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Analog Devices Inc./Maxim Integrated MAX6759UTWD0
- Part No.:
- MAX6759UTWD0
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6759UTWD0.pdf
- Description:
- IC SUPERVISOR SGL VOLT WINDOW
- Quantity:
- Payment:
- Shipping:
Inventory:2,020
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Product details
Overview
MAX6759UTWD0 from Maxim Integrated is a single-supply, low-power window voltage detector with independent undervoltage (UV) and overvoltage (OV) open-drain outputs, factory-trimmed 1.8V nominal threshold, ±10% window setting (SET = VCC), and 100ms minimum reset timeout. It monitors microprocessor power rails in industrial embedded systems where precise supply supervision prevents system lockup during brownout or surge events.
For engineers reviewing the MAX6759UTWD0 datasheet, MAX6759UTWD0 pinout, MAX6759UTWD0 application, or MAX6759UTWD0 equivalent, key selection criteria include its SOT23-6 package, dual independent UV/OV assertion logic, 10µA supply current at 3.6V, -40°C to +125°C operation, and compatibility with 1.0V–6.0V VCC while maintaining output validity down to 1V.
Technical Context
The MAX6759UTWD0 implements a precision bandgap reference with internal resistor dividers to set fixed 1.8V nominal thresholds, with SET pin selection enabling ±10% window hysteresis (1.62V UVTH, 1.98V OVTH). Its UV and OV outputs assert independently upon falling VCC below UVTH or rising above OVTH, with no timeout on OV but 100ms min delay on UV deassertion after recovery.
It features a manual reset (MR) input with 26kΩ internal pull-up, 4µs minimum pulse width, and 300ns transient immunity; outputs are open-drain, supporting flexible logic-level interfacing and wired-OR configurations with external pull-ups. The device operates without requiring external capacitors for basic functionality.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal VCC Threshold | 1.8V - Factory-trimmed for monitoring standard I/O rails; enables direct use without external resistors. |
| Window Tolerance | ±10% - Set by connecting SET to VCC; yields UVTH = 1.62V, OVTH = 1.98V at +25°C. |
| Supply Current | 13µA typ at 3.6V - Enables always-on supervision in battery-backed or ultra-low-power systems. |
| Reset Timeout | 100ms min - Ensures stable processor reset hold time after supply recovery, per JEDEC JESD76. |
| Operating Temp | -40°C to +125°C - Qualified for under-hood automotive, industrial PLC, and telecom equipment environments. |
| VCC Range | 1.0V to 6.0V - Supports valid output states even during deep brownout (down to 1V), critical for graceful shutdown. |
| Output Type | Open-drain UV/OV - Allows level-shifting, bus sharing, and compatibility with 1.8V/3.3V/5V logic families. |
Pinout & Package
MAX6759UTWD0 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, Pin 6 is SET.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pin 1) | Power Input & Monitored Supply | Powers the IC and serves as the monitored voltage rail; output validity guaranteed down to 1.0V. |
| GND (Pin 2) | Reference Ground | Common return path for all internal circuits and external pull-up resistors on UV/OV outputs. |
| MR (Pin 3) | Active-Low Manual Reset | Asserts UV output when pulled low; 26kΩ internal pull-up eliminates need for external resistor. |
| UV (Pin 4) | Undervoltage Output | Open-drain output asserting low when VCC < 1.62V; deasserts after 100ms timeout upon recovery. |
| OV (Pin 5) | Overvoltage Output | Open-drain output asserting low when VCC > 1.98V; immediate assertion/deassertion, no timeout. |
| SET (Pin 6) | Window Select Input | Configures hysteresis: tied to VCC for ±10% window; biasing to VCC/2 enables ±15%. |
Key Features
| Feature | Design Value |
|---|---|
| Independent UV/OV Outputs | Enables separate fault reporting paths-e.g., UV triggers safe shutdown, OV triggers crowbar circuit activation. |
| 100ms Minimum Timeout | Guarantees sufficient reset hold time for ARM Cortex-M or RISC-V cores requiring ≥100ms POR stabilization. |
| 10µA Supply Current | Reduces quiescent load on backup batteries or energy-harvesting sources by >90% vs. legacy supervisors. |
| Immunity to Short Transients | 300ns minimum glitch rejection prevents false triggering from ESD or switching noise on VCC. |
| Valid Outputs Down to 1V VCC | Ensures correct logic state during deep brownout, enabling controlled firmware-initiated shutdown before power collapse. |
Applications
| Industrial PLC Power Monitoring | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Supervises 1.8V I/O supply in programmable logic controller CPU module during mains fluctuation or DC-DC converter instability. IC Role / Device Role / Timing Role: Window detector providing independent UV/OV flags to FPGA-based safety monitor with 100ms reset hold timing. Use Value: Prevents spurious I/O writes during undervoltage by holding reset until stable 1.8V is confirmed for ≥100ms. | Use Scenario: Monitors 1.8V domain powering CAN transceiver and LIN interface in BCM under cold-crank (-4V) and load-dump (+36V) conditions. IC Role / Device Role / Timing Role: Single-supply supervisor asserting UV on battery sag below 1.62V and OV on regulator overshoot above 1.98V. Use Value: Enables early warning of failing LDO before CAN communication loss, supporting ASIL-B diagnostic coverage. |
| Telecom Line Card Voltage Guard | Medical Infusion Pump Logic Supply |
