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Analog Devices Inc./Maxim Integrated MAX6715AUTZGD3+T
- Part No.:
- MAX6715AUTZGD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6715AUTZGD3+T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,397
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Product details
Overview
The MAX6715AUTZGD3+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 (VTH1 = 4.625V typ, VTH2 = 3.075V typ), 140ms minimum reset timeout, and guaranteed reset validity down to VCC ≥ 0.8V - used in telecom power sequencing and multivoltage server management.
For engineers reviewing the MAX6715AUTZGD3+T datasheet, MAX6715AUTZGD3+T pinout, MAX6715AUTZGD3+T application, or MAX6715AUTZGD3+T equivalent, key selection criteria include dual-rail threshold accuracy (±1.5% over -40°C to +125°C), low 14µA supply current at 3.6V, push-pull RST output referenced to VCC1, and compatibility with manual-reset and watchdog-disabled configurations in space-constrained industrial embedded systems.
Technical Context
This device implements independent voltage comparators for VCC1 and VCC2, each with 20ppm/°C tempco and 0.5% hysteresis, driving a single-shot reset timeout timer. The internal logic asserts active-low RST when either supply falls below its threshold and holds it for the full 140ms (min) period after both supplies recover.
It features a dedicated MR input with 50kΩ internal pullup to VCC1, glitch rejection of 100ns, and 200ns MR-to-RST delay; no watchdog or RSTIN/PFI functionality is present in this variant, as confirmed by suffix "GD3" indicating fixed dual-supply monitoring with push-pull RST and 140ms timeout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.625V typical (factory-trimmed 'G' suffix), ±1.5% over temperature - ensures reliable reset assertion for 4.5V–5.0V primary rails |
| VCC2 Threshold | 3.075V typical (factory-trimmed 'D' suffix), ±1.5% over temperature - matches common 3.3V secondary supply tolerance |
| Reset Timeout | 140ms minimum (suffix 'D3'), non-adjustable - provides sufficient hold time for slow-starting DC-DC converters |
| Supply Current | 14µA typical at 3.6V - enables battery-backed operation in portable equipment without significant drain |
| Operating Temp | -40°C to +125°C - qualified for under-hood automotive and industrial control environments |
| Reset Validity | Guaranteed down to VCC1 or VCC2 = 0.8V - supports brownout detection during deep undervoltage conditions |
| Output Type | Push-pull active-low RST referenced to VCC1 - eliminates need for external pullup and drives directly into µP reset pin |
Pinout & Package
SOT23-6 package (package code U6+1), 1.6mm × 2.9mm footprint, 1.1mm height, thermal resistance θJA = 115°C/W on multilayer board.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1; sinks 1.2mA at 2.7V - directly interfaces µP reset pin without pullup |
| 2 | GND | System ground reference for all comparators and logic - must be low-impedance connection to avoid false resets |
| 3 | MR | Active-low manual-reset input with 50kΩ internal pullup to VCC1; 1µs minimum pulse width - supports momentary switch or CMOS logic trigger |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V); powers internal VCC2 comparator and sets RST2 reference if enabled - not used in MAX6715A series |
| 5 | VCC1 | Primary supply input (1.8V–5.0V); powers entire IC and references RST output - must be stable before reset timeout completes |
| 6 | NC | No connect - internally unconnected; must remain floating per datasheet - not tied to GND or VCC |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous VCC1 and VCC2 supervision with separate thresholds prevents single-point failure in multirail systems |
| Factory-trimmed precision thresholds | VTH1 = 4.625V ±1.5%, VTH2 = 3.075V ±1.5% - eliminates external resistor calibration and reduces BOM count |
| 140ms min reset timeout | Guaranteed hold time exceeds typical DC-DC startup delays (e.g., 100ms for POL converters), ensuring clean µP boot |
| Push-pull RST output | Drives µP reset pin directly without external pullup - simplifies layout and improves noise immunity vs open-drain |
| Low 14µA quiescent current | Enables always-on supervision in battery-powered IoT nodes with >10-year shelf life at 3.6V |
Applications
| Telecom Power Sequencing | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Sequencing multiple DC-DC rails (48V → 12V → 3.3V → 1.8V) in base station power subsystems. IC Role / Device Role / Timing Role: Dual-supply supervisor monitors 3.3V (VCC1) and 1.8V (VCC2) rails, asserting RST until both stabilize post-power-up. Use Value: Prevents FPGA configuration errors by holding µP in reset until all voltage domains meet spec, eliminating field failures from partial rail ramp-up. |
Use Scenario: Protecting programmable logic controllers during AC line sags or brownouts in factory automation cabinets. IC Role / Device Role / Timing Role: Monitors main 24VDC supply (via resistive divider to VCC1) and isolated 5V logic rail (VCC2), triggering reset on either drop. Use Value: Guarantees deterministic safe shutdown within 140ms, meeting SIL-2 functional safety requirements for emergency stop circuits. |
| Server Management Controllers | Medical Diagnostic Imaging Systems |
Use Scenario: Supervising BMC (Baseboard Management Controller) power rails in 1U rack servers with tight thermal constraints. IC Role / Device Role / Timing Role: Tracks 3.3V standby (VCC1) and 1.2V core (VCC2) supplies; push-pull RST drives ARM-based BMC reset pin directly. Use Value: Eliminates external pullup resistor, saving 0.5mm² PCB area and reducing thermal load in thermally dense server mezzanine cards. |
Use Scenario: Ensuring reliable boot of FPGA-based image reconstruction engines in MRI and CT scanners during generator switchover. IC Role / Device Role / Timing Role: Monitors 5.0V analog front-end supply (VCC1) and 3.3V digital processing rail (VCC2), with reset validity down to 0.8V supporting extended brownout windows. Use Value: Maintains reset assertion through 100ms utility interruptions, preventing corrupted DICOM data writes during critical acquisition phases. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-supply supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6316LUK31D3+T | Single-supply (VCC only), 3.08V threshold, same 140ms timeout, SOT23-5 | Lacks VCC2 monitoring - suitable only where secondary rail supervision is unnecessary | Select when cost reduction and smaller footprint (5-pin vs 6-pin) outweigh need for dual-rail fault detection |
| TPS3808G33DBVR | Single-supply (VCC), 3.3V threshold, adjustable timeout (200ms–10s), SOT23-6 | No VCC2 input; timeout programmable via capacitor - requires additional passive component | Choose when system requires field-adjustable reset duration or operates exclusively on 3.3V rail |
Compared with MAX6715AUTZGD3+T, MAX6316LUK31D3+T reduces pin count and cost but sacrifices secondary-supply monitoring, while TPS3808G33DBVR offers timeout flexibility at the expense of dual-rail capability - making MAX6715AUTZGD3+T optimal for fixed-threshold, dual-rail integrity assurance in compact designs.
