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Analog Devices Inc./Maxim Integrated MAX6755UKZD3+T
- Part No.:
- MAX6755UKZD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6755UKZD3+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,313
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Product details
Overview
MAX6755UKZD3+T from Analog Devices is a low-power, single-voltage window detector monitoring 2.5V system supplies with ±15% threshold window (UVTH = 2.125V, OVTH = 2.875V), 100ms minimum reset timeout, active-high push-pull RESET output, and manual reset input - used in telecom power supervision and microprocessor reset circuits.
For engineers reviewing the MAX6755UKZD3+T datasheet, MAX6755UKZD3+T pinout, MAX6755UKZD3+T application, or MAX6755UKZD3+T equivalent, key selection criteria include factory-trimmed 2.5V monitoring accuracy, ±15% adjustable window via SET pin, 10μA supply current at 3.6V, -40°C to +125°C operation, and SOT23-5 package compatibility with space-constrained embedded systems.
Technical Context
The MAX6755UKZD3+T implements a precision bandgap reference with internal resistor-divider network to set nominal 2.5V thresholds, combined with comparator-based UV/OV detection logic and a 100ms timeout timer for reset assertion. Its SET pin biases at VCC/2 to configure ±15% window hysteresis (VHYST = 0.7%).
It features an active-high push-pull RESET output that asserts when VCC falls below UVTH or rises above OVTH, deasserts after 100ms timeout once VCC returns within window, and responds to MR low with 300ns propagation delay. Output voltage levels are specified down to VCC = 1.0V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Monitored Voltage | 2.5V nominal (Z suffix), ±15% window (SET = VCC/2) |
| UV Threshold | 2.125V (min) to 2.250V (max) at -40°C to +125°C |
| OV Threshold | 2.875V (min) to 3.000V (max) at -40°C to +125°C |
| Reset Timeout | 100ms minimum (D3 suffix), ensures stable MCU boot after brownout recovery |
| Supply Current | 13µA typical at 3.6V, enables battery-backed monitoring |
| Operating Temp | -40°C to +125°C, qualified for automotive under-hood and industrial control environments |
| Output Type | Active-high push-pull RESET, drives directly into µP reset pin without pull-up |
Pinout & Package
MAX6755UKZD3+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 Supply | Powers device and serves as monitored 2.5V rail; requires 0.1µF bypass capacitor to GND |
| 2 - GND | Ground Reference | Common return for all internal circuitry and output drivers |
| 3 - MR | Manual Reset Input | Active-low input; internally pulled up to VCC via 26kΩ; asserts RESET for ≥4µs pulse |
| 4 - RESET | Reset Output | Active-high push-pull output; asserts high during UV/OV fault; deasserts after 100ms timeout |
| 5 - SET | Window Select Input | Bias at VCC/2 to select ±15% window; no external components required |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 2.5V monitoring | Eliminates external resistor networks; reduces BOM count and layout area for fixed-rail systems |
| ±15% window via SET pin | Enables single-footprint support for varying tolerance requirements without PCB change |
| 100ms minimum reset timeout | Guarantees sufficient hold time for microprocessor initialization after power recovery |
| 10μA supply current | Extends battery life in always-on supervisory applications such as smart meters and IoT edge nodes |
| Push-pull active-high RESET | Drives µP reset pin directly; avoids need for external pull-up resistor and associated leakage path |
Applications
| Telecom Power Supervision | Industrial PLC I/O Module |
|---|---|
Use Scenario: Monitoring 2.5V auxiliary supply in 48V-powered telecom line cards to prevent data corruption during voltage sag. IC Role / Device Role / Timing Role: Window detector asserting active-high RESET to halt DSP operation until rail stabilizes. Use Value: Prevents firmware crash by enforcing 100ms minimum reset hold time after brownout recovery. | Use Scenario: Supervising 2.5V FPGA configuration voltage in modular PLC backplanes exposed to EMI and thermal cycling. IC Role / Device Role / Timing Role: Fault-detecting supervisor with manual reset override for field service recovery. Use Value: Factory-trimmed 2.5V thresholds ensure ±1.5% accuracy over -40°C to +125°C, eliminating calibration. |
| Automotive Body Control Module | Server Management Controller |
Use Scenario: Monitoring 2.5V sensor interface rail in BCMs where transient immunity prevents false resets. IC Role / Device Role / Timing Role: Immune-to-transients window detector with 300ns MR propagation delay for fast diagnostics. Use Value: 300ns MR response enables deterministic reset sequencing during CAN bus wake-up events. | Use Scenario: Ensuring reliable BMC boot by validating 2.5V management controller supply before firmware execution. IC Role / Device Role / Timing Role: Single-supply window monitor with active-high RESET tied to BMC nRST pin. Use Value: Push-pull output eliminates external pull-up, reducing standby current in always-on BMC subsystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6755UKZD0+T | 20µs propagation delay instead of 100ms timeout; no reset hold time | Suitable for fast-response fault signaling, not for MCU reset timing | Select D0 for transient event logging; D3 for guaranteed boot stability |
| TLV809E25DBZR | Fixed 2.5V undervoltage-only detector (no overvoltage), SOT23-3, no SET or MR pins | Limited to UV-only monitoring; lacks window functionality and manual reset | Use only if overvoltage protection and reset timeout are not required |
Compared with MAX6755UKZD0+T and TLV809E25DBZR, the MAX6755UKZD3+T uniquely delivers factory-trimmed 2.5V window detection with ±15% adjustability, 100ms reset timeout, and active-high push-pull output - enabling robust, single-component power supervision without external timing or level-shifting components.
