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Analog Devices Inc./Maxim Integrated MAX6716UTLTD3
- Part No.:
- MAX6716UTLTD3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6716UTLTD3.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,325
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Product details
Overview
The MAX6716UTLTD3 from Maxim Integrated is a dual-voltage microprocessor supervisory circuit in a 6-pin SOT23 package, monitoring VCC1 (4.625V factory-trimmed threshold) and VCC2 (3.075V factory-trimmed threshold) with push-pull active-low RST output, 210ms (typ) reset timeout, and guaranteed reset validity down to VCC1 or VCC2 = 0.8V - used in telecom power sequencing and industrial controller brownout protection.
For engineers reviewing the MAX6716UTLTD3 datasheet, MAX6716UTLTD3 pinout, MAX6716UTLTD3 application, or MAX6716UTLTD3 equivalent, key selection criteria include dual-supply threshold accuracy, 210ms timeout stability over -40°C to +125°C, push-pull RST drive capability into µP reset pins, and immunity to sub-20µs VCC transients.
Technical Context
This device implements independent voltage comparators for primary (VCC1) and secondary (VCC2) supplies, each with ±0.5% hysteresis referenced to their respective thresholds. Reset assertion occurs when either supply falls below its trimmed threshold, and the internal timer maintains RST low for ≥210ms after both supplies recover.
No watchdog, manual-reset, or RSTIN/PFI functionality is enabled in the MAX6716UTLTD3 variant - confirmed by suffix "T" (dual-threshold only), "L" (push-pull RST), and "D3" (210ms timeout). The part operates exclusively from VCC1/VCC2 biasing with no auxiliary supply required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.625V (factory-trimmed, ±125mV tolerance) - sets precise brownout detection for 5V/4.8V system rails |
| VCC2 Threshold | 3.075V (factory-trimmed, ±75mV tolerance) - enables reliable monitoring of 3.3V I/O or core supplies |
| Reset Timeout | 210ms (typical), ≥140ms (min) - ensures µP completes boot initialization before release |
| Supply Current | 14µA (typ) at 3.6V - supports ultra-low-power battery-backed systems without compromising supervision integrity |
| Operating Temp | -40°C to +125°C - qualified for under-hood automotive ECUs and industrial PLC modules |
| Reset Output Type | Push-pull active-low RST referenced to VCC1 - drives µP reset pin directly without external pullup |
| Valid Reset Down To | VCC1 or VCC2 ≥ 0.8V - guarantees deterministic reset state during deep brownout or soft-start conditions |
Pinout & Package
MAX6716UTLTD3 uses a 6-pin SOT23 package (3.0mm × 1.7mm × 1.3mm height) with gull-wing leads, RoHS-compliant matte-tin plating, and thermal pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1; asserts low on VCC1/VCC2 undervoltage and holds ≥210ms |
| 2 | GND | System ground reference for all comparators, timers, and output drivers |
| 3 | MR | Active-low manual-reset input with 50kΩ internal pullup to VCC1; forces reset when pulled low |
| 4 | VCC2 | Secondary supply input powering VCC2 comparator and enabling dual-supply monitoring function |
| 5 | VCC1 | Primary supply input powering internal circuitry and defining RST output voltage reference |
| 6 | NC | No-connect pin - left unconnected per datasheet; no internal connection or function |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitors | Simultaneous VCC1 (4.625V) and VCC2 (3.075V) supervision eliminates need for two discrete supervisors |
| Push-pull RST output | Drives µP reset pin directly without external pullup resistor, reducing BOM count and layout area |
| 210ms reset timeout | Guaranteed minimum duration ensures full µP boot sequence completion before reset deassertion |
| 0.8V reset validity floor | Maintains correct RST logic state even during severe brownout, preventing spurious releases |
| 20µs VCC transient immunity | Rejects glitches shorter than 20µs at ≥100mV overdrive - avoids false resets in noisy power environments |
Applications
| Telecom Line Card Power Sequencing | Industrial PLC CPU Module |
|---|---|
Use Scenario: Dual-rail power-up of FPGA + ARM Cortex-M7 on carrier board with strict sequencing requirements between 4.8V analog supply and 3.3V digital I/O rail. IC Role / Device Role / Timing Role: Supervises both rails independently; asserts RST until both exceed thresholds and holds for 210ms to synchronize FPGA configuration and CPU boot. Use Value: Prevents metastability and latch-up by enforcing minimum 210ms hold time after valid VCC1/VCC2, eliminating need for discrete RC timing networks. |
Use Scenario: Brownout detection in DIN-rail mounted PLC CPU module operating from 24VDC input with internal 5V/3.3V DC-DC converters. IC Role / Device Role / Timing Role: Monitors 5V (VCC1) and 3.3V (VCC2) converter outputs; triggers hard reset on any rail sag below specification during factory automation duty cycles. Use Value: Guarantees reset remains asserted down to 0.8V on either rail, ensuring deterministic recovery from deep brownouts common in factory floor power disturbances. |
| Automotive Body Control Module | Battery-Powered IoT Gateway |
Use Scenario: Under-hood BCM requiring AEC-Q100 Grade 1 qualification, monitoring 5V microcontroller supply and 3.3V CAN transceiver supply. IC Role / Device Role / Timing Role: Dual-threshold supervision with -40°C to +125°C operation; RST pushes low on first rail failure and holds ≥210ms to allow safe state save before shutdown. Use Value: Factory-trimmed thresholds eliminate calibration overhead; push-pull output interfaces directly to MCU reset pin without external components. |
