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Analog Devices Inc./Maxim Integrated MAX6759UTRD3+T
- Part No.:
- MAX6759UTRD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6759UTRD3+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,014
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Product details
Overview
MAX6759UTRD3+T from Analog Devices is a single-supply, low-power window voltage detector monitoring 3.3V system supplies with ±10% threshold window (OVTH = 3.63V, UVTH = 2.805V), 100ms minimum reset timeout, active-low push-pull UV output and open-drain OV output, used in telecom power sequencing and microprocessor supervision.
For engineers reviewing the MAX6759UTRD3+T datasheet, MAX6759UTRD3+T pinout, MAX6759UTRD3+T application, or MAX6759UTRD3+T equivalent, key selection criteria include factory-trimmed 3.3V thresholds, dual independent UV/OV outputs, manual reset input, -40°C to +125°C operation, and SOT23-6 package compatibility with space-constrained embedded systems.
Technical Context
The MAX6759UTRD3+T implements a precision internal reference with ±1% threshold accuracy over temperature, using a resistor-divider network trimmed at wafer test to set nominal 3.3V detection points. Its dual-output architecture separates undervoltage assertion (UV pin) from overvoltage assertion (OV pin), eliminating shared timing constraints between fault conditions.
It integrates a 26kΩ internal MR pullup, supports SET pin biasing at VCC for ±10% window selection, and guarantees correct output logic state down to VCC = 1.0V - enabling reliable reset generation even during brownout recovery. The D3 timeout option provides 100ms minimum deassertion delay after UV threshold crossing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.0V to 6.0V - ensures valid output operation during deep brownout; outputs remain asserted correctly down to 1.0V |
| Undervoltage Threshold (UVTH) | 2.805V (min) to 2.970V (max) at TA = -40°C to +125°C - factory-trimmed for 3.3V nominal supply with ±10% window |
| Overvoltage Threshold (OVTH) | 3.630V (min) to 3.795V (max) at TA = -40°C to +125°C - matches 3.3V × 1.10 for precise overvoltage detection |
| Reset Timeout Period | 100ms (min), 185ms (typ), 320ms (max) - prevents premature processor release during slow-rising supply rails |
| Supply Current (ICC) | 13µA (min) to 30µA (max) at VCC = 3.6V - enables battery-backed or ultra-low-power always-on monitoring |
| Operating Temperature | -40°C to +125°C - qualified for automotive under-hood and industrial control environments |
| Output Types | UV: active-low push-pull; OV: active-low open-drain - allows flexible interface to µP NMI/INT lines and external pull-up networks |
Pinout & Package
MAX6759UTRD3+T is housed in a 6-pin SOT23 package (package code U6+1, outline 21-0058), with exposed pad not present. Pin 1 is VCC, Pin 2 is GND, Pin 3 is MR, Pin 4 is UV, Pin 5 is OV, Pin 6 is SET.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VCC | Power Input & Monitored Voltage | Supplies device and serves as primary monitored rail; requires 0.1µF bypass capacitor to GND |
| 2 - GND | Reference Ground | Common return path for all internal circuits and external bypass components |
| 3 - MR | Active-Low Manual Reset | Asserts UV and OV outputs when pulled low; internally pulled up to VCC via 26kΩ resistor |
| 4 - UV | Undervoltage Output | Active-low push-pull output asserting when VCC falls below UVTH; no timeout on deassertion |
| 5 - OV | Overvoltage Output | Active-low open-drain output asserting when VCC exceeds OVTH; immediate deassertion on threshold exit |
| 6 - SET | Window Select Input | Bias at VCC selects ±10% window; bias at GND or VCC/2 selects ±5% or ±15% respectively |
Key Features
| Feature | Design Value |
|---|---|
| Factory-Trimmed 3.3V Detection | Eliminates external resistor networks and calibration effort for standard I/O rail monitoring |
| Independent UV and OV Outputs | Enables separate fault handling - e.g., UV triggers safe shutdown while OV activates crowbar circuitry |
| 100ms Minimum Timeout Delay | Ensures stable processor reset during slow power-up sequences common in DC-DC converter modules |
| Manual Reset Input with Internal Pullup | Reduces BOM count by removing external pullup resistor; supports pushbutton-initiated system reset |
| ±10% Window Selection via SET Pin | Provides precise tolerance matching to 3.3V supply spec without requiring layout changes or component swaps |
Applications
| Telecom Power Sequencing | Industrial PLC I/O Supervision |
|---|---|
Use Scenario: Monitoring 3.3V backplane power in carrier-grade Ethernet switches during hot-swap insertion. IC Role / Device Role / Timing Role: Window detector asserting UV on undershoot and OV on overshoot during transient events, with 100ms timeout preventing false resets. Use Value: Prevents FPGA configuration corruption by holding reset until 3.3V stabilizes within ±10% of nominal. | Use Scenario: Supervising isolated 3.3V I/O supply in programmable logic controller modules operating in harsh factory environments. IC Role / Device Role / Timing Role: Dual-output supervisor providing independent fault signals to safety MCU and analog front-end ASIC. Use Value: Enables differentiated response - UV triggers graceful I/O disable, while OV initiates immediate isolation relay activation. |
| Automotive ADAS Camera Module | Server BMC Power Health Monitoring |
