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Analog Devices Inc./Maxim Integrated MAX6716UTZGD3
- Part No.:
- MAX6716UTZGD3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6716UTZGD3.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,901
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Product details
Overview
MAX6716UTZGD3 from Maxim Integrated is a dual-voltage microprocessor supervisory IC monitoring VCC1 (4.625V threshold) and VCC2 (3.075V threshold) with 210ms reset timeout, push-pull active-low RST output, and guaranteed reset validity down to VCC1 or VCC2 = 0.8V - used in telecom power sequencing and industrial CPU board power integrity management.
For engineers reviewing the MAX6716UTZGD3 datasheet, MAX6716UTZGD3 pinout, MAX6716UTZGD3 application, or MAX6716UTZGD3 equivalent, key selection criteria include factory-trimmed dual-threshold accuracy, SOT23-6 package footprint compatibility, watchdog disable capability via floating WDI, and immunity to sub-20µs VCC transients.
Technical Context
This device implements dual independent voltage comparators with hysteresis (0.5% typical), internal 626mV reference for RSTIN monitoring (not used in MAX6716UTZGD3), and a digital timeout counter triggered on any threshold violation. Reset assertion is synchronized to VCC1 supply domain and maintained for precisely 210ms (typ) after all monitored rails recover.
The push-pull RST output is referenced to VCC1, delivers VOL ≤ 0.4V at 3.2mA sink, and supports VOH ≥ 0.8×VCC1 with 800µA source capability - enabling direct interface to 1.8V–5.0V µP reset inputs without external pullups.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.625V (factory-trimmed, ±1.5% tolerance) - ensures reliable reset assertion during 5V rail brownout |
| VCC2 Threshold | 3.075V (factory-trimmed, ±1.5% tolerance) - matches standard 3.3V I/O supply monitoring requirement |
| Reset Timeout | 210ms (typical) - provides sufficient hold time for FPGA configuration and DRAM initialization sequences |
| Supply Current | 14µA (typ at 3.6V) - enables battery-backed operation in portable equipment with >10-year shelf life |
| Operating Temp | -40°C to +125°C - qualified for under-hood automotive and industrial control cabinet deployment |
| Reset Propagation | 20µs (VCC1/VCC2 transition to RST assertion) - meets fast-fail response requirements in safety-critical systems |
| Output Type | Push-pull active-low RST - eliminates need for external pullup resistor, reduces BOM count and layout area |
Pinout & Package
MAX6716UTZGD3 is housed in a RoHS-compliant 6-pin SOT23 package (2.9mm × 1.6mm × 1.1mm), optimized for high-density PCB layouts in space-constrained applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RST | Active-low reset output | Push-pull driver referenced to VCC1; asserts low on any threshold violation and holds for 210ms |
| 2 - GND | Ground reference | Common return path for all internal comparators and logic; requires low-impedance connection to system ground plane |
| 3 - MR | Manual-reset input | Active-low CMOS-compatible input with 50kΩ internal pullup to VCC1; debounced by 200ns glitch rejection |
| 4 - VCC2 | Secondary supply input | Powers internal VCC2 comparator and sets 3.075V reset threshold; must be ≥ 0.8V for valid reset operation |
| 5 - VCC1 | Primary supply input | Powers core logic and sets 4.625V reset threshold; supplies push-pull RST output stage |
| 6 - WDI | Watchdog input | CMOS-level input; left floating to disable watchdog; edge-sensitive with 50ns minimum pulse width |
Key Features
| Feature | Design Value |
|---|---|
| Dual factory-trimmed thresholds | Eliminates external resistor networks for VCC1/VCC2 monitoring - reduces component count and calibration effort |
| Guaranteed reset validity to 0.8V | Ensures deterministic reset behavior during deep brownout conditions where other supervisors fail silently |
| Push-pull RST output | Removes dependency on external pullup resistors - improves noise immunity and simplifies routing on dense boards |
| 210ms fixed timeout | Matches industry-standard boot timing for ARM Cortex-M and RISC-V microcontrollers with external flash |
| Watchdog disable by floating WDI | Enables single-BOM strategy across designs requiring and omitting watchdog functionality - no hardware change needed |
Applications
| Telecom Line Card Power Monitoring | Industrial PLC CPU Board |
|---|---|
Use Scenario: Monitors +5V (VCC1) and +3.3V (VCC2) rails on carrier-grade line cards during hot-swap insertion and AC mains interruption. IC Role / Device Role / Timing Role: Dual-rail supervisor asserting reset within 20µs of VCC1 drop below 4.625V or VCC2 drop below 3.075V, holding for 210ms to prevent partial initialization. Use Value: Prevents firmware corruption during transient power faults - eliminates field returns due to unclean reboots in central office environments. | Use Scenario: Ensures deterministic startup of ARM-based PLC controllers after 24VDC input fluctuations in factory automation cabinets. IC Role / Device Role / Timing Role: Primary supervisor for main processor supply chain; coordinates reset timing between FPGA, ADC, and communication peripherals. Use Value: Guarantees reset remains valid down to 0.8V - critical for maintaining safe state during undervoltage lockout transitions in harsh EMI environments. |
| Medical Imaging Power Sequencing | Battery-Powered Data Logger |
