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Analog Devices Inc./Maxim Integrated MAX6715UTLRD3-T
- Part No.:
- MAX6715UTLRD3-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- -
- Datasheet:
-
MAX6715UTLRD3-T.pdf
- Description:
- DUAL/TRIPLE, ULTRA-LOW VOLTAGE,
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
MAX6715UTLRD3-T from Maxim Integrated is a dual-voltage microprocessor supervisory circuit in SOT23-6 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 MAX6715UTLRD3-T datasheet, MAX6715UTLRD3-T pinout, MAX6715UTLRD3-T application, or MAX6715UTLRD3-T equivalent, key selection criteria include dual-supply threshold accuracy (±1.5% over temperature), low 14µA typical supply current at 3.6V, immunity to sub-20µs VCC transients, and compatibility with 1.8V–5.0V primary/0.9V–3.3V secondary supply rails.
Technical Context
The MAX6715UTLRD3-T implements independent voltage comparators for VCC1 and VCC2, each with factory-trimmed thresholds (4.625V and 3.075V respectively), hysteresis of 0.5% of VTH, and 20µs propagation delay from supply droop to reset assertion. Its internal reset timeout timer guarantees ≥210ms deassertion hold time after all monitored supplies recover.
It features a dedicated manual reset input (MR) with 50kΩ internal pullup to VCC1, 1µs minimum pulse width support, and 200ns MR-to-reset delay. The push-pull RST output drives high to 0.8×VCC1 at 500µA source current and low to 0.4V at 3.2mA sink current, eliminating external pullup requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.625V (factory-trimmed, ±1.5% over -40°C to +85°C) |
| VCC2 Threshold | 3.075V (factory-trimmed, ±1.5% over -40°C to +85°C) |
| Reset Timeout | 210ms min (ensures µP completes boot before release) |
| Supply Current | 14µA typ at 3.6V (enables battery-backed operation) |
| Reset Validity | Down to VCC1 or VCC2 = 0.8V (supports brownout detection) |
| Output Type | Push-pull active-low RST (no external pullup required) |
| MR Input | Active-low with 50kΩ internal pullup to VCC1 (simplifies button interface) |
Pinout & Package
MAX6715UTLRD3-T is housed in a 6-pin SOT23-6 package (1.6mm × 2.9mm × 1.1mm), RoHS-compliant, with thermal pad option not included. Pin 1 is marked by dot; device orientation follows JEDEC MO-178.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output; asserts when VCC1 < 4.625V or VCC2 < 3.075V; drives to 0.4V @ 3.2mA sink |
| 2 | GND | Analog/digital ground reference; must be low-impedance connection to system ground plane |
| 3 | MR | Active-low manual reset input; internally pulled up to VCC1 (50kΩ); 1µs minimum pulse width |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V range); powers internal comparator for VCC2 monitoring |
| 5 | VCC1 | Primary supply input (1.8V–5.0V range); powers core logic and RST output stage |
| 6 | NC | No connect; left floating per datasheet; not bonded internally |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous VCC1 and VCC2 supervision with separate thresholds avoids single-point failure in multirail systems |
| Factory-trimmed precision thresholds | 4.625V/3.075V with ±1.5% tolerance eliminates external resistor calibration |
| Guaranteed reset validity to 0.8V | Ensures reliable reset assertion during deep brownout conditions where many supervisors fail |
| Push-pull RST output | Eliminates need for external pullup resistor, reducing BOM count and PCB area |
| Low 14µA supply current | Enables use in always-on subsystems without compromising battery life |
Applications
| Telecom Power Sequencing | Server Board Management |
|---|---|
Use Scenario: Sequencing startup of FPGA, PHY, and memory rails in 48V DC-fed telecom line cards. IC Role / Device Role / Timing Role: Dual-supply supervisor enforcing strict VCC1/VCC2 power-up order and asserting reset until both rails stabilize above 4.625V and 3.075V. Use Value: Prevents configuration corruption by holding FPGA in reset until all voltage domains meet spec, leveraging 210ms timeout to accommodate slow-start DC/DC converters. | Use Scenario: Monitoring primary 3.3V and auxiliary 1.8V rails on x86 server motherboard VRM outputs. IC Role / Device Role / Timing Role: Independent comparator-based supervision of two critical supply domains, with reset asserted if either drops below threshold during runtime. Use Value: Enables immediate system halt on rail collapse, avoiding silent data corruption; push-pull RST drives baseboard management controller (BMC) directly without level-shifting. |
| Industrial PLC I/O Module | Medical Diagnostic Imaging Subsystem |
Use Scenario: Ensuring clean power-up of isolated analog front-end and digital control ASIC in programmable logic controller modules. IC Role / Device Role / Timing Role: Supervising 5.0V analog supply and 3.3V digital supply with manual reset override via front-panel button connected to MR pin. Use Value: Internal 50kΩ MR pullup simplifies mechanical switch interface; 0.8V reset validity supports operation during marginal AC-DC converter regulation. | Use Scenario: Monitoring dual supplies powering CCD sensor array and image processing SoC in portable ultrasound units. IC Role / Device Role / Timing Role: Providing deterministic reset timing (210ms min) to synchronize sensor initialization and firmware load across battery-powered subsystems. Use Value: 14µA quiescent current extends battery runtime between charges; factory-trimmed thresholds eliminate calibration drift over 10-year medical device lifecycle. |
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 | Single-supply monitor (3.3V only); no VCC2 input; 200ms fixed timeout; open-drain RST | Requires external circuitry to supervise second rail; lacks MR input; needs pullup resistor | Select when only one supply requires monitoring and cost sensitivity outweighs dual-rail capability |
| ADM6711S26ARTZ-R7 | Fixed 2.63V VCC1 threshold; no VCC2 monitoring; 240ms timeout; push-pull RST; includes watchdog | Cannot monitor secondary supply; adds watchdog complexity not needed in basic dual-rail reset | Choose when watchdog functionality is required and secondary rail supervision is handled elsewhere |
Compared with TPS3808G33DBVR and ADM6711S26ARTZ-R7, the MAX6715UTLRD3-T uniquely delivers factory-trimmed dual-threshold supervision in a single SOT23-6 package with push-pull output and MR support - reducing component count and layout complexity for multivoltage systems.