Availability
MAX6715AUTZGD3+T is available at Aetrix Electronics and suitable for telecom infrastructure, industrial PLCs, and medical imaging systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6715AUTZGD3+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 high-performance analog and mixed-signal ICs for demanding industrial, automotive, and communications applications.
The MAX6715A–MAX6729A family delivers ultra-low-voltage supervisory functions in miniature SOT23 packages, targeting space-constrained systems requiring robust power-rail monitoring across wide temperature ranges.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6715AUTZGD3+T?
The MAX6715AUTZGD3+T has factory-trimmed thresholds: VCC1 reset threshold is 4.625V (±1.5%) and VCC2 reset threshold is 3.075V (±1.5%), as defined by the 'G' and 'D' suffixes in the part number. These values are guaranteed over -40°C to +125°C and do not require external calibration. The MAX6715AUTZGD3+T uses these fixed thresholds to ensure consistent behavior across production units without trimming components.
Does the MAX6715AUTZGD3+T support watchdog timer functionality?
No, the MAX6715AUTZGD3+T does not include watchdog timer functionality. Its suffix 'GD3' indicates a dual-supply supervisor with fixed thresholds and 140ms reset timeout, but no WDI pin or watchdog logic. Watchdog capability is only present in variants with 'W' or '21'–'29' suffixes (e.g., MAX6721A). The MAX6715AUTZGD3+T relies solely on voltage monitoring and manual reset for system supervision.
Can the MAX6715AUTZGD3+T monitor a 2.5V supply on VCC2?
Yes, the MAX6715AUTZGD3+T supports VCC2 inputs from 0.9V to 3.3V, making 2.5V fully compatible. Its factory-trimmed VCC2 threshold of 3.075V will assert reset if the 2.5V rail drops below that level - which is appropriate for detecting catastrophic failure, though not for fine-grained 2.5V regulation monitoring. For precise 2.5V supervision, a different threshold variant (e.g., 'H' = 1.275V or 'I' = 1.388V) would be required, but the MAX6715AUTZGD3+T remains valid for gross fault detection on 2.5V rails.
What is the function of Pin 6 (NC) on the MAX6715AUTZGD3+T?
Pin 6 on the MAX6715AUTZGD3+T is designated NC (No Connect) and is internally unconnected. It must remain floating - neither tied to GND nor VCC - as specified in the official datasheet. This pin exists for package compatibility across the MAX6715A–MAX6729A family but serves no electrical function in this variant. Leaving it unconnected ensures correct operation and avoids potential latch-up or leakage paths in the MAX6715AUTZGD3+T.
Is the MAX6715AUTZGD3+T RoHS compliant and lead-free?
Yes, the MAX6715AUTZGD3+T is RoHS compliant and lead-free. The '+' in the package suffix 'U6+1' explicitly denotes RoHS-compliant packaging per Maxim Integrated documentation. It meets EU Directive 2011/65/EU and is suitable for use in environmentally regulated markets including automotive and medical devices. The MAX6715AUTZGD3+T carries full material declarations and is qualified for reflow soldering per JEDEC J-STD-020.
MAX6715AUTZGD3+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, 2.313V
- 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
MAX6715AUTZGD3+T FAQ
1.How can I place an order for MAX6715AUTZGD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6715AUTZGD3+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 MAX6715AUTZGD3+T reliable?
The price and inventory of MAX6715AUTZGD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6715AUTZGD3+T is usually 5 days.
3.What payment methods are accepted for MAX6715AUTZGD3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6715AUTZGD3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6715AUTZGD3+T?
MAX6715AUTZGD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6715AUTZGD3+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 MAX6715AUTZGD3+T?
For technical support, including MAX6715AUTZGD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6715AUTZGD3+T requirements.
6.How does Aetrix verify that MAX6715AUTZGD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6715AUTZGD3+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 MAX6715AUTZGD3+T meets industry standards.
7.What is the process for return or replacement of MAX6715AUTZGD3+T?
All MAX6715AUTZGD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6715AUTZGD3+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 MAX6715AUTZGD3+T part is unused and in its original packaging.
Return procedure for MAX6715AUTZGD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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