Use Scenario: Validating 3.3V image sensor and ISP core supply in rear-view camera ECU before video stream initialization. IC Role / Device Role / Timing Role: Single-chip window monitor with -40°C to +125°C rating, asserting UV/OV to SoC's WDOG input. Use Value: Guarantees deterministic boot sequence under cold-cranking conditions where 3.3V may dip to 2.75V. | Use Scenario: Monitoring standby 3.3V rail powering Baseboard Management Controller in 1U server chassis. IC Role / Device Role / Timing Role: Low-current (13–30µA) supervisor enabling always-on health check without impacting sleep-mode power budget. Use Value: Detects gradual rail degradation due to aging capacitors before catastrophic BMC lockup occurs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar window voltage monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6758UTRD3+T | Identical pinout and thresholds, but features active-high push-pull UV output instead of active-low | Requires inverted logic handling in µP interrupt input; unsuitable where NMI pin expects active-low assertion | Select when system design uses active-high reset signaling or requires direct connection to GPIO without external inverter |
| TLV809E33DBZR | Single UV detector only (no OV function); fixed 3.08V threshold; no SET pin or timeout adjustment | Lacks overvoltage protection and window functionality; cannot replace full window supervision requirement | Use only for cost-sensitive applications needing basic undervoltage reset without overvoltage coverage |
Compared with MAX6758UTRD3+T and TLV809E33DBZR, the MAX6759UTRD3+T uniquely delivers independent active-low UV and open-drain OV outputs with factory-set 3.3V ±10% window and 100ms timeout - making it the only drop-in solution for dual-fault detection in telecom and automotive power rails.
Availability
MAX6759UTRD3+T is available at Aetrix Electronics and suitable for telecom infrastructure, industrial PLCs, automotive ADAS modules, and server BMC subsystems requiring stable component supply across extended temperature and long product lifecycles.
Supply support for MAX6759UTRD3+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 MAX6759UTRD3+T belongs to the MAX6754–MAX6764 family of low-power window detectors, designed specifically for robust, zero-calibration power supply supervision in mission-critical embedded systems.
FAQ
What is the exact undervoltage and overvoltage threshold range for MAX6759UTRD3+T at full temperature range?
The MAX6759UTRD3+T has an undervoltage threshold (UVTH) ranging from 2.805V (min) to 2.970V (max) and an overvoltage threshold (OVTH) from 3.630V (min) to 3.795V (max), specified over -40°C to +125°C. These values correspond to a factory-trimmed 3.3V nominal supply with ±10% window tolerance, confirmed in the Electrical Characteristics table of the official datasheet.
Does MAX6759UTRD3+T support manual reset, and how is it implemented?
Yes, MAX6759UTRD3+T includes an active-low manual reset (MR) input on Pin 3. It is internally pulled up to VCC via a 26kΩ resistor. Driving MR low asserts both UV and OV outputs; outputs remain asserted for 300ns after MR rises, then follow timeout behavior. This eliminates need for external pullup and enables pushbutton-initiated system reset.
What package type and pin count does MAX6759UTRD3+T use, and is the exposed pad connected?
MAX6759UTRD3+T uses a 6-pin SOT23 package (package code U6+1, outline number 21-0058). It does not include an exposed pad. Pin 1 = VCC, Pin 2 = GND, Pin 3 = MR, Pin 4 = UV, Pin 5 = OV, Pin 6 = SET - matching the MAX6757/MAX6758/MAX6759 functional group per datasheet Pin Description table.
Can MAX6759UTRD3+T monitor voltages other than 3.3V?
No - MAX6759UTRD3+T is factory-trimmed exclusively for 3.3V nominal supply monitoring (suffix "T" per Table 1). It does not support adjustable thresholds like MAX6763/MAX6764. For 2.5V, 1.8V, or adjustable rails, alternate variants such as MAX6757UTZD3+T or MAX6764UT-T must be selected.
What is the purpose of the SET pin on MAX6759UTRD3+T, and how should it be configured?
The SET pin on MAX6759UTRD3+T selects the window tolerance: connect to VCC for ±10% (default for this variant), to GND for ±5%, or bias at VCC/2 for ±15%. Since MAX6759UTRD3+T is ordered with "R" suffix, SET must be tied to VCC to achieve its specified 3.3V ±10% window - deviation invalidates guaranteed threshold accuracy.
MAX6759UTRD3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- 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:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6759UTRD3+T FAQ
1.How can I place an order for MAX6759UTRD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6759UTRD3+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 MAX6759UTRD3+T reliable?
The price and inventory of MAX6759UTRD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6759UTRD3+T is usually 5 days.
3.What payment methods are accepted for MAX6759UTRD3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6759UTRD3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6759UTRD3+T?
MAX6759UTRD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6759UTRD3+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 MAX6759UTRD3+T?
For technical support, including MAX6759UTRD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6759UTRD3+T requirements.
6.How does Aetrix verify that MAX6759UTRD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6759UTRD3+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 MAX6759UTRD3+T meets industry standards.
7.What is the process for return or replacement of MAX6759UTRD3+T?
All MAX6759UTRD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6759UTRD3+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 MAX6759UTRD3+T part is unused and in its original packaging.
Return procedure for MAX6759UTRD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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