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Analog Devices Inc./Maxim Integrated MAX6715UTTGD3
- Part No.:
- MAX6715UTTGD3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6715UTTGD3.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,282
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Product details
Overview
MAX6715UTTGD3 from Maxim Integrated is a dual-voltage microprocessor supervisory circuit in SOT23-6 package, monitoring VCC1 (primary supply) and VCC2 (secondary supply) with factory-trimmed reset thresholds of 4.625V (VTH1) and 3.075V (VTH2), 210ms minimum reset timeout, and push-pull active-low RST output. It guarantees valid reset assertion down to VCC1 or VCC2 = 0.8V and supports manual reset input (MR) for system-level fault recovery in multivoltage embedded power rails.
For engineers reviewing the MAX6715UTTGD3 datasheet, MAX6715UTTGD3 pinout, MAX6715UTTGD3 application, or MAX6715UTTGD3 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 guaranteed operation across -40°C to +85°C industrial temperature range.
Technical Context
The MAX6715UTTGD3 implements two independent voltage comparators with internal 20ppm/°C tempco references, each feeding a shared reset timeout timer that restarts on any threshold violation. Its push-pull RST output is referenced to VCC1 and drives high to ≥0.8×VCC1 when deasserted, with VOL ≤0.4V at 3.2mA sink.
This device lacks watchdog, RSTIN, PFI/PFO, or RST2 functionality-confirmed by Selector Guide and Pin Configuration tables-making it a minimal-feature dual-supply supervisor optimized for deterministic reset timing and low quiescent current in space-constrained applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold (VTH1) | 4.625V (factory-trimmed, ±1.5% over -40°C to +85°C); ensures reliable reset assertion before 5V rail collapse |
| VCC2 Threshold (VTH2) | 3.075V (factory-trimmed, ±1.5% over -40°C to +85°C); monitors 3.3V I/O supply with margin against brownout |
| Reset Timeout Period | 210ms (minimum); provides sufficient hold time for µP initialization after power stabilization |
| Supply Current (ICC) | 14µA typical at 3.6V; enables battery-backed systems to maintain supervision >1 year on coin cell |
| Operating Temperature | -40°C to +85°C; qualified for industrial-grade embedded control and telecom equipment |
| Reset Output Type | Push-pull active-low RST referenced to VCC1; eliminates need for external pullup resistor |
| Minimum Valid VCC | 0.8V on either VCC1 or VCC2; guarantees correct reset logic state during deep brownout conditions |
Pinout & Package
MAX6715UTTGD3 is housed in a 6-pin SOT23-6 package (2.9mm × 1.6mm × 1.1mm), RoHS-compliant, with gull-wing leads and thermal pad not connected internally.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1; asserts low on VCC1/VCC2 undervoltage and holds for 210ms min after recovery |
| 2 | GND | System ground reference for all internal comparators, timers, and output drivers |
| 3 | MR | Active-low manual reset input with 50kΩ internal pullup to VCC1; forces reset when pulled low, holds for full timeout period |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V range); powers internal circuitry when VCC2 > VCC1 and sets VTH2 comparator reference |
| 5 | VCC1 | Primary supply input (1.8V–5.0V range); powers internal circuitry when VCC1 > VCC2 and sets VTH1 comparator reference |
| 6 | NC | No connect; pin left unconnected per datasheet; no internal bond wire or function assigned |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous VCC1 (4.625V) and VCC2 (3.075V) supervision with separate comparators avoids single-point failure in multirail systems |
| Guaranteed reset validity down to 0.8V | Ensures deterministic reset behavior during severe brownout-no undefined output states below 1.0V supply |
| Low 14µA supply current | Reduces standby power in always-on subsystems; enables use in energy-harvesting or battery-critical designs |
| Push-pull RST output | Eliminates external pullup resistor, saving PCB area and BOM cost while improving noise immunity vs. open-drain alternatives |
| 210ms reset timeout (min) | Meets JEDEC JESD76 requirements for µP reset hold time; accommodates slow-ramping DC/DC converters |
Applications
| Industrial PLC Power Sequencing | Telecom Line Card Voltage Monitoring |
|---|---|
Use Scenario: Supervises primary 5V and secondary 3.3V rails powering FPGA, PHY, and MCU in modular line cards. IC Role / Device Role / Timing Role: Dual-threshold supervisor asserting active-low RST to halt firmware execution until both rails stabilize post-power-up. Use Value: Prevents metastability in FPGA configuration logic by enforcing 210ms minimum reset hold time after VCC1/VCC2 rise above 4.625V/3.075V. |
Use Scenario: Monitors redundant 5V and 3.3V supplies in carrier-grade Ethernet switches with hot-swap capability. IC Role / Device Role / Timing Role: Fault detector triggering system-level reset on first rail collapse, with MR input enabling remote diagnostics-initiated reset. Use Value: Guarantees reset assertion even if one supply drops to 0.8V-critical for fail-safe operation during partial power loss events. |
| Embedded Medical Sensor Hub | POS Terminal Power Management |
Use Scenario: Ensures clean boot of ARM Cortex-M4-based sensor aggregator powered by Li-ion battery (3.3V) and buck-boost regulator (5V). IC Role / Device Role / Timing Role: Low-current (14µA) supervisor maintaining reset integrity during battery voltage sag between 3.6V and 3.0V. Use Value: Factory-trimmed 3.075V VTH2 threshold provides precise margin above 3.0V brownout limit, avoiding spurious resets during transient load spikes. |
Use Scenario: Controls power sequencing for EMV chip-card reader, display, and secure element in retail point-of-sale terminals. IC Role / Device Role / Timing Role: Dual-rail monitor asserting RST until both 5V interface and 3.3V core supplies meet specification. Use Value: Push-pull RST output directly interfaces with µP reset pin without pullup, simplifying layout and reducing EMI susceptibility in noisy retail environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6316US46D3+ | Single-supply (4.63V only), no VCC2 monitoring; 200ms timeout; SOT23-5 package | Lacks secondary rail supervision-requires separate IC for 3.3V monitoring | Select when only primary 5V rail supervision is needed and board space is constrained to 5-pin footprint |
| TPS3808G33DBVR | Single-supply (3.3V), adjustable threshold via external resistor; 200ms timeout; SOT23-6 | Cannot monitor dual rails simultaneously; requires external divider for 4.625V threshold | Choose when design flexibility for custom thresholds outweighs need for factory-trimmed dual-rail accuracy |
Compared with MAX6715UTTGD3, MAX6316US46D3+ reduces component count but sacrifices dual-rail coverage, while TPS3808G33DBVR offers adjustability at the cost of added external components and reduced precision-making MAX6715UTTGD3 optimal for fixed dual-threshold, low-risk industrial deployments.
