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Analog Devices Inc./Maxim Integrated MAX6716AUTVHD3+
- Part No.:
- MAX6716AUTVHD3+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6716AUTVHD3+.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:608
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Product details
Overview
MAX6716AUTVHD3+ from Maxim Integrated is a dual-voltage microprocessor supervisory IC monitoring VCC1 (primary) and VCC2 (secondary) supply rails with factory-trimmed reset thresholds of 4.625V (VTH1) and 3.075V (VTH2), 210ms minimum reset timeout, push-pull active-low RST output, and operation from -40°C to +125°C in a 6-pin SOT23 package. It ensures reliable system reset during power-up, brownout, or undervoltage events in multivoltage embedded systems.
For engineers reviewing the MAX6716AUTVHD3+ datasheet, MAX6716AUTVHD3+ pinout, MAX6716AUTVHD3+ application, or MAX6716AUTVHD3+ equivalent, key selection criteria include dual-rail voltage monitoring capability, guaranteed reset validity down to VCC = 0.8V, low 14µA typical supply current at 3.6V, immunity to short VCC transients, and compatibility with manual-reset, watchdog, and power-fail signaling functions.
Technical Context
The MAX6716AUTVHD3+ integrates two independent voltage comparators with precision internal references (4.625V ±125mV for VCC1, 3.075V ±75mV for VCC2), a programmable reset timeout timer (210ms min), and push-pull reset output logic referenced to VCC1. It asserts RST low 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 initiation, and guarantees correct reset state with VCC1 or VCC2 ≥ 0.8V. No watchdog or RSTIN/PFI functionality is included - confirmed by suffix "VH" (dual-supply, push-pull RST, no WDI/RSTIN/PFI) per Maxim's Selector Guide and Ordering Information.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Reset Threshold | 4.625V (typ), ±125mV tolerance - sets primary supply brownout detection point for 5V or 4.8V rails |
| VCC2 Reset Threshold | 3.075V (typ), ±75mV tolerance - monitors secondary 3.3V rail with tight margin for stable core voltage supervision |
| Reset Timeout Period | 210ms (min), 280ms (typ) - ensures sufficient hold time for μP initialization and peripheral stabilization |
| Supply Current | 14µA (typ) at 3.6V - enables long battery life in portable equipment without compromising supervision reliability |
| Operating Temperature | -40°C to +125°C - qualified for under-hood automotive, industrial control, and telecom infrastructure applications |
| Reset Output Type | Push-pull, active-low RST - eliminates need for external pullup resistor and provides strong drive into μP reset pin |
| Minimum Valid VCC | 0.8V - guarantees deterministic reset assertion even during deep brownout conditions before full power collapse |
Pinout & Package
MAX6716AUTVHD3+ is housed in a RoHS-compliant 6-pin SOT23 package (2.9mm × 1.6mm × 1.1mm), optimized for space-constrained PCB layouts in high-density systems.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1; asserts low on VCC1/VCC2 undervoltage and holds for 210ms min after recovery |
| 2 | GND | Ground reference for all internal comparators, timers, and output drivers; must be low-impedance connection |
| 3 | MR | Active-low manual-reset input with internal 50kΩ pullup to VCC1; forces reset when pulled low, holds for full timeout after release |
| 4 | VCC2 | Secondary supply input (monitored at 3.075V); powers internal circuitry when VCC2 > VCC1, otherwise VCC1 supplies device |
| 5 | VCC1 | Primary supply input (monitored at 4.625V); main power source and reference for RST output voltage level |
| 6 | NC | No connect - internally unconnected pin; must remain floating or grounded per layout best practices |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous supervision of primary (4.625V) and secondary (3.075V) rails eliminates need for two discrete supervisors |
| Guaranteed reset validity down to 0.8V | Ensures deterministic reset assertion during severe brownout, preventing undefined μP behavior before full power loss |
| Push-pull RST output | Delivers robust low-impedance drive without external pullup, simplifying BOM and improving noise immunity on reset line |
| 210ms minimum reset timeout | Provides ample hold time for complex μP boot sequences, DRAM initialization, and FPGA configuration |
| Low 14µA supply current | Minimizes quiescent power draw in always-on subsystems such as real-time clocks or wake-on-event circuits |
Applications
| Industrial PLC Controller | Automotive ADAS Camera Module |
|---|---|
Use Scenario: Monitors 5V system rail and 3.3V image sensor interface supply in harsh temperature environments. IC Role / Device Role / Timing Role: Dual-rail supervisor ensuring synchronized reset of MCU and image signal processor during cold cranking or load dump. Use Value: Prevents partial initialization and firmware corruption by holding reset until both rails stabilize above 4.625V and 3.075V respectively. |
Use Scenario: Supervises 5V camera power and 3.3V ISP core voltage in rear-view or surround-view camera ECU. IC Role / Device Role / Timing Role: Provides AEC-Q100-aligned supervision with guaranteed operation at -40°C to +125°C junction temperature. Use Value: Enables fail-safe restart after voltage sag during engine start-stop cycles, meeting ISO 16750-2 pulse 4 requirements. |
| Telecom Base Station PSU | Medical Infusion Pump Control Board |
