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Analog Devices Inc./Maxim Integrated MAX6754UKZD3+
- Part No.:
- MAX6754UKZD3+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6754UKZD3+.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,526
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Product details
Overview
The MAX6754UKZD3+ from Maxim Integrated is a low-power, single-supply window voltage detector that monitors 2.5V system supplies for undervoltage (UV) and overvoltage (OV) conditions with ±5% factory-trimmed thresholds, 100ms minimum reset timeout, and active-low push-pull RESET output. It features manual reset input (MR), SET pin for window selection, operates from 1.0V to 6.0V supply, draws only 13µA typical current, and is rated for -40°C to +125°C operation in automotive and industrial power monitoring applications.
For engineers reviewing the MAX6754UKZD3+ datasheet, MAX6754UKZD3+ pinout, MAX6754UKZD3+ application, or MAX6754UKZD3+ equivalent, key selection considerations include its fixed 2.5V nominal detection point, ±5% window (Z suffix), D3 timeout option (100ms min), SOT23-5 package, push-pull RESET output, and compatibility with microprocessor supervisory circuits requiring robust reset assertion during rail faults.
Technical Context
The MAX6754UKZD3+ implements a precision bandgap reference and comparator-based window detection architecture with internal voltage dividers set for 2.5V nominal VCC monitoring. Its UV and OV thresholds are factory-trimmed to 2.250V–2.375V (falling) and 2.625V–2.750V (rising), respectively, with 0.7% hysteresis. The device asserts RESET when VCC falls below UVTH or rises above OVTH, with deassertion delayed by the D3 timeout period (100–320ms).
It integrates a 26kΩ internal MR pullup, supports SET pin biasing at GND/VCC/VCC/2 for ±5%/±10%/±15% windows, and guarantees valid outputs down to VCC = 1.0V. Propagation delays are 20µs typ for UV/OV assertion and 300ns for MR-induced reset, with transient immunity up to 300ns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal VCC Threshold | 2.5V - Factory-trimmed for monitoring standard 2.5V power rails |
| Window Tolerance | ±5% - Set by Z suffix; UVTH = 2.250–2.375V, OVTH = 2.625–2.750V |
| Reset Timeout | 100ms min - D3 suffix ensures sustained reset hold during slow-rising VCC recovery |
| Supply Current | 13µA typ at 3.6V - Enables battery-backed or ultra-low-power system supervision |
| Operating Temp | -40°C to +125°C - Qualified for under-hood automotive and industrial environments |
| Output Type | Active-low push-pull RESET - Drives directly into µP reset pin without external pullup |
| VCC Range | 1.0V to 6.0V - Outputs remain asserted correctly even as VCC drops to 1.0V |
Pinout & Package
MAX6754UKZD3+ is housed in a 5-pin SOT23-5 package (3.0mm × 1.6mm × 1.1mm), RoHS-compliant and lead(Pb)-free (+ suffix). Pin 1 is VCC, Pin 2 is GND, Pin 3 is MR, Pin 4 is RESET, Pin 5 is SET.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VCC | Power Input & Monitored Voltage | Supplies device and serves as the 2.5V rail being supervised; requires 0.1µF bypass to GND |
| 2 - GND | Ground Reference | Common return for all internal circuitry and output drivers |
| 3 - MR | Active-Low Manual Reset Input | Asserts RESET when pulled low; internally pulled up to VCC via 26kΩ resistor |
| 4 - RESET | Active-Low Push-Pull Output | Drives µP reset pin directly; sinks 1.0mA at VCC ≥ 1.71V with VOL ≤ 0.3V |
| 5 - SET | Window Threshold Select | Connected to GND for ±5% window (Z suffix); no external components required |
Key Features
| Feature | Design Value |
|---|---|
| Factory-Trimmed 2.5V Window Detection | Eliminates external resistor networks and calibration for 2.5V rail supervision |
| 100ms Minimum Reset Timeout (D3) | Ensures reliable processor reset hold during brown-out recovery in noisy power systems |
| 13µA Typical Supply Current | Extends battery life in always-on monitoring circuits and portable equipment |
| Valid Operation Down to VCC = 1.0V | Maintains correct RESET state during deep undervoltage events before complete power loss |
| 20µs Propagation Delay | Enables fast fault response for critical power sequencing and safety-critical systems |
Applications
| Microprocessor Supervision | DC-DC Converter Monitoring |
|---|---|
Use Scenario: Monitoring core voltage of an ARM Cortex-M7 microcontroller powered from a 2.5V LDO. IC Role / Device Role / Timing Role: Asserts active-low RESET to halt CPU execution during UV/OV faults on the 2.5V rail, holding reset for ≥100ms after recovery. Use Value: Prevents corrupted firmware execution and memory writes during unstable power conditions. | Use Scenario: Supervising output of a 2.5V buck converter supplying FPGA I/O banks. IC Role / Device Role / Timing Role: Detects output collapse or overshoot beyond ±5% window and triggers system shutdown via RESET signal. Use Value: Protects FPGA I/O cells from damage due to out-of-spec supply voltage. |
| Automotive Body Control Module | Industrial PLC Power Management |
Use Scenario: Monitoring 2.5V sensor interface rail in an automotive BCM operating at 125°C ambient. IC Role / Device Role / Timing Role: Provides AEC-Q100-compliant supervision with guaranteed operation across full temperature range and MR override for diagnostics. Use Value: Meets ASIL-B functional safety requirements for non-safety-critical but reliability-sensitive subsystems. | Use Scenario: Ensuring stable 2.5V logic supply in a DIN-rail mounted PLC with wide-input DC-DC stage. IC Role / Device Role / Timing Role: Generates clean, glitch-free reset pulse with 100ms timeout to initialize FPGA-based control logic after cold start. Use Value: Eliminates need for RC-based reset generators subject to component drift and temperature variation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar window voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6755UKZD3+ | Active-high push-pull RESET output instead of active-low; identical thresholds, timing, and pinout | Requires inverted reset logic on host µP or level-shifting circuitry | Select when host processor expects active-high reset assertion |
| TLV809E25DBZR | Single undervoltage detector only (no overvoltage function); 2.5V threshold, open-drain output, 140ms timeout | Lacks OV detection capability; requires separate OV circuit or higher-level software mitigation | Choose only if overvoltage protection is not required and cost is primary constraint |
Compared with MAX6755UKZD3+, the MAX6754UKZD3+ provides native active-low reset polarity matching most µPs, while TLV809E25DBZR offers lower cost but omits critical overvoltage supervision-making MAX6754UKZD3+ the optimal choice for full window monitoring in safety-aware designs.
