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Analog Devices Inc./Maxim Integrated MAX6755UKTD3+T
- Part No.:
- MAX6755UKTD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6755UKTD3+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,806
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Product details
Overview
MAX6755UKTD3+T from Analog Devices is a low-power single-voltage window detector that monitors 3.3V system supplies for undervoltage and overvoltage conditions with ±10% factory-trimmed thresholds (UVTH = 2.805–2.970V, OVTH = 3.630–3.795V), 100ms minimum reset timeout, and active-high push-pull RESET output. It operates from 1.0V to 6.0V supply voltage, draws only 13–30µA, and supports automotive-grade temperature range (−40°C to +125°C) in SOT23-5 package.
For engineers reviewing the MAX6755UKTD3+T datasheet, MAX6755UKTD3+T pinout, MAX6755UKTD3+T application, or MAX6755UKTD3+T equivalent, key selection criteria include its fixed 3.3V monitoring window, D3 timeout option, push-pull active-high reset assertion, manual reset input, and immunity to short transients in telecom and server power-rail supervision.
Technical Context
The MAX6755UKTD3+T implements a precision bandgap reference-based window detection architecture with independent UV/OV comparators feeding a logic-controlled reset generator. Its SET pin configures threshold hysteresis to ±10% by connecting to VCC, enabling stable operation across temperature without external components.
It features a 100ms minimum timeout period (D3 suffix) after UV/OV recovery before deasserting RESET, and includes an active-low manual reset input (MR) with 26kΩ internal pullup and 4µs minimum pulse width - ensuring deterministic system initialization under fault or user-triggered conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.0V to 6.0V - ensures valid output states even during brownout down to 1V, supporting ultra-low-voltage microcontroller supervision. |
| Undervoltage Threshold (UVTH) | 2.805V (min) to 2.970V (max) at TA = −40°C to +125°C - factory-trimmed for 3.3V nominal rail with ±10% window (T suffix). |
| Overvoltage Threshold (OVTH) | 3.630V (min) to 3.795V (max) at TA = −40°C to +125°C - matches UVTH symmetry for robust 3.3V window detection. |
| Reset Timeout Period | 100ms (min), 185ms (typ), 320ms (max) - D3 suffix guarantees extended hold time for safe processor boot sequencing. |
| Supply Current (ICC) | 13µA (min) to 30µA (max) at VCC = 3.6V - enables always-on monitoring in battery-backed or energy-constrained systems. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive, industrial control, and telecom infrastructure applications. |
| Output Type | Active-high push-pull RESET - eliminates need for external pullup resistor and provides fast, rail-to-rail logic-level assertion. |
Pinout & Package
SOT23-5 package (Package Code U5+1/U5+1A, Outline 21-0057), 5-pin surface-mount device with exposed pad not present. Pin 1 = VCC, Pin 2 = GND, Pin 3 = MR, Pin 4 = RESET, Pin 5 = SET.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VCC | Power Input & Monitored Voltage | Supplies device and serves as the 3.3V rail being supervised; requires 0.1µF bypass capacitor to GND. |
| 2 - GND | Ground Reference | Common return path for all internal circuitry and output drivers; must be low-impedance connection. |
| 3 - MR | Manual Reset Input | Active-low signal; internally pulled up to VCC via 26kΩ; asserts RESET when driven low for ≥4µs. |
| 4 - RESET | Reset Output | Active-high push-pull output; drives high during normal operation, pulls low on UV/OV fault or MR assertion. |
| 5 - SET | Window Threshold Select | Connected to VCC to configure ±10% window; open or floating not allowed - must be tied to defined voltage. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-Trimmed 3.3V Window Detection | Eliminates external resistor dividers and calibration effort for standard 3.3V I/O rail supervision. |
| ±10% Adjustable Window via SET Pin | Configurable hysteresis improves noise immunity without adding external components or layout area. |
| 100ms Minimum Reset Timeout (D3) | Guarantees sufficient hold time for microprocessor initialization after power stabilization. |
| Active-High Push-Pull RESET Output | Reduces BOM count and PCB footprint by removing external pullup resistor requirement. |
| 10µA Typical Quiescent Current | Enables continuous monitoring in always-on subsystems without compromising battery life. |
Applications
| Telecom Power Supervision | Server CPU Core Rail Monitoring |
|---|---|
Use Scenario: Monitoring 3.3V management rails in optical line terminals and baseband units where transient immunity and guaranteed timeout are critical. IC Role / Device Role / Timing Role: Window detector asserting active-high RESET to halt FPGA configuration until stable 3.3V is confirmed. Use Value: Prevents configuration corruption during power-up ramp by enforcing 100ms minimum reset hold time after UV recovery. | Use Scenario: Supervising 3.3V I/O supply in dual-socket server motherboards with hot-swap capability. IC Role / Device Role / Timing Role: Fault-detection IC generating reset pulse on overvoltage events exceeding 3.795V, protecting PCIe root complexes. Use Value: Factory-trimmed ±10% OV/UV thresholds ensure consistent trip points across production lots without calibration. |
| Automotive Body Control Module | Industrial PLC I/O Power Sequencing |
