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Analog Devices Inc./Maxim Integrated MAX6715UTZGD3-T
- Part No.:
- MAX6715UTZGD3-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6715UTZGD3-T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
MAX6715UTZGD3-T from Maxim Integrated is a dual-voltage microprocessor supervisory IC monitoring VCC1 (primary) and VCC2 (secondary) supplies, with factory-trimmed reset thresholds of 4.625V (VTH1) and 3.075V (VTH2), 210ms minimum reset timeout, push-pull active-low RST output, and operation from -40°C to +85°C in SOT23-6 package. It ensures reliable system reset during power-up, brownout, or undervoltage events in multivoltage embedded systems.
For engineers reviewing the MAX6715UTZGD3-T datasheet, MAX6715UTZGD3-T pinout, MAX6715UTZGD3-T application, or MAX6715UTZGD3-T equivalent, key selection criteria include dual-supply threshold accuracy (±1.5% over temperature), guaranteed reset validity down to VCC1/VCC2 = 0.8V, low 14µA typical supply current at 3.6V, and immunity to sub-20µs VCC transients.
Technical Context
The MAX6715UTZGD3-T integrates two independent voltage comparators with precision internal references, a programmable reset timeout timer, and push-pull reset driver referenced to VCC1. Its reset logic asserts RST low when either VCC1 falls below 4.625V or VCC2 falls below 3.075V, and holds RST low for ≥210ms after both supplies recover above their thresholds.
It features an internal 50kΩ pullup on MR (manual reset input), supports TTL/CMOS-compatible MR triggering, and guarantees correct RST logic state with VCC1 or VCC2 as low as 0.8V - enabling robust reset assertion during deep brownout conditions without external support circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Reset Threshold | 4.625V (typ), ±1.5% max tolerance over -40°C to +85°C - ensures precise primary supply monitoring for 5V/3.3V system rails |
| VCC2 Reset Threshold | 3.075V (typ), ±1.5% max tolerance - enables accurate secondary supply supervision for I/O or auxiliary rails |
| Reset Timeout Period | 210ms (min), factory-set by D3 suffix - provides sufficient hold time for µP initialization and peripheral stabilization |
| Supply Current | 14µA (typ) at 3.6V - minimizes quiescent power in battery-backed or energy-sensitive applications |
| Reset Output Type | Push-pull active-low RST referenced to VCC1 - eliminates need for external pullup and drives directly into µP reset pin |
| Operating Temperature | -40°C to +85°C - qualified for industrial and telecom equipment environments |
| Reset Validity Voltage | Guaranteed down to VCC1 or VCC2 = 0.8V - ensures deterministic reset behavior during severe brownout |
Pinout & Package
MAX6715UTZGD3-T is housed in a 6-pin SOT23-6 package (2.9mm × 1.6mm × 1.1mm), surface-mount, RoHS-compliant, with gull-wing leads and thermal pad not connected.
| 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 timeout |
| 2 | GND | Analog/digital ground reference for all internal comparators, timer, and output driver |
| 3 | MR | Active-low manual reset input with internal 50kΩ pullup to VCC1; resets system when pulled low |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V range); powers internal VCC2 comparator and sets VTH2 threshold |
| 5 | VCC1 | Primary supply input (1.8V–5.0V range); powers device core, sets VTH1 threshold, and references RST output |
| 6 | NC | No connect - internally unconnected; must be left floating or tied to GND per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous supervision of VCC1 (4.625V) and VCC2 (3.075V) with separate comparators avoids single-point failure in multirail systems |
| Factory-trimmed precision thresholds | ±1.5% max VTH tolerance over full temperature range eliminates need for external calibration or trimming resistors |
| Immunity to short VCC transients | Rejects negative-going glitches <20µs duration even with 100mV overdrive - prevents spurious resets in noisy power environments |
| Low-power operation | 14µA typical ICC at 3.6V enables use in always-on, battery-powered, or energy-harvesting subsystems |
| Guaranteed reset validity at low VCC | Functional reset assertion guaranteed with VCC1 or VCC2 ≥ 0.8V - supports graceful shutdown during deep brownout |
Applications
| Computers/Servers | Telecom Equipment |
|---|---|
|
Use Scenario: Monitoring 5V primary and 3.3V I/O rails during cold start and hot-swap events in server backplanes. IC Role / Device Role / Timing Role: Dual-supply supervisor asserting synchronized reset to CPU, memory controller, and PCIe switch upon any rail fault. Use Value: Prevents metastability and latch-up by ensuring all logic domains reset coherently before clock enable. |
Use Scenario: Supervising line-card power supplies in carrier-grade routers where 48V DC-DC outputs feed 3.3V and 1.2V rails. IC Role / Device Role / Timing Role: Primary/secondary voltage monitor triggering failover sequencing and alarm reporting via MR input. Use Value: Enables deterministic system recovery within 210ms timeout, meeting ITU-T G.8262 holdover timing requirements. |
| Industrial PLCs | Portable Medical Devices |
|
Use Scenario: Ensuring safe startup of ARM-based controller and isolated analog front-end in programmable logic controllers. IC Role / Device Role / Timing Role: Brownout detector for 24V-derived 5V and 3.3V supplies, interfacing directly to µP reset pin via push-pull RST. Use Value: Eliminates external pullup resistor and reduces BOM count while maintaining >0.8V reset validity for wide-input DC-DC operation. |
Use Scenario: Power sequencing validation in handheld ultrasound units using Li-ion battery (3.0–4.2V) and buck-boost regulated 3.3V/1.8V rails. IC Role / Device Role / Timing Role: Dual-rail supervisor enforcing minimum 210ms reset hold time after battery insertion or charger connection. Use Value: Guarantees complete firmware initialization before sensor activation, preventing erroneous diagnostics or actuator motion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6316US29D3-T | Single-supply (VCC only), 2.93V threshold, same 210ms timeout, SOT23-5 package | Lacks VCC2 monitoring - suitable only for single-rail systems; requires redesign for dual-supply use | Select when supervising only one critical rail and board space is constrained (5-pin vs. 6-pin) |
| TPS3808G33DBVR | Single-supply (VCC), 3.3V threshold, adjustable timeout (1ms–10s), open-drain RST, SOT23-5 | No secondary supply monitoring; requires external pullup; higher 20µA ICC; wider timeout flexibility | Choose when timeout customization is required and VCC2 supervision is handled separately or unnecessary |
Compared with MAX6715UTZGD3-T, MAX6316US29D3-T reduces functionality to single-rail supervision in a smaller footprint, while TPS3808G33DBVR trades dual-monitoring capability for timeout programmability and higher quiescent current - neither offers direct pin-to-pin replacement without schematic or layout changes.
