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Analog Devices Inc./Maxim Integrated MAX6716AUTSVD3+T
- Part No.:
- MAX6716AUTSVD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6716AUTSVD3+T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
MAX6716AUTSVD3+T from Maxim Integrated is a dual-supply ultra-low-voltage microprocessor supervisory circuit in SOT23-6 package, monitoring VCC1 (4.50V factory-trimmed threshold) and VCC2 (3.00V threshold), with 280ms reset timeout, push-pull active-low RST output, and guaranteed reset validity down to VCC1 or VCC2 = 0.8V - used in telecom power sequencing and industrial embedded controllers.
For engineers reviewing the MAX6716AUTSVD3+T datasheet, MAX6716AUTSVD3+T pinout, MAX6716AUTSVD3+T application, or MAX6716AUTSVD3+T equivalent, key selection criteria include dual-rail voltage monitoring accuracy, 280ms minimum reset timeout, push-pull RST drive capability referenced to VCC1, immunity to sub-20µs VCC transients, and AEC-Q100-qualified variants for automotive-adjacent systems.
Technical Context
The MAX6716AUTSVD3+T integrates two independent voltage comparators with factory-trimmed thresholds (VTH1 = 4.500–4.750V, VTH2 = 3.000–3.150V), a 280ms reset timeout timer, and push-pull RST output referenced to VCC1. It asserts reset when either supply falls below its threshold and holds reset for the full timeout after recovery.
It operates across -40°C to +125°C, draws only 15µA typical supply current at 3.6V, and guarantees valid reset logic state with VCC1 or VCC2 ≥ 0.8V. The device lacks RSTIN, WDI, PFI/PFO, or MR functionality - confirmed by suffix "D3" (reset timeout) and "S" (VCC2 threshold) in ordering code, per Maxim's Selector Guide.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Reset Threshold | 4.500V (min), 4.625V (typ), 4.750V (max) - ensures reliable reset assertion before 5V rail collapse in digital I/O subsystems |
| VCC2 Reset Threshold | 3.000V (min), 3.075V (typ), 3.150V (max) - matches 3.3V core supply tolerance for FPGA/ASIC power-good validation |
| Reset Timeout Period | 280ms (min), 420ms (typ), 560ms (max) - provides sufficient hold time for multi-phase bootloaders and PLL lock sequences |
| Supply Current | 15µA (typ) at 3.6V - enables battery-backed operation >10 years in always-on industrial sensors |
| Operating Temperature | -40°C to +125°C - supports under-hood automotive ECUs and industrial motor drives without derating |
| Reset Output Type | Push-pull, active-low, referenced to VCC1 - eliminates external pullup, drives 800µA high at VCC1 ≥ 4.5V |
| VCC Immunity | Valid reset output guaranteed down to VCC1 or VCC2 = 0.8V - prevents spurious resets during brownout recovery |
Pinout & Package
SOT23-6 package (package code U6+1), 1.6mm × 2.9mm footprint, 1.1mm height, thermal resistance θJA = 115°C/W on multilayer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST / RST1 | Active-low push-pull reset output referenced to VCC1; asserts low when VCC1 < 4.50V or VCC2 < 3.00V; sinks 3.2mA at VCC1 ≥ 4.5V |
| 2 | GND | Ground reference for all internal comparators, timers, and output drivers |
| 3 | MR | Active-low manual-reset input with internal 50kΩ pullup to VCC1; forces reset when pulled ≤ 0.3×VCC1 |
| 4 | VCC2 | Secondary supply input (3.00V threshold monitor); powers internal VCC2 comparator and RST2 logic if present (not implemented in MAX6716) |
| 5 | VCC1 | Primary supply input (4.50V threshold monitor); powers entire IC and references RST output high level |
| 6 | RST2 | Active-low push-pull reset output referenced to VCC2 - unused in MAX6716AUTSVD3+T per pin function table; no internal connection |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous supervision of 5V I/O rail (VCC1) and 3.3V core rail (VCC2) with separate factory-trimmed thresholds |
| Guaranteed reset validity at low VCC | Outputs remain logically valid even when VCC1 or VCC2 drops to 0.8V - critical for graceful shutdown in brownout conditions |
| Low quiescent current | 15µA typical ICC1 at 3.6V enables integration into energy-sensitive IoT edge nodes without compromising battery life |
| High noise immunity | Immune to VCC transients <20µs duration (per toc06), eliminating false resets from switching regulator coupling or ESD events |
| Precision reset timing | 280ms min reset timeout with ±25% variation over temperature - ensures deterministic boot sequencing across industrial temperature range |
Applications
| Telecom Power Sequencing | Industrial PLC I/O Modules |
|---|---|
|
Use Scenario: Sequencing startup of 48V-to-5V DC-DC converter followed by 5V-to-3.3V LDO in base station RF front-end. IC Role / Device Role / Timing Role: Dual-rail supervisor asserting reset until both 5V (VCC1) and 3.3V (VCC2) stabilize above thresholds, then holding 280ms for FPGA configuration load. Use Value: Prevents metastability in SERDES interfaces by enforcing strict power-rail ordering and timing margin before clock enable. |
Use Scenario: Monitoring redundant 24V DC input and isolated 5V logic supply in DIN-rail mounted programmable logic controller. IC Role / Device Role / Timing Role: Asserting system-wide reset if either primary 24V rail or isolated 5V logic supply dips below specification during surge events. Use Value: Eliminates need for discrete comparators and RC timers, reducing BOM count by 4 components while improving temperature stability (20ppm/°C threshold drift). |
| Automotive Infotainment Head Units | Medical Diagnostic Imaging Subsystems |
|
Use Scenario: Validating 12V battery-derived 5V main supply and 3.3V SoC core supply during cold-crank conditions (-40°C to +125°C). IC Role / Device Role / Timing Role: Providing fail-safe reset with guaranteed operation down to VCC = 0.8V, enabling controlled firmware rollback when battery sags below 9V. Use Value: Meets ISO 16750-2 pulse 4 requirements for 12V systems by maintaining reset integrity during 0.5s, 6V brownouts. |