Availability
MAX6715UTLRD3-T is available at Aetrix Electronics and suitable for telecom power sequencing, server board management, and industrial PLC I/O modules requiring stable component supply, long-term lifecycle support, and guaranteed -40°C to +85°C operation.
Supply support for MAX6715UTLRD3-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 connectivity applications, with emphasis on high-reliability industrial and communications solutions.
The MAX6715–MAX6729 family targets multivoltage embedded systems needing compact, low-power, factory-calibrated supervision - specifically engineered for telecom, computing, and industrial equipment where supply margin and timing predictability are critical.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6715UTLRD3-T?
The MAX6715UTLRD3-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 operating range. These values are encoded in the "L" (VCC1 = 4.625V) and "R" (VCC2 = 3.075V) suffixes of the part number and verified in the Reset Voltage Threshold Suffix Guide. The MAX6715UTLRD3-T does not support adjustable thresholds - all monitoring is fixed at these two levels.
Does the MAX6715UTLRD3-T include a watchdog timer or power-fail detection feature?
No, the MAX6715UTLRD3-T does not include a watchdog timer or power-fail input/output. Per the Selector Guide, it belongs to the MAX6715 series - which provides dual-voltage supervision, manual reset (MR), and push-pull RST output only. Watchdog and PFI/PFO functions appear starting with MAX6721 and MAX6728 variants. The MAX6715UTLRD3-T is optimized for simplicity and minimal footprint in applications requiring only dual-rail reset assertion.
What is the function of Pin 6 on the MAX6715UTLRD3-T, and can it be connected?
Pin 6 on the MAX6715UTLRD3-T is designated NC (No Connect) and is not bonded internally. It must remain unconnected per the datasheet; routing traces to or placing components on this pin violates the device's validated design and may cause unpredictable behavior. The MAX6715UTLRD3-T uses only Pins 1–5 for RST, GND, MR, VCC2, and VCC1 respectively - Pin 6 serves solely as mechanical alignment marker in the SOT23-6 package.
How does the manual reset (MR) input behave on the MAX6715UTLRD3-T during power-up?
During power-up, the MR input on the MAX6715UTLRD3-T is internally pulled up to VCC1 via a 50kΩ resistor, ensuring it remains logic-high and non-asserting until actively pulled low. The MAX6715UTLRD3-T guarantees valid reset output even while VCC1 ramps from 0.8V upward, so MR-driven reset is fully functional across the entire power-rail rise time. No external debounce or RC filtering is required for typical pushbutton use.
Is the MAX6715UTLRD3-T compatible with 1.8V-only systems, and what is its minimum operating voltage?
Yes, the MAX6715UTLRD3-T supports 1.8V systems: VCC1 accepts 1.8V–5.0V and VCC2 accepts 0.9V–3.3V. Its reset output remains valid down to VCC1 or VCC2 = 0.8V, enabling reliable brownout detection well below nominal 1.8V. However, the 4.625V VCC1 threshold means it cannot supervise a 1.8V rail as VCC1 - that rail must be assigned to VCC2 (with appropriate threshold variant). For pure 1.8V/1.2V dual-rail supervision, a different variant like MAX6715UTTWD3-T would be required.
MAX6715UTLRD3-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- -
- Type:
- -
- Number of Voltages Monitored:
- -
- Voltage - Threshold:
- -
- Output:
- -
- Reset:
- -
- Reset Timeout:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX6715UTLRD3-T FAQ
1.How can I place an order for MAX6715UTLRD3-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6715UTLRD3-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 MAX6715UTLRD3-T reliable?
The price and inventory of MAX6715UTLRD3-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6715UTLRD3-T is usually 5 days.
3.What payment methods are accepted for MAX6715UTLRD3-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6715UTLRD3-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6715UTLRD3-T?
MAX6715UTLRD3-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6715UTLRD3-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 MAX6715UTLRD3-T?
For technical support, including MAX6715UTLRD3-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6715UTLRD3-T requirements.
6.How does Aetrix verify that MAX6715UTLRD3-T is sourced from the original manufacturer or authorized distributors?
All MAX6715UTLRD3-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 MAX6715UTLRD3-T meets industry standards.
7.What is the process for return or replacement of MAX6715UTLRD3-T?
All MAX6715UTLRD3-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6715UTLRD3-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 MAX6715UTLRD3-T part is unused and in its original packaging.
Return procedure for MAX6715UTLRD3-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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