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Analog Devices Inc./Maxim Integrated MAX6756UKTD0+T
- Part No.:
- MAX6756UKTD0+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6756UKTD0+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
MAX6756UKTD0+T from Analog Devices is a low-power, single-supply window voltage detector with factory-trimmed 3.3V nominal threshold, ±10% window (2.97V–3.63V), 20μs typical reset timeout, active-low open-drain RESET output, and manual reset input. It monitors microprocessor power rails in telecom and industrial DC-DC converter modules to prevent system malfunction during undervoltage/overvoltage events.
For engineers reviewing the MAX6756UKTD0+T datasheet, MAX6756UKTD0+T pinout, MAX6756UKTD0+T application, or MAX6756UKTD0+T equivalent, key selection criteria include its SOT23-5 package, 10μA supply current, -40°C to +125°C operation, VCC monitoring down to 1.0V, and immunity to 300ns transients - critical for high-reliability embedded power sequencing.
Technical Context
The MAX6756UKTD0+T implements a fixed-threshold window detection architecture using an internal bandgap reference and comparator-based UV/OV comparators. Its SET pin configures the window width (±5%/±10%/±15%), and MR enables external reset assertion independent of supply voltage state.
It features a 20μs propagation delay from VCC crossing threshold to RESET assertion, no timeout on OV/UV outputs (only RESET has D0 timing), and guaranteed logic-state validity for VCC ≥ 1.0V - enabling safe operation during brownout recovery in automotive and industrial control systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal VCC Threshold | 3.3V with ±10% window → UVTH = 2.97V, OVTH = 3.63V at TA = +25°C |
| Supply Current | 13μA typ at VCC = 3.6V → enables battery-backed or ultra-low-power monitoring |
| Operating Voltage Range | 1.0V to 6.0V → supports valid RESET assertion even during deep brownout |
| Reset Timeout | 20μs typ → fast response for real-time power fault detection |
| Output Type | Active-low open-drain RESET → allows wired-OR with other system supervisors |
| Temperature Range | -40°C to +125°C → qualified for under-hood automotive and industrial environments |
| Transient Immunity | 300ns minimum → rejects ESD-induced glitches without false triggering |
Pinout & Package
MAX6756UKTD0+T is housed in a 5-pin SOT23 package (package code U5+1A, outline 21-0057) 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 voltage rail | Must be RC-filtered (100Ω + 0.1µF) per datasheet Figure 9 for noise immunity |
| 2 - GND | Reference ground | Common return for all internal comparators and output drivers |
| 3 - MR | Active-low manual reset input | Internally pulled up to VCC via 26kΩ; 4µs min pulse width required |
| 4 - RESET | Active-low open-drain output | Sinks 100µA at VOL ≤ 0.3V; requires external pull-up for logic-high level |
| 5 - SET | Window width select input | Connected to VCC for ±10% window; GND = ±5%, VCC/2 = ±15% |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 3.3V window detection | Eliminates external resistor dividers and calibration for standard I/O rail monitoring |
| 20μs fast propagation delay | Enables immediate system halt before CPU corruption during rapid supply collapse |
| 10μA ultra-low quiescent current | Extends battery life in always-on supervisory circuits (e.g., smart meters) |
| Open-drain RESET with 100µA sink capability | Supports multi-source reset arbitration and level translation across voltage domains |
| Manual reset input with internal 26kΩ pull-up | Reduces BOM count by eliminating external pull-up resistor |
Applications
| Telecom Power Monitoring | Data Center Server Rails |
|---|---|
Use Scenario: Monitoring 3.3V I/O supply in 5G base station FPGAs during thermal throttling events. IC Role / Device Role / Timing Role: Window detector asserting RESET within 20μs when supply drops below 2.97V or rises above 3.63V. Use Value: Prevents FPGA configuration corruption by halting clock domain before voltage excursion exceeds safe margin. | Use Scenario: Supervising 3.3V auxiliary rail in server motherboard VRM feedback loop. IC Role / Device Role / Timing Role: Single-point undervoltage/overvoltage monitor with open-drain RESET tied to BMC watchdog. Use Value: Enables BMC-initiated graceful shutdown when rail instability exceeds ±10% tolerance. |
| Industrial DC-DC Modules | Automotive Body Control Units |
Use Scenario: Input rail supervision in isolated 3.3V DC-DC converters powering PLC I/O isolators. IC Role / Device Role / Timing Role: Low-current (13μA) supervisor ensuring converter enable remains deasserted until stable 3.3V is confirmed. Use Value: Reduces no-load power loss while guaranteeing clean startup sequence under wide temperature range (-40°C to +125°C). | Use Scenario: Monitoring 3.3V microcontroller supply in BCM modules subjected to load dump transients. IC Role / Device Role / Timing Role: Transient-immune (300ns) window detector with MR pin for service-mode reset injection. Use Value: Maintains functional safety integrity during ISO 7637-2 Pulse 5a events without spurious resets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar window voltage monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV809E33DBZR | Single undervoltage detector only (no overvoltage); 3.08V threshold; 1.6μA ICC; SOT23-3 | Lacks OV detection and SET-adjustable window; suitable only for UV-only use cases | Select when only undervoltage protection is required and ultra-low current (<2μA) is critical |
| ADM6315-33D3ARTZ-RL | 3.08V UV threshold; 100ms reset timeout; push-pull RESET; no SET pin or OV detection | Fixed 100ms timeout and no overvoltage monitoring; higher ICC (20μA) | Choose for legacy designs requiring long timeout and push-pull drive without window adjustment |
Compared with TLV809E33DBZR and ADM6315-33D3ARTZ-RL, the MAX6756UKTD0+T uniquely delivers combined UV/OV detection, ±10% window adjustability via SET, 20μs speed, and open-drain flexibility - making it optimal for modern compact power management where dual-fault coverage and design adaptability are mandatory.
