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Analog Devices Inc./Maxim Integrated MAX6716UTSDD3-T
- Part No.:
- MAX6716UTSDD3-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6716UTSDD3-T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
MAX6716UTSDD3-T 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 minimum 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 MAX6716UTSDD3-T datasheet, MAX6716UTSDD3-T pinout, MAX6716UTSDD3-T application, or MAX6716UTSDD3-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 compatibility with bidirectional µP reset I/O via series resistor.
Technical Context
The MAX6716UTSDD3-T integrates two independent voltage comparators with factory-trimmed thresholds (VTH1 = 4.625V, VTH2 = 3.075V), a 210ms 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 valid reset logic state with VCC1 or VCC2 ≥ 0.8V. No watchdog, RSTIN, or PFI functionality is included - confirmed by Selector Guide and Ordering Information.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Reset Threshold | 4.625V (factory-trimmed, ±1.5% over -40°C to +85°C) |
| VCC2 Reset Threshold | 3.075V (factory-trimmed, ±1.5% over -40°C to +85°C) |
| Reset Timeout Period | 210ms (minimum, guaranteed over full temperature range) |
| Supply Current | 14µA typical at 3.6V - enables battery-backed systems with >10-year shelf life |
| Reset Output Type | Push-pull active-low RST referenced to VCC1 - eliminates external pullup and reduces BOM count |
| Minimum Valid VCC | 0.8V on either VCC1 or VCC2 - ensures reliable reset assertion during deep brownout |
| MR Input Logic | Active-low with 50kΩ internal pullup to VCC1 - simplifies button interface without external components |
Pinout & Package
Package: 6-pin SOT23-6, surface-mount, -40°C to +85°C operating range.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Push-pull active-low reset output referenced to VCC1; sinks 3.2mA at VCC1 ≥ 4.5V |
| 2 | GND | Analog/digital ground reference for all internal comparators and timers |
| 3 | MR | Active-low manual reset input with 50kΩ internal pullup to VCC1; accepts TTL/CMOS levels |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V); powers VCC2 comparator and sets VTH2 = 3.075V |
| 5 | VCC1 | Primary supply input (1.8V–5.0V); powers core logic and sets VTH1 = 4.625V |
| 6 | NC | No connect - internally unconnected; must be left floating or tied to GND per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Dual factory-trimmed voltage monitoring | VTH1 = 4.625V ±1.5%, VTH2 = 3.075V ±1.5% - eliminates external resistor networks and calibration |
| Guaranteed reset validity at low VCC | Operates correctly with VCC1 or VCC2 ≥ 0.8V - critical for graceful shutdown in multi-rail systems |
| Push-pull RST output | Eliminates need for external pullup resistor - reduces component count and PCB area in space-constrained designs |
| Immunity to short VCC transients | Rejects glitches <20µs duration even with 100mV overdrive - prevents spurious resets in noisy power environments |
| Ultra-low quiescent current | 14µA typical at 3.6V - extends battery life in portable and always-on IoT edge nodes |
Applications
| Telecom Power Sequencing | Server Baseboard Management |
|---|---|
Use Scenario: Sequencing 48V-to-12V DC/DC converter outputs and 3.3V/1.8V FPGA rails in carrier-grade line cards. IC Role / Device Role / Timing Role: Dual-supply supervisor asserting reset until both 12V and 3.3V stabilize above 4.625V and 3.075V respectively, then holding 210ms timeout before releasing µP. Use Value: Prevents FPGA configuration corruption by ensuring all rails are within spec before boot - eliminates field returns due to timing-related startup failures. |
Use Scenario: Monitoring primary 5V standby and secondary 3.3V system rails on server motherboard BMC controllers. IC Role / Device Role / Timing Role: Asserting hardware reset to BMC if either rail drops below threshold during hot-swap or transient events, with 210ms debounce to reject noise. Use Value: Enables autonomous recovery from partial power loss without host intervention - improves system uptime and meets IPMI fault-handling requirements. |
| Industrial PLC I/O Modules | Medical Diagnostic Imaging Power Control |
Use Scenario: Supervising isolated 24V field power and 5V logic rails in programmable logic controller modules exposed to EMI-rich factory floors. IC Role / Device Role / Timing Role: Providing robust reset signaling with 0.8V minimum VCC operation to survive brownouts, and MR input for emergency local reset via front-panel button. Use Value: Ensures deterministic restart after voltage sags - avoids undefined PLC state that could cause unsafe actuator behavior. |
Use Scenario: Monitoring high-precision 3.3V analog sensor bias and 1.2V FPGA core supplies in MRI gradient amplifier control boards. IC Role / Device Role / Timing Role: Dual-threshold supervision with tight 1.5% tolerance to detect marginal supply deviations before they corrupt ADC sampling or timing-critical FPGA logic. Use Value: Prevents image artifacts caused by supply-induced clock jitter or data corruption - directly supports FDA Class II device reliability requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6715UTLTD3-T | Open-drain RST output (vs. push-pull); identical thresholds (4.625V/3.075V) and 210ms timeout | Requires external pullup resistor; suitable where level-shifting or wired-OR reset bus is needed | Select when interfacing to µPs with bidirectional reset pins or when multiple supervisors share a common reset line |
| TPS3808G33DBVR | Single-supply monitor (3.3V only); 200ms timeout; 2.5µA supply current; no manual reset input | Lacks VCC2 monitoring and MR - cannot replace dual-rail supervision or field-service reset capability | Use only for cost-sensitive single-rail applications where VCC2 supervision and manual reset are unnecessary |
Compared with MAX6716UTSDD3-T, MAX6715UTLTD3-T offers identical voltage thresholds and timing but requires external pullup, while TPS3808G33DBVR reduces supply current by 82% but sacrifices dual-supply monitoring and manual reset - making it unsuitable for systems requiring coordinated multi-rail startup or field serviceability.
