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Analog Devices Inc./Maxim Integrated MAX6759UTLD3+T
- Part No.:
- MAX6759UTLD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- -
- Datasheet:
-
MAX6759UTLD3+T.pdf
- Description:
- IC DETECT VOLT WINDOW SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,369
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Product details
Overview
MAX6759UTLD3+T from Analog Devices is a low-power, single-voltage window detector that monitors undervoltage and overvoltage conditions on 3.3V system supplies with ±10% factory-trimmed thresholds (UVTH = 2.805V–2.970V, OVTH = 3.630V–3.795V), 100ms minimum reset timeout, and active-low open-drain UV/UV and OV outputs. It features manual reset input (MR), SET pin for window selection, and operates from -40°C to +125°C in SOT23-6 package - used in telecom power supervision and server rail monitoring.
For engineers reviewing the MAX6759UTLD3+T datasheet, MAX6759UTLD3+T pinout, MAX6759UTLD3+T application, or MAX6759UTLD3+T equivalent, key selection criteria include its 3.3V nominal monitoring capability, ±10% window tolerance, 100ms timeout period, open-drain output configuration, and AEC-Q100 qualification (where applicable).
Technical Context
The MAX6759UTLD3+T implements dual independent comparators with internal reference and hysteresis (0.7%) to detect VCC falling below UVTH or rising above OVTH. Its SET pin configures window width (±5%/±10%/±15%), and MR provides asynchronous reset assertion with 300ns propagation delay and 100ms deassertion timeout.
It uses a precision bandgap reference and comparator architecture optimized for stable operation across temperature (-40°C to +125°C) and supply voltage (1.0V to 6.0V), with UV/OV outputs asserted immediately upon threshold breach and no timeout applied to OV - only UV/RESET deasserts after 100ms post-recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Supply Voltage | 3.3V - factory-trimmed for monitoring standard I/O rail; UVTH = 2.805V–2.970V, OVTH = 3.630V–3.795V at -40°C to +125°C |
| Window Tolerance | ±10% - set by connecting SET pin to VCC; enables robust margin against ripple and drift in 3.3V systems |
| Reset Timeout Period | 100ms (min) - ensures microprocessor reset hold time meets ARM/Cortex boot requirements after power recovery |
| Supply Current | 13µA (typ) at 3.6V - enables always-on monitoring in battery-backed or low-power standby circuits |
| Output Type | Open-drain UV and OV - allows wired-OR logic, level translation, and flexible pull-up voltage selection (up to 6.5V) |
| Operating Temperature | -40°C to +125°C - supports industrial, automotive, and telecom base station environments without derating |
| Manual Reset Pulse Width | 4µs (min) - compatible with standard push-button debounced inputs and FPGA-generated reset signals |
Pinout & Package
MAX6759UTLD3+T is housed in a 6-pin SOT23 package (package code U6+1, outline 21-0058), with exposed pad not connected. Pin functions are validated per MAX6757–MAX6759 functional diagrams and pin description table.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparators and bias circuitry; must be low-impedance connection to system ground plane |
| 2 | UV / UV | Active-low undervoltage output; open-drain, sinks up to 1.4mA at VCC ≥ 1.98V; asserts when VCC < UVTH |
| 3 | MR | Active-low manual reset input; internally pulled up to VCC via 26kΩ; 4µs min pulse width required for reliable assertion |
| 4 | SET | Threshold window select; connect to VCC for ±10% window; high-impedance input with ±1µA bias current |
| 5 | VCC | Power supply and monitored voltage input; operates from 1.0V to 6.0V; outputs valid down to VCC = 1.0V |
| 6 | OV | Active-low overvoltage output; open-drain, sinks up to 1.4mA at VCC ≥ 1.98V; asserts immediately when VCC > OVTH, no timeout |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 3.3V window detection | Eliminates external resistor dividers and calibration; reduces BOM count and layout area in space-constrained telecom modules |
| Independent UV and OV open-drain outputs | Enables separate fault signaling to PMIC and processor - e.g., UV triggers safe shutdown while OV initiates crowbar protection |
| 100ms reset timeout with 20µs propagation delay | Meets JEDEC JESD76B reset timing for 3.3V microcontrollers; ensures deterministic boot sequence after brownout recovery |
| Manual reset input with internal 26kΩ pull-up | Reduces external component count; supports push-button reset and FPGA-controlled system initialization without external pull-up |
| Immunity to 300ns transients | Rejects ESD-induced glitches and switching noise on VCC rail; prevents false resets in DC-DC converter applications |
Applications
| Telecom Power Supervision | Server Board Management |
|---|---|
Use Scenario: Monitoring 3.3V management rail in 5G remote radio units subject to thermal cycling and load transients. IC Role / Device Role / Timing Role: Window detector asserting UV/OV flags to baseband FPGA for graceful shutdown or alarm logging. Use Value: ±10% window and -40°C to +125°C rating ensure reliable operation under field environmental stress without recalibration. | Use Scenario: Supervising auxiliary 3.3V supply powering BMC (Baseboard Management Controller) in rack-mounted servers. IC Role / Device Role / Timing Role: Provides fail-safe reset signal with 100ms timeout to prevent BMC lockup during power sequencing faults. Use Value: Open-drain outputs interface directly with 1.8V/3.3V BMC GPIOs; low 13µA ICC enables always-on monitoring without impacting standby power budget. |
| Industrial PLC I/O Module | Automotive ADAS Camera Power |
