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Analog Devices Inc./Maxim Integrated MAX6759UTZD3
- Part No.:
- MAX6759UTZD3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6759UTZD3.pdf
- Description:
- IC SUPERVISOR SGL VOLT WINDOW
- Quantity:
- Payment:
- Shipping:
Inventory:737
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Product details
Overview
MAX6759UTZD3 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, ±5% window (1.71V UVTH / 1.89V OVTH), 100ms minimum reset timeout, and manual reset input. It monitors microprocessor power rails in automotive and industrial control systems where supply integrity must trigger system-level fault response.
For engineers reviewing the MAX6759UTZD3 datasheet, MAX6759UTZD3 pinout, MAX6759UTZD3 application, or MAX6759UTZD3 equivalent, key selection criteria include its 1.8V ±5% window accuracy over -40°C to +125°C, 10µA supply current at 3.6V, open-drain UV/OV outputs compatible with 1.0V–6.0V VCC, and SOT23-6 package suitability for space-constrained power-rail monitoring.
Technical Context
The MAX6759UTZD3 implements dual comparators with internal reference and hysteresis (0.7%) to detect falling VCC below UVTH and rising VCC above OVTH. Its SET pin configures window width (GND = ±5%), and MR provides active-low manual reset with 300ns transient immunity and 4µs minimum pulse width.
It features no OV timeout delay (instant deassertion on return to valid range), UV output assertion with 100ms minimum timeout after VCC recovery, and guaranteed output validity down to VCC = 1.0V - enabling reliable reset generation even during brownout conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal VCC Threshold | 1.8V (factory-trimmed; UVTH = 1.89V, OVTH = 1.71V at TA = +25°C) |
| Window Accuracy | ±5% (SET = GND; ensures detection within 1.71V–1.89V range across -40°C to +125°C) |
| Supply Current | 13µA typ at VCC = 3.6V (enables battery-backed or ultra-low-power system monitoring) |
| Reset Timeout | 100ms min (D3 suffix; guarantees minimum system hold time after VCC recovery) |
| Operating Range | VCC = 1.0V to 6.0V (outputs remain asserted and valid down to 1.0V for brownout resilience) |
| Output Type | Open-drain UV and OV (supports wired-OR logic, level-shifting, and flexible pull-up voltage selection) |
| Temperature Range | -40°C to +125°C (qualified for automotive under-hood and industrial motor-control environments) |
Pinout & Package
MAX6759UTZD3 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.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VCC | Power Input & Monitored Voltage | Supplies device and serves as primary monitored rail; outputs valid down to 1.0V |
| 2 - GND | Ground Reference | Common return for all internal circuitry and external bias networks |
| 3 - MR | Active-Low Manual Reset | Asserts UV output when pulled low; internally pulled up to VCC via 26kΩ resistor |
| 4 - UV | Undervoltage Output | Open-drain output asserted low when VCC < UVTH; deasserts after 100ms timeout |
| 5 - OV | Overvoltage Output | Open-drain output asserted low when VCC > OVTH; deasserts immediately on return to valid range |
| 6 - SET | Window Select Input | Connect to GND for ±5% window; determines hysteresis and threshold spread |
Key Features
| Feature | Design Value |
|---|---|
| Factory-Trimmed 1.8V Threshold | Eliminates external resistor divider; reduces BOM count and layout area for 1.8V rail monitoring |
| Independent UV/OV Outputs | Enables separate fault handling - e.g., UV triggers safe shutdown while OV initiates crowbar protection |
| 100ms Minimum Timeout (D3) | Ensures processor completes reset sequence before releasing peripherals; prevents premature restart during marginal recovery |
| 10µA Supply Current | Minimizes quiescent load on backup supplies or energy-harvested systems |
| ±5% Window with SET = GND | Provides tight tolerance for critical 1.8V core supplies without requiring precision external components |
Applications
| Microprocessor Core Supply Monitoring | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Continuous monitoring of 1.8V FPGA or MCU core voltage in an industrial PLC controller. IC Role / Device Role / Timing Role: Window detector asserting UV/OV outputs to halt clock generation and initiate controlled state save before brownout or overvoltage shutdown. Use Value: Prevents corrupted register writes and memory corruption by guaranteeing 100ms minimum reset hold time after VCC recovers to ≥1.71V. | Use Scenario: Supervising 1.8V domain powering CAN transceivers and sensor interfaces in a vehicle BCM. IC Role / Device Role / Timing Role: Fault detector triggering diagnostic flag and disabling high-side drivers upon sustained UV condition. Use Value: Meets AEC-Q100 Grade 0 thermal requirements (-40°C to +125°C) and supports fail-safe behavior per ISO 26262 ASIL-B functional safety goals. |
| Industrial Motor Drive Gate Driver Bias Rail | Energy Meter Microcontroller Power |
Use Scenario: Monitoring isolated 1.8V auxiliary supply feeding IGBT gate driver logic in a variable-frequency drive. IC Role / Device Role / Timing Role: Independent OV output directly disables PWM modulator via open-drain pull-down; UV output latches fault interrupt. Use Value: Instant OV deassertion (<20µs propagation) enables sub-cycle overvoltage cutoff, protecting gate drivers from destructive shoot-through. | Use Scenario: Supervising 1.8V RTC and metrology ASIC supply in a smart electricity meter operating from supercapacitor backup. IC Role / Device Role / Timing Role: Ultra-low ICC (13µA typ) extends backup runtime; open-drain outputs interface directly with 3.3V microcontroller GPIOs. Use Value: Enables >10-year battery-free operation during mains outage by minimizing supervisory circuit quiescent draw. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar window voltage detection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV809E18DBZR | Single UV reset IC only (no OV detection); fixed 1.8V threshold; push-pull RESET output; no SET pin or timeout adjustment | Lacks overvoltage supervision and independent UV/OV signaling; unsuitable for bidirectional rail integrity checks | Select only if system requires UV-only reset with minimal footprint and no OV fault reporting |
| MAX6315US29D3-T | Single UV supervisor (2.93V); no OV function; 100ms timeout; SOT23-5 package; higher ICC (25µA) | Monitors higher-voltage rails only; cannot replace 1.8V window detection; no dual-output capability | Use only for 2.93V supply monitoring where OV detection is handled separately |
Compared with TLV809E18DBZR and MAX6315US29D3-T, the MAX6759UTZD3 uniquely delivers true window supervision (UV + OV) at 1.8V with independent open-drain outputs, enabling differentiated fault responses and compatibility with mixed-voltage host systems - a capability neither alternative provides.
