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Analog Devices Inc./Maxim Integrated MAX6754UKWD3+T
- Part No.:
- MAX6754UKWD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6754UKWD3+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,097
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Product details
Overview
The MAX6754UKWD3+T from Analog Devices is a low-power, single-supply window voltage detector monitoring 1.8V system supplies with ±15% factory-trimmed thresholds (UVTH = 1.53V, OVTH = 2.07V), 100ms minimum reset timeout, and active-low push-pull RESET output. It features manual reset input (MR), SET pin for window selection, operates from 1.0V to 6.0V supply, draws only 13µA typical current, and is qualified for automotive-grade extended temperature operation (-40°C to +125°C).
For engineers reviewing the MAX6754UKWD3+T datasheet, MAX6754UKWD3+T pinout, MAX6754UKWD3+T application, or MAX6754UKWD3+T equivalent, this device supports critical power-rail supervision in telecom, server, and automotive DC-DC converter modules where precise 1.8V window detection with latch-free reset timing and transient immunity is required.
Technical Context
The MAX6754UKWD3+T implements a fixed-threshold window detection architecture using an internal bandgap reference and precision resistor divider network trimmed at wafer test. Its UV and OV comparators drive a single combined RESET output with programmable 100ms timeout delay, independent of VCC slew rate.
It integrates a 26kΩ internal MR pullup, SET pin biasing logic that interprets GND/VCC/VCC/2 as ±5%/±10%/±15% windows, and push-pull output stage capable of sinking 4mA at VCC ≥ 4.75V while maintaining VOL ≤ 0.3V - enabling direct interface to µP reset inputs without external pullups.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Supply Voltage | 1.8V - matches common I/O rail in modern microcontrollers and FPGAs |
| Undervoltage Threshold | 1.53V (min) / 1.62V (typ) / 1.71V (max) - ensures reliable brownout detection before logic failure |
| Overvoltage Threshold | 1.98V (min) / 2.07V (typ) / 2.16V (max) - protects against regulator overshoot or coupling transients |
| Reset Timeout Period | 100ms (min) / 185ms (typ) / 320ms (max) - guarantees sufficient hold time for full system initialization |
| Supply Current | 13µA (typ) at 3.6V - enables always-on supervision in battery-backed systems |
| Operating Temperature | -40°C to +125°C - meets AEC-Q100 Grade 0 requirements for under-hood automotive use |
| Output Type | Active-low push-pull RESET - eliminates need for external pullup resistor on µP reset line |
Pinout & Package
MAX6754UKWD3+T is housed in a 5-pin SOT23 package (package code U5+1A, outline 21-0057), with exposed pad not present. Pin functions are validated per Maxim Integrated datasheet Rev 12 (2022).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VCC | Power Input & Monitored Rail | Supplies device and serves as the 1.8V voltage being supervised; requires 0.1µF bypass capacitor to GND |
| 2 - GND | Ground Reference | Common return path for all internal circuits and output drivers |
| 3 - MR | Manual Reset Input | Active-low signal; internally pulled up to VCC via 26kΩ; asserts RESET for ≥4µs pulse width |
| 4 - RESET | Combined UV/OV Output | Active-low push-pull output; drives low during undervoltage (<1.53V) or overvoltage (>1.98V); deasserts after 100ms timeout |
| 5 - SET | Window Select Input | Bias to VCC/2 (e.g., via resistive divider) selects ±15% window; connects to VCC for ±10%, GND for ±5% |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 1.8V window | Eliminates external resistor networks and calibration effort for 1.8V rail supervision |
| 100ms minimum reset timeout | Ensures stable power-up sequence across wide temperature and voltage ranges without timing drift |
| Push-pull RESET output | Directly drives microprocessor reset pins without external components or level-shifting |
| Manual reset input with internal pullup | Reduces BOM count by integrating 26kΩ MR pullup; simplifies board layout and debug access |
| Transient-immune comparator design | Rejects <300ns noise spikes on VCC, preventing false resets in electrically noisy environments |
Applications
| Telecom Power Supervision | Server Board Management |
|---|---|
Use Scenario: Monitoring 1.8V FPGA configuration rail in optical line cards subject to hot-swap transients and thermal cycling. IC Role / Device Role / Timing Role: Window detector asserting RESET during brownout or overshoot events; 100ms timeout ensures FPGA reconfiguration completes before release. Use Value: Prevents partial configuration and metastability by guaranteeing clean reset assertion until rail stabilizes within ±15% of 1.8V. | Use Scenario: Supervising 1.8V memory I/O supply in dual-CPU server motherboards with strict power sequencing requirements. IC Role / Device Role / Timing Role: Single-point supervision of DDR4/DDR5 I/O voltage; RESET output synchronized to BMC reset logic. Use Value: Enables deterministic boot recovery after AC loss or VRM fault without requiring firmware intervention or external timing ICs. |
| Automotive ADAS Domain Controller | Industrial PLC I/O Module |