Use Scenario: Protecting programmable logic controller I/O expansion modules powered from isolated 3.3V DC-DC converters. IC Role / Device Role / Timing Role: Detects undervoltage caused by transformer saturation or overvoltage due to regulator failure; triggers hardware disable of digital outputs. Use Value: MR pin allows centralized watchdog-initiated reset; SET pin enables field-adjustable margin via firmware-controlled GPIO. | Use Scenario: Monitoring 3.3V camera sensor and ISP supply in automotive surround-view systems operating near engine compartments. IC Role / Device Role / Timing Role: Window detector feeding fault signal to vehicle CAN gateway; OV latch disabled (not present in MAX6759), enabling immediate fault reporting. Use Value: AEC-Q100 qualified variant available; 125°C operation avoids thermal derating in under-hood mounting locations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar window voltage monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6758UTLD3+T | Active-high push-pull UV output instead of open-drain; identical thresholds, timeout, and pinout | Requires no external pull-up; suited for direct connection to CMOS inputs without level-shifting | Select when interfacing with processors lacking internal pull-ups or requiring active-high reset assertion logic |
| TLV809E33DBZR | Single undervoltage detector only (no OV function); fixed 3.3V UV threshold; SOT23-3 package; no SET or MR pins | Limited to brownout-only detection; no overvoltage protection or manual reset capability | Select only if system-level OV monitoring is handled elsewhere (e.g., by PMIC or discrete Zener clamp) |
Compared with MAX6758UTLD3+T and TLV809E33DBZR, the MAX6759UTLD3+T uniquely delivers independent open-drain UV/OV outputs with manual reset and adjustable window - essential for safety-critical dual-fault detection in telecom and industrial power systems.
Availability
MAX6759UTLD3+T is available at Aetrix Electronics and suitable for telecom infrastructure, server board management, and industrial PLC applications requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant variants.
Supply support for MAX6759UTLD3+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 MAX6754–MAX6764 family was designed for ultra-low-power, high-accuracy voltage supervision in harsh-environment embedded systems - emphasizing precision threshold matching, wide temperature operation, and minimal external components.
FAQ
What is the exact undervoltage and overvoltage threshold range for MAX6759UTLD3+T at full temperature?
The MAX6759UTLD3+T has factory-trimmed thresholds for 3.3V nominal operation: UVTH = 2.805V to 2.970V (falling VCC), OVTH = 3.630V to 3.795V (rising VCC), specified over -40°C to +125°C. These values reflect ±10% window tolerance with 0.7% hysteresis, confirmed in the Electrical Characteristics table under "T, 3.3V" row with SET = VCC.
Does MAX6759UTLD3+T support overvoltage latching?
No, MAX6759UTLD3+T does not include an overvoltage latch function. Latching is exclusive to the MAX6760/MAX6761/MAX6762 series (which feature OVLATCH pin). The MAX6759UTLD3+T provides immediate OV assertion on threshold breach and automatic deassertion when VCC falls below OVTH - no latch control or manual clear required.
What is the function of the SET pin on MAX6759UTLD3+T, and how should it be connected?
The SET pin on MAX6759UTLD3+T selects the window tolerance: connect to GND for ±5%, to VCC for ±10%, or bias to VCC/2 for ±15%. For MAX6759UTLD3+T (suffix "T" = 3.3V, "D3" = 100ms timeout), SET must be tied to VCC to achieve the specified ±10% window. Input bias current is ±1µA, allowing direct connection without additional buffering.
Can MAX6759UTLD3+T monitor voltages other than 3.3V?
No - MAX6759UTLD3+T is factory-trimmed exclusively for 3.3V nominal monitoring (suffix "T"). Other variants exist for 5V (L), 3.0V (R), 2.5V (Z), 1.8V (W), etc. To monitor non-3.3V rails, select the appropriate suffix (e.g., MAX6759UKLD3+T for 5V) or use the adjustable MAX6763/MAX6764 with external resistor dividers.
Is MAX6759UTLD3+T qualified for automotive applications?
The MAX6759UTLD3+T itself is not AEC-Q100 qualified; however, Analog Devices offers automotive-grade versions denoted by "/V" suffix (e.g., MAX6759UTLD3/V). These undergo additional testing for temperature cycling, ESD, and reliability per AEC-Q100 Rev H. For automotive ADAS or body electronics, specify the /V variant to ensure compliance.
MAX6759UTLD3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- -
- Number of Voltages Monitored:
- -
- Voltage - Threshold:
- -
- Output:
- -
- Reset:
- -
- Reset Timeout:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX6759UTLD3+T FAQ
1.How can I place an order for MAX6759UTLD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6759UTLD3+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 MAX6759UTLD3+T reliable?
The price and inventory of MAX6759UTLD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6759UTLD3+T is usually 5 days.
3.What payment methods are accepted for MAX6759UTLD3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6759UTLD3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6759UTLD3+T?
MAX6759UTLD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6759UTLD3+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 MAX6759UTLD3+T?
For technical support, including MAX6759UTLD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6759UTLD3+T requirements.
6.How does Aetrix verify that MAX6759UTLD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6759UTLD3+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 MAX6759UTLD3+T meets industry standards.
7.What is the process for return or replacement of MAX6759UTLD3+T?
All MAX6759UTLD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6759UTLD3+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 MAX6759UTLD3+T part is unused and in its original packaging.
Return procedure for MAX6759UTLD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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