Use Scenario: Validates primary 48V-to-5V DC-DC output and isolated 3.3V logic rail in redundant power architecture. IC Role / Device Role / Timing Role: Dual-supply monitor triggering system-level fault reporting and graceful shutdown via μP interrupt. Use Value: 210ms timeout allows complete power sequencing across multiple DC-DC stages before enabling downstream loads. |
Use Scenario: Ensures safe startup and brownout recovery of ARM Cortex-M4 MCU and motor driver IC in battery-powered infusion pump. IC Role / Device Role / Timing Role: Critical safety component verifying both main and backup supply integrity before actuating peristaltic pump. Use Value: Low 14µA current extends single-charge battery life while maintaining IEC 62304 Class C compliance for reset supervision. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-supply supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6716AUTLTD3+ | Same dual-supply monitoring (4.625V/3.075V), identical package, but 140ms min reset timeout vs. 210ms | Suitable where shorter reset hold time is acceptable (e.g., simpler μP boot with fewer peripherals) | Select MAX6716AUTLTD3+ only if 140ms timeout meets system initialization timing budget |
| TLV809K33DBZR | Single-supply 3.3V supervisor (±2% threshold), SOT23-3, no VCC2 monitoring or manual reset input | Limited to basic 3.3V rail supervision; cannot replace dual-rail function without adding second IC | Use TLV809K33DBZR only in cost-sensitive, single-rail designs where VCC1 supervision is handled separately |
Compared with MAX6716AUTVHD3+, MAX6716AUTLTD3+ offers faster reset release but reduced safety margin for complex boot sequences, while TLV809K33DBZR lacks dual-rail capability entirely - making MAX6716AUTVHD3+ the only drop-in solution for validated dual-supply supervision with 210ms hold time.
Availability
MAX6716AUTVHD3+ is available at Aetrix Electronics and suitable for industrial PLC controllers, automotive ADAS modules, telecom base station PSUs, medical infusion pumps, and set-top box power management requiring stable component supply across extended temperature ranges.
Supply support for MAX6716AUTVHD3+ 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, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.
The MAX6715A–MAX6729A family delivers ultra-low-voltage, dual/triple-supply microprocessor supervisory circuits targeting high-reliability embedded systems where power integrity and deterministic reset behavior are critical.
FAQ
What is the exact reset threshold voltage for VCC1 on the MAX6716AUTVHD3+?
The MAX6716AUTVHD3+ has a factory-trimmed VCC1 reset threshold of 4.625V (typical), with a guaranteed range of 4.500V to 4.750V over temperature and supply variation. This value is fixed by the "VH" suffix per Maxim's Reset Voltage Threshold Suffix Guide and applies specifically to this part number - not inferred from family data.
Does the MAX6716AUTVHD3+ support watchdog timer functionality?
No, the MAX6716AUTVHD3+ does not include watchdog timer functionality. Its suffix "VH" denotes dual-supply monitoring with push-pull RST output and no WDI pin - confirmed by Maxim's Selector Guide and Pin Description table, which shows pin 6 as NC and omits WDI from functional coverage for this variant.
What is the reset timeout period of the MAX6716AUTVHD3+ and how is it set?
The MAX6716AUTVHD3+ has a minimum reset timeout period of 210ms, with typical value of 280ms. This is set by the "D3" suffix in the part number and implemented via internal capacitor-based timing - no external components required. The timeout begins when VCC1 or VCC2 recovers above threshold and holds RST low for the full duration.
Can the MAX6716AUTVHD3+ monitor a third voltage rail?
No, the MAX6716AUTVHD3+ is a dual-supply supervisor only. It monitors VCC1 and VCC2 exclusively. Third-rail monitoring (via RSTIN) is available only on variants with "W", "X", "Y", or "Z" suffixes (e.g., MAX6719A series), not on the "VH"-suffixed MAX6716AUTVHD3+.
What package type and pin count does the MAX6716AUTVHD3+ use?
The MAX6716AUTVHD3+ uses a 6-pin SOT23 package (SOT23-6), measuring 2.9mm × 1.6mm × 1.1mm. Pin 6 is NC (no connect), and the functional pins are RST (1), GND (2), MR (3), VCC2 (4), VCC1 (5), with no WDI, PFI, PFO, or RSTIN connections present on this variant.
MAX6716AUTVHD3+ 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+ FAQ
1.How can I place an order for MAX6716AUTVHD3+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6716AUTVHD3+ 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+ reliable?
The price and inventory of MAX6716AUTVHD3+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6716AUTVHD3+ is usually 5 days.
3.What payment methods are accepted for MAX6716AUTVHD3+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6716AUTVHD3+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6716AUTVHD3+?
MAX6716AUTVHD3+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6716AUTVHD3+ 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+?
For technical support, including MAX6716AUTVHD3+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6716AUTVHD3+ requirements.
6.How does Aetrix verify that MAX6716AUTVHD3+ is sourced from the original manufacturer or authorized distributors?
All MAX6716AUTVHD3+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX6716AUTVHD3+?
All MAX6716AUTVHD3+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6716AUTVHD3+, 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+ part is unused and in its original packaging.
Return procedure for MAX6716AUTVHD3+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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