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Analog Devices Inc./Maxim Integrated MAX6716UTLTD3-T
- Part No.:
- MAX6716UTLTD3-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6716UTLTD3-T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
MAX6716UTLTD3-T from Maxim Integrated is a dual-voltage microprocessor supervisory IC with factory-trimmed reset thresholds of 4.625V (VTH1) and 3.075V (VTH2), 210ms typical reset timeout, push-pull active-low RST output, and operation over –40°C to +85°C in a 6-pin SOT23 package. It monitors primary (VCC1) and secondary (VCC2) supply rails in multivoltage embedded systems to ensure reliable power-on reset and brownout protection.
For engineers reviewing the MAX6716UTLTD3-T datasheet, MAX6716UTLTD3-T pinout, MAX6716UTLTD3-T application, or MAX6716UTLTD3-T equivalent, this device serves as a precision dual-supply monitor for telecom power sequencing, industrial controller boot integrity, and battery-backed system supervision where guaranteed reset validity down to VCC = 0.8V and low 14µA supply current are critical.
Technical Context
The MAX6716UTLTD3-T implements two independent voltage comparators with ±1.5% threshold accuracy (4.625V/3.075V), internal 20ppm/°C tempco, and hysteresis of 0.5% of VTH. Its reset logic asserts RST low when either VCC1 or VCC2 falls below its respective threshold and holds reset for ≥140ms (min) after both supplies recover - matching the D3 timeout suffix specification.
This variant belongs to the MAX6715–MAX6729 family's push-pull RST configuration (per Selector Guide), lacks RSTIN/PFI/WDI pins (confirmed by pin mapping for MAX6716), and guarantees valid reset state with VCC1 or VCC2 ≥ 0.8V - enabling robust operation during deep brownouts without external pull resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VTH1 (Primary Threshold) | 4.625V (factory-trimmed, ±1.5% tolerance; ensures precise 5V rail monitoring with margin against 4.75V CPU VDD min) |
| VTH2 (Secondary Threshold) | 3.075V (factory-trimmed, ±1.5% tolerance; matches common 3.3V I/O rail with 5% headroom) |
| Reset Timeout (tRP) | 210ms typical (D3 suffix; provides sufficient hold time for FPGA/CPU initialization sequences) |
| Supply Current (ICC) | 14µA typical at 3.6V (enables >10-year battery life in always-on supervisory applications) |
| Operating Temperature | –40°C to +85°C (supports industrial-grade deployment without derating) |
| Reset Output Type | Push-pull active-low RST (drives directly to VCC1; eliminates need for external pullup resistor) |
| Valid Reset Down To | VCC1 or VCC2 ≥ 0.8V (guaranteed functional reset assertion during severe brownout conditions) |
Pinout & Package
Package: 6-pin SOT23-6 (JEDEC MO-178AA), 1.6mm × 2.9mm footprint, 0.95mm height, lead-free (RoHS-compliant).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST / RST1 | 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 comparators and internal logic; must be low-impedance connection |
| 3 | MR | Active-low manual reset input with 50kΩ internal pullup to VCC1; forces reset when pulled low for ≥1µs |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V range); powers internal comparator for VTH2 and enables VCC2-based reset assertion |
| 5 | VCC1 | Primary supply input (1.8V–5.0V range); powers core logic, drives RST output, and enables VCC1-based reset assertion |
| 6 | NC | No connect (unused pin per MAX6716 pin mapping; must remain unconnected or grounded per layout guidelines) |
Key Features
| Feature | Design Value |
|---|---|
| Dual factory-trimmed thresholds | 4.625V/3.075V with ±1.5% accuracy and 20ppm/°C tempco - eliminates external resistor calibration for 5V/3.3V rail monitoring |
| Guaranteed reset validity at low VCC | Operates correctly with VCC1 or VCC2 ≥ 0.8V - ensures fail-safe reset assertion during deep brownout without external support circuitry |
| Push-pull RST output | Drives high/low directly to VCC1 - removes need for external pullup, reduces BOM count, and improves noise immunity vs open-drain |
| Low quiescent current | 14µA typical at 3.6V - extends battery life in portable equipment and enables use in energy-harvesting systems |
| Immunity to short VCC transients | Withstands ≤20µs negative glitches at 100mV overdrive - prevents spurious resets during switching noise or load transients |
Applications
| Telecom Power Sequencing | Industrial PLC Boot Integrity |
|---|---|
Use Scenario: Sequencing multiple DC/DC outputs (5V, 3.3V, 1.2V) in base station power modules. IC Role / Device Role / Timing Role: Dual-threshold supervisor asserting reset until both 5V and 3.3V rails stabilize above 4.625V and 3.075V respectively. Use Value: Prevents FPGA configuration errors by enforcing 210ms minimum reset hold time after full rail convergence. |
Use Scenario: Ensuring deterministic startup of ARM Cortex-M7 controllers in programmable logic controllers. IC Role / Device Role / Timing Role: Monitoring main 5V supply (VCC1) and I/O 3.3V rail (VCC2) to gate processor release from reset. Use Value: Guarantees reset remains asserted during cold-start brownout dips to 0.9V, eliminating boot hangs. |
| Battery-Backed Data Logger | Medical Diagnostic Equipment |
Use Scenario: Supervising Li-ion battery (3.6V) and backup supercapacitor (2.7V) rails in portable data loggers. IC Role / Device Role / Timing Role: Detecting undervoltage on primary battery (VCC1 = 3.6V) and secondary backup (VCC2 = 2.7V) to trigger graceful shutdown. Use Value: 14µA supply current enables >5-year shelf life; 0.8V reset validity ensures operation down to near-dead battery voltage. |
Use Scenario: Validating dual power domains (5V analog front-end, 3.3V digital subsystem) in ultrasound imaging processors. IC Role / Device Role / Timing Role: Providing synchronized reset to ADCs, FPGAs, and microcontrollers upon power-up or brownout. Use Value: Push-pull RST eliminates external pullup, reducing leakage paths critical for IEC 60601-1 patient-isolation compliance. |
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 | Same 4.63V/3.08V thresholds and 210ms timeout, but 5-pin SOT23-5 package with no MR pin | Lacks manual reset capability; suitable only for fully automatic supervision without operator intervention | Select when board space is constrained and manual reset is unnecessary |
| TPS3808G33DBVR | 3.3V fixed VTH1, adjustable VTH2 via external resistor; 200ms timeout; 6-pin SOT23-6 | Requires external resistor network for secondary threshold setting; less precise than factory-trimmed MAX6716UTLTD3-T | Select when flexibility in VTH2 adjustment outweighs need for guaranteed 3.075V accuracy |
Compared with MAX6716UTLTD3-T, MAX6316LUK46D3-T saves PCB area but removes manual reset functionality, while TPS3808G33DBVR trades factory-trimmed precision for design flexibility - making MAX6716UTLTD3-T optimal for applications demanding exact dual-rail thresholds and guaranteed timing without component count increase.
