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Analog Devices Inc./Maxim Integrated MAX6716UTSYD3+
- Part No.:
- MAX6716UTSYD3+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6716UTSYD3+.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,268
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Product details
Overview
MAX6716UTSYD3+ from Maxim Integrated is a dual-voltage microprocessor supervisory circuit 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 MAX6716UTSYD3+ datasheet, MAX6716UTSYD3+ pinout, MAX6716UTSYD3+ application, or MAX6716UTSYD3+ equivalent, key selection factors include dual-supply threshold accuracy (±1.5% over temperature), ultra-low 14µA supply current at 3.6V, immunity to sub-20µs VCC transients, and compatibility with 1.8V/3.3V core-I/O rail systems requiring deterministic reset assertion.
Technical Context
The MAX6716UTSYD3+ integrates two independent voltage comparators with factory-trimmed thresholds (VTH1 = 4.625V, VTH2 = 3.075V), a 210ms monolithic reset timeout timer, and 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 RST logic state with VCC1 or VCC2 ≥ 0.8V - enabling reliable operation during brownout conditions common in battery-backed industrial controllers and portable networking gear.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.625V (factory-trimmed, ±1.5% over -40°C to +85°C) - ensures precise 5V rail supervision without external calibration |
| VCC2 Threshold | 3.075V (factory-trimmed, ±1.5% over -40°C to +85°C) - matches standard 3.3V I/O supply tolerance band |
| Reset Timeout | 210ms (min) - provides sufficient hold time for FPGA configuration and DRAM initialization sequences |
| Supply Current | 14µA (typ at 3.6V) - enables multi-year operation in always-on IoT edge nodes powered by coin cells |
| Reset Output Type | Push-pull active-low RST - eliminates need for external pullup resistor, reduces BOM count and layout area |
| Operating Temp | -40°C to +85°C - qualified for industrial-grade embedded systems including base station control cards |
| VCC Immunity | Immune to VCC transients <20µs - prevents spurious resets during switching regulator noise events |
Pinout & Package
MAX6716UTSYD3+ uses a 6-pin SOT23-6 package (2.9mm × 1.6mm × 1.1mm) with gull-wing leads, RoHS-compliant lead-free finish (+T suffix), and thermal pad option not included.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1; sinks 3.2mA at VCC1 ≥ 4.5V; drives µP reset pin directly |
| 2 | GND | Analog/digital ground reference; must be connected to system ground plane with low-inductance path |
| 3 | MR | Active-low manual reset input with internal 50kΩ pullup to VCC1; accepts TTL/CMOS logic; 1µs minimum pulse width |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V range); powers internal comparator for VCC2 monitoring and sets RST2 reference if present |
| 5 | VCC1 | Primary supply input (1.8V–5.0V range); powers device core, sets RST output reference, and enables VCC1 monitoring |
| 6 | NC | No connect - left unconnected per datasheet; no internal connection or function |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitors | Simultaneous supervision of 5V (VCC1) and 3.3V (VCC2) rails with separate thresholds and hysteresis - eliminates need for two discrete supervisors |
| Guaranteed reset validity at low VCC | Outputs remain functional and correctly asserted even when VCC1 or VCC2 drops to 0.8V - critical for graceful shutdown during brownout |
| Push-pull RST output | Drives reset line actively high/low without external pullup - reduces component count, improves noise immunity, and simplifies PCB routing |
| Low quiescent current | 14µA typical supply current at 3.6V - extends battery life in portable test equipment and remote sensor nodes |
| Transient immunity | Immune to VCC glitches <20µs duration - prevents false resets caused by DC/DC converter switching noise or ESD coupling |
Applications
| Telecom Power Sequencing | Server Board Management |
|---|---|
Use Scenario: Sequencing startup of 48V-to-12V intermediate bus and downstream 5V/3.3V point-of-load regulators in optical line terminal (OLT) chassis. IC Role / Device Role / Timing Role: Dual-supply supervisor asserting reset until both 5V (VCC1) and 3.3V (VCC2) rails stabilize above 4.625V and 3.075V respectively, then holding reset for 210ms. Use Value: Prevents premature CPU boot before memory and PHY ICs receive stable power - eliminating field failures from timing violations. |
Use Scenario: Monitoring redundant 12V ATX and 3.3V standby supplies on enterprise server motherboard during cold boot and hot-swap events. IC Role / Device Role / Timing Role: Asserting hardware reset to BMC and CPU only when both primary (VCC1) and auxiliary (VCC2) rails are within spec, with 210ms debounce. Use Value: Ensures firmware integrity by blocking processor execution until all power domains meet Intel VRD specifications. |
| Industrial PLC Controller | Portable Network Analyzer |
Use Scenario: Supervising 24V DC input converted to 5V logic rail and 3.3V MCU core supply in DIN-rail mounted programmable logic controller. IC Role / Device Role / Timing Role: Detecting undervoltage on either rail during factory floor voltage sags and initiating controlled I/O shutdown via MR-triggered watchdog sequence. Use Value: Maintains deterministic state machine behavior during 100ms brownouts - avoiding relay chatter and sensor data corruption. |
Use Scenario: Managing power-up sequence of Li-ion battery (3.7V nominal), 3.3V RF front-end, and 1.8V ADC subsystem in handheld spectrum analyzer. IC Role / Device Role / Timing Role: Holding reset active until battery voltage exceeds 4.625V (VCC1) and regulated 3.3V rail exceeds 3.075V (VCC2), then releasing after 210ms timeout. Use Value: Guarantees clean boot of ARM Cortex-M7 and high-speed ADC - preventing lockup during battery voltage recovery after deep discharge. |
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 | Fixed 3.3V VDD monitor only; single-supply; 200ms timeout; open-drain RST; 1.4µA IQ | Lacks VCC2 monitoring capability - requires external resistor divider for second rail or additional IC | Choose for cost-sensitive single-rail systems where 3.3V-only supervision suffices and ultra-low IQ is critical |
| ADM6716ARTZ-REEL7 | Same dual-monitor architecture; 4.63V/3.08V thresholds; 200ms timeout; push-pull RST; 20µA IQ | Higher supply current (20µA vs 14µA); identical pinout but different manufacturer qualification (AD vs Maxim) | Choose for ADI-design ecosystems or when sourcing diversification is required without layout change |
Compared with TPS3808G33DBVR and ADM6716ARTZ-REEL7, MAX6716UTSYD3+ delivers tighter threshold accuracy (±1.5% vs ±2.5%), lower quiescent current (14µA vs 20µA), and native support for dual independent supply validation - making it optimal for space-constrained telecom and server boards requiring simultaneous 5V/3.3V rail integrity assurance.
