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Analog Devices Inc./Maxim Integrated MAX6758UTLD0+T
- Part No.:
- MAX6758UTLD0+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- -
- Datasheet:
-
MAX6758UTLD0+T.pdf
- Description:
- IC DETECT VOLT WINDOW SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,730
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Product details
Overview
The MAX6758UTLD0+T from Analog Devices is a single-supply, low-power window voltage detector with factory-trimmed 3.3V nominal monitoring, ±5% threshold window (D0 suffix), active-high push-pull undervoltage output (UT suffix), and 20μs typical reset timeout. It monitors system VCC for undervoltage/overvoltage faults and asserts UV when VCC falls below 2.97V or rises above 3.63V (±5% at 3.3V), supporting telecom power rail supervision.
For engineers reviewing the MAX6758UTLD0+T datasheet, MAX6758UTLD0+T pinout, MAX6758UTLD0+T application, or MAX6758UTLD0+T equivalent, this device delivers precise, temperature-stable window detection with manual reset input, latch-free OV/UV separation, and operation down to 1.0V supply - critical for embedded microprocessor reset integrity in automotive and industrial DC-DC modules.
Technical Context
The MAX6758UTLD0+T implements dual independent comparators with internal reference and hysteresis (0.7%) to detect VCC crossing of fixed UVTH (2.97V) and OVTH (3.63V) thresholds. Its SET pin configures window width (GND = ±5%), and MR enables external reset assertion with 300ns propagation delay and 4μs minimum pulse width.
It uses a precision bandgap reference and rail-to-rail input stage to maintain valid outputs across VCC = 1.0V–6.0V, with guaranteed logic states down to 1.0V supply. The UV output is active-high push-pull, deasserting after 20μs once VCC returns within window - no timeout delay required for UV assertion/deassertion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal VCC | 3.3V - factory-trimmed for direct monitoring of 3.3V system rails without external dividers. |
| UV/OV Window | ±5% - SET pin tied to GND yields UVTH = 2.97V, OVTH = 3.63V at +25°C, stable over -40°C to +125°C. |
| UV Output Type | Active-high push-pull - drives high to µP UV input without pull-up; sinks 1.0mA at VCC ≥ 1.71V. |
| Reset Timeout | 20μs typ - fast recovery after fault clearance; no minimum delay, enabling rapid system restart. |
| Supply Current | 13–30µA at VCC = 3.6V - ultra-low quiescent current preserves battery life in always-on monitoring. |
| Operating Range | -40°C to +125°C - qualified for under-hood automotive and industrial environments. |
| MR Input Threshold | 0.23×VCC low / 0.6×VCC high - compatible with 1.8V/3.3V logic; internally pulled up to VCC via 26kΩ. |
Pinout & Package
MAX6758UTLD0+T is housed in a 6-pin SOT23 package (package code U6+1, outline 21-0058), with thermal resistance θJA = 115°C/W on multilayer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for all internal circuits and output drivers; must be low-impedance connection. |
| 2 | UV | Active-high push-pull undervoltage output - asserts high when VCC < 2.97V or MR low; drives µP UV pin directly. |
| 3 | SET | Window select input - tie to GND for ±5% window; bias to VCC/2 for ±15%; controls both UVTH and OVTH simultaneously. |
| 4 | VCC | Power supply and monitored voltage - powers device and serves as input to internal voltage dividers; bypass with 0.1µF to GND. |
| 5 | MR | Active-low manual reset - forces UV high when pulled low; 4μs min pulse width ensures reliable assertion. |
| 6 | OV | Active-low open-drain overvoltage output - asserts low when VCC > 3.63V; requires external pull-up for logic-level interface. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 3.3V window | Eliminates external resistor networks; guarantees UVTH = 2.97V / OVTH = 3.63V at +25°C with ±3% tolerance over full temp range. |
| Independent UV/OV outputs | Enables separate fault handling - e.g., UV triggers safe shutdown while OV initiates crowbar circuit without shared timing constraints. |
| 20μs fast response | Supports real-time protection of high-speed processors; deasserts UV within 20μs after VCC recovers into window. |
| Manual reset with propagation control | MR input provides deterministic reset initiation with 300ns delay and 4μs pulse immunity - prevents spurious resets from noise. |
| Low 10µA supply current | Reduces standby power in battery-backed systems; ICC remains stable across VCC = 1.0–6.0V and temperature. |
Applications
| Telecom Power Supervision | Industrial PLC I/O Module |
|---|---|
Use Scenario: Monitoring 3.3V auxiliary supply in LTE base station RF front-end. IC Role / Device Role / Timing Role: Window detector asserting UV when DC-DC converter output dips during load transients. Use Value: Prevents RF IC malfunction by triggering immediate processor reset before brownout-induced data corruption occurs. | Use Scenario: Supervising 3.3V logic rail powering isolated digital I/O ASICs in factory automation controller. IC Role / Device Role / Timing Role: Independent UV/OV outputs feed FPGA status registers and hardware watchdog timer. Use Value: Enables dual-fault classification - UV event halts I/O update cycle; OV event disables output drivers to protect field devices. |
