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Analog Devices Inc./Maxim Integrated MAX6759UTRD3
- Part No.:
- MAX6759UTRD3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6759UTRD3.pdf
- Description:
- IC SUPERVISOR SGL VOLT WINDOW
- Quantity:
- Payment:
- Shipping:
Inventory:1,897
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Product details
Overview
MAX6759UTRD3 from Maxim Integrated is a low-power, single-voltage window detector IC that monitors undervoltage and overvoltage conditions on system power supplies. It features factory-trimmed 3.3V nominal threshold (T suffix), ±15% window (R suffix), and 100ms minimum reset timeout (D3 suffix). The device provides independent active-low open-drain UV and OV outputs with manual reset input, and operates from -40°C to +125°C in SOT23-6 package - used for microprocessor supply monitoring in telecom DC-DC modules.
For engineers reviewing the MAX6759UTRD3 datasheet, MAX6759UTRD3 pinout, MAX6759UTRD3 application, or MAX6759UTRD3 equivalent, key selection criteria include its dual-output architecture, ±15% adjustable window via SET pin, 100ms timeout period, 10µA supply current, and guaranteed operation down to VCC = 1.0V - critical for high-reliability embedded power sequencing.
Technical Context
The MAX6759UTRD3 implements a precision internal voltage reference with comparator-based window detection logic, where UVTH and OVTH thresholds are derived from factory-trimmed resistor dividers scaled to 3.3V nominal. Its SET pin configures hysteresis as ±5%, ±10%, or ±15% by biasing to GND, VCC, or VCC/2 respectively.
It uses a dedicated manual reset (MR) input with 26kΩ internal pullup and 4µs minimum pulse width, and asserts UV/OV outputs immediately upon threshold violation - with no delay on OV output and 100ms timeout on UV deassertion. Outputs remain valid even when VCC drops to 1.0V, supporting brownout-safe system recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal VCC Threshold | 3.3V (T suffix), factory-trimmed for accuracy across -40°C to +125°C |
| Window Tolerance | ±15% (R suffix), set by biasing SET pin to VCC/2 - enables robust noise margin |
| Reset Timeout Period | 100ms minimum (D3 suffix), ensures stable processor reset after supply recovery |
| Supply Current | 10µA typical at 3.6V - enables always-on monitoring in battery-backed systems |
| Operating Voltage Range | 1.0V to 6.0V - supports valid output assertion during deep brownout |
| Output Type | Independent active-low open-drain UV and OV - allows wired-OR logic and flexible pullup design |
| Temperature Range | -40°C to +125°C - qualified for automotive under-hood and industrial control applications |
Pinout & Package
MAX6759UTRD3 is housed in a 6-pin SOT23-6 package with exposed pad (EP) internally connected to GND. Pin 1 is VCC, Pin 2 is GND, Pin 3 is MR, Pin 4 is UV, Pin 5 is OV, and Pin 6 is SET. The EP must be soldered to PCB ground for thermal and electrical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VCC | Power Input & Monitored Supply | Primary supply powering the IC and subject to window detection - must be ≥1.0V for output validity |
| 2 - GND | Ground Reference | Common return path for all internal circuits and external pullups - connects to EP |
| 3 - MR | Active-Low Manual Reset Input | Drives UV output low when asserted; 26kΩ internal pullup ensures default high state |
| 4 - UV | Undervoltage Output | Open-drain, active-low signal asserting when VCC falls below UVTH - deasserts after 100ms timeout |
| 5 - OV | Overvoltage Output | Open-drain, active-low signal asserting when VCC exceeds OVTH - immediate response, no timeout |
| 6 - SET | Window Threshold Select | Bias to VCC/2 sets ±15% window; determines hysteresis width without external components |
Key Features
| Feature | Design Value |
|---|---|
| Independent UV/OV outputs | Enables separate fault handling - e.g., OV triggers immediate shutdown while UV initiates graceful restart |
| ±15% window via SET pin | Eliminates need for external resistors to configure hysteresis - reduces BOM count and layout area |
| 100ms reset timeout | Guarantees sufficient hold time for microprocessor initialization after supply stabilization |
| 10µA quiescent current | Permits continuous monitoring in energy-constrained systems such as remote sensors or backup controllers |
| VCC-down-to-1.0V operation | Maintains correct output logic state during brownout - prevents false resets during transient dips |
Applications
| Telecom DC-DC Module Monitoring | Industrial PLC Power Sequencing |
|---|---|
Use Scenario: Monitoring 3.3V bias rail in LTE base station RF power amplifier module. IC Role / Device Role / Timing Role: Window detector providing independent UV/OV alerts to FPGA supervisor logic. Use Value: ±15% window rejects switching noise while ensuring detection of >3.8V overvoltage and <2.8V undervoltage - preventing MOSFET gate damage and logic corruption. |
Use Scenario: Validating 3.3V I/O supply before enabling fieldbus communication in modular PLC backplane. IC Role / Device Role / Timing Role: Fault monitor asserting UV signal to disable CAN transceiver until supply stabilizes. Use Value: 100ms timeout prevents premature enablement during cold-start ripple; MR input allows operator-initiated retest after fault clearance. |
| Automotive ADAS Camera ECU | Server BMC Power Validation |
