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Analog Devices Inc./Maxim Integrated MAX6715UTWGD3-T
- Part No.:
- MAX6715UTWGD3-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6715UTWGD3-T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
MAX6715UTWGD3-T from Maxim Integrated is a dual-voltage microprocessor supervisory circuit in SOT23-6 package, monitoring VCC1 (primary) and VCC2 (secondary) supplies with factory-trimmed thresholds of 4.625V and 3.075V respectively, 210ms minimum reset timeout, and push-pull active-low RST output. It guarantees valid reset assertion down to VCC1 or VCC2 = 0.8V and draws only 14µA typical supply current at 3.6V - used in telecom power sequencing and server board management.
For engineers reviewing the MAX6715UTWGD3-T datasheet, MAX6715UTWGD3-T pinout, MAX6715UTWGD3-T application, or MAX6715UTWGD3-T equivalent, key selection criteria include dual-supply threshold accuracy (±1.5% over temperature), immunity to sub-20µs VCC transients, guaranteed reset validity at ultra-low supply voltage (0.8V), and compatibility with manual reset, watchdog-free system architectures.
Technical Context
The MAX6715UTWGD3-T implements two independent voltage comparators with internal 20ppm/°C tempco references, driving a single reset timeout timer with fixed 210ms (min) delay. Its push-pull RST output is referenced to VCC1 and sinks up to 3.2mA at 4.5V, ensuring robust interface with µP reset inputs without external pullup.
It lacks RSTIN, WDI, PFI/PFO, and RST2 terminals - confirmed by Selector Guide and Pin Description tables - making it a minimal dual-monitoring variant optimized for cost-sensitive, non-watchdog, non-power-fail applications requiring only primary/secondary supply supervision and manual reset capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.625V (typ), ±1.5% over -40°C to +85°C - sets reliable brownout detection for 5V rails |
| VCC2 Threshold | 3.075V (typ), ±1.5% over -40°C to +85°C - enables precise monitoring of 3.3V I/O or auxiliary supplies |
| Reset Timeout | 210ms (min), fixed - ensures sufficient hold time for µP initialization and peripheral settling |
| Supply Current | 14µA (typ) at 3.6V - supports battery-backed systems and low-power always-on monitoring |
| Valid Reset Down To | VCC1 or VCC2 ≥ 0.8V - maintains deterministic reset state during deep brownout or soft-start conditions |
| Output Type | Push-pull active-low RST - eliminates need for external pullup resistor and reduces BOM count |
| Operating Temp | -40°C to +85°C - qualified for industrial and telecom equipment environments |
Pinout & Package
MAX6715UTWGD3-T 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 when either supply falls below threshold or MR is pulled low |
| 2 | GND | Analog/digital ground reference for all internal comparators and timer circuits |
| 3 | MR | Active-low manual reset input with 50kΩ internal pullup to VCC1; forces reset on logic-low pulse ≥1µs |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V range); powers internal circuitry when > VCC1 and sets VCC2 threshold comparator reference |
| 5 | VCC1 | Primary supply input (1.8V–5.0V range); powers device when > VCC2 and sets VCC1 threshold comparator reference |
| 6 | NC | No connect - pin 6 is unconnected per MAX6715-specific pin mapping; must be left floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous supervision of VCC1 and VCC2 with separate, factory-trimmed thresholds - eliminates need for two discrete supervisors |
| Guaranteed reset validity at 0.8V | Ensures deterministic reset behavior during severe brownout or cold-start conditions where supply may dip below 1.0V |
| Immunity to short VCC transients | Rejects negative-going glitches <20µs (at 100mV overdrive), preventing spurious resets in noisy power environments |
| Low quiescent current | 14µA typical at 3.6V - extends battery life in portable equipment and enables always-on monitoring in standby modes |
| Push-pull RST output | Drives µP reset pin directly without external pullup, reducing component count and PCB area vs. open-drain alternatives |
Applications
| Telecom Line Card Power Sequencing | Industrial PLC CPU Module |
|---|---|
Use Scenario: Dual-rail power-up of FPGA + ARM core with strict sequencing requirements between 5V analog and 3.3V digital supplies. IC Role / Device Role / Timing Role: Supervises VCC1 (5V) and VCC2 (3.3V) independently; asserts RST until both rails stabilize above thresholds and hold for 210ms. Use Value: Prevents FPGA configuration corruption and ARM boot failure caused by premature release of reset during rail ramp-up. |
Use Scenario: Embedded controller in programmable logic controller requiring fail-safe restart after AC line interruption or undervoltage event. IC Role / Device Role / Timing Role: Monitors main 24V DC-DC output (via resistor divider to VCC1) and 3.3V logic rail (VCC2); triggers hardware reset on either rail collapse. Use Value: Eliminates software-only watchdog dependency, enabling guaranteed recovery even if firmware hangs during power anomaly. |
| Network Switch ASIC Management | Medical Diagnostic Imaging Subsystem |
Use Scenario: High-reliability Ethernet switch with multi-core ASIC powered by 1.2V core and 1.8V I/O rails. IC Role / Device Role / Timing Role: Configured as VCC1=1.8V (I/O), VCC2=1.2V (core); RST holds ASIC in reset until both supplies meet tolerance and timeout expires. Use Value: Avoids ASIC latch-up or metastability during asymmetric rail ramp due to independent threshold tracking and hysteresis. |
Use Scenario: Portable ultrasound subsystem with battery-backed real-time processor and analog front-end requiring deterministic power-on reset. IC Role / Device Role / Timing Role: Supervises 3.3V processor rail (VCC1) and 2.5V ADC reference rail (VCC2); MR pin enables emergency reset via front-panel button. Use Value: Ensures clean startup of time-critical imaging pipeline by guaranteeing reset remains asserted until both precision rails settle within ±1.5%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6316LUK46D3-T | Single-supply monitor (VCC only), 4.63V threshold, 200ms timeout, SOT23-5 package | Lacks VCC2 monitoring - requires separate IC for secondary rail supervision | Select when only primary rail supervision is needed and board space is constrained (5-pin vs. 6-pin) |
| TPS3808G33DBVR | Single-supply, 3.3V threshold, 200ms timeout, push-pull RST, 1.8–6.0V VDD range | No dual-monitoring capability; no MR input; higher ICC (22µA typ) | Choose for cost-sensitive 3.3V-only systems where secondary rail monitoring is handled elsewhere |
Compared with MAX6715UTWGD3-T, MAX6316LUK46D3-T reduces footprint but sacrifices dual-rail coverage, while TPS3808G33DBVR offers broader VDD range but cannot replace the coordinated VCC1/VCC2 supervision critical for multivoltage SoC power integrity.
