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Analog Devices Inc./Maxim Integrated MAX6755UKWD0+T
- Part No.:
- MAX6755UKWD0+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6755UKWD0+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,288
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Product details
Overview
MAX6755UKWD0+T from Analog Devices is a low-power, single-supply window voltage detector with factory-trimmed 1.8V nominal monitoring, ±15% adjustable window (1.53V UV / 2.07V OV), 20μs propagation delay, active-high push-pull RESET output, and manual reset input. It monitors microprocessor power rails in telecom and industrial systems where precise undervoltage/overvoltage fault detection is required.
For engineers reviewing the MAX6755UKWD0+T datasheet, MAX6755UKWD0+T pinout, MAX6755UKWD0+T application, or MAX6755UKWD0+T equivalent, key selection criteria include its 1.8V fixed threshold with ±15% window select via SET pin, 10μA supply current at 3.6V, operation down to VCC = 1.0V, and SOT23-5 package compatibility with space-constrained embedded designs.
Technical Context
The MAX6755UKWD0+T implements a precision bandgap reference with internal resistor-divider network to establish fixed 1.8V nominal thresholds. Its SET pin configures hysteresis as ±5%, ±10%, or ±15% - for UKW suffix, biasing SET to VCC/2 enables ±15% window (UVTH = 1.53V, OVTH = 2.07V at TA = +25°C).
It features an active-high push-pull RESET output with guaranteed logic state down to VCC = 1.0V, 20μs typical propagation delay on VCC transitions, and MR input with 26kΩ internal pullup. No latched OV function or dual-supply monitoring - distinguishing it from MAX6760–MAX6762 series.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal VCC Threshold | 1.8V - factory-trimmed for monitoring 1.8V system supplies with ±15% window (1.53V UV / 2.07V OV) |
| Supply Current | 13µA typ at 3.6V - enables battery-backed or ultra-low-power applications |
| Operating Voltage Range | 1.0V to 6.0V - RESET output remains valid even when VCC drops to 1.0V |
| Timeout Period | 20µs typ - fast response for transient overvoltage/undervoltage events |
| Output Type | Active-high push-pull RESET - eliminates need for external pullup resistor |
| Temperature Range | -40°C to +125°C - qualified for automotive and industrial under-hood environments |
| Threshold Hysteresis | 0.7% - prevents chatter during slow-rising/falling supply edges |
Pinout & Package
MAX6755UKWD0+T is housed in a 5-pin SOT23-5 package (package code U5+1), with exposed pad not present. Pin 1 is VCC, Pin 2 is GND, Pin 3 is MR, Pin 4 is RESET, and Pin 5 is SET.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VCC | Power Input & Monitored Supply | Supplies device and serves as the voltage being monitored; requires 0.1µF bypass capacitor to GND |
| 2 - GND | Ground Reference | Common return path for all internal circuitry and output drivers |
| 3 - MR | Active-Low Manual Reset Input | Drives RESET high when pulled low; internally pulled up to VCC via 26kΩ resistor |
| 4 - RESET | Active-High Push-Pull Output | Asserts high during UV/OV fault or MR assertion; no external pullup needed |
| 5 - SET | Window Threshold Select | Bias to VCC/2 for ±15% window; connects to GND for ±5%, VCC for ±10% |
Key Features
| Feature | Design Value |
|---|---|
| Factory-Trimmed 1.8V Threshold | Eliminates external resistor networks; ensures ±1.5% initial accuracy over temperature |
| ±15% Adjustable Window | Enables robust margining against supply ripple and tolerance stack-up in 1.8V FPGA I/O rails |
| 10µA Ultra-Low ICC | Extends battery life in always-on monitoring circuits without compromising response speed |
| VCC = 1.0V Output Validity | Guarantees correct RESET logic state during brownout recovery before full rail stabilization |
| 20µs Fast Propagation Delay | Meets tight timing requirements for real-time fault shutdown in DC-DC converter feedback loops |
Applications
| Telecom Power Monitoring | Data Center Server Rails |
|---|---|
Use Scenario: Monitoring 1.8V auxiliary supply in optical line terminal (OLT) chassis where voltage droop must trigger immediate processor halt. IC Role / Device Role / Timing Role: Single-point window detector asserting active-high RESET to halt ARM-based control MCU within 20µs of UV event. Use Value: Prevents corrupted firmware writes during unstable 1.8V rail by guaranteeing RESET assertion before VCC falls below 1.53V. | Use Scenario: Guarding 1.8V core voltage of server SoC during hot-swap PSU insertion where inrush causes brief overvoltage. IC Role / Device Role / Timing Role: Detects >2.07V overvoltage on 1.8V rail and asserts RESET to initiate graceful shutdown sequence. Use Value: Avoids latch-up in 1.8V I/O banks by responding to 200mV overvoltage within 20µs, faster than typical PMIC response. |
| Industrial PLC I/O Modules | Automotive ADAS Camera Power |
