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Analog Devices Inc./Maxim Integrated MAX6715AUTWGD3+T
- Part No.:
- MAX6715AUTWGD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6715AUTWGD3+T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,038
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Product details
Overview
MAX6715AUTWGD3+T from Maxim Integrated is a dual-supply ultra-low-voltage microprocessor supervisory circuit in SOT23-6 package, monitoring VCC1 (1.8V–5.0V) and VCC2 (0.9V–3.3V) with factory-trimmed reset thresholds, 140ms minimum reset timeout, and guaranteed reset validity down to VCC1 or VCC2 = 0.8V. It supports manual reset, watchdog timer disable, and operates across –40°C to +125°C for telecom and industrial power management.
For engineers reviewing the MAX6715AUTWGD3+T datasheet, MAX6715AUTWGD3+T pinout, MAX6715AUTWGD3+T application, or MAX6715AUTWGD3+T equivalent, key selection criteria include dual-rail voltage monitoring capability, 140ms reset timeout (D3 suffix), push-pull RST output, and compatibility with low-voltage core/logic supplies in space-constrained embedded systems.
Technical Context
The MAX6715AUTWGD3+T integrates two independent voltage comparators with hysteresis (0.5% typical), a precision internal reference (626.5mV for RSTIN/PFI), and a programmable reset timeout timer. Its dual-supply architecture enables simultaneous monitoring of primary (VCC1) and secondary (VCC2) rails without external biasing.
It features a dedicated MR input with 50kΩ internal pullup to VCC1, push-pull RST output referenced to VCC1, and guaranteed functional operation at VCC1/VCC2 ≥ 0.8V - enabling robust brownout detection in battery-backed or low-dropout regulator-fed systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Reset Threshold | 4.625V (typical, W suffix), factory-trimmed for precise 4.5V–4.75V system rail supervision |
| VCC2 Reset Threshold | 3.075V (typical, T suffix), optimized for 3.0V–3.15V auxiliary supply monitoring |
| Reset Timeout Period | 140ms (min), D3 suffix ensures sufficient hold time for processor initialization sequences |
| Supply Current | 14µA (typ at 3.6V), enables always-on supervision in battery-critical portable equipment |
| Operating Temperature | –40°C to +125°C, qualified for under-hood automotive and industrial control environments |
| Reset Output Type | Push-pull active-low RST, eliminates need for external pullup and simplifies interface to CMOS inputs |
| Minimum Valid Supply | VCC1 or VCC2 ≥ 0.8V, guarantees correct reset assertion during deep brownout conditions |
Pinout & Package
SOT23-6 package (package code U6+1), 1.6mm × 2.9mm footprint, 0.95mm height, thermal resistance θJA = 115°C/W (multilayer board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1; asserts when VCC1/VCC2 fall below threshold or MR is pulled low |
| 2 | GND | System ground reference for all internal comparators and logic |
| 3 | MR | Active-low manual-reset input with 50kΩ internal pullup to VCC1; initiates reset on logic-low pulse ≥1µs |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V); powers internal VCC2 comparator and sets RST2 reference if present |
| 5 | VCC1 | Primary supply input (1.8V–5.0V); powers device core, sets RST output reference, and enables MR pullup |
| 6 | RSTIN/PFI | Shared high-impedance input for adjustable third-voltage monitor (RSTIN mode) or power-fail detection (PFI mode); threshold = 626.5mV |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitors | Simultaneous VCC1 and VCC2 supervision with separate thresholds avoids single-point failure in multirail systems |
| Factory-trimmed reset thresholds | W/T suffix pair delivers ±1.5% accuracy over temperature, eliminating calibration overhead in production |
| 140ms minimum reset timeout | Ensures reliable processor boot completion before release, compatible with ARM Cortex-M and Intel Atom startup sequences |
| Guaranteed reset validity to 0.8V | Enables fail-safe reset assertion during severe brownout, critical for data integrity in flash memory write operations |
| Watchdog disable by floating WDI | No external components needed to disable watchdog; 200nA unconnected-state detector prevents false triggers |
| Immunity to short VCC transients | Withstands ≤20µs negative glitches at 100mV overdrive, reducing spurious resets in noisy power environments |
Applications
| Telecom Line Cards | Industrial PLC Controllers |
|---|---|
|
Use Scenario: Monitoring 3.3V backplane and 1.2V FPGA core supplies in carrier-grade line cards. IC Role / Device Role / Timing Role: Dual-rail supervisor asserting synchronized reset across multiple FPGAs and DSPs during power-up or brownout. Use Value: Prevents partial configuration and metastability by holding all logic in reset until both rails stabilize above 3.075V and 1.110V respectively. |
Use Scenario: Supervising 24V DC input-derived 5V logic and 3.3V I/O supplies in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Primary system health monitor interfacing directly with ARM-based controller reset pin via push-pull output. Use Value: Guarantees reset remains asserted during 24V input sag to 12V (VCC1 ≥ 0.8V), ensuring deterministic firmware recovery. |
| Medical Imaging Sensors | Automotive ADAS Camera Modules |
|
Use Scenario: Managing power sequencing for low-noise analog front-end (1.8V) and digital processing (3.3V) in portable ultrasound sensors. IC Role / Device Role / Timing Role: Dual-threshold supervisor triggering controlled shutdown when either rail drops below specification during battery discharge. Use Value: Enables graceful sensor deactivation before ADC saturation or timing error accumulation, preserving diagnostic accuracy. |
Use Scenario: Monitoring 5V camera power and 1.2V image sensor core supply in AEC-Q100-compliant surround-view systems. IC Role / Device Role / Timing Role: Safety-critical reset generator meeting ASIL-B requirements for vision processing SoC initialization. Use Value: Delivers 140ms reset hold time validated across –40°C to +125°C, ensuring consistent boot behavior in extreme ambient conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-supply supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6716AUTWD3+T | Same package and timeout, but VCC1 threshold = 4.375V (M suffix) and VCC2 = 2.925V (S suffix) | Better suited for 4.2V Li-ion systems with 2.8V auxiliary rail; less margin for 4.5V nominal supplies | Select when tighter VCC1 tolerance around 4.3V is required and 4.625V would cause premature reset assertion |
| TPS3808G33DBVR | Single-supply only (3.3V fixed), no VCC2 monitor, 200ms timeout, 2.5µA quiescent current | Lacks dual-rail capability; requires separate IC for secondary rail supervision | Choose only for cost-sensitive single-rail designs where VCC2 monitoring is unnecessary and longer timeout is acceptable |
Compared with MAX6716AUTWD3+T and TPS3808G33DBVR, the MAX6715AUTWGD3+T provides higher VCC1 threshold headroom (4.625V vs. 4.375V/3.3V) and integrated dual-rail supervision - reducing BOM count and PCB area in multivoltage systems requiring precise brownout detection.