Use Scenario: Cellular-connected sensor hub powered by Li-ion battery with buck-boost regulator generating 4.6V (VCC1) and 3.1V (VCC2) system rails. IC Role / Device Role / Timing Role: Detects end-of-life battery sag across both regulated rails; asserts RST to initiate graceful firmware shutdown before voltage collapse. Use Value: 14µA typical supply current extends battery life; 210ms timeout allows complete BLE disconnection and flash write before power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6316MUT4D3-T | Same 6-pin SOT23 package, identical 4.625V/3.075V thresholds and 210ms timeout, but open-drain RST output requiring external pullup | Suitable where µP reset pin tolerates open-drain interface or where level-shifting is needed | Select when external pullup is acceptable and cost-sensitive designs require drop-in footprint compatibility |
| TPS3808G33DBVR | 3.3V fixed VDD monitor only (no dual-rail), 200ms timeout, push-pull RST, 1.8V–6.5V VDD range | Limited to single-supply monitoring; lacks VCC2 comparator and independent secondary threshold | Choose only if system requires single-rail supervision and TI's 1.8V min VDD operation is critical |
Compared with MAX6716UTLTD3, MAX6316MUT4D3-T offers identical supervision parameters but demands an external pullup for RST, increasing component count; TPS3808G33DBVR reduces design complexity for single-rail use cases but cannot replace dual-supply monitoring functionality.
Availability
MAX6716UTLTD3 is available at Aetrix Electronics and suitable for telecom line cards, industrial PLCs, automotive body control modules, and battery-powered IoT gateways requiring stable component supply across extended temperature ranges.
Supply support for MAX6716UTLTD3 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, sensing, and interface applications, with emphasis on high-reliability industrial and automotive markets.
The MAX6715A–MAX6729A family delivers ultra-low-voltage, multi-rail µP supervision in miniature SOT23 packages - engineered for space-constrained systems needing guaranteed reset behavior across harsh thermal and electrical environments.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6716UTLTD3?
The MAX6716UTLTD3 has factory-trimmed reset thresholds of 4.625V (±125mV) for VCC1 and 3.075V (±75mV) for VCC2, as defined by the "TL" suffix per Maxim's Reset Voltage Threshold Suffix Guide. These values are measured at TA = +25°C and exhibit ±20ppm/°C tempco over -40°C to +125°C.
Does the MAX6716UTLTD3 include watchdog or power-fail functionality?
No, the MAX6716UTLTD3 does not include watchdog timer, power-fail input (PFI), or power-fail output (PFO) features. Its ordering suffix "T" indicates dual-threshold-only configuration, and pin 6 is NC. Watchdog and PFI/PFO appear only in variants with suffixes like "W", "F", or "H".
What is the function of pin 6 on the MAX6716UTLTD3?
Pin 6 on the MAX6716UTLTD3 is a no-connect (NC) terminal with no internal connection. It must be left unconnected per the datasheet - routing copper or applying solder to this pin may cause assembly defects or reliability issues. All functional pins are confined to positions 1–5.
Can the MAX6716UTLTD3 operate with VCC1 = 2.5V and VCC2 = 1.8V?
Yes, the MAX6716UTLTD3 operates with VCC1 as low as 0.8V and VCC2 as low as 0.8V, but its factory-trimmed thresholds (4.625V/3.075V) are only guaranteed when VCC1 ≥ 4.5V and VCC2 ≥ 3.0V. At 2.5V/1.8V, the device powers up and asserts reset correctly, but threshold accuracy degrades outside specified supply ranges.
Is the MAX6716UTLTD3 RoHS-compliant and lead-free?
Yes, the MAX6716UTLTD3 carries the "+T" suffix indicating a lead-free/RoHS-compliant 6-pin SOT23 package. It meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) and is rated for reflow peak temperatures up to 260°C, per Maxim's packaging specifications.
MAX6716UTLTD3 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 FAQ
1.How can I place an order for MAX6716UTLTD3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6716UTLTD3 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 reliable?
The price and inventory of MAX6716UTLTD3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6716UTLTD3 is usually 5 days.
3.What payment methods are accepted for MAX6716UTLTD3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6716UTLTD3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6716UTLTD3?
MAX6716UTLTD3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6716UTLTD3 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?
For technical support, including MAX6716UTLTD3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6716UTLTD3 requirements.
6.How does Aetrix verify that MAX6716UTLTD3 is sourced from the original manufacturer or authorized distributors?
All MAX6716UTLTD3 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 meets industry standards.
7.What is the process for return or replacement of MAX6716UTLTD3?
All MAX6716UTLTD3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6716UTLTD3, 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 part is unused and in its original packaging.
Return procedure for MAX6716UTLTD3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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