Use Scenario: Supervising isolated 1.8V digital supply in DIN-rail mounted PLC where EMI induces false resets. IC Role / Device Role / Timing Role: Window detector with ±15% hysteresis rejects sub-300ns transients while asserting RESET on sustained UV. Use Value: Immunity to short voltage transients eliminates nuisance trips in electrically noisy factory environments. | Use Scenario: Monitoring 1.8V sensor interface rail in 77GHz radar camera module operating at -40°C to +125°C. IC Role / Device Role / Timing Role: Ensures camera SoC only boots when 1.8V rail is stable between 1.53V–2.07V across full automotive temperature range. Use Value: Factory-trimmed thresholds maintain <±2.5% total error over temperature, enabling reliable cold-start operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar window voltage monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6755UKTD0+T | Fixed ±10% window (1.62V UV / 1.98V OV) instead of ±15%; identical pinout, timing, and output drive | Suitable where tighter window reduces false triggers on clean 1.8V rails but sacrifices margin for ripple-heavy supplies | Select when system supply ripple is <±50mV and higher UV threshold improves noise immunity |
| TLV809KDBZR | Single undervoltage detector only (no overvoltage); 1.8V threshold, open-drain output, 350ms reset timeout | Lacks OV detection and fast 20µs response; requires external pullup and cannot replace window functionality | Only acceptable if overvoltage protection is handled elsewhere and long timeout is acceptable |
Compared with MAX6755UKTD0+T and TLV809KDBZR, the MAX6755UKWD0+T uniquely delivers ±15% window coverage for 1.8V rails with active-high push-pull output and microsecond response - critical for safety-critical 1.8V domain supervision where both UV and OV faults must be detected rapidly without external components.
Availability
MAX6755UKWD0+T is available at Aetrix Electronics and suitable for telecom infrastructure, data center server management, and industrial PLC applications requiring stable component supply with guaranteed long-term availability.
Supply support for MAX6755UKWD0+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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The MAX6755UKWD0+T belongs to the MAX6754–MAX6764 family of low-power window detectors, designed specifically for reliable power-supply supervision in space- and power-constrained embedded systems.
FAQ
What is the exact undervoltage and overvoltage threshold for MAX6755UKWD0+T at 25°C?
The MAX6755UKWD0+T has a factory-trimmed 1.8V nominal threshold with ±15% window selected via SET pin bias. At TA = +25°C, its undervoltage threshold is 1.530V and overvoltage threshold is 2.070V, per Electrical Characteristics Table on page 3 of the datasheet. These values shift by <±2.5% over -40°C to +125°C.
Does MAX6755UKWD0+T require an external pullup resistor on the RESET pin?
No. The MAX6755UKWD0+T features an active-high push-pull RESET output, meaning it actively drives high during fault conditions and low during normal operation. Unlike open-drain variants, it does not require an external pullup resistor - simplifying PCB layout and reducing BOM count.
Can MAX6755UKWD0+T monitor voltages other than 1.8V?
No. The MAX6755UKWD0+T is factory-trimmed exclusively for 1.8V nominal monitoring. Its internal resistor divider is laser-trimmed for 1.8V; it cannot be reconfigured for other nominal voltages. For adjustable thresholds, consider MAX6763/MAX6764 or MAX6760–MAX6762 with external divider networks.
What is the function of the SET pin on MAX6755UKWD0+T?
The SET pin on MAX6755UKWD0+T selects the window width: connect to GND for ±5%, to VCC for ±10%, or bias to VCC/2 (e.g., via resistor divider) for ±15%. For MAX6755UKWD0+T, the 'W' suffix indicates ±15% window, so SET must be biased to VCC/2 to achieve the specified 1.53V/2.07V thresholds.
Is MAX6755UKWD0+T qualified for automotive applications?
The MAX6755UKWD0+T is specified over -40°C to +125°C and meets AEC-Q100 stress testing requirements only for /V-grade parts (e.g., MAX6755UKWD0+TV). The standard MAX6755UKWD0+T is industrial-grade; for automotive use, confirm ordering code suffix and consult Analog Devices' automotive qualification documentation.
MAX6755UKWD0+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:
- Obsolete
- 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 High
- Reset Timeout:
- 20µs Typical
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6755UKWD0+T FAQ
1.How can I place an order for MAX6755UKWD0+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6755UKWD0+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 MAX6755UKWD0+T reliable?
The price and inventory of MAX6755UKWD0+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6755UKWD0+T is usually 5 days.
3.What payment methods are accepted for MAX6755UKWD0+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6755UKWD0+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6755UKWD0+T?
MAX6755UKWD0+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6755UKWD0+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 MAX6755UKWD0+T?
For technical support, including MAX6755UKWD0+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6755UKWD0+T requirements.
6.How does Aetrix verify that MAX6755UKWD0+T is sourced from the original manufacturer or authorized distributors?
All MAX6755UKWD0+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 MAX6755UKWD0+T meets industry standards.
7.What is the process for return or replacement of MAX6755UKWD0+T?
All MAX6755UKWD0+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6755UKWD0+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 MAX6755UKWD0+T part is unused and in its original packaging.
Return procedure for MAX6755UKWD0+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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