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Analog Devices Inc./Maxim Integrated MAX6715UTSDD3
- Part No.:
- MAX6715UTSDD3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6715UTSDD3.pdf
- Description:
- IC SUPERVISOR MPU
- Quantity:
- Payment:
- Shipping:
Inventory:2,418
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Product details
Overview
MAX6715UTSDD3 from Maxim Integrated is a dual-voltage microprocessor supervisory IC monitoring VCC1 (primary supply) and VCC2 (secondary supply) with factory-trimmed reset thresholds, 210ms minimum reset timeout, push-pull active-low RST output, and manual reset input - used in multivoltage embedded systems to ensure reliable power-on reset and brownout protection.
For engineers reviewing the MAX6715UTSDD3 datasheet, MAX6715UTSDD3 pinout, MAX6715UTSDD3 application, or MAX6715UTSDD3 equivalent, this page delivers verified electrical specs, SOT23-6 package details, dual-supply threshold behavior, reset timing accuracy, and real-world substitution guidance for industrial and telecom power management designs.
Technical Context
The MAX6715UTSDD3 integrates two independent voltage comparators with precision internal references (VTH1 = 4.625V, VTH2 = 3.075V), a 210ms reset timeout timer, and push-pull RST output referenced to VCC1. It asserts reset when either VCC1 falls below 4.625V or VCC2 drops below 3.075V, and holds reset for ≥210ms after both supplies recover.
It features a manual reset input (MR) with 50kΩ internal pullup to VCC1, guaranteed reset validity down to VCC1 or VCC2 = 0.8V, and immunity to sub-20µs VCC transients. No watchdog, RSTIN, PFI/PFO, or third-voltage monitoring is included - confirmed by Selector Guide and Ordering Information.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.625V (factory-trimmed, ±125mV tolerance) - ensures reset assertion before 4.5V logic rail collapse |
| VCC2 Threshold | 3.075V (factory-trimmed, ±75mV tolerance) - matches common 3.3V I/O supply brownout margin |
| Reset Timeout | 210ms (minimum) - provides sufficient hold time for FPGA/ASIC configuration and boot ROM initialization |
| Supply Current | 14µA typical at 3.6V - enables use in battery-backed or ultra-low-power standby modes |
| Operating Temp | -40°C to +85°C - qualified for industrial temperature range without derating |
| Reset Output | Push-pull, active-low, referenced to VCC1 - eliminates external pullup and supports direct µP reset pin drive |
| MR Input | Active-low with 50kΩ internal pullup to VCC1 - allows momentary switch-to-GND interface without external components |
Pinout & Package
MAX6715UTSDD3 is housed in a 6-pin SOT23-6 package (2.9mm × 1.6mm × 1.1mm), RoHS-compliant, with gull-wing leads and thermal pad option not present. Pin 1 marked via dot; pin numbering follows standard SOT23 counterclockwise from mark.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1; sinks 3.2mA at VCC1 ≥ 4.5V; drives µP reset pin directly |
| 2 | GND | Analog/digital ground reference for all internal comparators and timer; must be low-impedance connection |
| 3 | MR | Active-low manual reset input; internally pulled up to VCC1 (50kΩ); 1µs minimum pulse width required |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V range); powers internal VCC2 comparator and sets VTH2 = 3.075V |
| 5 | VCC1 | Primary supply input (1.8V–5.0V range); powers device core and sets VTH1 = 4.625V; defines RST output voltage level |
| 6 | NC | No connect - internally unconnected; must remain floating or tied to GND per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous VCC1 (4.625V) and VCC2 (3.075V) supervision with separate comparators - prevents false resets during asymmetric rail sequencing |
| Guaranteed reset validity down to 0.8V | Ensures clean reset assertion even during deep brownout of either supply - critical for nonvolatile memory write integrity |
| 210ms minimum reset timeout | Meets JEDEC JESD78 requirement for minimum reset pulse width in microprocessor-based systems |
| Push-pull RST output | Eliminates need for external pullup resistor - reduces BOM count and PCB area in space-constrained applications |
| Internal MR pullup | 50kΩ resistor to VCC1 enables single-switch manual reset - no external components required for field service reset |
Applications
| Telecom Line Card Power Management | Industrial PLC CPU Module |
|---|---|
Use Scenario: Monitors +5V primary and +3.3V I/O rails on a carrier-grade line card with hot-swap capability. IC Role / Device Role / Timing Role: Dual-rail supervisor asserting active-low reset to ARM Cortex-A9 processor and FPGA upon any rail dropout. Use Value: Prevents partial configuration and metastability by holding reset ≥210ms until both rails stabilize post-hot-swap insertion. |
Use Scenario: Ensures deterministic startup of a modular PLC CPU running real-time OS with safety-critical firmware. IC Role / Device Role / Timing Role: Supervises 5V backplane supply and 3.3V logic supply; triggers hardware reset if either falls below threshold during cold start. Use Value: Guarantees µP enters known state before executing bootloader - eliminates race conditions in safety-rated control loops. |
| Network Router Control Plane | Medical Diagnostic Imaging Subsystem |
Use Scenario: Embedded in a multi-core network processor board where 5V and 3.3V rails power control-plane ASICs and DDR memory interfaces. IC Role / Device Role / Timing Role: Provides synchronized reset to all control-plane ICs using push-pull RST output referenced to VCC1. Use Value: Avoids timing skew between reset deassertion across chips - essential for deterministic PCIe link training and register initialization. |
Use Scenario: Used in an ultrasound beamformer module requiring fail-safe power sequencing for analog front-end and digital signal processors. IC Role / Device Role / Timing Role: Monitors main 5V analog supply and isolated 3.3V digital supply; asserts reset if analog rail sags during high-current transmit bursts. Use Value: Prevents corrupted image data acquisition by halting DSP execution before analog supply recovers - meets IEC 62304 Class C requirements. |
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 (4.63V only), SOT23-5, open-drain RST, no MR input, 200ms timeout | Lacks VCC2 monitoring and manual reset - suitable only for single-rail systems with external MR circuitry | Select only if design uses only one monitored rail and can add discrete MR logic |
| TPS3808G33DBVR | Single-supply (3.3V), SOT23-6, push-pull RST, MR input, 200ms timeout, lower ICC (1.8µA) | Monitors only VCC (3.3V); no secondary supply input - cannot replace dual-rail supervision function | Choose only for cost-sensitive 3.3V-only applications where VCC2 monitoring is unnecessary |
Compared with MAX6715UTSDD3, MAX6316LUK46D3-T omits VCC2 supervision and MR, limiting system-level fault coverage; TPS3808G33DBVR offers lower quiescent current but cannot monitor two independent rails - neither provides functional equivalence without redesign.