Availability
MAX6715AUTWGD3+T is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and automotive ADAS applications requiring stable component supply, long-term lifecycle support, and AEC-Q100-aligned reliability.
Supply support for MAX6715AUTWGD3+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 demanding industrial, automotive, and communications applications.
The MAX6715A–MAX6729A family delivers ultra-low-voltage supervisory circuits targeting multirail embedded systems where space, power, and reliability constrain traditional discrete solutions.
FAQ
What is the exact reset timeout period of the MAX6715AUTWGD3+T?
The MAX6715AUTWGD3+T has a minimum reset timeout period of 140ms, as indicated by the D3 suffix in its part number. This value is guaranteed over the full –40°C to +125°C operating temperature range and is independent of supply voltage within the specified VCC1/VCC2 limits. The actual timeout may extend up to 280ms under worst-case process and temperature conditions, per the datasheet's electrical characteristics table.
Does the MAX6715AUTWGD3+T support monitoring a third voltage rail?
Yes, the MAX6715AUTWGD3+T supports third-rail monitoring via its RSTIN/PFI pin. When configured as RSTIN, it compares the external voltage against a precise 626.5mV internal reference, enabling adjustable threshold supervision down to 0.62V using an external resistor divider. This function is fully operational in the MAX6715AUTWGD3+T variant and does not require additional components beyond the divider network.
Is the MAX6715AUTWGD3+T pin-compatible with other devices in the MAX6715A–MAX6729A family?
The MAX6715AUTWGD3+T uses the SOT23-6 package with standardized pinout (VCC1, VCC2, MR, GND, RST, RSTIN/PFI), making it mechanically and electrically pin-compatible with all other 6-pin variants in the MAX6715A–MAX6729A series. However, threshold voltages (W/T suffixes) and reset output type (push-pull confirmed for this variant) must be verified per device - swapping without cross-checking suffixes may result in incorrect reset behavior.
What is the maximum supply voltage the MAX6715AUTWGD3+T can tolerate on VCC1 and VCC2?
The MAX6715AUTWGD3+T supports absolute maximum supply voltages of +6V on both VCC1 and VCC2 pins, as specified in the Absolute Maximum Ratings table. Continuous operation is rated from 0.8V to 5.5V per supply. Exceeding 5.5V risks permanent damage, while operation below 0.8V invalidates reset output logic state guarantees - though the device remains powered and functional down to 0V.
How does the manual reset (MR) input behave during power-up of the MAX6715AUTWGD3+T?
The MR input of the MAX6715AUTWGD3+T features a 50kΩ internal pullup to VCC1, ensuring it defaults to logic-high when left unconnected. During power-up, MR remains inactive until VCC1 reaches ~0.8V, after which the pullup becomes effective. A valid reset pulse requires MR to be held low for ≥1µs after VCC1 stabilizes; shorter pulses are rejected by the 100ns glitch filter, preventing spurious resets from noise or contact bounce.
MAX6715AUTWGD3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 1.11V, 1.665V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6715AUTWGD3+T FAQ
1.How can I place an order for MAX6715AUTWGD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6715AUTWGD3+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 MAX6715AUTWGD3+T reliable?
The price and inventory of MAX6715AUTWGD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6715AUTWGD3+T is usually 5 days.
3.What payment methods are accepted for MAX6715AUTWGD3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6715AUTWGD3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6715AUTWGD3+T?
MAX6715AUTWGD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6715AUTWGD3+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 MAX6715AUTWGD3+T?
For technical support, including MAX6715AUTWGD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6715AUTWGD3+T requirements.
6.How does Aetrix verify that MAX6715AUTWGD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6715AUTWGD3+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 MAX6715AUTWGD3+T meets industry standards.
7.What is the process for return or replacement of MAX6715AUTWGD3+T?
All MAX6715AUTWGD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6715AUTWGD3+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 MAX6715AUTWGD3+T part is unused and in its original packaging.
Return procedure for MAX6715AUTWGD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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