Availability
MAX6756UKTD0+T is available at Aetrix Electronics and suitable for telecommunications infrastructure, data center server rails, and industrial DC-DC converter modules requiring stable component supply across extended temperature and long product lifecycles.
Supply support for MAX6756UKTD0+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 precision instrumentation, industrial automation, and communications markets.
The MAX6756UKTD0+T belongs to the MAX6754–MAX6764 family of low-power window detectors, designed specifically for reliable power supply monitoring in space-constrained, thermally demanding applications such as telecom equipment and automotive ECUs.
FAQ
What is the exact undervoltage and overvoltage threshold for MAX6756UKTD0+T?
The MAX6756UKTD0+T has a factory-trimmed nominal VCC threshold of 3.3V with ±10% window: undervoltage threshold (UVTH) is 2.97V and overvoltage threshold (OVTH) is 3.63V at TA = +25°C, with guaranteed operation across -40°C to +125°C per datasheet Table 1 and Electrical Characteristics.
Does MAX6756UKTD0+T support dual-voltage monitoring?
No, MAX6756UKTD0+T monitors only a single voltage (VCC). Dual-voltage monitoring is provided by the MAX6760–MAX6762 series; MAX6756UKTD0+T is part of the single-supply MAX6754–MAX6759 group with dedicated VCC input and no VCC2 pin.
What is the function of the SET pin on MAX6756UKTD0+T?
The SET pin on MAX6756UKTD0+T selects the window width: connecting SET to VCC configures a ±10% window (as used in MAX6756UKTD0+T), to GND selects ±5%, and biasing to VCC/2 selects ±15%. This adjusts both UVTH and OVTH proportionally around the 3.3V nominal.
Can MAX6756UKTD0+T operate with VCC below 3.3V?
Yes, MAX6756UKTD0+T operates with VCC from 1.0V to 6.0V and guarantees correct RESET logic state down to VCC = 1.0V. However, its 3.3V thresholds remain fixed - so it can supervise lower rails only if those rails fall within the 2.97V–3.63V window, which is not typical; it is intended for 3.3V nominal systems.
Is MAX6756UKTD0+T pin-compatible with other devices in the MAX6754–MAX6764 family?
MAX6756UKTD0+T uses the 5-pin SOT23 package shared with MAX6754/MAX6755 variants, but pin functions differ for models with separate UV/OV outputs (e.g., MAX6757) or dual-supply inputs (e.g., MAX6760). Specifically, MAX6756UKTD0+T pinout (VCC-GND-MR-RESET-SET) is unique to the single-output, open-drain subgroup and not interchangeable with push-pull or dual-output variants.
MAX6756UKTD0+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:
- 3.3V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 20µs Typical
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6756UKTD0+T FAQ
1.How can I place an order for MAX6756UKTD0+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6756UKTD0+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 MAX6756UKTD0+T reliable?
The price and inventory of MAX6756UKTD0+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6756UKTD0+T is usually 5 days.
3.What payment methods are accepted for MAX6756UKTD0+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6756UKTD0+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6756UKTD0+T?
MAX6756UKTD0+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6756UKTD0+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 MAX6756UKTD0+T?
For technical support, including MAX6756UKTD0+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6756UKTD0+T requirements.
6.How does Aetrix verify that MAX6756UKTD0+T is sourced from the original manufacturer or authorized distributors?
All MAX6756UKTD0+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 MAX6756UKTD0+T meets industry standards.
7.What is the process for return or replacement of MAX6756UKTD0+T?
All MAX6756UKTD0+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6756UKTD0+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 MAX6756UKTD0+T part is unused and in its original packaging.
Return procedure for MAX6756UKTD0+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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