Availability
MAX6759UTZD3 is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor drives, energy metering, and microprocessor core supply monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6759UTZD3 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 in demanding environments.
The MAX6759UTZD3 belongs to the MAX6754–MAX6764 family of low-power window detectors engineered specifically for robust, zero-calibration power-rail supervision in automotive, industrial, and computing systems operating from -40°C to +125°C.
FAQ
What is the exact undervoltage and overvoltage threshold for MAX6759UTZD3?
The MAX6759UTZD3 has a factory-trimmed nominal VCC threshold of 1.8V. Its undervoltage threshold (UVTH) is 1.71V and overvoltage threshold (OVTH) is 1.89V at +25°C, with ±5% window accuracy (SET = GND) maintained over -40°C to +125°C. These values are specified in the Electrical Characteristics table under "VCC Undervoltage Threshold" and "VCC Overvoltage Threshold" with suffix W (1.8V).
Does MAX6759UTZD3 support operation below 1.8V VCC?
Yes, MAX6759UTZD3 guarantees correct output logic states (UV and OV asserted) for VCC down to 1.0V, though voltage monitoring functionality requires VCC ≥ 1.4V. This allows the MAX6759UTZD3 to maintain fault signaling during deep brownout conditions common in automotive stop-start systems.
What is the function of the SET pin on MAX6759UTZD3?
The SET pin on MAX6759UTZD3 selects the window voltage tolerance: connecting SET to GND configures a ±5% window (1.71V/1.89V), to VCC selects ±10%, and biasing to VCC/2 selects ±15%. For MAX6759UTZD3, the Z suffix indicates 1.8V nominal with ±5% window, so SET must be tied to GND to achieve the specified thresholds.
How does the 100ms timeout (D3 suffix) apply to MAX6759UTZD3 outputs?
The D3 timeout applies only to the UV output of MAX6759UTZD3: after VCC rises above UVTH, the UV output remains asserted for a minimum of 100ms before deasserting. The OV output has no timeout - it deasserts immediately when VCC falls below OVTH. This asymmetry enables fast overvoltage recovery while ensuring sufficient undervoltage hold time for system reset sequencing.
Is MAX6759UTZD3 pin-compatible with other devices in the MAX6754–MAX6764 family?
MAX6759UTZD3 uses the 6-pin SOT23-6 package shared with MAX6757–MAX6759, MAX6763, and MAX6764. However, pin functions differ across variants - e.g., MAX6763/MAX6764 use UVIN/OVIN inputs instead of VCC monitoring. Thus, MAX6759UTZD3 is not pin-compatible with MAX6763UT-T or MAX6764UT-T despite identical packaging.
MAX6759UTZD3 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:
- 2.5V
- Output:
- Open Drain, Open Drain
- Reset:
- Active Low
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
MAX6759UTZD3 FAQ
1.How can I place an order for MAX6759UTZD3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6759UTZD3 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 MAX6759UTZD3 reliable?
The price and inventory of MAX6759UTZD3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6759UTZD3 is usually 5 days.
3.What payment methods are accepted for MAX6759UTZD3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6759UTZD3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6759UTZD3?
MAX6759UTZD3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6759UTZD3 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 MAX6759UTZD3?
For technical support, including MAX6759UTZD3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6759UTZD3 requirements.
6.How does Aetrix verify that MAX6759UTZD3 is sourced from the original manufacturer or authorized distributors?
All MAX6759UTZD3 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 MAX6759UTZD3 meets industry standards.
7.What is the process for return or replacement of MAX6759UTZD3?
All MAX6759UTZD3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6759UTZD3, 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 MAX6759UTZD3 part is unused and in its original packaging.
Return procedure for MAX6759UTZD3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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