Availability
MAX6715UTTGD3 is available at Aetrix Electronics and suitable for industrial PLCs, telecom line cards, embedded medical sensor hubs, POS terminals, and set-top boxes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6715UTTGD3 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 management, sensing, and interface applications, with emphasis on reliability and integration for industrial and communications markets.
The MAX6715–MAX6729 family delivers ultra-low-voltage dual/triple supervisory circuits targeting multivoltage embedded systems where deterministic reset timing, low quiescent current, and guaranteed operation down to 0.8V are critical design requirements.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6715UTTGD3?
The MAX6715UTTGD3 has factory-trimmed reset thresholds of 4.625V for VCC1 (primary supply) and 3.075V for VCC2 (secondary supply), with ±1.5% tolerance over the full -40°C to +85°C operating range. These values are encoded in the "TT" suffix per the Reset Voltage Threshold Suffix Guide and confirmed in the Electrical Characteristics table under VTH1 and VTH2 parameters.
Does the MAX6715UTTGD3 support watchdog timer or power-fail monitoring functionality?
No, the MAX6715UTTGD3 does not include watchdog timer (WDI), power-fail input/output (PFI/PFO), or adjustable RSTIN functionality. Per the Selector Guide and Pin Configuration tables, it is a minimal dual-supply supervisor with only VCC1, VCC2, MR, RST, GND, and NC pins-making it distinct from MAX6721–MAX6729 variants that add those features.
What is the purpose of the NC pin on the MAX6715UTTGD3 SOT23-6 package?
Pin 6 of the MAX6715UTTGD3 is designated NC (No Connect) in the Pin Description table and carries no internal connection or function. It must remain unconnected on the PCB; soldering or routing to this pin may cause mechanical stress or unintended coupling but will not affect electrical operation of the MAX6715UTTGD3.
How does the MAX6715UTTGD3 guarantee valid reset output when VCC drops below 1.0V?
The MAX6715UTTGD3 guarantees correct reset logic state down to VCC1 or VCC2 = 0.8V, as specified in the Absolute Maximum Ratings and Detailed Description sections. This is achieved through internal biasing and comparator design that maintains functional integrity-even when supply voltage falls below typical CMOS logic thresholds-ensuring RST remains asserted until both monitored rails recover above their thresholds.
Can the MAX6715UTTGD3 be used with a 1.8V primary supply?
No-the MAX6715UTTGD3's VCC1 threshold is fixed at 4.625V, and its VCC1 input range is specified for 1.8V to 5.0V, but the 4.625V threshold implies intended use with 5V nominal rails. Using it with 1.8V VCC1 would result in permanent reset assertion since 1.8V < 4.625V; for 1.8V systems, a different variant (e.g., MAX6715UTLTD3 with 1.665V VTH1) must be selected.
MAX6715UTTGD3 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:
- 1.11V, 3.075V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
MAX6715UTTGD3 FAQ
1.How can I place an order for MAX6715UTTGD3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6715UTTGD3 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 MAX6715UTTGD3 reliable?
The price and inventory of MAX6715UTTGD3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6715UTTGD3 is usually 5 days.
3.What payment methods are accepted for MAX6715UTTGD3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6715UTTGD3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6715UTTGD3?
MAX6715UTTGD3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6715UTTGD3 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 MAX6715UTTGD3?
For technical support, including MAX6715UTTGD3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6715UTTGD3 requirements.
6.How does Aetrix verify that MAX6715UTTGD3 is sourced from the original manufacturer or authorized distributors?
All MAX6715UTTGD3 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 MAX6715UTTGD3 meets industry standards.
7.What is the process for return or replacement of MAX6715UTTGD3?
All MAX6715UTTGD3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6715UTTGD3, 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 MAX6715UTTGD3 part is unused and in its original packaging.
Return procedure for MAX6715UTTGD3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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