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Analog Devices Inc./Maxim Integrated MAX6716UTSYD3
- Part No.:
- MAX6716UTSYD3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6716UTSYD3.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
MAX6716UTSYD3 from Maxim Integrated is a dual-voltage microprocessor supervisory circuit in 6-pin SOT23 package, monitoring VCC1 (4.625V threshold) and VCC2 (3.075V threshold) with 210ms 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 MAX6716UTSYD3 datasheet, MAX6716UTSYD3 pinout, MAX6716UTSYD3 application, or MAX6716UTSYD3 equivalent, key selection criteria include dual-supply threshold accuracy, 210ms min timeout, push-pull RST drive capability, immunity to sub-100ns VCC transients, and operation across –40°C to +125°C.
Technical Context
The MAX6716UTSYD3 implements two independent voltage comparators with factory-trimmed thresholds (VTH1 = 4.625V, VTH2 = 3.075V), each referenced to internal bandgap references with ±1.5% tolerance over temperature. Its reset logic asserts RST low when either supply falls below its threshold and holds for exactly 210ms (min) after both supplies recover - no watchdog, manual reset, or RSTIN/PFI functionality enabled per suffix D3.
It uses a single internal reference generator shared between comparators, achieving 20ppm/°C tempco and 0.5% hysteresis. The push-pull RST output drives high to ≥0.8×VCC1 at 800µA and low to ≤0.4V at 3.2mA, eliminating need for external pullup while supporting direct interface to 1.8V–5.5V µP reset inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.625V (typ), ±1.5% over –40°C to +125°C - sets primary supply brownout detection point for 5V rails |
| VCC2 Threshold | 3.075V (typ), ±1.5% over –40°C to +125°C - monitors secondary 3.3V domain with guaranteed validity down to 0.8V supply |
| Reset Timeout | 210ms (min), fixed by suffix D3 - ensures sufficient hold time for µP initialization and peripheral settling |
| Supply Current | 14µA (typ) at 3.6V - enables battery-backed systems with multi-year standby life |
| RST Output Type | Push-pull active-low - eliminates external pullup resistor, supports direct drive of µP reset pins up to 3.2mA sink |
| Operating Temp | –40°C to +125°C - qualified for under-hood automotive, industrial PLC, and telecom base station environments |
| VCC Immunity | Immune to transients <100ns at 100mV overdrive - prevents false resets during switching noise on power rails |
Pinout & Package
MAX6716UTSYD3 is housed in a 6-pin SOT23 package (2.9mm × 1.6mm × 1.1mm), RoHS-compliant, with gull-wing leads and thermal pad not connected internally.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST/RST1 | Active-low push-pull reset output - asserts low on VCC1/VCC2 fault and holds for 210ms; drives high to ≥0.8×VCC1 when deasserted |
| 2 | GND | Ground reference for all internal comparators and output stage - must be low-impedance connection to system ground plane |
| 3 | MR | Active-low manual-reset input with 50kΩ internal pullup to VCC1 - pulling low forces immediate reset; unused pin may float |
| 4 | VCC2 | Secondary supply input (3.075V threshold monitor) - powers internal comparator for VCC2 domain and sets RST2 reference if present |
| 5 | VCC1 | Primary supply input (4.625V threshold monitor) - powers device core, sets RST output reference, and enables reset assertion logic |
| 6 | NC | No connect - internally unconnected; must remain unconnected on PCB to avoid parasitic coupling or ESD path |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous VCC1 (4.625V) and VCC2 (3.075V) supervision with separate comparators and shared timeout timer |
| Guaranteed reset validity down to 0.8V | Ensures correct RST logic state even during deep brownout - critical for fail-safe shutdown in industrial power systems |
| Push-pull RST output | Eliminates external pullup resistor, reduces BOM count, and provides robust drive into µP reset pins with 3.2mA sink capability |
| Low quiescent current | 14µA typical at 3.6V enables integration into always-on subsystems without compromising battery life |
| High noise immunity | Immunity to VCC transients <100ns duration prevents spurious resets in electrically noisy environments like motor drives |
Applications
| Telecom Power Sequencing | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Sequencing startup of FPGA, DSP, and analog front-end in 48V-powered telecom line cards with dual 5V/3.3V rails. IC Role / Device Role / Timing Role: Dual-supply supervisor asserting synchronized reset until both VCC1 (5V) and VCC2 (3.3V) stabilize above 4.625V and 3.075V respectively. Use Value: Prevents metastability and configuration errors by enforcing 210ms minimum reset hold time after full rail convergence. |
Use Scenario: Monitoring isolated 24V DC-DC outputs powering microcontroller and field I/O drivers in programmable logic controllers. IC Role / Device Role / Timing Role: Supervising primary 5V logic rail and secondary 3.3V I/O rail with guaranteed reset assertion down to 0.8V supply collapse. Use Value: Enables safe shutdown and recovery during brownouts common in factory floor power distribution networks. |
| Automotive Body Control Module | Medical Diagnostic Equipment |
Use Scenario: Validating battery-backed 5V and 3.3V supplies in vehicle body control units exposed to cold-crank (4.5V) and load-dump (60V) transients. IC Role / Device Role / Timing Role: Dual-threshold supervisor with –40°C to +125°C rating ensuring reset integrity during extreme ambient and supply conditions. Use Value: Meets AEC-Q100 Grade 0 requirements via extended temperature qualification and transient immunity design. |