Availability
MAX6755UKZD3+T is available at Aetrix Electronics and suitable for telecom power supervision, industrial PLC I/O modules, and automotive body control modules requiring stable component supply across extended temperature ranges.
Supply support for MAX6755UKZD3+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, headquartered in Wilmington, MA.
The MAX6754–MAX6764 family was designed specifically for low-power, high-accuracy voltage supervision in space- and energy-constrained embedded systems across automotive, industrial, and communications markets.
FAQ
What is the exact undervoltage and overvoltage threshold range for MAX6755UKZD3+T at full temperature?
The MAX6755UKZD3+T has a guaranteed undervoltage threshold (UVTH) of 2.125V to 2.250V and overvoltage threshold (OVTH) of 2.875V to 3.000V across -40°C to +125°C. These values correspond to the Z (2.5V nominal) and ±15% window (SET = VCC/2) configuration, with hysteresis of 0.7% of VCC. The MAX6755UKZD3+T meets these specs without external calibration.
Does MAX6755UKZD3+T require external components to set its 2.5V window?
No, the MAX6755UKZD3+T does not require external resistors to set its 2.5V window. It uses factory-trimmed internal dividers for nominal 2.5V detection (Z suffix), and the ±15% window is configured solely by biasing the SET pin at VCC/2. A 0.1µF bypass capacitor on VCC is the only recommended external component for stable operation.
How does the manual reset (MR) function interact with the 100ms timeout in MAX6755UKZD3+T?
In the MAX6755UKZD3+T, asserting MR low forces immediate RESET assertion regardless of VCC level, and RESET remains asserted for ≥4µs after MR release, followed by the full 100ms timeout period before deassertion - even if VCC recovers during that interval. This ensures deterministic reset hold time for microprocessor initialization, independent of supply recovery speed.
Can MAX6755UKZD3+T operate with VCC below 2.5V while still providing valid RESET output?
Yes, the MAX6755UKZD3+T guarantees correct RESET logic state for VCC down to 1.0V. Its internal reference and comparator circuitry remain functional, and the push-pull output maintains VOL ≤ 0.3V and VOH ≥ 0.8 × VCC across VCC = 1.0V to 6.0V. This allows reliable reset assertion during deep brownout conditions where VCC drops below nominal 2.5V.
What is the thermal performance of MAX6755UKZD3+T in a standard SOT23-5 PCB layout?
The MAX6755UKZD3+T in SOT23-5 (U5+1A) has θJA = 255.9°C/W on a multilayer board and θJC = 82°C/W. With 13µA supply current at 3.6V (47µW dissipation), junction temperature rise is negligible (<0.012°C) - enabling operation in thermally constrained enclosures without heatsinking. The device is rated for continuous operation up to +125°C ambient.
MAX6755UKZD3+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:
- 2.5V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6755UKZD3+T FAQ
1.How can I place an order for MAX6755UKZD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6755UKZD3+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 MAX6755UKZD3+T reliable?
The price and inventory of MAX6755UKZD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6755UKZD3+T is usually 5 days.
3.What payment methods are accepted for MAX6755UKZD3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6755UKZD3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6755UKZD3+T?
MAX6755UKZD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6755UKZD3+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 MAX6755UKZD3+T?
For technical support, including MAX6755UKZD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6755UKZD3+T requirements.
6.How does Aetrix verify that MAX6755UKZD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6755UKZD3+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 MAX6755UKZD3+T meets industry standards.
7.What is the process for return or replacement of MAX6755UKZD3+T?
All MAX6755UKZD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6755UKZD3+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 MAX6755UKZD3+T part is unused and in its original packaging.
Return procedure for MAX6755UKZD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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