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Analog Devices Inc./Maxim Integrated MAX6754UKLD0+
- Part No.:
- MAX6754UKLD0+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6754UKLD0+.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:760
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Product details
Overview
The MAX6754UKLD0+ from Maxim Integrated is a low-power, single-supply window voltage detector that monitors 5V system rails for undervoltage (UV) and overvoltage (OV) conditions with ±5% factory-trimmed thresholds, 20μs typical propagation delay, push-pull active-low RESET output, and manual reset input - used in telecom power supervision and microprocessor reset management.
For engineers reviewing the MAX6754UKLD0+ datasheet, MAX6754UKLD0+ pinout, MAX6754UKLD0+ application, or MAX6754UKLD0+ equivalent, this device delivers precise 5V rail monitoring with minimal quiescent current (13µA), wide temperature operation (–40°C to +125°C), and SOT23-5 packaging suitable for space-constrained embedded power systems.
Technical Context
The MAX6754UKLD0+ implements a fixed-threshold window detection architecture using an internal bandgap reference and comparator circuitry to assert RESET when VCC falls below 4.500V (UVTH, falling) or rises above 5.500V (OVTH, rising) at 25°C, with ±5% window set via grounded SET pin. It features no timeout on OV assertion but uses a 20μs propagation delay for both UV and OV transitions.
Its functional block includes a manual reset input (MR) with 26kΩ internal pullup, push-pull RESET output referenced to VCC, and immunity to transients <300ns - enabling robust operation in noisy DC-DC converter environments without external filtering beyond standard 0.1µF bypassing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | VCC = 1.0V to 6.0V; outputs remain valid down to 1.0V, enabling brownout-safe reset assertion during deep supply sag. |
| Undervoltage Threshold (UVTH) | 4.500V (min), 4.625V (typ), 4.750V (max) at –40°C to +125°C; falling-edge detection triggers RESET assertion. |
| Overvoltage Threshold (OVTH) | 5.250V (min), 5.375V (typ), 5.500V (max) at –40°C to +125°C; rising-edge detection triggers immediate RESET assertion. |
| Reset Timeout / Propagation Delay | 20μs typical propagation delay (tRP); no timeout period - RESET deasserts immediately upon return to valid window. |
| Quiescent Supply Current | 13µA typical 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 industrial and automotive under-hood applications requiring extended thermal stability. |
| Output Type | Active-low push-pull RESET; drives low to 0.3V at 1.0mA sink (VCC ≥ 1.71V), eliminating need for external pullup resistors. |
Pinout & Package
MAX6754UKLD0+ is housed in a 5-pin SOT23-5 package (2.9mm × 1.6mm × 1.1mm), RoHS-compliant and lead(Pb)-free (+ suffix), with GND-connected exposed pad not present in this variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VCC | Power Input & Monitored Rail | Supplies device and serves as the 5V system rail being monitored; requires 0.1µF bypass capacitor to GND. |
| 2 - GND | Ground Reference | Primary ground connection for internal reference and output stage; must be low-impedance for accurate threshold tracking. |
| 3 - MR | Active-Low Manual Reset | Drives RESET low when asserted; internally pulled up to VCC via 26kΩ resistor; minimum pulse width = 4µs. |
| 4 - RESET | Active-Low Push-Pull Output | Asserts low during UV/OV fault or MR activation; deasserts immediately upon return to valid window; no external pullup needed. |
| 5 - SET | Window Select Input | Connected to GND to configure ±5% window (4.5V–5.5V); open or floating not allowed - must be actively biased. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-Trimmed 5V Window Detection | Eliminates external resistor networks and calibration; guarantees UV/OV thresholds within ±5% across –40°C to +125°C. |
| 20μs Fast Propagation Delay | Enables real-time response to supply faults - critical for protecting high-speed microprocessors and FPGAs from transient overvoltage events. |
| Push-Pull RESET Output | Reduces BOM count by removing external pullup resistor; supports direct interface to µP NMI or reset inputs without level-shifting. |
| Manual Reset Input with Internal Pullup | Simplifies board layout and reduces component count; eliminates need for external MR pullup while ensuring defined startup state. |
| Ultra-Low 13µA Quiescent Current | Extends battery life in always-on supervisory circuits; compatible with energy harvesting and backup power designs. |
Applications
| Telecom Power Supervision | Server CPU Core Monitoring |
|---|---|
Use Scenario: Monitoring +5V bias rail in optical line terminal (OLT) power modules where transient surges or brownouts risk SERDES lock loss. IC Role / Device Role / Timing Role: Window detector asserting RESET to halt data transmission and trigger graceful shutdown before rail collapse. Use Value: Prevents bit errors and hardware damage by responding within 20μs to UV/OV excursions outside 4.5V–5.5V window. | Use Scenario: Supervising 5V auxiliary rail powering server motherboard CPLD and clock buffers during cold boot and hot-swap events. IC Role / Device Role / Timing Role: Single-point reset generator synchronized to rail stability, with manual reset support for field diagnostics. Use Value: Ensures deterministic initialization of timing-critical logic blocks by guaranteeing RESET remains asserted until VCC stabilizes within spec. |
| Industrial PLC I/O Power Monitoring | Automotive ADAS Domain Controller Supply Check |
