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Analog Devices Inc./Maxim Integrated MAX6714DUB+
- Part No.:
- MAX6714DUB+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX6714DUB+.pdf
- Description:
- IC SUPERVISOR 4 CHANNEL 10UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:172
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Product details
Overview
The MAX6714DUB+ from Maxim Integrated is a quad voltage monitor IC with one fixed VCC reset channel (3.3V ±5%), three adjustable power-fail comparator inputs (PFI1–PFI3), active-low open-drain RESET and PFO outputs, 140ms min reset timeout, and 60µA typical supply current. It operates from 2.0V to 5.5V and is used in multivoltage embedded systems for reliable µP reset and power-fail detection.
For engineers reviewing the MAX6714DUB+ datasheet, MAX6714DUB+ pinout, MAX6714DUB+ application, or MAX6714DUB+ equivalent, this page delivers verified electrical parameters, functional pin mapping, real-world use cases, and validated alternative options for industrial and computing power-supply supervision.
Technical Context
The MAX6714DUB+ integrates a precision 0.62V internal reference, undervoltage lockout circuitry, and three high-impedance power-fail comparators whose thresholds are set externally via resistor dividers. Its RESET output combines VCC monitoring (3.3V nominal, −5% trip) with manual reset (MR) input and built-in 140ms timeout timing.
All outputs-RESET, PFO1, PFO2, PFO3-are active-low, open-drain with 10µA internal pullup to VCC. The MR input features a 20kΩ internal pullup and 100ns glitch rejection, enabling robust reset initiation in noisy environments without external debounce.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0V to 5.5V - supports direct connection to monitored 3.3V rail or separate bias supply. |
| VCC Reset Threshold | 2.85V to 3.00V (−5% of 3.3V) - triggers RESET assertion when main supply drops below spec-compliant lower limit. |
| PFI Threshold Reference | 0.623V (±2.0%) - internal reference enables precise external threshold setting down to 0.62V via resistor divider. |
| Reset Timeout Period | 140ms (min) - ensures µP remains held in reset long enough for stable power recovery before release. |
| Supply Current | 60µA (typ at 5V) - ultra-low quiescent current suitable for always-on supervisory functions in energy-sensitive systems. |
| Operating Temperature | −40°C to +85°C - fully specified for extended industrial and computing environments. |
| Output Type | Active-low, open-drain with 10µA internal pullup - allows wire-ORing, level-shifting, and compatibility with 1.8V–5.5V logic families. |
Pinout & Package
Package: 10-pin µMAX (3.0mm × 3.0mm, 0.6mm height, 0.5mm pitch), lead-free, RoHS-compliant.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | PFI3 | Power-fail input 3 - noninverting comparator input referenced to 0.62V; requires external resistor divider to set threshold. |
| 2 | PFI2 | Power-fail input 2 - identical function and interface to PFI3; supports independent monitoring of third supply rail. |
| 3 | PFI1 | Power-fail input 1 - identical function and interface to PFI3; enables triple-rail power-fail detection. |
| 4 | GND | Analog/digital ground reference - common return for all internal circuits and external divider networks. |
| 5 | MR | Manual reset input - TTL/CMOS-compatible; internally pulled up to VCC (20kΩ); asserts RESET when driven low. |
| 6 | RESET | Active-low reset output - open-drain with 10µA internal pullup; asserts during VCC undervoltage or MR activation. |
| 7 | PFO1 | Power-fail output 1 - active-low, open-drain; asserts when PFI1 falls below its programmed threshold. |
| 8 | PFO2 | Power-fail output 2 - identical behavior to PFO1; provides dedicated fault signal per monitored rail. |
| 9 | PFO3 | Power-fail output 3 - identical behavior to PFO1; completes triple independent power-fail signaling capability. |
| 10 | VCC | Supply input - powers internal circuitry and serves as reference for internal VCC reset comparator and output pullups. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 0.62V reference | Enables accurate, temperature-stable threshold setting for all three PFI inputs without external references. |
| 140ms min reset timeout | Guarantees sufficient hold time for microprocessor initialization after power recovery, eliminating need for external RC timing. |
| 20kΩ internal MR pullup | Permits direct switch-to-ground manual reset implementation with no external components or debounce circuitry. |
| 10µA internal output pullup | Supports direct interfacing to 1.8V–5.5V logic without external resistors; overdrivable by stronger external pullups. |
| 0.3% threshold hysteresis | Prevents output oscillation near trip points without requiring external feedback resistors or design effort. |
Applications
| Server Power Sequencing | Industrial PLC I/O Module |
|---|---|
Use Scenario: Monitoring 3.3V core, 5V auxiliary, and 12V analog rails in a rack-mounted server PSU to coordinate safe boot and graceful shutdown. IC Role / Device Role / Timing Role: MAX6714DUB+ acts as centralized power-good arbiter and reset initiator, using PFI1–PFI3 for rail-specific fail detection and RESET for coordinated µP reset. Use Value: Eliminates discrete comparator + timer solutions; reduces BOM count by 7+ components while improving trip accuracy to ±2% across temperature. | Use Scenario: Supervising isolated 24V field power, 5V logic, and 3.3V FPGA supply in an industrial programmable logic controller with remote diagnostics. IC Role / Device Role / Timing Role: MAX6714DUB+ provides independent PFO signals per rail for diagnostic LED indication and feeds RESET to the main controller upon any undervoltage event. Use Value: Enables deterministic fault response within 30µs propagation delay and maintains operation down to 2.0V supply, supporting brownout resilience. |
| Notebook Embedded Controller | Telecom Line Card |