Use Scenario: Ensuring reliable boot of ARM-based imaging controller and sensor interface ASICs in portable ultrasound devices. IC Role / Device Role / Timing Role: Providing deterministic 210ms reset pulse to coordinate FPGA configuration, memory initialization, and analog bias settling. Use Value: Eliminates boot failures caused by marginal supply rise times or voltage droop during high-current acquisition phases. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3808G33DBVR | Fixed 3.3V VDD threshold only; single-supply monitor with adjustable delay (200ms–4s); 1.8µA IQ | Lacks dual-threshold capability - requires external resistor divider to monitor second rail, increasing component count | Select when only one supply needs supervision and ultra-low IQ (<2µA) is prioritized over dual-rail integration |
| ADM6716LAKSZ-RL | 4.63V/3.08V thresholds, 200ms timeout, open-drain RST, same SOT23-6 package but different pinout (RST on pin 6) | Open-drain output requires external pullup; pin 6 RST conflicts with MAX6716UTSYD3 NC pin - not pin-compatible | Select when board layout allows pullup resistor and system design tolerates different pin assignment for reset signal routing |
Compared with TPS3808G33DBVR and ADM6716LAKSZ-RL, MAX6716UTSYD3 uniquely integrates matched dual thresholds (4.625V/3.075V), push-pull RST, and fixed 210ms timeout in a pinout-optimized SOT23-6 - reducing design risk in space-constrained dual-rail systems where timing determinism and BOM simplicity are critical.
Availability
MAX6716UTSYD3 is available at Aetrix Electronics and suitable for telecom power sequencing, industrial PLC I/O modules, and automotive body control modules requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for MAX6716UTSYD3 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, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.
The MAX6715A–MAX6729A family delivers ultra-low-voltage dual/triple supervisory circuits optimized for high-reliability embedded systems requiring guaranteed reset behavior across wide temperature and supply ranges.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on MAX6716UTSYD3?
The MAX6716UTSYD3 has factory-trimmed reset thresholds of 4.625V (VCC1) and 3.075V (VCC2), with ±1.5% tolerance over –40°C to +125°C. These values are defined by the 'TS' suffix in the part number and confirmed in Maxim's Reset Voltage Threshold Suffix Guide - no external adjustment is possible on this variant of MAX6716UTSYD3.
Does MAX6716UTSYD3 include watchdog or manual reset functionality?
MAX6716UTSYD3 includes an active-low manual-reset input (MR) with internal 50kΩ pullup to VCC1, but does not include watchdog timer or RSTIN/PFI functionality - those features are enabled only in variants with suffixes 'W', 'M', 'R', or 'P'. The 'D3' timeout suffix confirms 210ms fixed reset hold time without watchdog interaction.
What is the RST output configuration and drive strength of MAX6716UTSYD3?
MAX6716UTSYD3 features a push-pull active-low RST output on pin 1, capable of sinking 3.2mA at VCC1 ≥ 4.5V (VOL ≤ 0.4V) and sourcing 800µA while maintaining VOH ≥ 0.8×VCC1. This eliminates need for external pullup resistors and supports direct interfacing to µP reset inputs across 1.8V–5.5V logic families.
Can MAX6716UTSYD3 operate reliably during severe supply brownout conditions?
Yes - MAX6716UTSYD3 guarantees valid reset output logic state as long as either VCC1 or VCC2 remains ≥ 0.8V, verified across –40°C to +125°C. This enables fail-safe operation during partial rail collapse, such as 5V rail dropping to 1.2V while 3.3V remains stable, ensuring deterministic reset assertion before complete power loss.
Is MAX6716UTSYD3 pin-compatible with other devices in the MAX6715A–MAX6729A family?
MAX6716UTSYD3 shares the 6-pin SOT23 package and pin 1 (RST), pin 2 (GND), pin 3 (MR), pin 4 (VCC2), pin 5 (VCC1) assignments with MAX6715A/MAX6719A/MAX6720A variants, but pin 6 is NC here versus RST2 or PFO on other members - direct replacement requires verification of unused pin function and absence of conflicting features like watchdog or power-fail outputs.
MAX6716UTSYD3 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:
- 2.188V, 2.925V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
MAX6716UTSYD3 FAQ
1.How can I place an order for MAX6716UTSYD3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6716UTSYD3 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 MAX6716UTSYD3 reliable?
The price and inventory of MAX6716UTSYD3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6716UTSYD3 is usually 5 days.
3.What payment methods are accepted for MAX6716UTSYD3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6716UTSYD3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6716UTSYD3?
MAX6716UTSYD3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6716UTSYD3 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 MAX6716UTSYD3?
For technical support, including MAX6716UTSYD3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6716UTSYD3 requirements.
6.How does Aetrix verify that MAX6716UTSYD3 is sourced from the original manufacturer or authorized distributors?
All MAX6716UTSYD3 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 MAX6716UTSYD3 meets industry standards.
7.What is the process for return or replacement of MAX6716UTSYD3?
All MAX6716UTSYD3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6716UTSYD3, 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 MAX6716UTSYD3 part is unused and in its original packaging.
Return procedure for MAX6716UTSYD3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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