Use Scenario: Verifying integrity of isolated 5V supply feeding analog sensor front-ends and CAN transceivers in programmable logic controllers. IC Role / Device Role / Timing Role: Fault-detection interface between power stage and safety MCU, providing fail-safe reset signaling. Use Value: Meets SIL-2 requirements via guaranteed –40°C to +125°C operation and <300ns transient immunity without added filtering. | Use Scenario: Validating 5V domain controller auxiliary rail prior to radar processor wake-up in autonomous driving ECUs. IC Role / Device Role / Timing Role: Pre-boot health check element integrated into ASIL-B safety chain, asserting reset if rail deviates pre-startup. Use Value: Supports ISO 26262 compliance through AEC-Q100 qualification (when ordered as /V variant) and tight threshold tolerances. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar window voltage detection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV809E50DBZR | Single undervoltage detector only (no overvoltage function); 5.0V UV threshold; open-drain output; no SET pin or manual reset. | Limited to brownout-only supervision; requires external OV circuitry or second IC for full window coverage. | Select when only UV detection is required and board space allows separate OV solution. |
| ADM6315-5ARTZ-RL7 | 5V supervisor with UV reset only; 200ms reset timeout; no OV detection; no manual reset; SOT23-5 package. | Designed for simple microcontroller reset on power-up/brownout; lacks window functionality and real-time OV response. | Choose for cost-sensitive, non-critical applications where OV protection is handled elsewhere. |
Compared with TLV809E50DBZR and ADM6315-5ARTZ-RL7, the MAX6754UKLD0+ uniquely integrates both UV and OV detection in one SOT23-5 package with 20μs response, manual reset, and ±5% window accuracy - making it the only option for compact, full-window supervision of 5V rails.
Availability
MAX6754UKLD0+ is available at Aetrix Electronics and suitable for telecom power modules, server motherboard designs, and industrial PLCs requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for MAX6754UKLD0+ 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) is a semiconductor company specializing in precision analog, mixed-signal, and power management ICs for industrial, communications, and computing markets.
The MAX6754UKLD0+ belongs to the MAX6754–MAX6764 family of low-power window detectors, designed specifically for reliable, single-chip monitoring of critical system supply rails in harsh thermal and electrical environments.
FAQ
What is the exact undervoltage and overvoltage threshold range for MAX6754UKLD0+?
The MAX6754UKLD0+ has a factory-trimmed undervoltage threshold (UVTH) of 4.500V (min) to 4.750V (max) and overvoltage threshold (OVTH) of 5.250V (min) to 5.500V (max), specified over –40°C to +125°C with ±5% window set by grounding the SET pin. These values correspond to the "L" (5V) and "D0" (20μs delay) suffixes in the part number.
Does MAX6754UKLD0+ support dual-voltage monitoring?
No, MAX6754UKLD0+ is a single-voltage window detector monitoring only VCC (the 5V rail). Dual-voltage variants like MAX6760/MAX6761/MAX6762 include VCC2 pins and separate monitoring paths - MAX6754UKLD0+ has no VCC2, OVLATCH, or dual-output capability.
Can MAX6754UKLD0+ operate with supply voltages below 5V?
Yes, MAX6754UKLD0+ operates with VCC from 1.0V to 6.0V, and its RESET output remains valid down to VCC = 1.0V. However, the 5V nominal thresholds (4.5V–5.5V) are only guaranteed when VCC ≥ 1.4V per datasheet Note 2; below that, outputs hold last state but threshold accuracy is not maintained.
What is the function of the SET pin on MAX6754UKLD0+?
The SET pin on MAX6754UKLD0+ configures the window width: grounded for ±5% (4.5V–5.5V), tied to VCC for ±10%, or biased to VCC/2 for ±15%. For MAX6754UKLD0+, SET must be connected to GND to match the "L" (5V) and "D0" (20μs) configuration - leaving it floating violates design requirements.
Is MAX6754UKLD0+ pin-compatible with other MAX6754 variants?
Yes, all MAX6754 variants (e.g., MAX6754UKLD3+, MAX6754UKTD0+) share identical SOT23-5 pinout and footprint. Differences lie only in threshold voltage (L/T/Z/W suffix), window width (SET bias), and timeout (D0/D3), not physical connectivity - enabling drop-in replacement for design reuse.
MAX6754UKLD0+ 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:
- 5V
- Output:
- Push-Pull, Totem Pole
- 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
MAX6754UKLD0+ FAQ
1.How can I place an order for MAX6754UKLD0+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6754UKLD0+ 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 MAX6754UKLD0+ reliable?
The price and inventory of MAX6754UKLD0+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6754UKLD0+ is usually 5 days.
3.What payment methods are accepted for MAX6754UKLD0+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6754UKLD0+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6754UKLD0+?
MAX6754UKLD0+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6754UKLD0+ 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 MAX6754UKLD0+?
For technical support, including MAX6754UKLD0+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6754UKLD0+ requirements.
6.How does Aetrix verify that MAX6754UKLD0+ is sourced from the original manufacturer or authorized distributors?
All MAX6754UKLD0+ 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 MAX6754UKLD0+ meets industry standards.
7.What is the process for return or replacement of MAX6754UKLD0+?
All MAX6754UKLD0+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6754UKLD0+, 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 MAX6754UKLD0+ part is unused and in its original packaging.
Return procedure for MAX6754UKLD0+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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