Availability
MAX6715UTSDD3 is available at Aetrix Electronics and suitable for telecom line cards, industrial PLCs, network router control planes, and medical imaging subsystems requiring stable component supply, long-term lifecycle support, and guaranteed dual-rail brownout detection.
Supply support for MAX6715UTSDD3 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 power management ICs for industrial, automotive, and communications markets - with emphasis on reliability, integration, and low-power operation.
The MAX6715–MAX6729 family was engineered specifically for multivoltage embedded systems needing compact, factory-trimmed dual/triple-supply supervision with guaranteed reset behavior down to 0.8V - targeting space-constrained telecom and industrial control applications.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on MAX6715UTSDD3?
The MAX6715UTSDD3 has factory-trimmed reset thresholds of 4.625V for VCC1 (±125mV) and 3.075V for VCC2 (±75mV), as defined by the "TS" suffix per Maxim's Reset Voltage Threshold Suffix Guide. These values are laser-trimmed during production and guaranteed over -40°C to +85°C - no external adjustment is possible on MAX6715UTSDD3.
Does MAX6715UTSDD3 include watchdog or power-fail functionality?
No, MAX6715UTSDD3 does not include watchdog timer, RSTIN, PFI, or PFO functionality. Per the Selector Guide and Functional Diagram, it is a dual-supply-only variant with manual reset (MR) and push-pull RST output. Watchdog and power-fail features appear only in MAX6721–MAX6729 variants - MAX6715UTSDD3 is strictly a two-rail supervisor.
What is the meaning of the "D3" suffix in MAX6715UTSDD3?
The "D3" suffix in MAX6715UTSDD3 specifies a 210ms minimum reset timeout period, per Maxim's Reset Timeout Period Suffix Guide. This value is fixed and factory-set - D3 corresponds to tRP = 210ms (min), distinct from D1 = 1.1ms, D2 = 13.2ms, D5 = 420ms, and D6 = 840ms options in the same family.
Can MAX6715UTSDD3 operate with VCC1 = 3.3V and VCC2 = 1.8V?
Yes, MAX6715UTSDD3 supports VCC1 from 1.8V to 5.0V and VCC2 from 0.9V to 3.3V per datasheet Absolute Maximum Ratings and Electrical Characteristics. However, its factory-trimmed thresholds (4.625V/3.075V) require VCC1 ≥ 4.5V and VCC2 ≥ 3.0V to function as intended - operating at 3.3V/1.8V would prevent reset assertion since both supplies remain above their thresholds.
Is MAX6715UTSDD3 pin-compatible with other MAX67xx devices in SOT23-6?
No, MAX6715UTSDD3 is not universally pin-compatible across the MAX67xx SOT23-6 variants. While it shares the same 6-pin SOT23-6 footprint, pin functions differ: MAX6715UTSDD3 uses Pin 6 as NC, whereas MAX6721–MAX6724 assign Pin 6 to WDI, and MAX6728/MAX6729 assign it to PFI. Always verify pin mapping per device-specific Pin Description table before substitution.
MAX6715UTSDD3 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:
- Power Supply Monitor
- 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 (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
MAX6715UTSDD3 FAQ
1.How can I place an order for MAX6715UTSDD3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6715UTSDD3 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 MAX6715UTSDD3 reliable?
The price and inventory of MAX6715UTSDD3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6715UTSDD3 is usually 5 days.
3.What payment methods are accepted for MAX6715UTSDD3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6715UTSDD3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6715UTSDD3?
MAX6715UTSDD3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6715UTSDD3 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 MAX6715UTSDD3?
For technical support, including MAX6715UTSDD3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6715UTSDD3 requirements.
6.How does Aetrix verify that MAX6715UTSDD3 is sourced from the original manufacturer or authorized distributors?
All MAX6715UTSDD3 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 MAX6715UTSDD3 meets industry standards.
7.What is the process for return or replacement of MAX6715UTSDD3?
All MAX6715UTSDD3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6715UTSDD3, 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 MAX6715UTSDD3 part is unused and in its original packaging.
Return procedure for MAX6715UTSDD3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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