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Analog Devices Inc./Maxim Integrated MAX6756UKLD0+T
- Part No.:
- MAX6756UKLD0+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6756UKLD0+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,422
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Product details
Overview
The MAX6756UKLD0+T from Analog Devices is a low-power, single-supply window voltage detector that monitors undervoltage and overvoltage conditions on a 5V system rail. It features factory-trimmed ±5% threshold accuracy (UVTH = 4.500–4.750V, OVTH = 5.250–5.500V), 20μs typical propagation delay, active-low open-drain RESET output, and manual reset input (MR). It operates across -40°C to +125°C and consumes only 13–30μA supply current - ideal for power-sensitive telecom and industrial embedded systems.
For engineers reviewing the MAX6756UKLD0+T datasheet, MAX6756UKLD0+T pinout, MAX6756UKLD0+T application, or MAX6756UKLD0+T equivalent, key selection criteria include its SOT23-5 package, fixed 5V nominal monitoring with ±5% window, open-drain reset assertion during UV/OV fault, MR-driven system-level reset initiation, and guaranteed operation down to VCC = 1.0V with outputs valid at 1V.
Technical Context
The MAX6756UKLD0+T implements a precision bandgap-based reference with internal resistor-divider networks to establish fixed 5V nominal thresholds. Its SET pin is tied to GND to configure the ±5% window (UVTH = 4.500–4.750V, OVTH = 5.250–5.500V), and it uses a D0 timeout option enabling immediate 20μs response without delay hysteresis.
It integrates a manual reset circuit with 26kΩ internal pull-up and 4μs minimum pulse width support, and its open-drain RESET output sinks up to 4mA at VCC ≥ 4.75V while maintaining VOL ≤ 0.3V - ensuring reliable interface with microcontroller NMI or reset inputs in noisy environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Supply Voltage | 5V - factory-trimmed for monitoring standard logic/system rails |
| Window Accuracy | ±5% - set by GND-connected SET pin; enables tight 4.5–5.5V detection range |
| Reset Timeout Option | D0 - 20μs typical propagation delay; no hold time required after fault clearance |
| Supply Current | 13–30μA at VCC = 3.6V - ultra-low quiescent draw for battery-backed or always-on systems |
| Operating Temperature | -40°C to +125°C - qualified for automotive under-hood and industrial control environments |
| Output Type | Active-low open-drain RESET - supports wired-OR configurations and level-shifting to lower-voltage logic |
| VCC Range | 1.0V to 6.0V - outputs remain asserted and functional even as supply drops to 1V |
Pinout & Package
MAX6756UKLD0+T is housed in a 5-pin SOT23 package (package code U5+1/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 Rail | Supplies device and serves as the 5V voltage being monitored; requires RC filter (100Ω + 0.1μF) per datasheet Figure 9 |
| 2 - GND | Reference Ground | System ground return for internal reference and output drivers |
| 3 - MR | Active-Low Manual Reset | Drives RESET low when asserted; internally pulled up to VCC via 26kΩ; 4μs min pulse width |
| 4 - RESET | Open-Drain Fault Output | Asserts low during UV/OV fault; sinks 4mA max at VCC ≥ 4.75V; compatible with µP NMI/reset pins |
| 5 - SET | Window Threshold Select | Tied to GND to fix ±5% window; no external bias needed for this variant |
Key Features
| Feature | Design Value |
|---|---|
| Factory-Trimmed 5V Window Detection | Eliminates external resistors and calibration; guarantees UVTH/OVTH within ±5% of 5V across full temperature range |
| 20μs Fast Propagation Delay | Enables real-time fault response without timeout latency - critical for protecting high-speed processors and FPGAs |
| Open-Drain RESET with 4mA Sink Capability | Directly drives standard microcontroller reset inputs without external pull-up; supports multi-source reset arbitration |
| Manual Reset with Internal 26kΩ Pull-Up | Reduces BOM count; allows push-button reset implementation with only a momentary switch to GND |
| 1V Minimum Operating Voltage | Ensures deterministic reset assertion during brownout - maintains system safety even as supply collapses |
Applications
| Telecom Power Supervision | Industrial PLC I/O Module |
|---|---|
Use Scenario: Monitoring 5V backplane power in carrier-grade line cards where undervoltage must trigger immediate processor halt before data corruption occurs. IC Role / Device Role / Timing Role: Single-point 5V window detector asserting open-drain RESET to µP NMI pin within 20μs of fault onset. Use Value: Prevents firmware execution during marginal supply; eliminates need for discrete comparator + RC timing network. | Use Scenario: Supervising 5V auxiliary supply in modular PLC base units where field-replaceable I/O modules require deterministic power-fail signaling. IC Role / Device Role / Timing Role: Primary UV/OV monitor with MR input enabling operator-initiated module reset without power cycle. Use Value: Guarantees safe state entry during brownout; MR function supports hot-swap diagnostics and maintenance mode. |
| Automotive Body Control Unit | Server Management Controller |
Use Scenario: Validating 5V domain supply in BCMs operating across -40°C to +125°C ambient, where transient immunity prevents false resets. IC Role / Device Role / Timing Role: AEC-Q100-compliant (per /V suffix family) window detector with 300ns transient immunity and 20μs response. Use Value: Meets ASIL-B readiness requirements for non-safety-critical but reliability-sensitive subsystems. | Use Scenario: Monitoring 5V standby rail in server BMCs to ensure host processor reset integrity during AC loss or PSU fault. IC Role / Device Role / Timing Role: Always-on supervisor with <30μA ICC enabling 24/7 health checking without impacting platform power budget. Use Value: Enables graceful shutdown and logging prior to complete power collapse; supports IPMI watchdog integration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar window voltage monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV809E50DBZR | Single undervoltage detector only (no overvoltage); fixed 5.0V UV threshold; no SET pin or window configuration | Lacks OV monitoring capability; cannot detect overvoltage faults on 5V rail | Select only if system requires UV-only supervision and cost sensitivity outweighs dual-threshold safety margin |
| ADM6315-5ARTZ-RL7 | 5V supervisor with reset timeout (200ms min); push-pull active-low RESET; no manual reset or window adjustment | No MR input; longer timeout limits responsiveness; lacks ±5%/±10%/±15% window select flexibility | Choose when long-duration reset hold is preferred and MR functionality is unnecessary |
Compared with TLV809E50DBZR and ADM6315-5ARTZ-RL7, the MAX6756UKLD0+T uniquely delivers combined UV/OV detection in a single chip with user-selectable window width and manual reset - enabling tighter fault coverage and field-serviceability in compact 5V systems.