Use Scenario: Controls power-up sequence of X-ray detector ASICs and analog front-ends requiring strict voltage ramp order and timing. IC Role / Device Role / Timing Role: Dual-threshold monitor enforcing VCC2 (3.075V) stabilization before releasing VCC1 (4.625V) reset to downstream logic. Use Value: Prevents latch-up in high-precision analog circuits by ensuring clean, sequenced power application - meets IEC 62304 Class C requirements. | Use Scenario: Maintains system integrity in lithium-thionyl chloride-powered remote sensors operating for 15+ years without maintenance. IC Role / Device Role / Timing Role: Ultra-low-current (14µA typ) supervisor enabling long-term storage mode while preserving reset reliability during cold temperature excursions. Use Value: Extends battery service life beyond 10 years - validated over -40°C to +85°C operating range with no reset glitches. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3808G33DBVR | 3.3V fixed VDD threshold only; no VCC2 monitoring; 200ms timeout; open-drain RST | Requires external resistor divider for secondary rail monitoring; needs pullup resistor | Select when only single-rail supervision is required and board space allows for external components |
| ADM6716AKSZ-REEL7 | 4.63V/3.08V thresholds; 200ms timeout; push-pull RST; same SOT23-6 package | Nearly identical electrical specs but lacks WDI pin - no watchdog capability | Choose when watchdog functionality is unnecessary and Maxim second-sourcing is preferred |
Compared with TPS3808G33DBVR and ADM6716AKSZ-REEL7, MAX6716UTZGD3 uniquely integrates dual factory-trimmed thresholds with push-pull output and watchdog disable-by-float - reducing design complexity for multi-rail systems requiring both reliability and flexibility.
Availability
MAX6716UTZGD3 is available at Aetrix Electronics and suitable for telecom infrastructure, industrial PLCs, medical imaging subsystems, and battery-powered data loggers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6716UTZGD3 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 demanding industrial, automotive, and communications applications.
The MAX6715A–MAX6729A family delivers ultra-low-voltage supervisory functions targeting systems with tight power budgets and multi-rail architectures - emphasizing factory-trimmed accuracy, wide temperature operation, and minimal external component count.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on MAX6716UTZGD3?
The MAX6716UTZGD3 has factory-trimmed reset thresholds of 4.625V for VCC1 and 3.075V for VCC2, with ±1.5% tolerance over -40°C to +125°C. These values are encoded in the "TZ" suffix per Maxim's Reset Voltage Threshold Suffix Guide and do not require external resistor calibration.
Does MAX6716UTZGD3 support watchdog functionality, and how is it configured?
Yes, MAX6716UTZGD3 includes a watchdog timer with 35s startup period and 1.12s normal timeout. It is enabled by driving the WDI pin with periodic edges; leaving WDI floating disables the watchdog entirely - a key design flexibility not requiring hardware modification.
What is the reset timeout duration for MAX6716UTZGD3, and is it adjustable?
The MAX6716UTZGD3 features a fixed 210ms (typical) reset timeout period, determined by the "D3" suffix in the part number. This value is factory-programmed and non-adjustable - ensuring consistent timing behavior without external capacitor dependencies.
Can MAX6716UTZGD3 monitor a third voltage rail, and if so, how?
No, MAX6716UTZGD3 is a dual-supply supervisor only. While the MAX6719A/MAX6720A variants include RSTIN for auxiliary voltage monitoring, MAX6716UTZGD3 lacks this pin and does not support external threshold adjustment - its function is strictly limited to VCC1 and VCC2 supervision.
What package type and pin count does MAX6716UTZGD3 use, and is it RoHS-compliant?
MAX6716UTZGD3 uses a 6-pin SOT23 package (2.9mm × 1.6mm × 1.1mm) with lead-free/RoHS-compliant construction denoted by the "+" in the ordering code. The pinout is fully documented in Maxim's datasheet Figure 1 and Pin Description Table.
MAX6716UTZGD3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 1.11V, 2.313V
- 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-23-6
MAX6716UTZGD3 FAQ
1.How can I place an order for MAX6716UTZGD3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6716UTZGD3 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 MAX6716UTZGD3 reliable?
The price and inventory of MAX6716UTZGD3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6716UTZGD3 is usually 5 days.
3.What payment methods are accepted for MAX6716UTZGD3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6716UTZGD3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6716UTZGD3?
MAX6716UTZGD3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6716UTZGD3 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 MAX6716UTZGD3?
For technical support, including MAX6716UTZGD3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6716UTZGD3 requirements.
6.How does Aetrix verify that MAX6716UTZGD3 is sourced from the original manufacturer or authorized distributors?
All MAX6716UTZGD3 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 MAX6716UTZGD3 meets industry standards.
7.What is the process for return or replacement of MAX6716UTZGD3?
All MAX6716UTZGD3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6716UTZGD3, 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 MAX6716UTZGD3 part is unused and in its original packaging.
Return procedure for MAX6716UTZGD3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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