Availability
MAX6715UTWGD3-T is available at Aetrix Electronics and suitable for telecom infrastructure, industrial control, and medical diagnostic equipment requiring stable component supply, long-term lifecycle support, and guaranteed reset reliability under brownout conditions.
Supply support for MAX6715UTWGD3-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 power management, sensing, and connectivity in demanding industrial and communications applications.
The MAX6715–MAX6729 family delivers ultra-low-voltage, dual/triple-supply supervision in miniature SOT23 packages - engineered specifically for space-constrained, multirail systems needing deterministic reset behavior across wide temperature and supply ranges.
FAQ
What are the exact reset threshold voltages for MAX6715UTWGD3-T?
The MAX6715UTWGD3-T has factory-trimmed reset thresholds of 4.625V (VCC1, falling) and 3.075V (VCC2, falling), as indicated by the "WG" suffix per Maxim's Reset Voltage Threshold Suffix Guide. These values are guaranteed over -40°C to +85°C with ±1.5% tolerance and 20ppm/°C tempco, enabling precise brownout detection for 5V and 3.3V rails without external adjustment.
Does MAX6715UTWGD3-T support watchdog or power-fail functionality?
No, MAX6715UTWGD3-T does not include watchdog input (WDI), power-fail input/output (PFI/PFO), or adjustable RSTIN monitoring - confirmed by its placement in the Selector Guide (no checkmarks for those features) and absence of corresponding pins (pins 5 and 6 are VCC1 and NC). It is strictly a dual-supply supervisor with manual reset and push-pull RST output.
What is the function of pin 6 on MAX6715UTWGD3-T?
Pin 6 on MAX6715UTWGD3-T is designated NC (No Connect) per Maxim's Pin Description table. It is internally unconnected and must be left floating or tied to GND per PCB layout best practices - unlike MAX6716/MAX6719 variants where pin 6 serves as RST2 or RSTIN. This simplifies routing and avoids unintended coupling in high-density layouts.
How does MAX6715UTWGD3-T ensure reset validity during deep brownout?
MAX6715UTWGD3-T guarantees correct reset output logic state down to VCC1 or VCC2 = 0.8V, verified across temperature and process corners. Its internal bandgap reference and comparator design remain functional at this level, ensuring RST stays asserted until both supplies recover above their thresholds and the 210ms timeout completes - critical for systems experiencing slow power decay.
Can MAX6715UTWGD3-T be used with a 1.8V primary supply?
Yes, MAX6715UTWGD3-T supports VCC1 from 1.8V to 5.0V per datasheet specifications. However, its fixed 4.625V VCC1 threshold means it is intended for 5V nominal rails - using it with 1.8V requires external resistor divider to scale the supply into the detectable range, which adds error and leakage. For native 1.8V monitoring, select a variant with "W" or "E" VCC1 suffix (e.g., MAX6715UTED3-T).
MAX6715UTWGD3-T 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, 1.665V
- 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-23-6
MAX6715UTWGD3-T FAQ
1.How can I place an order for MAX6715UTWGD3-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6715UTWGD3-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 MAX6715UTWGD3-T reliable?
The price and inventory of MAX6715UTWGD3-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6715UTWGD3-T is usually 5 days.
3.What payment methods are accepted for MAX6715UTWGD3-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6715UTWGD3-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6715UTWGD3-T?
MAX6715UTWGD3-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6715UTWGD3-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 MAX6715UTWGD3-T?
For technical support, including MAX6715UTWGD3-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6715UTWGD3-T requirements.
6.How does Aetrix verify that MAX6715UTWGD3-T is sourced from the original manufacturer or authorized distributors?
All MAX6715UTWGD3-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 MAX6715UTWGD3-T meets industry standards.
7.What is the process for return or replacement of MAX6715UTWGD3-T?
All MAX6715UTWGD3-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6715UTWGD3-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 MAX6715UTWGD3-T part is unused and in its original packaging.
Return procedure for MAX6715UTWGD3-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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