Availability
MAX6756UKLD0+T is available at Aetrix Electronics and suitable for telecom power supervision, industrial PLC I/O modules, automotive body control units, and server management controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6756UKLD0+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 MAX6756UKLD0+T belongs to the MAX6754–MAX6764 window detector product line, engineered for robust, low-power voltage supervision in harsh environments where simultaneous undervoltage and overvoltage fault detection is mission-critical.
FAQ
What is the exact undervoltage and overvoltage threshold range for MAX6756UKLD0+T?
The MAX6756UKLD0+T has a factory-trimmed 5V nominal monitoring range with ±5% window set by GND-connected SET pin. Its undervoltage threshold (UVTH) is 4.500V to 4.750V (falling VCC), and overvoltage threshold (OVTH) is 5.250V to 5.500V (rising VCC), specified over -40°C to +125°C. These values are confirmed in the Electrical Characteristics table for suffix "L" and timeout "D0".
Does MAX6756UKLD0+T support manual reset, and how is it implemented?
Yes, MAX6756UKLD0+T includes an active-low manual reset (MR) input on Pin 3. Driving MR low asserts the open-drain RESET output immediately. MR is internally pulled up to VCC via a 26kΩ resistor, so only a momentary switch to GND is required. The minimum MR pulse width is 4μs, and propagation delay (tD-MR) is 300ns - all verified in the MAX6754–MAX6764 datasheet Section "Electrical Characteristics".
What package type and pin count does MAX6756UKLD0+T use?
MAX6756UKLD0+T uses a 5-pin SOT23 package (package code U5+1/U5+1A, outline number 21-0057). Pin 1 = VCC, Pin 2 = GND, Pin 3 = MR, Pin 4 = RESET, Pin 5 = SET. This compact footprint (2.9mm × 1.6mm) is validated in the "Package Information" section and Pin Configurations diagram on page 9 of the datasheet.
Can MAX6756UKLD0+T operate below 1.8V, and what happens to its outputs?
Yes, MAX6756UKLD0+T operates down to VCC = 1.0V. Its outputs remain asserted in the correct logic state (RESET low during UV/OV fault) even at 1.0V, though sink current capability reduces. At VCC ≥ 1.0V and ISINK = 100μA, VOL remains ≤ 0.3V - ensuring compatibility with low-voltage logic interfaces during brownout conditions, as specified in the "RESET, UV Output Low" electrical characteristic table.
Is MAX6756UKLD0+T AEC-Q100 qualified, and for which applications is that relevant?
The MAX6756UKLD0+T itself is not marked with /V suffix, but it belongs to the MAX6754–MAX6764 family where /V parts (e.g., MAX6756UKLD0/V) are AEC-Q100 qualified. Its -40°C to +125°C operating range, 300ns transient immunity, and robust threshold stability make it suitable for automotive body electronics such as BCMs and lighting modules - provided qualification status is confirmed per specific orderable part number and packaging.
MAX6756UKLD0+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:
- 5V
- 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
MAX6756UKLD0+T FAQ
1.How can I place an order for MAX6756UKLD0+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6756UKLD0+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 MAX6756UKLD0+T reliable?
The price and inventory of MAX6756UKLD0+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6756UKLD0+T is usually 5 days.
3.What payment methods are accepted for MAX6756UKLD0+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6756UKLD0+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6756UKLD0+T?
MAX6756UKLD0+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6756UKLD0+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 MAX6756UKLD0+T?
For technical support, including MAX6756UKLD0+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6756UKLD0+T requirements.
6.How does Aetrix verify that MAX6756UKLD0+T is sourced from the original manufacturer or authorized distributors?
All MAX6756UKLD0+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 MAX6756UKLD0+T meets industry standards.
7.What is the process for return or replacement of MAX6756UKLD0+T?
All MAX6756UKLD0+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6756UKLD0+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 MAX6756UKLD0+T part is unused and in its original packaging.
Return procedure for MAX6756UKLD0+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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