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Analog Devices Inc./Maxim Integrated MAX6716UTTGD3-T
- Part No.:
- MAX6716UTTGD3-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6716UTTGD3-T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:7,500
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Product details
Overview
MAX6716UTTGD3-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 manual reset input. It ensures reliable system boot and brownout recovery in space-constrained embedded power management.
For engineers reviewing the MAX6716UTTGD3-T datasheet, MAX6716UTTGD3-T pinout, MAX6716UTTGD3-T application, or MAX6716UTTGD3-T equivalent, key selection criteria include dual-supply threshold accuracy (±1.5% over -40°C to +85°C), guaranteed reset validity down to VCC1/VCC2 = 0.8V, low 14µA typical supply current at 3.6V, and SOT23-6 package compatibility with high-density PCB layouts.
Technical Context
The MAX6716UTTGD3-T integrates two independent voltage comparators with precision internal references (VTH1 = 4.625V, VTH2 = 3.075V), a digital reset timeout timer (210ms min), and push-pull RST output logic referenced to VCC1. Its reset assertion is triggered by any monitored supply falling below threshold or MR input activation.
It features an internal 50kΩ pullup on MR, supports VCC1/VCC2 operation from 0.8V to 5.5V, and guarantees correct reset state during brownout conditions where either supply remains ≥0.8V - enabling robust operation in battery-backed or multi-rail systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.625V (typ), ±1.5% tolerance over temp - sets precise power-good detection for 5V/4.8V rails |
| VCC2 Threshold | 3.075V (typ), ±1.5% tolerance over temp - enables accurate monitoring of 3.3V I/O or auxiliary supplies |
| Reset Timeout | 210ms (min), fixed via D3 suffix - ensures sufficient hold time for processor initialization and peripheral stabilization |
| Supply Current | 14µA (typ) at 3.6V - minimizes quiescent load in always-on or battery-critical subsystems |
| Operating Temp | -40°C to +85°C - qualified for industrial and telecom equipment environments |
| Reset Output Type | Push-pull, active-low RST - eliminates need for external pullup and drives directly into µP reset pins |
| MR Input Logic | Active-low with 50kΩ internal pullup to VCC1 - simplifies manual reset implementation using momentary switch to GND |
Pinout & Package
MAX6716UTTGD3-T is housed in a 6-pin SOT23-6 package (2.9mm × 1.6mm × 1.1mm), optimized for high-density PCB layouts and reflow-compatible assembly.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1; asserts when VCC1 < 4.625V, VCC2 < 3.075V, or MR is pulled low |
| 2 | GND | Analog/digital ground reference for all internal comparators and timing circuitry |
| 3 | MR | Active-low manual reset input with internal 50kΩ pullup to VCC1; reset persists for full 210ms timeout after release |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V range); powers internal VCC2 comparator and sets VTH2 reference point |
| 5 | VCC1 | Primary supply input (1.8V–5.0V range); powers device core, sets VTH1 reference, and sources 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 primary (VCC1) and secondary (VCC2) rails with separate, factory-trimmed thresholds |
| Guaranteed reset validity down to 0.8V | Ensures deterministic reset behavior during deep brownout - critical for fail-safe shutdown in battery-powered systems |
| Immunity to short VCC transients | Rejects glitches ≤20µs (at 100mV overdrive), preventing spurious resets in noisy power environments |
| Low 14µA supply current | Reduces standby power consumption in always-on supervisory paths - extends battery life in portable equipment |
| Push-pull RST output | Eliminates external pullup resistor requirement and provides strong drive capability (3.2mA sink @ 4.5V) |
Applications
| Industrial PLC Power Sequencing | Telecom Line Card Voltage Monitoring |
|---|---|
Use Scenario: Supervising 5V main and 3.3V I/O rails during cold start and hot-swap events in modular line cards. IC Role / Device Role / Timing Role: Dual-threshold supervisor asserting reset until both rails stabilize above 4.625V and 3.075V, with 210ms timeout ensuring FPGA configuration completion. Use Value: Prevents partial initialization and bus contention by enforcing strict dual-rail power-good sequencing before µP release. |
Use Scenario: Ensuring reliable boot of DSP-based signal processing modules powered from distributed DC-DC converters. IC Role / Device Role / Timing Role: Monitoring VCC1 (4.8V analog supply) and VCC2 (3.3V digital supply) with push-pull RST driving TI C6000 reset pin directly. Use Value: Eliminates external level-shifting or pullup components, reducing BOM count and improving thermal reliability in sealed chassis. |
| Medical Infusion Pump Controller | Automotive Body Control Module (BCM) |
Use Scenario: Validating dual power sources (main battery and backup supercapacitor) before enabling motor drivers and safety-critical firmware. IC Role / Device Role / Timing Role: Asserting reset if either VCC1 (5V system rail) or VCC2 (3.3V MCU core rail) drops below threshold during transient load switching. Use Value: Guarantees reset remains asserted down to 0.8V on either rail - enabling safe shutdown even during severe brownout conditions. |
Use Scenario: Monitoring 5V CAN transceiver supply and 3.3V microcontroller core voltage in 12V automotive subsystems. IC Role / Device Role / Timing Role: Providing synchronized reset release only after both supplies exceed factory-trimmed thresholds, with MR input supporting service-mode forced reset. Use Value: Reduces ECU restart failures caused by asymmetric rail ramp-up during cold cranking or jump-start scenarios. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6715UTTGD3-T | Open-drain RST output instead of push-pull; requires external pullup resistor | Suitable where µP reset pin is open-drain compatible or level translation is needed | Select when board layout already includes pullup or when interfacing with legacy µPs requiring open-drain reset signaling |
| TPS3808G33DBVR | Single-supply monitor (3.3V threshold only); no VCC2 input; 200ms timeout; 2.5µA IQ | Limited to single-rail systems; lacks dual-threshold flexibility and MR input hysteresis | Choose only for cost-sensitive, single-voltage applications where secondary rail supervision is unnecessary |
Compared with MAX6716UTTGD3-T, MAX6715UTTGD3-T requires external biasing but offers identical threshold accuracy and timing, while TPS3808G33DBVR reduces quiescent current by 82% but sacrifices dual-rail monitoring and manual reset functionality - making it unsuitable for systems requiring coordinated multi-supply validation.