Availability
MAX6716UTLTD3-T is available at Aetrix Electronics and suitable for telecom power sequencing, industrial PLC boot integrity, and battery-backed data logger applications requiring stable component supply across extended production lifecycles.
Supply support for MAX6716UTLTD3-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 interface applications in industrial, automotive, and communications markets.
The MAX6715–MAX6729 product line delivers ultra-low-voltage, dual/triple-supply supervisory circuits optimized for reliable reset generation in space-constrained, multirail embedded systems operating from 0.8V to 5.5V.
FAQ
What are the exact reset threshold voltages for MAX6716UTLTD3-T?
The MAX6716UTLTD3-T has factory-trimmed reset thresholds of 4.625V (VTH1, primary supply) and 3.075V (VTH2, secondary supply), with ±1.5% tolerance over temperature. These values are confirmed by the 'LT' suffix in the part number per Maxim's Reset Voltage Threshold Suffix Guide and appear in the Electrical Characteristics table under VTH1 and VTH2 columns.
Does MAX6716UTLTD3-T include a watchdog timer or power-fail input?
No, MAX6716UTLTD3-T does not include a watchdog timer (WDI), power-fail input (PFI), or adjustable RSTIN input. Per the Selector Guide and Pin Description tables, MAX6716 variants provide only dual-voltage monitoring with manual reset (MR) and push-pull RST output - features confirmed by its 6-pin SOT23-6 pinout (pins 1–5 assigned, pin 6 NC).
What is the reset timeout period for MAX6716UTLTD3-T and how is it set?
The MAX6716UTLTD3-T has a 210ms typical reset timeout period, designated by the 'D3' suffix in the part number. This corresponds to the D3 entry in Maxim's Reset Timeout Period Suffix Guide (140ms min / 210ms typ / 280ms max), and is implemented via an internal capacitor-based timer that holds RST low for the full duration after recovery from undervoltage.
Can MAX6716UTLTD3-T operate with VCC1 = 3.3V and VCC2 = 1.8V?
Yes, MAX6716UTLTD3-T supports VCC1 from 1.8V to 5.0V and VCC2 from 0.9V to 3.3V per the General Description. With VCC1 = 3.3V and VCC2 = 1.8V, the device monitors both rails using its fixed 4.625V/3.075V thresholds - meaning VCC1 will assert reset if it drops below 4.625V (not applicable here), while VCC2 will assert reset if it falls below 3.075V (valid for 1.8V operation as long as VCC2 ≥ 0.8V for reset validity).
Is MAX6716UTLTD3-T pin-compatible with other MAX67xx devices in SOT23-6?
MAX6716UTLTD3-T shares the same 6-pin SOT23-6 package and pinout (RST, GND, MR, VCC2, VCC1, NC) with MAX6715/MAX6719/MAX6721/MAX6722/MAX6723/MAX6724, but functional compatibility depends on feature set. Unlike MAX6715 (open-drain RST) or MAX6721 (includes WDI), MAX6716UTLTD3-T provides push-pull RST only - requiring verification of output drive requirements in replacement scenarios.
MAX6716UTLTD3-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:
- 3.075V, 4.625V
- 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
MAX6716UTLTD3-T FAQ
1.How can I place an order for MAX6716UTLTD3-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6716UTLTD3-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 MAX6716UTLTD3-T reliable?
The price and inventory of MAX6716UTLTD3-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6716UTLTD3-T is usually 5 days.
3.What payment methods are accepted for MAX6716UTLTD3-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6716UTLTD3-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6716UTLTD3-T?
MAX6716UTLTD3-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6716UTLTD3-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 MAX6716UTLTD3-T?
For technical support, including MAX6716UTLTD3-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6716UTLTD3-T requirements.
6.How does Aetrix verify that MAX6716UTLTD3-T is sourced from the original manufacturer or authorized distributors?
All MAX6716UTLTD3-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 MAX6716UTLTD3-T meets industry standards.
7.What is the process for return or replacement of MAX6716UTLTD3-T?
All MAX6716UTLTD3-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6716UTLTD3-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 MAX6716UTLTD3-T part is unused and in its original packaging.
Return procedure for MAX6716UTLTD3-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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