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Analog Devices Inc./Maxim Integrated MAX6715UTLRD3
- Part No.:
- MAX6715UTLRD3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- -
- Datasheet:
-
MAX6715UTLRD3.pdf
- Description:
- DUAL/TRIPLE, ULTRA-LOW VOLTAGE,
- Quantity:
- Payment:
- Shipping:
Inventory:2,194
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Product details
Overview
MAX6715UTLRD3 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, and guaranteed reset validity down to VCC = 0.8V. It ensures reliable power-up sequencing and brownout protection in battery-powered telecom and industrial control systems.
For engineers reviewing the MAX6715UTLRD3 datasheet, MAX6715UTLRD3 pinout, MAX6715UTLRD3 application, or MAX6715UTLRD3 equivalent, key selection criteria 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 manual-reset and watchdog-free designs.
Technical Context
The MAX6715UTLRD3 implements factory-trimmed dual-threshold comparators for independent VCC1 and VCC2 monitoring, with reset assertion triggered by either supply falling below its specified threshold (VTH1 = 4.625V, VTH2 = 3.075V). Its internal timer guarantees minimum 210ms reset pulse width after all supplies recover, with restart capability if voltage dips recur before timeout completion.
It features a push-pull RST output referenced to VCC1, eliminating need for external pullup, and integrates no watchdog or RSTIN/PFI/MR functions-confirmed by suffix "D3" (210ms timeout) and absence of WDI/RSTIN/PFI pins in its 6-pin SOT23 configuration per Pin Configuration Guide.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.625V (factory-trimmed, ±1.5% over -40°C to +125°C; ensures precise 5V rail supervision) |
| VCC2 Threshold | 3.075V (factory-trimmed, ±1.5% over -40°C to +125°C; matches common 3.3V I/O supply) |
| Reset Timeout | 210ms (minimum; provides sufficient hold time for µP initialization and peripheral settling) |
| Supply Current | 14µA typical at 3.6V (enables multi-year operation in coin-cell–powered IoT sensors) |
| Operating Temp | -40°C to +125°C (supports under-hood automotive and industrial edge computing) |
| Reset Validity | Down to VCC1 or VCC2 = 0.8V (guarantees clean reset assertion during deep brownout) |
| Output Type | Push-pull active-low RST (drives directly into µP reset pin without pullup resistor) |
Pinout & Package
Package: 6-pin SOT23 (2.9mm × 1.6mm × 1.1mm), RoHS-compliant, tape-and-reel.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1; asserts low on VCC1/VCC2 fault and holds for 210ms |
| 2 | GND | Ground reference for all internal comparators and output driver |
| 3 | MR | Active-low manual-reset input with 50kΩ internal pullup to VCC1; forces reset when pulled low |
| 4 | VCC2 | Secondary supply input (3.075V threshold monitor); powers internal circuitry when > VCC1 |
| 5 | VCC1 | Primary supply input (4.625V threshold monitor); powers device when > VCC2 |
| 6 | NC | No connect - unused pin; must be left floating or tied to GND per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous supervision of 5V (VCC1) and 3.3V (VCC2) rails with separate, factory-trimmed thresholds |
| Guaranteed reset validity at low VCC | Outputs remain functional and logic-correct even as VCC1 or VCC2 drops to 0.8V |
| Ultra-low quiescent current | 14µA typical at 3.6V enables use in always-on battery-backed systems without significant drain |
| Transient-immune reset generation | Immunity to VCC glitches <20µs duration prevents spurious resets during switching noise events |
| Push-pull RST output | Eliminates need for external pullup resistor, reducing BOM count and PCB area in space-constrained designs |
Applications
| Telecom Line Card Power Monitoring | Industrial PLC I/O Module |
|---|---|
Use Scenario: Supervises primary 5V DC-DC converter and secondary 3.3V LDO in carrier-grade line cards operating at -40°C to +85°C ambient. IC Role / Device Role / Timing Role: Dual-threshold supervisor asserting reset during undervoltage on either rail, holding for 210ms to ensure FPGA configuration completes. Use Value: Prevents corrupted firmware load by guaranteeing µP remains held in reset until both supplies stabilize within tolerance. | Use Scenario: Monitors 24V-to-5V primary supply and isolated 3.3V I/O bus supply in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Provides fail-safe reset coordination between main controller and field I/O ASICs during brownout recovery. Use Value: Enables deterministic system restart without software intervention when AC mains dip below 180VAC. |
| Portable Medical Sensor Hub | Automotive Body Control Module |