Use Scenario: Monitoring 1.8V core supply for radar processor SoC operating in under-hood environment (-40°C to +125°C). IC Role / Device Role / Timing Role: AEC-Q100 qualified window detector providing fail-safe reset under thermal stress and load dump conditions. Use Value: Guarantees functional safety compliance by detecting sub-1.53V undervoltage events before processor lockup occurs. | Use Scenario: Supervising isolated 1.8V digital I/O supply in modular PLC backplane with multiple fieldbus interfaces. IC Role / Device Role / Timing Role: Standalone supervisor for auxiliary logic rail; MR pin used for remote watchdog-triggered reset via optocoupler. Use Value: Reduces system-level complexity by replacing discrete RC reset circuits with guaranteed 100ms timing and ±1.5% threshold accuracy over life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar window voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV809KDBZR | Single undervoltage detector only (no overvoltage function); fixed 1.83V threshold; no SET pin; 200ms reset timeout | Lacks window detection capability - unsuitable where overvoltage protection is required | Select only if system requires undervoltage-only supervision and can tolerate tighter 1.83V UV threshold without OV coverage |
| ADM6315-18ARTZ-RL | Fixed 1.8V UV detector with 200ms timeout; no OV detection; open-drain output; no MR or SET pins | No overvoltage monitoring or manual reset - limited to basic brownout detection | Choose when cost sensitivity outweighs need for window supervision and design simplicity is prioritized over feature set |
Compared with TLV809KDBZR and ADM6315-18ARTZ-RL, the MAX6754UKWD3+T uniquely delivers true window supervision (UV + OV), ±15% adjustable window via SET, and integrated MR functionality - making it the only option among the three suitable for safety-critical 1.8V rail monitoring where both under- and overvoltage faults must be detected and latched.
Availability
MAX6754UKWD3+T is available at Aetrix Electronics and suitable for telecom infrastructure, server board management, and automotive ADAS domain controllers requiring stable component supply with guaranteed long-term availability and automotive-grade qualification.
Supply support for MAX6754UKWD3+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
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The MAX6754UKWD3+T belongs to the MAX6754–MAX6764 family of low-power window voltage detectors designed specifically for robust, accurate, and ultra-low-current supervision of modern low-voltage power rails in harsh environments.
FAQ
What is the exact undervoltage and overvoltage threshold range for MAX6754UKWD3+T?
The MAX6754UKWD3+T has factory-trimmed thresholds for a nominal 1.8V supply: undervoltage threshold (UVTH) is 1.53V (min) to 1.71V (max) and overvoltage threshold (OVTH) is 1.98V (min) to 2.16V (max), corresponding to a ±15% window centered at 1.8V. These values are guaranteed over -40°C to +125°C and include hysteresis of 0.7% of VCC.
Does MAX6754UKWD3+T require external components to operate?
No, the MAX6754UKWD3+T operates autonomously with only a 0.1µF bypass capacitor on VCC to GND. It integrates an internal 26kΩ MR pullup resistor and requires no external resistors for threshold setting - the ±15% window is selected by biasing the SET pin to VCC/2, which can be achieved with a simple resistive divider if needed.
Can MAX6754UKWD3+T monitor voltages other than 1.8V?
No - the MAX6754UKWD3+T is factory-trimmed exclusively for 1.8V nominal operation (suffix 'W'). Other variants in the MAX6754 family support 0.9V–5V rails (e.g., 'L' = 5V, 'T' = 3.3V, 'Z' = 2.5V), but each part number is laser-trimmed for one specific voltage and cannot be reconfigured for alternate rails.
What is the function of the SET pin on MAX6754UKWD3+T?
The SET pin on MAX6754UKWD3+T selects the window width: connecting SET to GND configures ±5%, to VCC configures ±10%, and biasing to VCC/2 (e.g., via two equal resistors) configures ±15%. For MAX6754UKWD3+T, the 'D3' suffix indicates 100ms timeout and 'W' indicates 1.8V nominal, so SET must be biased to VCC/2 to achieve the specified ±15% window.
Is MAX6754UKWD3+T qualified for automotive applications?
Yes - the MAX6754UKWD3+T is AEC-Q100 qualified (Grade 0, -40°C to +125°C) and specified for automotive use. Its guaranteed performance across the full extended temperature range, low 13µA supply current, and transient-immune design make it suitable for ADAS domain controllers, body control modules, and infotainment power supervision.
MAX6754UKWD3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.8V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6754UKWD3+T FAQ
1.How can I place an order for MAX6754UKWD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6754UKWD3+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 MAX6754UKWD3+T reliable?
The price and inventory of MAX6754UKWD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6754UKWD3+T is usually 5 days.
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4.How is shipping managed for MAX6754UKWD3+T?
MAX6754UKWD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6754UKWD3+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 MAX6754UKWD3+T?
For technical support, including MAX6754UKWD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6754UKWD3+T requirements.
6.How does Aetrix verify that MAX6754UKWD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6754UKWD3+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 MAX6754UKWD3+T meets industry standards.
7.What is the process for return or replacement of MAX6754UKWD3+T?
All MAX6754UKWD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6754UKWD3+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 MAX6754UKWD3+T part is unused and in its original packaging.
Return procedure for MAX6754UKWD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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