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Analog Devices Inc./Maxim Integrated MAX6716UTVDD3+
- Part No.:
- MAX6716UTVDD3+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6716UTVDD3+.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:9,345
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Product details
Overview
The MAX6716UTVDD3+ 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, manual reset input, and guaranteed reset validity down to VCC1 or VCC2 = 0.8V - used in telecom power sequencing and server board management.
For engineers reviewing the MAX6716UTVDD3+ datasheet, MAX6716UTVDD3+ pinout, MAX6716UTVDD3+ application, or MAX6716UTVDD3+ equivalent, key selection factors include dual-supply threshold accuracy (±1.5% over temp), ultra-low 14µA supply current at 3.6V, immunity to sub-20µs VCC transients, and push-pull reset drive capability without external pullup.
Technical Context
This device implements two independent voltage comparators with factory-trimmed thresholds (VTH1 = 4.625V, VTH2 = 3.075V), a digital reset timeout timer (210ms min), and integrated MR logic with 50kΩ internal pullup to VCC1. It asserts RST low when either supply falls below its threshold and holds reset for the full timeout after recovery.
The push-pull RST output is referenced to VCC1 and drives high to ≥0.8×VCC1 (at 800µA) and low to ≤0.4V (at 3.2mA), enabling direct interface to 1.8–5.0V µP reset inputs without external components. No watchdog or power-fail functions are included in this variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.625V (factory-trimmed, ±1.5% over -40°C to +85°C) - sets primary supply brownout detection point for 5V rails |
| VCC2 Threshold | 3.075V (factory-trimmed, ±1.5% over -40°C to +85°C) - sets secondary supply detection for 3.3V I/O rails |
| Reset Timeout | 210ms (minimum) - ensures µP reset hold time meets ARM/Intel boot initialization requirements |
| Supply Current | 14µA typical at 3.6V - enables battery-backed operation >10 years in always-on monitoring applications |
| RST Output Type | Push-pull active-low - eliminates need for external pullup resistor and supports 3.3V/5V µP reset pin drive directly |
| Valid Reset Range | VCC1 or VCC2 ≥ 0.8V - guarantees correct RST logic state during deep brownout conditions before power collapse |
| MR Input Logic | Active-low with 50kΩ internal pullup to VCC1 - allows momentary switch-to-GND manual reset without external biasing |
Pinout & Package
Package: 6-pin SOT23-6, 1.6mm × 2.9mm footprint, -40°C to +85°C operating range.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1; drives high to ≥0.8×VCC1, low to ≤0.4V |
| 2 | GND | Analog/digital ground reference for all comparators and logic; must be low-impedance connection |
| 3 | MR | Active-low manual reset input with internal 50kΩ pullup to VCC1; accepts TTL/CMOS levels |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V); powers internal VCC2 comparator and sets VTH2 reference |
| 5 | VCC1 | Primary supply input (1.8V–5.0V); powers core logic, sets VTH1 reference, and references RST output |
| 6 | NC | No connect - internally unconnected; must remain floating or tied to GND per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous VCC1 (4.625V) and VCC2 (3.075V) supervision with separate comparators and hysteresis |
| Factory-trimmed precision thresholds | ±1.5% total accuracy over temperature avoids external calibration in telecom/server BOMs |
| Push-pull RST output | Eliminates external pullup resistor, reduces PCB area, and ensures robust drive into µP reset pin capacitance |
| Guaranteed operation down to 0.8V | Enables valid reset assertion during deep undervoltage events where other supervisors fail silently |
| Immunity to short VCC transients | Rejects <20µs glitches - prevents spurious resets during switching noise on shared power rails |
Applications
| Telecom Line Card Power Sequencing | Industrial PLC CPU Board |
|---|---|
Use Scenario: Monitoring 48V DC-DC converter output (5V) and FPGA I/O rail (3.3V) during hot-swap insertion and brownout recovery. IC Role / Device Role / Timing Role: Dual-supply supervisor asserting synchronized reset to ARM processor and CPLD upon either rail dropout. Use Value: 210ms timeout ensures complete FPGA configuration before release; push-pull RST drives both loads without signal degradation. | Use Scenario: Supervising main 24V-to-5V supply and isolated 3.3V logic rail in DIN-rail mounted controller with extended temperature operation. IC Role / Device Role / Timing Role: Primary system health monitor triggering controlled µP restart when either supply deviates beyond tolerance. Use Value: Valid reset down to 0.8V prevents latch-up during slow power decay; 14µA quiescent current minimizes standby loss. |
| Server Baseboard Management | Battery-Powered IoT Gateway |
Use Scenario: Coordinating reset timing between CPU core voltage (1.2V) and memory I/O voltage (1.5V) on x86 motherboard VRM outputs. IC Role / Device Role / Timing Role: Dual-threshold supervisor enforcing strict power-good sequence before releasing PCH reset. Use Value: Factory-trimmed 4.625V/3.075V thresholds match Intel VRM spec tolerances; no calibration required in production test. | Use Scenario: Long-life monitoring of Li-ion battery (3.6V nominal) and LDO-regulated 3.0V MCU rail in remote sensor node. IC Role / Device Role / Timing Role: Low-power voltage guardian asserting reset if battery sags below 3.075V or LDO fails. Use Value: 14µA supply current extends 10-year battery life; 210ms timeout accommodates BLE radio wake-up latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6316US46D3+ | Single-supply supervisor (4.63V only), no VCC2 monitoring, same 210ms timeout and SOT23-6 package | Only suitable when secondary rail supervision is handled elsewhere (e.g., by PMIC) | Select when cost reduction is critical and dual-rail monitoring is unnecessary |
| TPS3808G33DBVR | Single-supply (3.3V threshold), 200ms timeout, open-drain RST, higher 25µA ICC | Lacks VCC2 input; requires external pullup; not suitable for dual-rail coordination | Choose only for single-rail systems where push-pull drive is not required |
Compared with MAX6716UTVDD3+, MAX6316US46D3+ omits VCC2 monitoring but matches threshold and timing for simpler designs, while TPS3808G33DBVR trades dual-rail capability for TI's broader qualification and longer production lifetime - neither offers pin-compatible dual-supply supervision.