Use Scenario: Ensures clean boot of ARM Cortex-M4 host in wearable ECG sensor hub powered by single Li-ion cell (3.0–4.2V). IC Role / Device Role / Timing Role: Supervises buck-regulated 3.3V core supply and LDO-derived 1.8V sensor interface rail with 210ms timeout. Use Value: Eliminates risk of analog front-end initialization errors caused by marginal supply ramp rates. | Use Scenario: Monitors 5V infotainment domain controller supply and 3.3V CAN transceiver supply in 12V vehicle electrical system. IC Role / Device Role / Timing Role: Asserts hardware reset to MCU when battery voltage sags below cold-crank threshold (4.625V) or CAN supply dips (3.075V). Use Value: Meets ISO 16750-2 pulse 4 requirement for robustness during engine start transients. |
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 VDD2 input; 200ms timeout; open-drain RST | Lacks dual-supply monitoring; requires external divider for second rail; needs pullup resistor | Select when only single-rail supervision is needed and board space allows pullup placement |
| ADM6715S26ARJZ-R7 | 2.63V VCC1 threshold; 200ms timeout; push-pull RST; same 6-pin SOT23 package | Lower VCC1 threshold unsuitable for 5V systems; identical footprint but different threshold set | Choose for 3.3V/2.5V dual-rail systems where 4.625V threshold is not required |
Compared with TPS3808G33DBVR and ADM6715S26ARJZ-R7, MAX6715UTLRD3 uniquely delivers factory-trimmed 4.625V/3.075V thresholds in push-pull configuration-enabling direct µP reset drive without external components while supporting full 5V system supervision.
Availability
MAX6715UTLRD3 is available at Aetrix Electronics and suitable for telecom infrastructure, industrial PLCs, and portable medical devices requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6715UTLRD3 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 MAX6715–MAX6729 family targets ultra-low-voltage, multi-rail power supervision in space-constrained embedded systems where reliability across wide temperature ranges is critical.
FAQ
What is the exact reset threshold voltage for VCC1 on the MAX6715UTLRD3?
The MAX6715UTLRD3 has a factory-trimmed VCC1 reset threshold of 4.625V, with ±1.5% tolerance over the full -40°C to +125°C operating range. This value is confirmed by the "T" suffix in the threshold code per Maxim's Reset Voltage Threshold Suffix Guide and appears in the Electrical Characteristics table under VTH1 for the "T" option.
Does the MAX6715UTLRD3 include a watchdog timer function?
No, the MAX6715UTLRD3 does not include a watchdog timer. Its part number suffix "D3" indicates only reset timeout functionality (210ms), and the device lacks WDI pin capability-confirmed by its 6-pin SOT23 pinout (pins: RST, GND, MR, VCC2, VCC1, NC) and absence of watchdog-related features in the Functional Description section.
Can the MAX6715UTLRD3 monitor a third voltage rail?
No, the MAX6715UTLRD3 is a dual-supply supervisor only. It monitors VCC1 and VCC2 exclusively. Models with RSTIN capability (e.g., MAX6719A) or PFI inputs (e.g., MAX6728A) support triple-voltage monitoring, but MAX6715UTLRD3 omits those pins and associated circuitry per its ordering information and pin configuration table.
What is the reset output type and drive strength of the MAX6715UTLRD3?
The MAX6715UTLRD3 features a push-pull active-low RST output referenced to VCC1, capable of sinking 3.2mA at VCC1 ≥ 4.5V with VOL ≤ 0.4V. It requires no external pullup resistor and directly drives standard µP reset inputs, unlike open-drain variants that mandate external biasing.
Is the MAX6715UTLRD3 compatible with manual reset functionality?
Yes, the MAX6715UTLRD3 includes an active-low manual-reset input (MR) on pin 3, with internal 50kΩ pullup to VCC1. Pulling MR low forces immediate reset assertion, which remains active for the full 210ms timeout period after MR returns high-enabling hardware-initiated recovery without µP intervention.
MAX6715UTLRD3 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 FAQ
1.How can I place an order for MAX6715UTLRD3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6715UTLRD3 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 reliable?
The price and inventory of MAX6715UTLRD3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6715UTLRD3 is usually 5 days.
3.What payment methods are accepted for MAX6715UTLRD3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6715UTLRD3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6715UTLRD3?
MAX6715UTLRD3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6715UTLRD3 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?
For technical support, including MAX6715UTLRD3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6715UTLRD3 requirements.
6.How does Aetrix verify that MAX6715UTLRD3 is sourced from the original manufacturer or authorized distributors?
All MAX6715UTLRD3 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 meets industry standards.
7.What is the process for return or replacement of MAX6715UTLRD3?
All MAX6715UTLRD3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6715UTLRD3, 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 part is unused and in its original packaging.
Return procedure for MAX6715UTLRD3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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