Use Scenario: Supervising 3.3V imaging sensor interface supply in rear-view camera module operating at 125°C ambient. IC Role / Device Role / Timing Role: High-temp window detector feeding watchdog timer input in safety-critical vision subsystem. Use Value: -40°C to +125°C rating ensures reliability under hood; open-drain outputs interface directly with 1.8V/3.3V tolerant BMC GPIOs. |
Use Scenario: Verifying 3.3V standby rail integrity before main CPU power-up sequence in enterprise server baseboard management controller. IC Role / Device Role / Timing Role: Dual-threshold supervisor triggering hardware reset if standby voltage deviates beyond ±15%. Use Value: Independent OV output enables immediate power-off command to PMIC, while UV initiates controlled boot abort - improving system resilience. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar window detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6758UTRD3 | Active-high push-pull UV output instead of open-drain; same 3.3V/±15%/100ms specs | Requires no external pullup; incompatible with wired-OR fault-bus architectures | Select when driving CMOS inputs directly and board space prohibits pullup resistors |
| TLV809E33DBZR | Single UV reset IC only (no OV detection); fixed 3.3V threshold; 200ms timeout; SOT23-3 package | Lacks overvoltage protection and independent OV alerting capability | Choose only for cost-sensitive, UV-only use cases where OV monitoring is handled separately |
Compared with MAX6758UTRD3, MAX6759UTRD3 offers open-drain flexibility for shared fault buses; compared with TLV809E33DBZR, it adds essential overvoltage detection and independent output control - making it suitable for full-window supervision where both supply extremes must be guarded.
Availability
MAX6759UTRD3 is available at Aetrix Electronics and suitable for telecom DC-DC modules, industrial PLCs, and automotive ADAS ECUs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6759UTRD3 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 power management, sensing, and interface applications - with emphasis on high-reliability, low-power solutions.
The MAX6754–MAX6764 family was engineered specifically for robust power-supply supervision in harsh environments, delivering factory-trimmed accuracy, ultra-low quiescent current, and extended temperature operation without external calibration.
FAQ
What is the exact undervoltage and overvoltage threshold range for MAX6759UTRD3?
The MAX6759UTRD3 has a nominal 3.3V threshold with ±15% window (R suffix), resulting in UVTH = 2.805V (min) to 2.970V (max) and OVTH = 3.630V (min) to 3.795V (max) at TA = -40°C to +125°C. These values are factory-trimmed and specified in the Electrical Characteristics table under "T, 3.3V" row with SET = VCC/2 configuration.
Does MAX6759UTRD3 support dual-voltage monitoring?
No, MAX6759UTRD3 is a single-voltage window detector monitoring only VCC. Dual-voltage variants (e.g., MAX6760–MAX6762) include VCC2 pin and latched OV functionality - MAX6759UTRD3 lacks VCC2, OVLATCH, and dual-supply capability per its pinout and functional diagram.
How does the SET pin configure the window tolerance on MAX6759UTRD3?
On MAX6759UTRD3, the SET pin selects window tolerance: connect to GND for ±5%, to VCC for ±10%, or bias to VCC/2 (e.g., via resistor divider) for ±15%. The R suffix in the part number confirms ±15% is factory-configured, but SET remains functional to adjust dynamically if needed.
What is the propagation delay behavior of the OV output on MAX6759UTRD3?
The OV output on MAX6759UTRD3 responds within 20µs (typ) of VCC exceeding OVTH, with no timeout delay - it goes low immediately and returns high-Z as soon as VCC falls below OVTH. This differs from the UV output, which holds low for 100ms after VCC rises above UVTH.
Can MAX6759UTRD3 operate with VCC below 1.4V?
Yes - MAX6759UTRD3 guarantees correct output logic states (UV/OV asserted) for VCC down to 1.0V, though voltage monitoring functionality requires VCC ≥ 1.4V per datasheet Note 2. This enables reliable brownout signaling even during severe supply collapse.
MAX6759UTRD3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Power Supply Monitor
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 3V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
MAX6759UTRD3 FAQ
1.How can I place an order for MAX6759UTRD3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6759UTRD3 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 MAX6759UTRD3 reliable?
The price and inventory of MAX6759UTRD3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6759UTRD3 is usually 5 days.
3.What payment methods are accepted for MAX6759UTRD3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6759UTRD3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6759UTRD3?
MAX6759UTRD3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6759UTRD3 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 MAX6759UTRD3?
For technical support, including MAX6759UTRD3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6759UTRD3 requirements.
6.How does Aetrix verify that MAX6759UTRD3 is sourced from the original manufacturer or authorized distributors?
All MAX6759UTRD3 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 MAX6759UTRD3 meets industry standards.
7.What is the process for return or replacement of MAX6759UTRD3?
All MAX6759UTRD3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6759UTRD3, 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 MAX6759UTRD3 part is unused and in its original packaging.
Return procedure for MAX6759UTRD3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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