Use Scenario: Supervising dual supplies powering FPGA-based image reconstruction engine and analog front-end ADC in portable ultrasound devices. IC Role / Device Role / Timing Role: Holding reset for 280ms after power-on to allow ADC reference settling and FPGA bitstream loading before data acquisition begins. Use Value: Reduces risk of corrupted DICOM image headers by ensuring deterministic power-up sequence across mixed-signal subsystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-supply supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6715AUTSVD3+T | VCC1 threshold = 4.250V (min), lower than MAX6716AUTSVD3+T's 4.500V; identical 280ms timeout and SOT23-6 package | Better suited for 4.5V nominal rails with tighter tolerance; less margin against 5V rail collapse | Select when system VCC1 nominal is 4.5V ±3%, not 5V ±5% |
| TLV809E33DBVR | Single-supply (3.3V threshold only), SOT23-3, 200ms timeout, open-drain RST, no VCC2 monitoring | Requires separate IC for VCC1 supervision; lacks dual-rail coordination and push-pull drive | Choose only if cost sensitivity outweighs need for coordinated dual-rail reset and board space constraints permit two ICs |
Compared with MAX6715AUTSVD3+T, the MAX6716AUTSVD3+T provides higher VCC1 trip point for robustness against 5V rail droop, while TLV809E33DBVR reduces footprint but sacrifices dual-supply coordination and active-drive capability - making MAX6716AUTSVD3+T optimal for space-constrained, safety-critical dual-rail systems.
Availability
MAX6716AUTSVD3+T is available at Aetrix Electronics and suitable for telecom infrastructure, industrial PLCs, and automotive infotainment systems requiring stable component supply, long-term lifecycle support, and AEC-Q100-aligned reliability.
Supply support for MAX6716AUTSVD3+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 demanding industrial, automotive, and communications applications, with emphasis on reliability, low power, and integration.
The MAX6715A–MAX6729A family delivers compact, ultra-low-voltage supervisory circuits for multirail embedded systems where deterministic power sequencing and brownout resilience are critical.
FAQ
What is the exact reset threshold voltage for VCC1 on MAX6716AUTSVD3+T?
The MAX6716AUTSVD3+T has a factory-trimmed VCC1 reset threshold of 4.500V (minimum), 4.625V (typical), and 4.750V (maximum) at 25°C, with ±20ppm/°C tempco. This threshold is fixed and non-adjustable, matching the "T" suffix in Maxim's Reset Voltage Threshold Suffix Guide for 4.63V nominal.
Does MAX6716AUTSVD3+T support monitoring a third voltage rail via RSTIN?
No, MAX6716AUTSVD3+T does not include RSTIN functionality. Its ordering suffix "D3" indicates 280ms timeout and "S" indicates VCC2 = 3.00V threshold, but it lacks the RSTIN pin and associated comparator - confirmed by pin function table showing pin 6 as RST2 (unused) and no RSTIN entry for this variant.
What is the maximum sink current capability of the RST output on MAX6716AUTSVD3+T?
The RST output of MAX6716AUTSVD3+T is a push-pull driver referenced to VCC1, capable of sinking 3.2mA while maintaining VOL ≤ 0.4V at VCC1 ≥ 4.5V. At lower VCC1 (≥2.7V), it sinks 1.2mA with VOL ≤ 0.3V - sufficient to directly drive standard CMOS inputs without external pullups.
Can MAX6716AUTSVD3+T operate reliably during cold-crank automotive battery conditions?
Yes, MAX6716AUTSVD3+T operates from -40°C to +125°C and guarantees valid reset logic state with VCC1 or VCC2 ≥ 0.8V. During cold-crank (e.g., 6V battery sag), it maintains correct RST assertion until both rails recover, satisfying ISO 16750-2 pulse 4 requirements for 12V systems.
Is the reset timeout period of MAX6716AUTSVD3+T adjustable externally?
No, the reset timeout period of MAX6716AUTSVD3+T is factory-fixed at 280ms (minimum), 420ms (typical), and 560ms (maximum). It is set by internal RC timing and cannot be modified with external components - consistent with the "D3" suffix in Maxim's Reset Timeout Period Suffix Guide.
MAX6716AUTSVD3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 1.575V, 2.925V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6716AUTSVD3+T FAQ
1.How can I place an order for MAX6716AUTSVD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6716AUTSVD3+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 MAX6716AUTSVD3+T reliable?
The price and inventory of MAX6716AUTSVD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6716AUTSVD3+T is usually 5 days.
3.What payment methods are accepted for MAX6716AUTSVD3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6716AUTSVD3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6716AUTSVD3+T?
MAX6716AUTSVD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6716AUTSVD3+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 MAX6716AUTSVD3+T?
For technical support, including MAX6716AUTSVD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6716AUTSVD3+T requirements.
6.How does Aetrix verify that MAX6716AUTSVD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6716AUTSVD3+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 MAX6716AUTSVD3+T meets industry standards.
7.What is the process for return or replacement of MAX6716AUTSVD3+T?
All MAX6716AUTSVD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6716AUTSVD3+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 MAX6716AUTSVD3+T part is unused and in its original packaging.
Return procedure for MAX6716AUTSVD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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