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Analog Devices Inc./Maxim Integrated MAX6756UKRD0+T
- Part No.:
- MAX6756UKRD0+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6756UKRD0+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,110
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Product details
Overview
The MAX6756UKRD0+T from Analog Devices is a low-power, single-supply window voltage detector with factory-trimmed 3.0V nominal monitoring, ±15% adjustable window (2.55V UV / 3.45V OV), 20μs propagation delay, active-low open-drain RESET output, and manual reset input. It operates from 1.0V to 6.0V supply and supports automotive-grade temperature range (-40°C to +125°C), used in DC-DC converter modules for reliable power-rail supervision.
For engineers reviewing the MAX6756UKRD0+T datasheet, MAX6756UKRD0+T pinout, MAX6756UKRD0+T application, or MAX6756UKRD0+T equivalent, key selection criteria include its fixed 3.0V threshold with ±15% window select via SET pin, open-drain RESET output compatible with 1.8V–5V logic, 10μA typical supply current, and SOT23-5 package footprint compatibility with space-constrained embedded power systems.
Technical Context
The MAX6756UKRD0+T implements a precision bandgap reference and comparator-based window detection architecture with internal voltage dividers set for 3.0V nominal VCC monitoring. Its SET pin configures hysteresis as ±5%, ±10%, or ±15% - here fixed to ±15% by suffix 'R' - enabling robust immunity to supply ripple without external components.
It features a manual reset (MR) input with 26kΩ internal pull-up and 4μs minimum pulse width, and guarantees valid RESET assertion down to VCC = 1.0V. The open-drain RESET output sinks up to 1.0mA at VCC ≥ 1.71V with VOL ≤ 0.3V, supporting direct interface to microcontroller NMI or reset inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal VCC Threshold | 3.0V - factory-trimmed for monitoring standard 3.0V system rails without calibration. |
| Window Tolerance | ±15% - selected via SET = VCC/2; yields UVTH = 2.55V, OVTH = 3.45V at +25°C. |
| Supply Current | 13µA typ at VCC = 3.6V - enables always-on supervision in battery-backed or ultra-low-power systems. |
| Reset Timeout | 20µs typ - fast response to transient faults; no minimum delay required for D0-suffix parts. |
| Operating Temp | -40°C to +125°C - qualified for under-hood automotive, industrial, and telecom power applications. |
| Output Type | Active-low open-drain RESET - allows wired-OR configuration and level-shifting across 1.8V–5V domains. |
| VCC Range | 1.0V to 6.0V - RESET remains asserted correctly even during brownout down to 1.0V supply. |
Pinout & Package
MAX6756UKRD0+T is housed in a 5-pin SOT23 package (package code U5+1A, outline 21-0057), with exposed pad not present. Pin functions are validated per Maxim Integrated datasheet Rev 12 (2022).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VCC | Power Input & Monitored Rail | Supplies device and serves as primary voltage under surveillance; requires RC filter (100Ω + 0.1µF) per datasheet Figure 9. |
| 2 - GND | Reference Ground | System ground return for internal reference and comparator circuitry; must be low-impedance. |
| 3 - MR | Active-Low Manual Reset | Drives RESET low when pulled <0.23×VCC; internally pulled up to VCC via 26kΩ resistor. |
| 4 - RESET | Open-Drain Output | Asserts low during UV/OV fault or MR activation; requires external pull-up to host logic rail. |
| 5 - SET | Window Select Input | Bias at VCC/2 (±15%) sets UV/OV thresholds; floating or incorrect bias invalidates window accuracy. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-Trimmed 3.0V Threshold | Eliminates need for external resistive divider; reduces BOM count and layout area in 3.0V rail monitoring. |
| ±15% Adjustable Window | Enables tolerance matching to system-level supply variation without recalibration or component change. |
| 20µs Fast Propagation Delay | Supports real-time fault response in high-speed digital systems where >100ms timeouts are unacceptable. |
| 10µA Ultra-Low ICC | Permits continuous monitoring in energy-harvesting or backup-battery applications with multi-year runtime. |
| Open-Drain RESET with 1.0mA Sink | Directly drives standard microcontroller reset pins or enables multi-device reset bus sharing. |
Applications
| Telecom Power Supervision | Data Storage PSU Monitoring |
|---|---|
Use Scenario: Monitoring 3.0V auxiliary bias rail in 48V-powered telecom line cards subject to load transients and hot-swap events. IC Role / Device Role / Timing Role: Single-point window detector asserting open-drain RESET to halt FPGA configuration if rail deviates beyond ±15%. Use Value: Prevents corrupted firmware loads by triggering immediate system reset within 20µs of fault detection. | Use Scenario: Supervising 3.0V VCC in SAS/SATA SSD controller power domain during write-cache flush sequences. IC Role / Device Role / Timing Role: Fault-detection element ensuring stable supply before committing NAND writes; RESET held active until rail stabilizes. Use Value: Guarantees data integrity by blocking critical storage operations during undervoltage conditions. |
| Automotive Body Control Module | Industrial PLC I/O Power Rail |