Availability
MAX6715UTZGD3-T is available at Aetrix Electronics and suitable for computers/servers, telecom/networking equipment, and industrial PLCs requiring stable component supply, long-term lifecycle support, and guaranteed reset performance across extended temperature ranges.
Supply support for MAX6715UTZGD3-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 power, sensing, interface, and reliability-critical applications.
The MAX6715–MAX6729 family delivers ultra-low-voltage, dual/triple-supply supervisory circuits optimized for space-constrained, multirail embedded systems demanding precision reset timing and robust brownout immunity.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6715UTZGD3-T?
The MAX6715UTZGD3-T has factory-trimmed reset thresholds of 4.625V (VTH1) for VCC1 and 3.075V (VTH2) for VCC2, with ±1.5% maximum tolerance over the full -40°C to +85°C operating temperature range. These values are fixed by the "ZG" suffix per Maxim's Reset Voltage Threshold Suffix Guide and do not require external configuration.
Does the MAX6715UTZGD3-T support manual reset, and how is it implemented?
Yes, the MAX6715UTZGD3-T includes an active-low manual reset input (MR) on Pin 3, featuring an internal 50kΩ pullup resistor to VCC1. Pulling MR low forces an immediate reset assertion on RST, which remains active for the full 210ms timeout period after MR returns high. No external components are needed for basic operation.
What is the function of Pin 6 on the MAX6715UTZGD3-T, and how should it be handled?
Pin 6 on the MAX6715UTZGD3-T is a no-connect (NC) terminal - it is internally unconnected and serves no electrical function. Per Maxim's datasheet guidance, it should be left floating or tied to GND in PCB layout to minimize noise coupling; it must never be connected to VCC or any signal net.
How does the MAX6715UTZGD3-T ensure reliable reset during deep brownout conditions?
The MAX6715UTZGD3-T guarantees valid reset output logic state with either VCC1 or VCC2 ≥ 0.8V - significantly lower than most supervisors. This allows deterministic reset assertion even during severe brownout, preventing undefined µP behavior. Its push-pull RST output maintains strong drive capability without external pullups down to this voltage.
Is the MAX6715UTZGD3-T compatible with 1.8V-only systems?
No - the MAX6715UTZGD3-T requires VCC1 ≥ 1.8V (per datasheet absolute min), but its fixed VTH1 = 4.625V and VTH2 = 3.075V thresholds are incompatible with 1.8V supply monitoring. For 1.8V systems, consider MAX6720 or MAX6724 variants with lower threshold suffixes (e.g., "W" or "E") instead of MAX6715UTZGD3-T.
MAX6715UTZGD3-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, 2.313V
- 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
MAX6715UTZGD3-T FAQ
1.How can I place an order for MAX6715UTZGD3-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6715UTZGD3-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 MAX6715UTZGD3-T reliable?
The price and inventory of MAX6715UTZGD3-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6715UTZGD3-T is usually 5 days.
3.What payment methods are accepted for MAX6715UTZGD3-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6715UTZGD3-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6715UTZGD3-T?
MAX6715UTZGD3-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6715UTZGD3-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 MAX6715UTZGD3-T?
For technical support, including MAX6715UTZGD3-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6715UTZGD3-T requirements.
6.How does Aetrix verify that MAX6715UTZGD3-T is sourced from the original manufacturer or authorized distributors?
All MAX6715UTZGD3-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 MAX6715UTZGD3-T meets industry standards.
7.What is the process for return or replacement of MAX6715UTZGD3-T?
All MAX6715UTZGD3-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6715UTZGD3-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 MAX6715UTZGD3-T part is unused and in its original packaging.
Return procedure for MAX6715UTZGD3-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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