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Analog Devices Inc./Maxim Integrated MAX6755UKTD0+
- Part No.:
- MAX6755UKTD0+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6755UKTD0+.pdf
- Description:
- MAX6755 LOW-POWER, SINGLE-VOLTAG
- Quantity:
- Payment:
- Shipping:
Inventory:488
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Product details
Overview
MAX6755UKTD0+ from Maxim Integrated is a low-power, single-voltage window detector IC that monitors system supply voltage (VCC) for undervoltage and overvoltage conditions and asserts a single active-high push-pull RESET output. It features factory-trimmed 3.3V nominal threshold (±10% window via SET = VCC), 20µs typical propagation delay, manual reset input (MR), and operates from 1.0V to 6.0V supply across –40°C to +125°C. It is used in microprocessor supervision for telecom power modules.
For engineers reviewing the MAX6755UKTD0+ datasheet, MAX6755UKTD0+ pinout, MAX6755UKTD0+ application, or MAX6755UKTD0+ equivalent, key selection criteria include its fixed 3.3V monitoring window, active-high push-pull RESET output, 20µs fast response, MR input compatibility, and SOT23-5 lead-free packaging for space-constrained embedded power rails.
Technical Context
The MAX6755UKTD0+ implements a precision internal voltage reference with comparator-based window detection logic, where SET pin configuration selects ±5%, ±10%, or ±15% hysteresis around the factory-set nominal voltage. Its RESET output remains asserted until VCC rises above UVTH and stays within OVTH for ≥20µs - no timeout delay is applied (D0 option).
It integrates a 26kΩ internal pull-up on MR, supports operation down to VCC = 1.0V with valid outputs, and maintains immunity to transients ≤300ns. The device does not monitor dual supplies or provide separate UV/OV outputs - it delivers only one combined RESET signal with active-high push-pull drive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal VCC Threshold | 3.3V (factory-trimmed, T-suffix); enables direct supervision of 3.3V I/O or core rails without external resistors. |
| Window Tolerance | ±10% (SET = VCC); provides 2.97V UVTH / 3.63V OVTH at +25°C - sufficient margin for typical 3.3V supply ripple. |
| RESET Output Type | Active-high push-pull; drives high to VCC when deasserted, sinks up to 4mA when asserted - eliminates need for external pull-up. |
| Propagation Delay | 20µs (typ); ensures rapid fault response for real-time microprocessor reset during brownout or surge events. |
| Supply Current | 13µA (typ at VCC = 3.6V); enables always-on monitoring in battery-backed or ultra-low-power systems. |
| Operating Temperature | –40°C to +125°C; qualified for under-hood automotive, industrial PLC, and telecom base station environments. |
| Package | SOT23-5 (lead-free, +T suffix); 2.9mm × 1.6mm footprint compatible with high-density PCB layouts. |
Pinout & Package
MAX6755UKTD0+ is housed in a 5-pin SOT23-5 package with exposed pad (EP) internally connected to GND. Pin 1 is VCC, Pin 2 is GND, Pin 3 is MR, Pin 4 is RESET, and Pin 5 is SET. All pins are surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VCC | Power input & monitored supply | Supplies internal circuitry and serves as the voltage being supervised; output validity guaranteed down to 1.0V. |
| 2 - GND | Reference ground | Common return path for all internal comparators, reference, and output drivers; EP must be connected to GND for thermal/EMI performance. |
| 3 - MR | Active-low manual reset input | Drives RESET high when pulled low; internal 26kΩ pull-up allows button-only reset implementation without external resistor. |
| 4 - RESET | Active-high push-pull output | Asserts high during UV/OV fault; deasserts low after VCC returns to valid window - directly interfaces µP reset pin without level-shifting. |
| 5 - SET | Window tolerance select | Logic level configures hysteresis: GND = ±5%, VCC = ±10%, VCC/2 = ±15%; sets UVTH/OVTH spacing without trimming components. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 3.3V window detection | Eliminates external resistor networks and calibration effort for standard 3.3V rail supervision. |
| 20µs fast propagation delay (D0) | Enables immediate microprocessor reset during transient faults - critical for deterministic system recovery. |
| Active-high push-pull RESET output | Reduces BOM count by removing external pull-up resistor; simplifies interface to modern µP reset inputs requiring active-high assertion. |
| Manual reset input with internal pull-up | Supports hardware reset button implementation using only a momentary switch - no external biasing required. |
| –40°C to +125°C extended temperature range | Validates operation in harsh environments including automotive engine control units and industrial motor drives. |
Applications
| Telecom Power Module Supervision | Industrial PLC CPU Rail Monitoring |
|---|---|
Use Scenario: Monitors 3.3V auxiliary supply in LTE base station power management unit to prevent FPGA configuration corruption during voltage sags. IC Role / Device Role / Timing Role: Single-point window detector asserting active-high RESET to halt processor execution until rail stabilizes. Use Value: 20µs response ensures reset occurs before logic state collapse; ±10% window accommodates 3.3V ±3% tolerance per IEEE 802.3af. |
Use Scenario: Supervises 3.3V I/O voltage in programmable logic controller backplane to safeguard digital input/output integrity during factory floor voltage fluctuations. IC Role / Device Role / Timing Role: Standalone reset generator interfacing directly to ARM Cortex-M7 reset pin with no glue logic. Use Value: Push-pull output drives reset line without external components; -40°C to +125°C rating matches PLC enclosure thermal profile. |
| Automotive Body Control Module | Server Board Management Controller (BMC) |