Availability
MAX6716UTVDD3+ is available at Aetrix Electronics and suitable for telecom line cards, industrial PLCs, server baseboards, and battery-powered gateways requiring stable component supply across extended temperature and long-lifecycle programs.
Supply support for MAX6716UTVDD3+ 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 in demanding industrial and communications environments.
The MAX6715–MAX6729 family delivers ultra-low-voltage, multi-rail supervision for space-constrained systems where reliability, low power, and guaranteed reset behavior under brownout are critical design requirements.
FAQ
What are the exact reset threshold voltages for MAX6716UTVDD3+?
The MAX6716UTVDD3+ has factory-trimmed reset thresholds of 4.625V for VCC1 and 3.075V for VCC2, with ±1.5% total accuracy over the full -40°C to +85°C temperature range. These values are fixed by the "TV" suffix per Maxim's Reset Voltage Threshold Suffix Guide and do not require external resistor networks.
Does MAX6716UTVDD3+ include a watchdog timer or power-fail functionality?
No, MAX6716UTVDD3+ does not include watchdog timer or power-fail input/output features. Per the Selector Guide, it belongs to the MAX6716 series - a dual-supply supervisor with manual reset only. Watchdog and PFI/PFO functions appear only in MAX6721–MAX6729 variants.
What is the function of Pin 6 (NC) on MAX6716UTVDD3+?
Pin 6 on MAX6716UTVDD3+ is designated NC (No Connect) and is internally unconnected. It must remain floating in the circuit; tying it to GND is acceptable per Maxim's layout recommendations but provides no functional benefit.
How does the push-pull RST output of MAX6716UTVDD3+ differ from open-drain alternatives?
The push-pull RST output of MAX6716UTVDD3+ actively drives both high (≥0.8×VCC1) and low (≤0.4V) states, eliminating the need for an external pullup resistor. This reduces component count, improves noise immunity, and ensures faster edge rates into capacitive µP reset pins compared to open-drain configurations.
What is the minimum supply voltage at which MAX6716UTVDD3+ guarantees valid reset operation?
MAX6716UTVDD3+ guarantees correct RST logic state down to VCC1 or VCC2 = 0.8V. Below this level, reset behavior is not specified. This feature ensures reliable fault detection during gradual power collapse - a key differentiator versus supervisors that lose reset validity above 1.0V.
MAX6716UTVDD3+ 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:
- 0.788V, 1.575V
- 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
MAX6716UTVDD3+ FAQ
1.How can I place an order for MAX6716UTVDD3+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6716UTVDD3+ 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 MAX6716UTVDD3+ reliable?
The price and inventory of MAX6716UTVDD3+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6716UTVDD3+ is usually 5 days.
3.What payment methods are accepted for MAX6716UTVDD3+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6716UTVDD3+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6716UTVDD3+?
MAX6716UTVDD3+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6716UTVDD3+ 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 MAX6716UTVDD3+?
For technical support, including MAX6716UTVDD3+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6716UTVDD3+ requirements.
6.How does Aetrix verify that MAX6716UTVDD3+ is sourced from the original manufacturer or authorized distributors?
All MAX6716UTVDD3+ 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 MAX6716UTVDD3+ meets industry standards.
7.What is the process for return or replacement of MAX6716UTVDD3+?
All MAX6716UTVDD3+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6716UTVDD3+, 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 MAX6716UTVDD3+ part is unused and in its original packaging.
Return procedure for MAX6716UTVDD3+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6716UTVDD3+ Tags
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MIC826SYMT-TR
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APX803L20-29SA-7
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