Availability
MAX6716UTSDD3-T is available at Aetrix Electronics and suitable for telecom power sequencing, server baseboard management, and industrial PLC I/O modules requiring stable component supply across extended product lifecycles.
Supply support for MAX6716UTSDD3-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 in industrial, computing, and communications markets.
The MAX6715–MAX6729 family delivers ultra-low-voltage, multi-rail supervisory functions in miniature SOT23 packages - engineered specifically for space-constrained, multi-supply systems demanding high accuracy and low power.
FAQ
What are the exact reset threshold voltages for MAX6716UTSDD3-T?
The MAX6716UTSDD3-T 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 temperature range. These values are fixed by the "TS" suffix per Maxim's Reset Voltage Threshold Suffix Guide and do not require external resistor configuration. The MAX6716UTSDD3-T does not support adjustable thresholds or third-supply monitoring.
Does MAX6716UTSDD3-T include watchdog or power-fail functionality?
No, the MAX6716UTSDD3-T does not include watchdog timer (WDI), power-fail input (PFI), or power-fail output (PFO) functionality. Per Maxim's Selector Guide, only MAX6721–MAX6729 variants support these features. The MAX6716UTSDD3-T is strictly a dual-supply supervisor with manual reset input and push-pull RST output - confirmed by pinout (no WDI/PFI pins) and functional diagram.
What is the reset timeout period for MAX6716UTSDD3-T and how is it set?
The MAX6716UTSDD3-T has a minimum reset timeout period of 210ms, set by the "D3" suffix in the part number per Maxim's Reset Timeout Period Suffix Guide. This value is factory-programmed and non-adjustable. The timeout begins when all monitored supplies rise above their thresholds and ends 210ms later - guaranteeing sufficient hold time for µP initialization before release.
Can MAX6716UTSDD3-T operate with VCC1 = 1.8V and VCC2 = 1.2V?
No - the MAX6716UTSDD3-T requires VCC1 ≥ 1.8V and VCC2 ≥ 0.9V per datasheet specifications, but its factory-trimmed thresholds (4.625V and 3.075V) are incompatible with such low supplies. Attempting to use it with VCC1 = 1.8V would prevent the VCC1 comparator from functioning, as 1.8V is far below the 4.625V trip point. The MAX6716UTSDD3-T is intended for higher-voltage rails like 5V/3.3V or 4.5V/3.0V systems.
How is the manual reset (MR) input used on MAX6716UTSDD3-T?
The MR input on MAX6716UTSDD3-T is active-low with an internal 50kΩ pullup to VCC1. Pulling MR to GND for ≥1µs forces an immediate reset assertion, which remains active for the full 210ms timeout after MR returns high. No external components are needed - a simple momentary switch from MR to GND provides field-serviceable reset capability. The MAX6716UTSDD3-T ignores MR pulses shorter than 1µs to reject noise.
MAX6716UTSDD3-T 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:
- 0.788V, 2.925V
- 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
MAX6716UTSDD3-T FAQ
1.How can I place an order for MAX6716UTSDD3-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6716UTSDD3-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 MAX6716UTSDD3-T reliable?
The price and inventory of MAX6716UTSDD3-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6716UTSDD3-T is usually 5 days.
3.What payment methods are accepted for MAX6716UTSDD3-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6716UTSDD3-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6716UTSDD3-T?
MAX6716UTSDD3-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6716UTSDD3-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 MAX6716UTSDD3-T?
For technical support, including MAX6716UTSDD3-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6716UTSDD3-T requirements.
6.How does Aetrix verify that MAX6716UTSDD3-T is sourced from the original manufacturer or authorized distributors?
All MAX6716UTSDD3-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 MAX6716UTSDD3-T meets industry standards.
7.What is the process for return or replacement of MAX6716UTSDD3-T?
All MAX6716UTSDD3-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6716UTSDD3-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 MAX6716UTSDD3-T part is unused and in its original packaging.
Return procedure for MAX6716UTSDD3-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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