Availability
MAX6716UTTGD3-T is available at Aetrix Electronics and suitable for industrial PLC power sequencing, telecom line card voltage monitoring, and medical infusion pump controller designs requiring stable component supply, long-term lifecycle support, and guaranteed reset behavior across temperature extremes.
Supply support for MAX6716UTTGD3-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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing markets.
The MAX6715–MAX6729 family was designed specifically for ultra-low-voltage, multi-rail microprocessor supervision in space-constrained systems - delivering precision dual/three-supply monitoring with minimal external components and guaranteed operation down to 0.8V.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6716UTTGD3-T?
The MAX6716UTTGD3-T has factory-trimmed reset thresholds of 4.625V (VTH1) for VCC1 and 3.075V (VTH2) for VCC2, with ±1.5% tolerance over the full -40°C to +85°C operating range. These values are fixed by the "TG" suffix in the part number and confirmed in Maxim's Reset Voltage Threshold Suffix Guide. The MAX6716UTTGD3-T does not support adjustable thresholds - only factory-set dual-voltage monitoring.
Does the MAX6716UTTGD3-T support monitoring a third voltage rail?
No, the MAX6716UTTGD3-T is a dual-voltage supervisor and does not include RSTIN or PFI inputs. It monitors only VCC1 and VCC2. For triple-voltage monitoring, consider MAX6719UTTGD3-T (with RSTIN) or MAX6728KA-T (with PFI/PFO). The MAX6716UTTGD3-T pinout omits RSTIN, PFI, WDI, and PFO terminals - confirming its dedicated dual-supply role.
What is the function of Pin 6 (NC) on the MAX6716UTTGD3-T?
Pin 6 on the MAX6716UTTGD3-T is designated NC (No Connect) and is internally unconnected. It must be left floating or tied to GND per Maxim's layout recommendations to avoid parasitic coupling. This differs from related variants like MAX6729 (which uses Pin 6 for PFO) - confirming that MAX6716UTTGD3-T has no power-fail or watchdog functionality.
How does the manual reset (MR) input behave on the MAX6716UTTGD3-T?
The MR input on MAX6716UTTGD3-T is active-low with an internal 50kΩ pullup to VCC1. Pulling MR low forces an immediate reset assertion, which remains active for the full 210ms timeout period after MR returns high. Glitch rejection is 100ns, and minimum pulse width is 1µs. No external components are required - a simple momentary switch from MR to GND suffices for field service reset.
Is the MAX6716UTTGD3-T compatible with 1.8V logic systems?
Yes, the MAX6716UTTGD3-T guarantees valid reset operation when either VCC1 or VCC2 ≥ 0.8V, and supports VCC2 inputs as low as 0.9V. While its VTH2 = 3.075V targets 3.3V rails, it can supervise 1.8V systems via VCC1 (if primary rail is ≥1.8V) and tolerate VCC2 down to 0.9V - but note that 1.8V itself falls below the VTH2 threshold and cannot serve as the monitored secondary supply without external scaling.
MAX6716UTTGD3-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, 3.075V
- Output:
- Push-Pull, Totem Pole
- 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
MAX6716UTTGD3-T FAQ
1.How can I place an order for MAX6716UTTGD3-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6716UTTGD3-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 MAX6716UTTGD3-T reliable?
The price and inventory of MAX6716UTTGD3-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6716UTTGD3-T is usually 5 days.
3.What payment methods are accepted for MAX6716UTTGD3-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6716UTTGD3-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6716UTTGD3-T?
MAX6716UTTGD3-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6716UTTGD3-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 MAX6716UTTGD3-T?
For technical support, including MAX6716UTTGD3-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6716UTTGD3-T requirements.
6.How does Aetrix verify that MAX6716UTTGD3-T is sourced from the original manufacturer or authorized distributors?
All MAX6716UTTGD3-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 MAX6716UTTGD3-T meets industry standards.
7.What is the process for return or replacement of MAX6716UTTGD3-T?
All MAX6716UTTGD3-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6716UTTGD3-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 MAX6716UTTGD3-T part is unused and in its original packaging.
Return procedure for MAX6716UTTGD3-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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