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Analog Devices Inc./Maxim Integrated MAX6715UTYDD3+
- Part No.:
- MAX6715UTYDD3+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6715UTYDD3+.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,423
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Product details
Overview
MAX6715UTYDD3+ from Maxim Integrated is a dual-voltage microprocessor supervisory circuit in SOT23-6 package, monitoring VCC1 (1.575V threshold) and VCC2 (0.788V 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 multivoltage embedded systems.
For engineers reviewing the MAX6715UTYDD3+ datasheet, MAX6715UTYDD3+ pinout, MAX6715UTYDD3+ application, or MAX6715UTYDD3+ equivalent, key selection factors include factory-trimmed dual-threshold accuracy (±2.5% over temperature), ultra-low 14µA supply current at 3.6V, immunity to sub-20µs VCC transients, and compatibility with 1.8V/0.9V core-I/O rail monitoring in space-constrained industrial controllers.
Technical Context
The MAX6715UTYDD3+ integrates two independent voltage comparators with internal 1.575V (VTH1) and 0.788V (VTH2) precision thresholds, each referenced to a bandgap-derived 626mV internal reference and trimmed to ±2.5% initial accuracy. Its reset timeout logic uses a temperature-stable RC oscillator calibrated for 210ms (min) delay after all monitored supplies exceed thresholds.
It features a dedicated MR input with 50kΩ internal pullup to VCC1, 1µs minimum pulse width support, and 100ns glitch rejection; reset assertion propagates within 20ns of VCC1/VCC2 crossing threshold, with VOL ≤ 0.4V at 3.2mA sink load - enabling direct interface to 1.8V/3.3V µP reset pins without level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 1.575V (typ), ±2.5% over -40°C to +85°C - ensures reliable reset assertion for 1.8V I/O rails under brownout |
| VCC2 Threshold | 0.788V (typ), ±2.5% over -40°C to +85°C - supports monitoring of 0.9V core supplies in low-power SoCs |
| Reset Timeout | 210ms (min), factory-set via D3 suffix - provides sufficient hold time for FPGA configuration and boot ROM initialization |
| Supply Current | 14µA (typ) at 3.6V - enables >10-year battery life in always-on monitoring applications |
| Reset Output Type | Push-pull active-low RST referenced to VCC1 - eliminates need for external pullup and simplifies PCB routing |
| Operating Range | -40°C to +85°C - qualified for industrial temperature operation without derating |
| VCC Immunity | Valid reset state guaranteed down to VCC1 or VCC2 = 0.8V - prevents spurious resets during deep brownout recovery |
Pinout & Package
MAX6715UTYDD3+ is housed in a 6-pin SOT23-6 package (2.9mm × 1.6mm × 1.1mm), RoHS-compliant and lead-free (+T suffix). Pin 1 is marked with dot; device orientation follows JEDEC MO-178 standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1; sinks 3.2mA at VOL ≤ 0.4V - drives µP reset directly |
| 2 | GND | Analog/digital ground reference for all comparators and internal logic - must be low-impedance connection |
| 3 | MR | Active-low manual reset input with 50kΩ internal pullup to VCC1; accepts TTL/CMOS levels - enables front-panel reset button |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V range); powers VTH2 comparator and sets RST2 reference - monitors core voltage domain |
| 5 | VCC1 | Primary supply input (1.8V–5.0V range); powers VTH1 comparator and RST driver - monitors I/O or system rail |
| 6 | NC | No connect - internally unconnected; must remain floating or tied to GND per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Dual factory-trimmed thresholds | VTH1 = 1.575V ±2.5%, VTH2 = 0.788V ±2.5% - eliminates external resistor networks and calibration overhead |
| 210ms min reset timeout | Guaranteed minimum duration set by D3 suffix - meets JEDEC JESD22-A102B cold-start timing requirements |
| Push-pull RST output | Drives 3.2mA sink load at VOL ≤ 0.4V - interfaces directly to ARM Cortex-M reset pins without pullup resistors |
| MR input with internal pullup | 50kΩ pullup to VCC1, 1µs pulse width support - enables momentary switch interface with no external components |
| Ultra-low ICC | 14µA typical at 3.6V - reduces quiescent power in always-on power management subsystems |
Applications
| Telecom Power Sequencing | Industrial PLC Controller |
|---|---|
|
Use Scenario: Sequencing 3.3V backplane and 1.2V FPGA core rails in carrier-grade access equipment. IC Role / Device Role / Timing Role: Dual-threshold supervisor asserting reset until both rails stabilize above 1.575V and 0.788V respectively, then holding 210ms. Use Value: Prevents FPGA configuration corruption during hot-swap insertion by enforcing strict voltage-ordering and timing. |
Use Scenario: Monitoring redundant 24V DC-to-3.3V/1.8V converter outputs in DIN-rail mounted PLCs. IC Role / Device Role / Timing Role: Detects simultaneous brownout on primary (VCC1) and secondary (VCC2) rails and triggers controlled watchdog-initiated shutdown. Use Value: Enables deterministic fail-safe state capture before power collapse, meeting IEC 61508 SIL-2 requirements. |
| Portable Medical Monitor | Battery-Powered IoT Gateway |
|
Use Scenario: Validating Li-ion battery discharge into 3.3V system rail and 1.1V sensor hub supply in handheld diagnostics. IC Role / Device Role / Timing Role: Asserts reset when VCC1 drops below 1.575V or VCC2 falls below 0.788V, with 210ms timeout before MCU restart. Use Value: Avoids erratic ADC sampling or flash write corruption during end-of-battery voltage sag. |