Use Scenario: Watches 3.3V microcontroller supply in vehicle door module to trigger safe shutdown during battery cold-crank events (4.5V–12V transients). IC Role / Device Role / Timing Role: Fault-detection element feeding reset signal to ASIL-B compliant MCU via dedicated reset pin. Use Value: Immunity to ≤300ns transients prevents false resets during load-dump noise; lead-free SOT23-5 meets automotive RoHS requirements. |
Use Scenario: Provides secondary reset supervision for BMC's 3.3V management rail in dual-CPU server motherboard, independent of primary PMIC reset. IC Role / Device Role / Timing Role: Redundant voltage monitor ensuring BMC remains functional even if main power sequencer fails. Use Value: Low 13µA quiescent current avoids loading shared 3.3V standby rail; D0 timing enables sub-100µs fault containment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single-voltage window detection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV809E33DBZR | Fixed 3.3V undervoltage detector only (no overvoltage detection); open-drain output; no SET pin or MR input. | Limited to brownout-only protection; requires external pull-up and cannot supervise surges or transients above nominal. | Select when only UV protection is needed and board space permits pull-up resistor; not suitable for full window monitoring. |
| ADM6705-33ARTZ-RL | 3.3V window detector with 200ms timeout (not D0); push-pull active-low RESET; no MR input; ±2% accuracy (tighter than MAX6755). | Slower response delays system recovery; lacks manual reset capability for field service or debug. | Choose when higher threshold accuracy is prioritized over speed and reset flexibility - e.g., medical equipment with strict certification. |
Compared with TLV809E33DBZR and ADM6705-33ARTZ-RL, MAX6755UKTD0+ uniquely combines full window (UV+OV) detection, 20µs speed, active-high push-pull output, and MR support in a single SOT23-5 package - enabling simpler, faster, and more robust reset architecture for 3.3V systems.
Availability
MAX6755UKTD0+ is available at Aetrix Electronics and suitable for telecom power modules, industrial PLCs, and automotive body control units requiring stable component supply with guaranteed long-term availability and lead-free compliance.
Supply support for MAX6755UKTD0+ 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, automotive, and communications systems.
The MAX6754–MAX6764 family was engineered specifically for reliable, low-power voltage supervision in space- and power-constrained embedded systems - delivering factory-trimmed accuracy, fast fault response, and flexible output configurations.
FAQ
What is the exact undervoltage and overvoltage threshold for MAX6755UKTD0+ at room temperature?
The MAX6755UKTD0+ has a factory-trimmed nominal VCC threshold of 3.3V with ±10% window (SET = VCC), resulting in UVTH = 2.97V and OVTH = 3.63V at +25°C. These values are specified across –40°C to +125°C with ±0.7% hysteresis, and actual thresholds remain within min/max limits per the Electrical Characteristics table.
Does MAX6755UKTD0+ support dual-voltage monitoring like some other devices in the MAX6754–MAX6764 family?
No, MAX6755UKTD0+ is a single-voltage window detector and monitors only VCC. Dual-voltage variants such as MAX6760/MAX6761/MAX6762 include VCC2 input and separate UV/OV outputs - MAX6755UKTD0+ lacks VCC2, OVLATCH, and independent UV/OV pins entirely.
Can the RESET output of MAX6755UKTD0+ drive a microprocessor reset pin directly?
Yes, the MAX6755UKTD0+ RESET output is an active-high push-pull driver capable of sourcing up to 4mA at VCC ≥ 4.75V and sinking 100µA minimum. It interfaces directly with standard µP reset inputs (e.g., ARM, x86 BMC) without external pull-up or level-shifting components.
What is the function of the SET pin on MAX6755UKTD0+ and how should it be connected?
The SET pin on MAX6755UKTD0+ selects the window tolerance: connect to GND for ±5%, to VCC for ±10%, or bias to VCC/2 for ±15%. For the UKTD0+ variant (T-suffix, D0 timing), SET = VCC configures the 3.3V ±10% window - this connection is required for correct threshold operation.
Is MAX6755UKTD0+ compatible with 1.8V or 2.5V supply rails?
No - MAX6755UKTD0+ is factory-trimmed for 3.3V nominal operation (T-suffix). For 1.8V rails, use MAX6755UKWD0+ (W-suffix); for 2.5V, use MAX6755UKZD0+. Each suffix corresponds to a specific internal voltage divider ratio; substituting suffixes is not electrically interchangeable.
MAX6755UKTD0+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Power Supply Monitor
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 3.3V
- 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
MAX6755UKTD0+ FAQ
1.How can I place an order for MAX6755UKTD0+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6755UKTD0+ 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 MAX6755UKTD0+ reliable?
The price and inventory of MAX6755UKTD0+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6755UKTD0+ is usually 5 days.
3.What payment methods are accepted for MAX6755UKTD0+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6755UKTD0+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6755UKTD0+?
MAX6755UKTD0+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6755UKTD0+ 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 MAX6755UKTD0+?
For technical support, including MAX6755UKTD0+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6755UKTD0+ requirements.
6.How does Aetrix verify that MAX6755UKTD0+ is sourced from the original manufacturer or authorized distributors?
All MAX6755UKTD0+ 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 MAX6755UKTD0+ meets industry standards.
7.What is the process for return or replacement of MAX6755UKTD0+?
All MAX6755UKTD0+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6755UKTD0+, 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 MAX6755UKTD0+ part is unused and in its original packaging.
Return procedure for MAX6755UKTD0+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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