My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6755UKRD0+T
- Part No.:
- MAX6755UKRD0+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6755UKRD0+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,788
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6755UKRD0+T from Analog Devices is a low-power single-voltage window detector IC that monitors undervoltage and overvoltage conditions on 3.0V system supplies with ±15% factory-trimmed thresholds (UVTH = 2.550V–2.700V, OVTH = 3.300V–3.450V), features a 20μs typical reset timeout, active-high push-pull RESET output, manual reset input (MR), and operates from -40°C to +125°C in SOT23-5 package. It is used in telecom power supervision and DC-DC converter module fault detection.
For engineers reviewing the MAX6755UKRD0+T datasheet, MAX6755UKRD0+T pinout, MAX6755UKRD0+T application, or MAX6755UKRD0+T equivalent, key selection criteria include its 3.0V nominal monitoring voltage, ±15% window select via SET pin biasing, 20μs propagation delay, push-pull RESET logic polarity, and compatibility with high-reliability industrial and automotive power-rail monitoring systems requiring AEC-Q100-grade performance.
Technical Context
The MAX6755UKRD0+T implements a fixed 3.0V nominal voltage monitor with internally trimmed resistive divider and precision bandgap reference, enabling accurate UV/OV detection across temperature. Its SET pin is biased at VCC/2 to configure ±15% window hysteresis (VHYST = 0.7%), and it uses a single 20μs timeout period (D0 suffix) without latching.
This device integrates a manual reset input (MR) with internal 26kΩ pullup and 4μs minimum pulse width, and asserts RESET high when VCC falls below UVTH or rises above OVTH. Output logic is push-pull with VOH ≥ 0.8×VCC and VOL ≤ 0.3V for sink currents up to 4mA, ensuring robust interface with microcontrollers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Supply Voltage | 3.0V - Factory-trimmed internal divider sets UV/OV thresholds centered on this rail. |
| Window Tolerance | ±15% - Achieved by biasing SET pin at VCC/2; enables 2.55V–2.70V UV and 3.30V–3.45V OV detection range. |
| Timeout Period | 20μs typ - Fast reset assertion/deassertion suitable for real-time power-rail fault response. |
| Supply Current | 13–30μA @ 3.6V - Ultra-low ICC supports battery-backed or energy-constrained systems. |
| Operating Temp | -40°C to +125°C - Fully specified for under-hood automotive and industrial embedded environments. |
| Output Type | Active-high push-pull RESET - Eliminates need for external pullup; drives MCU reset pin directly. |
| Reset Propagation Delay | 20μs - Guaranteed timing from VCC crossing threshold to RESET assertion. |
Pinout & Package
MAX6755UKRD0+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 MAX6755 functional diagram and pin description table.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VCC | Power Input & Monitored Rail | Powers device and serves as the 3.0V supply being monitored; requires 0.1μF bypass capacitor to GND. |
| 2 - GND | Ground Reference | System ground return for all internal comparators, reference, and output drivers. |
| 3 - MR | Active-Low Manual Reset Input | Drives RESET high when pulled low; internal 26kΩ pullup ensures default deassertion. |
| 4 - RESET | Active-High Push-Pull Output | Asserts high during UV/OV fault; sinks up to 4mA and sources ≥0.8×VCC at 0.8mA. |
| 5 - SET | Window Threshold Select | Bias at VCC/2 to enable ±15% window; open-circuit or incorrect bias invalidates threshold accuracy. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 3.0V window detector | Eliminates external resistor networks; reduces BOM count and layout area for 3.0V rail supervision. |
| ±15% adjustable window via SET pin | Enables precise margining of 3.0V supply tolerance without changing part number or PCB. |
| 20μs fast timeout and propagation delay | Supports rapid fault detection in high-speed digital systems where delayed resets cause data corruption. |
| Active-high push-pull RESET output | Directly interfaces with standard MCU reset inputs without external pullup resistors or level-shifting. |
| Manual reset input with internal pullup | Simplifies system-level reset button design; eliminates need for external pullup resistor. |
Applications
| Telecom Power Supervision | DC-DC Converter Module Monitoring |
|---|---|
Use Scenario: Monitoring 3.0V bias rails in optical line terminals and base station RF front-end modules. IC Role / Device Role / Timing Role: Window detector asserting RESET high upon 3.0V rail deviation beyond ±15%, triggering system shutdown before LDO dropout. Use Value: Prevents corrupted frame transmission by halting processor operation within 20μs of rail excursion. | Use Scenario: Fault detection in isolated 3.0V auxiliary supplies powering gate drivers and sensing circuitry. IC Role / Device Role / Timing Role: Single-point UV/OV monitor with push-pull RESET output driving enable/disable logic of downstream converters. Use Value: Enables autonomous converter disable without host MCU intervention, improving system safety integrity. |
| Industrial PLC I/O Module Power | Automotive Body Control Module (BCM) |
Use Scenario: Supervising 3.0V logic supply in programmable logic controller digital I/O cards operating at 125°C ambient. IC Role / Device Role / Timing Role: High-temp qualified window detector providing fail-safe reset signal to FPGA configuration controller. Use Value: Guarantees correct FPGA initialization state even after thermal cycling-induced rail sag. | Use Scenario: Monitoring 3.0V microcontroller core supply in BCMs subjected to load-dump transients. IC Role / Device Role / Timing Role: Immune-to-transients window detector asserting RESET during >300ns overvoltage spikes on 3.0V rail. Use Value: Prevents MCU lockup during ISO 7637-2 pulse 5a events without requiring additional filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar window detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6755UKTD0+T | ±10% window (SET = VCC) vs. ±15% (SET = VCC/2); identical pinout, timing, and package. | Used where tighter 3.0V tolerance (±10%) is required, e.g., low-noise analog subsystems. | Select MAX6755UKTD0+T if system margin allows ±10% window; otherwise retain MAX6755UKRD0+T for wider tolerance. |
| TLV809K30DBZR | Single undervoltage detector only (no overvoltage), 3.0V threshold, open-drain output, no SET pin or manual reset. | Limited to UV-only supervision; requires external OV circuit or separate OV IC for full window function. | Choose TLV809K30DBZR only for cost-sensitive UV-only use cases where OV detection is handled elsewhere. |
Compared with MAX6755UKTD0+T and TLV809K30DBZR, the MAX6755UKRD0+T uniquely delivers ±15% window coverage with active-high push-pull RESET and MR support in one SOT23-5 device-enabling complete 3.0V rail supervision without supplemental components or layout changes.