Use Scenario: Supervising dual LDO outputs (3.3V RF module, 1.8V MCU) in LPWAN edge node with coin-cell backup. IC Role / Device Role / Timing Role: Monitors both rails continuously; MR input allows firmware-triggered safe reboot via GPIO. Use Value: Extends usable battery life by 12% versus discrete supervisor solutions due to 14µA quiescent current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3808G15DBVR | Single-supply monitor (1.5V threshold only); requires external resistor for VCC2 monitoring; 200ms timeout | Lacks integrated dual-threshold capability - needs external comparator for second rail | Select when only one rail requires supervision and board space permits discrete solution |
| ADM6715SYKSZ-RL | 1.6V/0.8V thresholds; 200ms timeout; open-drain RST; higher 25µA ICC | Requires external pullup; less accurate VTH2 (±3.5%) - marginal for 0.9V core margining | Choose if open-drain output is required for wired-OR reset bus topology |
Compared with TPS3808G15DBVR and ADM6715SYKSZ-RL, MAX6715UTYDD3+ delivers tighter dual-threshold accuracy (±2.5%), lower quiescent current (14µA vs. 20–25µA), and integrated push-pull RST - reducing BOM count and improving noise immunity in dense multivoltage layouts.
Availability
MAX6715UTYDD3+ is available at Aetrix Electronics and suitable for telecom power sequencing, industrial PLC controllers, portable medical monitors, and battery-powered IoT gateways requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6715UTYDD3+ 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, mixed-signal, and high-reliability ICs for industrial, automotive, and communications markets, with emphasis on power management and system-level reliability.
The MAX6715–MAX6729 family was engineered specifically for multivoltage microprocessor supervision in space-constrained, low-power embedded systems - delivering factory-trimmed dual thresholds, ultra-low ICC, and robust reset timing in miniature SOT23 packages.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on MAX6715UTYDD3+?
The MAX6715UTYDD3+ has factory-trimmed reset thresholds of 1.575V (typ) for VCC1 and 0.788V (typ) for VCC2, with ±2.5% tolerance over the full -40°C to +85°C operating range. These values are fixed by the 'YD' suffix per Maxim's Reset Voltage Threshold Suffix Guide and do not require external resistor programming.
Does MAX6715UTYDD3+ support monitoring a third voltage rail?
No, MAX6715UTYDD3+ is a dual-voltage supervisor only. It monitors VCC1 and VCC2 exclusively. For triple-voltage monitoring, consider MAX6719UTYDD3+ or MAX6723UTYDD3+, which include the RSTIN input for externally adjustable third-rail supervision down to 0.626V.
What is the function of Pin 6 on MAX6715UTYDD3+?
Pin 6 on MAX6715UTYDD3+ is NC (No Connect) - it is internally unconnected and must remain floating or be tied to GND per Maxim's layout recommendations. This differs from other variants like MAX6719 that use Pin 6 for RSTIN.
Can MAX6715UTYDD3+ operate with VCC1 = 1.8V and VCC2 = 0.9V simultaneously?
Yes, MAX6715UTYDD3+ is fully specified to monitor VCC1 from 1.8V to 5.0V and VCC2 from 0.9V to 3.3V concurrently. Its guaranteed reset validity down to VCC1 or VCC2 = 0.8V ensures reliable operation even during deep brownout conditions on either rail.
Is the reset timeout period of MAX6715UTYDD3+ adjustable?
No, the 210ms (min) reset timeout is factory-programmed and fixed by the 'D3' suffix in MAX6715UTYDD3+. It cannot be adjusted externally. For different timeout periods, select alternate suffixes (e.g., D1 = 1.65ms, D2 = 13.2ms, D5 = 420ms) per the Reset Timeout Period Suffix Guide.
MAX6715UTYDD3+ 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:
- 0.788V, 2.188V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6715UTYDD3+ FAQ
1.How can I place an order for MAX6715UTYDD3+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6715UTYDD3+ 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 MAX6715UTYDD3+ reliable?
The price and inventory of MAX6715UTYDD3+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6715UTYDD3+ is usually 5 days.
3.What payment methods are accepted for MAX6715UTYDD3+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6715UTYDD3+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6715UTYDD3+?
MAX6715UTYDD3+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6715UTYDD3+ 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 MAX6715UTYDD3+?
For technical support, including MAX6715UTYDD3+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6715UTYDD3+ requirements.
6.How does Aetrix verify that MAX6715UTYDD3+ is sourced from the original manufacturer or authorized distributors?
All MAX6715UTYDD3+ 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 MAX6715UTYDD3+ meets industry standards.
7.What is the process for return or replacement of MAX6715UTYDD3+?
All MAX6715UTYDD3+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6715UTYDD3+, 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 MAX6715UTYDD3+ part is unused and in its original packaging.
Return procedure for MAX6715UTYDD3+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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