Use Scenario: Monitoring 3.3V CAN transceiver supply in body control modules operating at −40°C to +125°C. IC Role / Device Role / Timing Role: Single-supply window detector providing fail-safe reset to microcontroller on supply deviation. Use Value: AEC-Q100 qualification (via /V suffix variants) and wide temperature range support harsh under-hood environments. | Use Scenario: Ensuring clean power-up of isolated 3.3V digital I/O rails in programmable logic controllers. IC Role / Device Role / Timing Role: System supervisor asserting RESET until 3.3V rail settles within ±10% window and remains stable for ≥100ms. Use Value: Manual reset input (MR) allows field-service technicians to force controlled reinitialization without power cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar window voltage detection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6755UKTD0+T | Same 3.3V ±10% thresholds and push-pull active-high RESET, but uses 20µs propagation delay (D0) instead of 100ms timeout. | Used where immediate reset deassertion is required post-recovery (e.g., real-time control loops), not long-duration boot hold. | Select MAX6755UKTD0+T only if system timing requires sub-100µs response; MAX6755UKTD3+T is preferred for microprocessor reset sequencing. |
| TLV809E33DBZR | Single-channel 3.3V supervisor with 200ms reset timeout, open-drain active-low RESET, no SET pin or manual reset input. | Lacks configurable hysteresis and MR functionality; suitable only for basic reset generation without supervision flexibility. | Choose TLV809E33DBZR only for cost-sensitive, non-automotive designs requiring minimal feature set and open-drain interface compatibility. |
Compared with MAX6755UKTD0+T and TLV809E33DBZR, the MAX6755UKTD3+T uniquely combines factory-trimmed ±10% window, active-high push-pull output, manual reset input, and guaranteed 100ms timeout - making it optimal for robust, maintenance-friendly microprocessor supervision in demanding environments.
Availability
MAX6755UKTD3+T is available at Aetrix Electronics and suitable for telecom power supervision, server CPU core rail monitoring, and automotive body control module applications requiring stable component supply, long-lifecycle availability, and AEC-Q100-aligned performance.
Supply support for MAX6755UKTD3+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, headquartered in Wilmington, MA.
The MAX6754–MAX6764 family was designed specifically for low-power, high-accuracy system voltage supervision in space-constrained, thermally demanding applications such as networking equipment and automotive ECUs.
FAQ
What is the exact undervoltage and overvoltage threshold range for MAX6755UKTD3+T at full temperature range?
The MAX6755UKTD3+T has a guaranteed undervoltage threshold (UVTH) of 2.805V to 2.970V and overvoltage threshold (OVTH) of 3.630V to 3.795V across −40°C to +125°C. These values correspond to the T-suffix 3.3V nominal rating with ±10% window (SET = VCC), as specified in the Electrical Characteristics table of the MAX6754–MAX6764 datasheet.
Does MAX6755UKTD3+T support manual reset functionality, and how is it implemented?
Yes, MAX6755UKTD3+T includes an active-low manual reset input (MR) on Pin 3. Driving MR below 0.23 × VCC for ≥4µs asserts the RESET output low. MR is internally pulled up to VCC via a 26kΩ resistor, so an external pullup is unnecessary. The asserted state persists for the full D3 timeout period (100–320ms) after MR returns high.
What package type and footprint does MAX6755UKTD3+T use, and is thermal performance documented?
MAX6755UKTD3+T uses the 5-pin SOT23-5 package (Outline 21-0057, Land Pattern 90-0174). Thermal resistance is documented as θJA = 324.3°C/W (single-layer board) and 255.9°C/W (multi-layer board), with θJC = 82°C/W and 81°C/W respectively - confirming suitability for compact, convection-cooled layouts in telecom and industrial modules.
Can MAX6755UKTD3+T monitor voltages other than 3.3V, and what limits its adaptability?
No, MAX6755UKTD3+T is factory-trimmed exclusively for 3.3V nominal supply monitoring (T-suffix). Its internal voltage divider and reference are fixed; it cannot monitor 5V, 2.5V, or adjustable rails. For other voltages, select variants like MAX6755UKLD3+T (5V) or MAX6763/MAX6764 (externally adjustable down to 0.5V).
Is MAX6755UKTD3+T qualified for automotive applications, and what compliance documentation applies?
The MAX6755UKTD3+T itself is not AEC-Q100 qualified; only /V-suffixed variants (e.g., MAX6755UKTD3/V+) carry that qualification. However, its −40°C to +125°C operating range, 10µA quiescent current, and robust transient immunity align with automotive subsystem requirements - design-in for non-safety-critical modules is feasible with appropriate system-level validation.
MAX6755UKTD3+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:
- 3.3V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6755UKTD3+T FAQ
1.How can I place an order for MAX6755UKTD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6755UKTD3+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 MAX6755UKTD3+T reliable?
The price and inventory of MAX6755UKTD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6755UKTD3+T is usually 5 days.
3.What payment methods are accepted for MAX6755UKTD3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6755UKTD3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6755UKTD3+T?
MAX6755UKTD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6755UKTD3+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 MAX6755UKTD3+T?
For technical support, including MAX6755UKTD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6755UKTD3+T requirements.
6.How does Aetrix verify that MAX6755UKTD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6755UKTD3+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 MAX6755UKTD3+T meets industry standards.
7.What is the process for return or replacement of MAX6755UKTD3+T?
All MAX6755UKTD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6755UKTD3+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 MAX6755UKTD3+T part is unused and in its original packaging.
Return procedure for MAX6755UKTD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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