Use Scenario: Monitoring 3.0V microcontroller core supply in BCMs operating across -40°C to +125°C ambient. IC Role / Device Role / Timing Role: AEC-Q100-compliant supervisor providing fail-safe reset signaling to MCU during cold-crank or load-dump events. Use Value: Maintains functional safety compliance (ISO 26262 ASIL-B support) via guaranteed operation over full automotive temperature range. | Use Scenario: Supervising isolated 3.0V logic supply feeding analog-to-digital converter front-end in modular PLC backplane. IC Role / Device Role / Timing Role: Precision window monitor detecting slow droop or overvoltage caused by aging DC-DC converters or ESD stress. Use Value: Enables predictive maintenance alerts by logging repeated RESET assertions before catastrophic failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar window voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV809E30DBZR | Fixed 3.0V UV detector only (no OV function); 350ms reset timeout; SOT23-3 package. | Lacks overvoltage detection and window functionality; suitable only for undervoltage-only use cases. | Select only if system requires UV-only reset and can tolerate longer timeout. |
| ADM6315-30ARTZ-RL | 3.0V UV detector with 200ms timeout; push-pull output; no SET-adjustable window or OV detection. | No overvoltage monitoring or window hysteresis tuning; higher ICC (25µA) and limited temp range (-40°C to +85°C). | Choose when open-drain output is unnecessary and extended temperature operation is not required. |
Compared with TLV809E30DBZR and ADM6315-30ARTZ-RL, the MAX6756UKRD0+T uniquely delivers combined UV/OV window detection with ±15% adjustability, 20µs speed, and full automotive temperature support - making it the only option for safety-critical dual-threshold supervision in compact SOT23-5 layouts.
Availability
MAX6756UKRD0+T is available at Aetrix Electronics and suitable for telecommunications infrastructure, data storage power supplies, and automotive body control modules requiring stable component supply across extended temperature and long product lifecycles.
Supply support for MAX6756UKRD0+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, Inc. is a global semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies.
The MAX6756UKRD0+T belongs to the MAX6754–MAX6764 family of low-power window detectors, designed specifically for robust, zero-calibration power-rail supervision in automotive, industrial, and communications equipment.
FAQ
What is the exact undervoltage and overvoltage threshold for MAX6756UKRD0+T?
The MAX6756UKRD0+T has a factory-trimmed nominal VCC threshold of 3.0V with ±15% window selected by the 'R' suffix. At +25°C, this yields an undervoltage threshold (UVTH) of 2.55V (falling) and overvoltage threshold (OVTH) of 3.45V (rising), as specified in the Electrical Characteristics table for R-suffix parts under TA = -40°C to +125°C conditions.
Does MAX6756UKRD0+T support operation below 1.8V supply?
Yes, the MAX6756UKRD0+T operates with VCC as low as 1.0V. Its RESET output remains asserted in the correct logic state down to 1.0V, and internal comparators function reliably across the full 1.0V–6.0V range - enabling brownout detection in ultra-low-voltage systems where other supervisors fail.
How is the ±15% window configured on MAX6756UKRD0+T?
The ±15% window on MAX6756UKRD0+T is configured by biasing the SET pin at VCC/2 using a resistive divider. Per datasheet Figure 5 and Pin Description, SET = VCC/2 selects ±15%; connecting SET to GND or VCC would instead select ±5% or ±10%, invalidating the intended R-suffix specification.
Can MAX6756UKRD0+T be used in AEC-Q100 qualified automotive designs?
Yes - the MAX6756UKRD0+T is manufactured in AEC-Q100 qualified processes (as noted in the Benefits and Features section for /V parts, and confirmed by package marking and qualification documentation). Its -40°C to +125°C operation, 10μA supply current, and robust transient immunity meet requirements for body electronics and powertrain ancillary monitoring.
What is the recommended input filtering for MAX6756UKRD0+T VCC pin?
Analog Devices specifies an RC filter on the VCC pin of MAX6756UKRD0+T for extreme transition immunity: a 100Ω series resistor followed by a 0.1µF bypass capacitor to GND (Figure 9). This prevents false triggering during fast-rising/falling supply edges, especially critical in DC-DC converter feedback paths and automotive cold-crank scenarios.
MAX6756UKRD0+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:
- 3V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 20µs Typical
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6756UKRD0+T FAQ
1.How can I place an order for MAX6756UKRD0+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6756UKRD0+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 MAX6756UKRD0+T reliable?
The price and inventory of MAX6756UKRD0+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6756UKRD0+T is usually 5 days.
3.What payment methods are accepted for MAX6756UKRD0+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6756UKRD0+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6756UKRD0+T?
MAX6756UKRD0+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6756UKRD0+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 MAX6756UKRD0+T?
For technical support, including MAX6756UKRD0+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6756UKRD0+T requirements.
6.How does Aetrix verify that MAX6756UKRD0+T is sourced from the original manufacturer or authorized distributors?
All MAX6756UKRD0+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 MAX6756UKRD0+T meets industry standards.
7.What is the process for return or replacement of MAX6756UKRD0+T?
All MAX6756UKRD0+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6756UKRD0+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 MAX6756UKRD0+T part is unused and in its original packaging.
Return procedure for MAX6756UKRD0+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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