | MR | Active-low manual-reset input with 50kΩ internal pullup to VCC1; 1µs minimum pulse width required |
| 4 | VCC2 | Secondary supply input (0.8V–5.5V); powers internal VCC2 comparator and sets RST2 reference if present (not implemented in this variant) |
| 5 | VCC1 | Primary supply input (0.8V–5.5V); powers device core, sets RST output reference, and enables MR pullup |
| 6 | NC | No connect - pin 6 is unconnected internally and must be left floating or tied to GND per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent supply monitoring | Simultaneous VCC1 (5V domain) and VCC2 (3.3V domain) supervision with separate thresholds and hysteresis |
| Guaranteed reset validity at low VCC | Correct RST logic state maintained even when VCC1 or VCC2 drops to 0.8V - critical for graceful shutdown |
| Low quiescent current | 14µA typical supply draw enables multi-year operation in energy-constrained applications like smart sensors |
| Push-pull reset output | Eliminates external pullup resistor, reduces BOM count, and ensures fast rise/fall times without RC delays |
| Immunity to short VCC transients | Withstands ≤20µs negative-going glitches without spurious reset - avoids false triggers in noisy power environments |
Applications
| Telecom Power Sequencing | Industrial PLC Controller |
|---|---|
Use Scenario: Monitoring primary 5V and secondary 3.3V rails in line-card power management subsystems where out-of-sequence power-up can damage FPGAs or SerDes. IC Role / Device Role / Timing Role: Dual-rail supervisor enforcing strict power-good sequencing and asserting reset until both supplies stabilize above thresholds. Use Value: Prevents configuration corruption in FPGA-based telecom hardware by holding reset for 140ms minimum after both VCC1 and VCC2 exceed 4.625V and 3.075V respectively. |
Use Scenario: Embedded controller in programmable logic controller (PLC) requiring deterministic restart after AC/DC converter brownout. IC Role / Device Role / Timing Role: Brownout detector with manual-reset capability for field technician intervention during maintenance. Use Value: Guarantees reset remains asserted down to 0.8V on either rail - enabling safe state capture before complete power loss in harsh industrial environments. |
| Automotive Body Control Module | Medical Diagnostic Equipment |
Use Scenario: Supervising 5V microcontroller supply and 3.3V CAN transceiver supply in AEC-Q100-compliant body electronics. IC Role / Device Role / Timing Role: Dual-supply watchdog-enabling supervisor ensuring MCU reset during battery voltage sag below 9V. Use Value: Operates across -40°C to +125°C ambient and draws only 14µA - extending battery life in always-on vehicle modules. |
Use Scenario: Power integrity monitoring in portable ultrasound or patient monitor where firmware crash must trigger immediate hardware reset. IC Role / Device Role / Timing Role: Fail-safe reset generator with MR input for clinical staff-initiated reboot without cycling main power. Use Value: 200ns MR-to-reset delay and 50kΩ internal MR pullup eliminate need for external components - reducing risk of contamination in sealed medical enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-supply supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6715AUTVHD3+T | Same SOT23-6 package and 140ms timeout, but VCC1 threshold = 4.375V (M-suffix) instead of 4.625V (V-suffix) | Suitable for systems with tighter 5V rail tolerance where 4.375V trip point better aligns with regulator dropout | Select MAX6715AUTVHD3+T when primary supply nominal is 4.75V–5.0V and margin to 4.375V is preferred over 4.625V |
| TLV809E33DBZR | Single-supply 3.3V supervisor (SOT23-3), no VCC2 monitoring, 200ms timeout, open-drain RST | Requires separate IC for 5V rail supervision; lacks MR input and push-pull drive | Choose TLV809E33DBZR only for cost-sensitive single-rail designs where dual monitoring is unnecessary |
Compared with MAX6716AUTVHD3+T, MAX6715AUTVHD3+T offers lower VCC1 trip voltage for tighter 5V regulation margins, while TLV809E33DBZR sacrifices dual-rail capability and push-pull drive to reduce footprint and cost - making MAX6716AUTVHD3+T optimal for space-constrained dual-rail systems needing robust reset assertion.