Use Scenario: Guards 1.8V FPGA configuration rail on high-density line cards exposed to hot-swap transients and shared backplane noise. IC Role / Device Role / Timing Role: Open-drain UV/OV outputs wired-OR'd into centralized fault bus with other supervisors. Use Value: 300ns transient immunity rejects PCIe switch noise spikes, avoiding false resets during live insertion. | Use Scenario: Supervises isolated 1.8V logic supply powering microcontroller and motor driver in Class II medical device with battery backup. IC Role / Device Role / Timing Role: Provides fail-safe reset with 100ms timeout and MR input for user-initiated recalibration sequence. Use Value: Guarantees MCU remains held in reset during battery switchover, meeting IEC 62304 SW safety requirement C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV809KDBZR | Single-output (reset only), no independent OV; ±2% accuracy vs. ±10% window; 350ms timeout. | Lacks OV detection-cannot flag overvoltage faults; suitable only for brownout-only protection. | Select when only undervoltage reset is required and tighter threshold accuracy is prioritized over OV capability. |
| ADM6315-20ARTZ-R7 | Single UV/OV combined output (not independent); ±2.5% threshold accuracy; 200ms timeout; SOT23-5 package. | Cannot differentiate UV vs. OV cause; requires external logic to decode fault type from single output. | Choose when board space is constrained (5-pin vs. 6-pin) and fault diagnosis granularity is not required. |
Compared with TLV809KDBZR and ADM6315-20ARTZ-R7, MAX6759UTWD0 uniquely delivers independent UV/OV signaling in SOT23-6, enabling root-cause diagnostics without added components-critical for functional safety and predictive maintenance architectures.
Availability
MAX6759UTWD0 is available at Aetrix Electronics and suitable for industrial PLCs, automotive body control modules, telecom line cards, and medical infusion pumps requiring stable component supply across extended temperature and long product lifecycles.
Supply support for MAX6759UTWD0 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 demanding industrial, automotive, and communications applications.
The MAX6754–MAX6764 family was engineered specifically for robust, low-power supply supervision in harsh environments-delivering independent fault reporting, wide VCC operation, and guaranteed performance from -40°C to +125°C.
FAQ
What is the exact undervoltage and overvoltage threshold for MAX6759UTWD0?
The MAX6759UTWD0 has a factory-trimmed nominal VCC threshold of 1.8V with ±10% window tolerance set by connecting SET to VCC. This yields a guaranteed undervoltage threshold (UVTH) of 1.62V (min) and overvoltage threshold (OVTH) of 1.98V (max) over -40°C to +125°C, per the datasheet's electrical characteristics table.
Does MAX6759UTWD0 require external components to operate?
No, MAX6759UTWD0 operates autonomously with no external components required for basic supervision. Its internal 26kΩ MR pull-up eliminates need for an external resistor, and factory-trimmed thresholds remove dependency on external dividers. A 0.1µF bypass capacitor on VCC is recommended for noisy environments but not mandatory for functionality.
How does the 100ms timeout period function in MAX6759UTWD0?
The 100ms minimum timeout applies only to the UV output deassertion: after VCC rises above UVTH, MAX6759UTWD0 holds UV low for ≥100ms before releasing it high-impedance. The OV output has no timeout-it asserts/deasserts immediately. This ensures reliable processor reset hold time per industry standards like JEDEC JESD76.
Can MAX6759UTWD0 monitor voltages below 1.8V?
No-MAX6759UTWD0 is specifically configured for 1.8V nominal monitoring (suffix 'W'). To supervise lower rails such as 1.2V or 0.9V, select variants like MAX6759UTIGD0 (1.2V) or MAX6759UTEED0 (0.9V). The 'W' suffix in MAX6759UTWD0 permanently fixes the internal divider ratio for 1.8V.
What is the purpose of the SET pin on MAX6759UTWD0?
The SET pin on MAX6759UTWD0 selects the window hysteresis: tying it to GND gives ±5%, to VCC gives ±10% (as used in MAX6759UTWD0), and biasing to VCC/2 gives ±15%. This adjusts both UVTH and OVTH proportionally around the 1.8V nominal, enabling design flexibility for varying supply tolerance requirements without changing the IC.
MAX6759UTWD0 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:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 1.8V
- Output:
- Open Drain, Open Drain
- Reset:
- Active Low
- Reset Timeout:
- 20µs Typical
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
MAX6759UTWD0 FAQ
1.How can I place an order for MAX6759UTWD0 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6759UTWD0 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 MAX6759UTWD0 reliable?
The price and inventory of MAX6759UTWD0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6759UTWD0 is usually 5 days.
3.What payment methods are accepted for MAX6759UTWD0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6759UTWD0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6759UTWD0?
MAX6759UTWD0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6759UTWD0 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 MAX6759UTWD0?
For technical support, including MAX6759UTWD0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6759UTWD0 requirements.
6.How does Aetrix verify that MAX6759UTWD0 is sourced from the original manufacturer or authorized distributors?
All MAX6759UTWD0 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 MAX6759UTWD0 meets industry standards.
7.What is the process for return or replacement of MAX6759UTWD0?
All MAX6759UTWD0 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6759UTWD0, 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 MAX6759UTWD0 part is unused and in its original packaging.
Return procedure for MAX6759UTWD0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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