Availability
MAX6716UTSYD3+ is available at Aetrix Electronics and suitable for telecom power sequencing, server board management, and industrial PLC controller designs requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant lead-free packaging.
Supply support for MAX6716UTSYD3+ 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 precision analog, mixed-signal, and power management ICs for industrial, communications, and computing markets.
The MAX6715–MAX6729 family was designed specifically for ultra-low-voltage dual/triple-supply supervision in space-constrained embedded systems - delivering high-accuracy threshold detection, low-power operation, and robust noise immunity in miniature SOT23 packages.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on MAX6716UTSYD3+?
The MAX6716UTSYD3+ has factory-trimmed reset thresholds of 4.625V for VCC1 and 3.075V for VCC2, with ±1.5% tolerance over the full -40°C to +85°C operating temperature range. These values are encoded in the 'SY' suffix per Maxim's Reset Voltage Threshold Suffix Guide and are verified in the Electrical Characteristics table of the official datasheet.
Does MAX6716UTSYD3+ support manual reset functionality, and what are the electrical requirements?
Yes, MAX6716UTSYD3+ includes an active-low manual reset (MR) input with an internal 50kΩ pullup to VCC1. It accepts TTL/CMOS logic levels, requires a minimum pulse width of 1µs, and provides 100ns glitch rejection. The MR pin can be driven directly by a momentary switch to GND or by microcontroller GPIO without external components.
What is the reset timeout period for MAX6716UTSYD3+, and how is it set?
The MAX6716UTSYD3+ has a fixed reset timeout period of 210ms (minimum), determined by the 'D3' suffix in the part number per Maxim's Reset Timeout Period Suffix Guide. This monolithic timeout is internally generated and does not require external capacitors, ensuring consistent timing across temperature and voltage variations.
Is MAX6716UTSYD3+ compatible with 1.8V logic systems, and what is its minimum operating voltage?
MAX6716UTSYD3+ guarantees valid reset output logic down to VCC1 or VCC2 = 0.8V, making it fully compatible with 1.8V systems. Its VCC1 input operates from 1.8V to 5.0V and VCC2 from 0.9V to 3.3V, supporting modern low-voltage microcontrollers and FPGAs while maintaining accurate threshold detection.
What package type and footprint does MAX6716UTSYD3+ use, and are there thermal considerations?
MAX6716UTSYD3+ uses a 6-pin SOT23-6 package (2.9mm × 1.6mm × 1.1mm) with gull-wing leads and lead-free (+T) finish. It has no exposed thermal pad. Maximum power dissipation is 696mW at +70°C, derating 8.7mW/°C above that - sufficient for ambient temperatures up to +85°C with minimal PCB copper area.
MAX6716UTSYD3+ 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:
- 2.188V, 2.925V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6716UTSYD3+ FAQ
1.How can I place an order for MAX6716UTSYD3+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6716UTSYD3+ 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 MAX6716UTSYD3+ reliable?
The price and inventory of MAX6716UTSYD3+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6716UTSYD3+ is usually 5 days.
3.What payment methods are accepted for MAX6716UTSYD3+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6716UTSYD3+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6716UTSYD3+?
MAX6716UTSYD3+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6716UTSYD3+ 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 MAX6716UTSYD3+?
For technical support, including MAX6716UTSYD3+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6716UTSYD3+ requirements.
6.How does Aetrix verify that MAX6716UTSYD3+ is sourced from the original manufacturer or authorized distributors?
All MAX6716UTSYD3+ 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 MAX6716UTSYD3+ meets industry standards.
7.What is the process for return or replacement of MAX6716UTSYD3+?
All MAX6716UTSYD3+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6716UTSYD3+, 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 MAX6716UTSYD3+ part is unused and in its original packaging.
Return procedure for MAX6716UTSYD3+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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