Availability
MAX6716AUTVHD3+T is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and automotive body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6716AUTVHD3+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 emphasis on high-reliability industrial and automotive solutions.
The MAX6715A–MAX6729A product line delivers ultra-low-voltage dual/triple-supply supervisors optimized for multirail embedded systems where power integrity, small footprint, and extended temperature operation are critical.
FAQ
What is the exact reset threshold voltage for VCC1 on MAX6716AUTVHD3+T?
The MAX6716AUTVHD3+T has a factory-trimmed VCC1 reset threshold of 4.625V (typical), with ±125mV tolerance (4.500V to 4.750V) over temperature. This value is fixed by the "V" suffix in the part number and applies specifically to the MAX6716AUTVHD3+T variant - not adjustable and not shared with other members of the MAX6715A–MAX6729A family.
Does MAX6716AUTVHD3+T support monitoring a third voltage rail?
No, MAX6716AUTVHD3+T does not support third-rail monitoring. It is a dual-supply supervisor only, with dedicated VCC1 and VCC2 inputs. The RSTIN, PFI, WDI, and RST2 pins are not implemented in this variant - confirmed by its pinout (6-pin SOT23 with NC on pin 6) and absence of RSTIN/PFI functionality in the datasheet selector guide for "VH"-suffixed parts.
What is the function of pin 6 on MAX6716AUTVHD3+T?
Pin 6 on MAX6716AUTVHD3+T is a no-connect (NC) terminal - it is not bonded internally and serves no electrical function. Per Maxim's layout guidance, pin 6 should be left floating or tied to GND to improve thermal dissipation and mechanical stability; it must never be connected to VCC or signal lines.
Can MAX6716AUTVHD3+T operate with VCC1 = 3.3V?
Yes, MAX6716AUTVHD3+T operates with VCC1 from 0.8V to 5.5V, including 3.3V. However, at 3.3V, the 4.625V VCC1 reset threshold cannot be met - meaning the VCC1 comparator will remain asserted (RST low) continuously. For 3.3V primary rails, select a variant with lower VTH1 (e.g., "T" = 3.075V or "S" = 2.925V suffix) instead of MAX6716AUTVHD3+T.
Is MAX6716AUTVHD3+T qualified for automotive applications?
MAX6716AUTVHD3+T itself is not AEC-Q100 qualified; only specific variants like MAX6719AUTTWD1/V+T carry that qualification. However, MAX6716AUTVHD3+T shares the same process, design, and -40°C to +125°C operating range, and is widely deployed in automotive body electronics where full AEC-Q100 certification is not mandated - subject to customer qualification.
MAX6716AUTVHD3+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:
- 1.313V, 1.575V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6716AUTVHD3+T FAQ
1.How can I place an order for MAX6716AUTVHD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6716AUTVHD3+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 MAX6716AUTVHD3+T reliable?
The price and inventory of MAX6716AUTVHD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6716AUTVHD3+T is usually 5 days.
3.What payment methods are accepted for MAX6716AUTVHD3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6716AUTVHD3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6716AUTVHD3+T?
MAX6716AUTVHD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6716AUTVHD3+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 MAX6716AUTVHD3+T?
For technical support, including MAX6716AUTVHD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6716AUTVHD3+T requirements.
6.How does Aetrix verify that MAX6716AUTVHD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6716AUTVHD3+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 MAX6716AUTVHD3+T meets industry standards.
7.What is the process for return or replacement of MAX6716AUTVHD3+T?
All MAX6716AUTVHD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6716AUTVHD3+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 MAX6716AUTVHD3+T part is unused and in its original packaging.
Return procedure for MAX6716AUTVHD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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