Use Scenario: Replacing legacy dual-monitor ICs in a notebook EC subsystem to supervise battery charger, SoC core, and display backlight supplies. IC Role / Device Role / Timing Role: MAX6714DUB+ uses its fixed 3.3V VCC monitor for EC reset and PFI inputs for adjustable thresholds on variable-voltage rails like USB-C PD outputs. Use Value: Reduces footprint vs. discrete solution by >60% and supports dynamic threshold reconfiguration via firmware-controlled resistor networks. | Use Scenario: Detecting AC/DC converter failure, backup battery depletion, and DSP core undervoltage in a carrier-grade line card operating in NEBS-compliant enclosures. IC Role / Device Role / Timing Role: MAX6714DUB+ serves as primary supervisor for redundant 3.3V/5V rails, asserting RESET on first fault and latching PFO status for SNMP reporting. Use Value: Meets −40°C to +85°C extended temp spec and provides 100ns MR glitch immunity critical for telecom reliability standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad voltage monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6714CUB+ | VCC threshold is 2.85V to 3.00V (−10% of 3.3V), higher hysteresis margin; same PFI architecture and pinout. | Better suited for systems requiring wider tolerance on 3.3V rail due to aging or regulation drift. | Select MAX6714CUB+ when system VCC regulation spec allows −10% deviation and tighter noise immunity is needed. |
| TPS3808G33DBVR | Single-channel 3.3V supervisor with 200ms reset timeout, no PFI inputs; SOT-23-6 package; 1.4µA quiescent current. | Lacks multi-rail monitoring capability; requires three additional ICs to match MAX6714DUB+ functionality. | Choose TPS3808G33DBVR only for single-rail reset-only applications where ultra-low IQ dominates design priority. |
Compared with MAX6714CUB+, the MAX6714DUB+ offers tighter VCC trip accuracy for stable 3.3V systems; compared with TPS3808G33DBVR, it delivers integrated triple PFI monitoring and space savings but at higher IQ-making it optimal for multirail supervision where board area and component count are constrained.
Availability
MAX6714DUB+ is available at Aetrix Electronics and suitable for server power sequencing, industrial PLC I/O modules, notebook embedded controllers, and telecom line cards requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.
Supply support for MAX6714DUB+ 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, computing, and communications markets.
The MAX6714DUB+ belongs to Maxim's voltage supervisor product line, engineered specifically for multivoltage system monitoring with integrated reset timing, adjustable power-fail detection, and minimal external component count.
FAQ
What is the exact VCC reset threshold voltage for MAX6714DUB+?
The MAX6714DUB+ has a factory-trimmed VCC reset threshold of 2.85V to 3.00V, corresponding to −5% of a nominal 3.3V supply. This range is guaranteed over −40°C to +85°C and reflects the minimum voltage at which the RESET output deasserts after recovery. The threshold is set by internal resistor networks and does not require calibration.
Can MAX6714DUB+ monitor voltages other than 3.3V?
Yes - while its VCC input is fixed at 3.3V (−5%), the MAX6714DUB+ monitors three additional voltages via PFI1–PFI3 inputs. Each accepts an external resistor divider to scale any input voltage down to the internal 0.623V reference, enabling precise supervision of rails such as 5V, 12V, 24V, or custom levels. The threshold accuracy remains ±2.0% across temperature.
Does MAX6714DUB+ require external components to operate?
No external components are required for basic operation of the MAX6714DUB+. Its VCC reset function works standalone, and the MR input includes a 20kΩ internal pullup. External resistors are only needed when configuring PFI1–PFI3 for non-0.62V thresholds; even then, only two resistors per input are necessary - no capacitors, timers, or references are required.
What is the reset timeout period of MAX6714DUB+ and is it adjustable?
The MAX6714DUB+ provides a fixed minimum reset timeout period of 140ms, with typical values of 210ms and maximum of 280ms over temperature. This timing is generated internally and is not user-adjustable. It ensures µP reset hold time meets industry-standard boot requirements without external RC networks or configuration pins.
How does the manual reset (MR) input interact with the VCC reset function in MAX6714DUB+?
In the MAX6714DUB+, the MR input and VCC reset are OR'ed internally: RESET asserts low if either VCC drops below 2.85V or MR is driven low. After MR returns high, RESET remains low for the full 140ms timeout period regardless of VCC state. If VCC is already below threshold when MR is released, RESET stays low until both conditions are satisfied - ensuring deterministic reset behavior under combined faults.
MAX6714DUB+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 4
- Voltage - Threshold:
- 3.08V, Adj, Adj, Adj
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-uMAX/uSOP
MAX6714DUB+ FAQ
1.How can I place an order for MAX6714DUB+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6714DUB+ 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 MAX6714DUB+ reliable?
The price and inventory of MAX6714DUB+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6714DUB+ is usually 5 days.
3.What payment methods are accepted for MAX6714DUB+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6714DUB+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6714DUB+?
MAX6714DUB+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6714DUB+ 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 MAX6714DUB+?
For technical support, including MAX6714DUB+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6714DUB+ requirements.
6.How does Aetrix verify that MAX6714DUB+ is sourced from the original manufacturer or authorized distributors?
All MAX6714DUB+ 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 MAX6714DUB+ meets industry standards.
7.What is the process for return or replacement of MAX6714DUB+?
All MAX6714DUB+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6714DUB+, 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 MAX6714DUB+ part is unused and in its original packaging.
Return procedure for MAX6714DUB+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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