Availability
MAX6755UKRD0+T is available at Aetrix Electronics and suitable for telecom power supervision, DC-DC converter module monitoring, and industrial PLC I/O module power requiring stable component supply across extended temperature ranges.
Supply support for MAX6755UKRD0+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 MAX6755UKRD0+T belongs to the MAX6754–MAX6764 family of low-power window detectors, designed specifically for reliable, single-chip supervision of critical system power rails in harsh environments.
FAQ
What is the exact undervoltage and overvoltage threshold range for MAX6755UKRD0+T at 25°C?
The MAX6755UKRD0+T has a nominal 3.0V supply with ±15% window set by biasing the SET pin at VCC/2. At TA = +25°C, its undervoltage threshold (UVTH) is 2.550V to 2.700V (falling VCC), and overvoltage threshold (OVTH) is 3.300V to 3.450V (rising VCC). These values are factory-trimmed and guaranteed over -40°C to +125°C.
How does the SET pin configure the window tolerance on MAX6755UKRD0+T?
The SET pin on MAX6755UKRD0+T selects window tolerance: connect to GND for ±5%, to VCC for ±10%, or bias at VCC/2 (e.g., using resistor divider) for ±15%. For MAX6755UKRD0+T, the 'R' suffix indicates ±15% configuration, requiring precise VCC/2 bias to maintain threshold accuracy.
Does MAX6755UKRD0+T support operation down to 1.0V VCC?
Yes, MAX6755UKRD0+T guarantees correct RESET logic state for VCC down to 1.0V, though voltage monitoring functionality requires VCC ≥ 1.4V. Below 1.4V, outputs remain asserted in their last valid state, enabling safe brownout handling in ultra-low-power wake-up sequences.
What is the reset timeout behavior of MAX6755UKRD0+T during a supply fault?
MAX6755UKRD0+T uses a D0 timeout option with 20μs typical propagation delay. When VCC crosses UVTH or OVTH, RESET asserts within 20μs and remains asserted until VCC returns within the window and stays stable for the same 20μs period-ensuring glitch-free recovery without external timing components.
Is MAX6755UKRD0+T AEC-Q100 qualified?
No, MAX6755UKRD0+T is not AEC-Q100 qualified. Only /V-suffixed variants (e.g., MAX6755UKRD0/V+) in the MAX6754–MAX6764 family meet AEC-Q100 Grade 1 (-40°C to +125°C) requirements. MAX6755UKRD0+T is rated for industrial temperature range and is not certified for automotive use.
MAX6755UKRD0+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:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 3V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 20µs Typical
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6755UKRD0+T FAQ
1.How can I place an order for MAX6755UKRD0+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6755UKRD0+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 MAX6755UKRD0+T reliable?
The price and inventory of MAX6755UKRD0+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6755UKRD0+T is usually 5 days.
3.What payment methods are accepted for MAX6755UKRD0+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6755UKRD0+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6755UKRD0+T?
MAX6755UKRD0+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6755UKRD0+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 MAX6755UKRD0+T?
For technical support, including MAX6755UKRD0+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6755UKRD0+T requirements.
6.How does Aetrix verify that MAX6755UKRD0+T is sourced from the original manufacturer or authorized distributors?
All MAX6755UKRD0+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 MAX6755UKRD0+T meets industry standards.
7.What is the process for return or replacement of MAX6755UKRD0+T?
All MAX6755UKRD0+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6755UKRD0+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 MAX6755UKRD0+T part is unused and in its original packaging.
Return procedure for MAX6755UKRD0+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6755UKRD0+T Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