Availability
MAX6754UKZD3+ is available at Aetrix Electronics and suitable for microprocessor supervision, DC-DC converter monitoring, and automotive body control modules requiring stable component supply with guaranteed long-term availability and automotive-grade qualification.
Supply support for MAX6754UKZD3+ 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 industrial, automotive, communications, and computing markets.
The MAX6754UKZD3+ belongs to the MAX6754–MAX6764 family of low-power window detectors engineered specifically for robust, single-chip supervision of critical voltage rails in harsh environments.
FAQ
What is the exact undervoltage and overvoltage threshold range for MAX6754UKZD3+ at 25°C?
The MAX6754UKZD3+ has a nominal 2.5V detection point with ±5% window (Z suffix). At 25°C, its undervoltage threshold (UVTH) falls between 2.250V and 2.375V on falling VCC, and its overvoltage threshold (OVTH) rises between 2.625V and 2.750V. These values include initial accuracy and are guaranteed across -40°C to +125°C per the datasheet's electrical characteristics table.
Does MAX6754UKZD3+ require external components to set its 2.5V window detection?
No, MAX6754UKZD3+ does not require external resistors or capacitors to configure its 2.5V window. The Z suffix indicates factory-trimmed thresholds, and the SET pin is tied to GND to select the ±5% window-no adjustment circuitry is needed. Only a 0.1µF VCC bypass capacitor to GND is required for stable operation.
Can MAX6754UKZD3+ monitor voltages other than 2.5V?
No, MAX6754UKZD3+ is specifically configured for 2.5V nominal monitoring (Z suffix). It cannot be reconfigured for other voltages. For adjustable or alternate fixed thresholds (e.g., 3.3V, 1.8V), select other members of the MAX6754–MAX6764 family such as MAX6754UKTD3+ (3.3V) or MAX6754UKWD3+ (1.8V).
What is the function of the SET pin on MAX6754UKZD3+ and how should it be connected?
On MAX6754UKZD3+, the SET pin selects the window tolerance: connect SET to GND for ±5% (Z), to VCC for ±10% (T), or bias to VCC/2 for ±15% (R). Since MAX6754UKZD3+ is the Z-version, SET must be connected to GND. Leaving it floating or misconnected invalidates the specified ±5% window accuracy.
Is MAX6754UKZD3+ qualified for automotive applications?
MAX6754UKZD3+ carries the "+" suffix indicating lead(Pb)-free RoHS compliance, but it is not explicitly marked "/V" in its part number. Per Maxim's ordering information, only /V-suffixed variants are AEC-Q100 qualified. Therefore, MAX6754UKZD3+ is suitable for industrial and commercial applications; for automotive use, specify MAX6754UKZD3/V+ or confirm qualification status with Analog Devices.
MAX6754UKZD3+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.5V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6754UKZD3+ FAQ
1.How can I place an order for MAX6754UKZD3+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6754UKZD3+ 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 MAX6754UKZD3+ reliable?
The price and inventory of MAX6754UKZD3+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6754UKZD3+ is usually 5 days.
3.What payment methods are accepted for MAX6754UKZD3+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6754UKZD3+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6754UKZD3+?
MAX6754UKZD3+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6754UKZD3+ 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 MAX6754UKZD3+?
For technical support, including MAX6754UKZD3+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6754UKZD3+ requirements.
6.How does Aetrix verify that MAX6754UKZD3+ is sourced from the original manufacturer or authorized distributors?
All MAX6754UKZD3+ 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 MAX6754UKZD3+ meets industry standards.
7.What is the process for return or replacement of MAX6754UKZD3+?
All MAX6754UKZD3+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6754UKZD3+, 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 MAX6754UKZD3+ part is unused and in its original packaging.
Return procedure for MAX6754UKZD3+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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