| Automotive ADAS Camera ECU | Server BMC Power Sequencing |
Use Scenario: Validating 3.3V imaging sensor interface supply in rear-view camera module. IC Role / Device Role / Timing Role: UV output connected to SoC's WAKEUP# pin; OV output drives fail-safe LED driver. Use Value: Meets AEC-Q100 requirements for -40°C to +125°C operation; 0.7% hysteresis rejects 300ns transients per spec. | Use Scenario: Ensuring clean 3.3V rail for Baseboard Management Controller during server power-up sequence. IC Role / Device Role / Timing Role: UV output held low until VCC stabilizes >2.97V; then releases BMC reset after 20μs debounce. Use Value: Eliminates need for RC-based reset timers; guarantees deterministic BMC initialization timing across temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar window voltage detection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6758UTLD3+T | Same 3.3V ±5% window and pinout, but 100ms min reset timeout instead of 20μs. | Suitable for systems requiring extended reset hold time during slow power ramp-up or noisy environments. | Select MAX6758UTLD3+T only if long timeout is needed; otherwise MAX6758UTLD0+T offers faster recovery. |
| TLV809E33DBZR | Single-channel 3.3V supervisor (UV only), no OV detection, no SET pin, SOT23-3 package. | Lacks overvoltage monitoring and window adjustability; supports only undervoltage reset with 200ms timeout. | Use TLV809E33DBZR only for cost-sensitive UV-only applications where OV detection is unnecessary. |
Compared with MAX6758UTLD3+T and TLV809E33DBZR, the MAX6758UTLD0+T uniquely combines fast 20μs response, independent UV/OV outputs, and ±5% window configurability in a 6-pin SOT23 - enabling precise, dual-fault detection without layout changes or external components.
Availability
MAX6758UTLD0+T is available at Aetrix Electronics and suitable for telecom power supervision, industrial PLC I/O modules, automotive ADAS camera ECUs, and server BMC power sequencing requiring stable component supply across extended temperature ranges.
Supply support for MAX6758UTLD0+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 MAX6758UTLD0+T belongs to the MAX6754–MAX6764 family of low-power window detectors, designed specifically for robust, temperature-stable voltage monitoring in space-constrained, high-reliability embedded systems.
FAQ
What is the exact undervoltage and overvoltage threshold for MAX6758UTLD0+T at +25°C?
The MAX6758UTLD0+T has factory-trimmed thresholds of UVTH = 2.97V and OVTH = 3.63V at +25°C, corresponding to ±5% around its 3.3V nominal VCC. These values are guaranteed over -40°C to +125°C with ±3% total variation, and the 0.7% internal hysteresis prevents chatter near trip points. The MAX6758UTLD0+T achieves this using laser-trimmed resistive dividers referenced to a stable bandgap.
Does MAX6758UTLD0+T require external components for basic operation?
No, the MAX6758UTLD0+T operates with only a 0.1µF VCC bypass capacitor to GND. Its 3.3V nominal threshold and ±5% window are factory-set; SET is tied to GND for fixed operation, and MR has an internal 26kΩ pull-up. No external resistors, capacitors, or dividers are needed for standard 3.3V rail monitoring - simplifying layout and reducing BOM count for the MAX6758UTLD0+T.
How does the UV output behave during VCC brownout and recovery?
The UV output of the MAX6758UTLD0+T asserts high immediately when VCC falls below 2.97V (UVTH), with 20μs propagation delay. Upon recovery, UV deasserts 20μs after VCC rises above 2.97V - no timeout delay is applied. This fast, symmetric response ensures minimal disruption to host processor operation and enables rapid system restart after transient faults on the MAX6758UTLD0+T monitored rail.
Can MAX6758UTLD0+T monitor voltages other than 3.3V?
No - the MAX6758UTLD0+T is factory-trimmed exclusively for 3.3V nominal monitoring (suffix UT). It cannot monitor 5V, 2.5V, or adjustable rails. For other voltages, select variants like MAX6758UKLD0+T (5V), MAX6758UTZD0+T (2.5V), or MAX6764UT-T (externally adjustable). Using MAX6758UTLD0+T outside its 3.3V design point results in incorrect UV/OV thresholds and invalid fault detection.
What is the function of the OV pin on MAX6758UTLD0+T, and how should it be interfaced?
The OV pin on MAX6758UTLD0+T is an active-low open-drain output that asserts low when VCC exceeds 3.63V. It requires an external pull-up resistor (typically 10kΩ to VCC or logic rail) to generate a valid logic-high level. Unlike UV, OV has no timeout - it releases immediately when VCC drops below OVTH. This behavior makes the MAX6758UTLD0+T suitable for fast overvoltage cutoff circuits or crowbar triggers requiring immediate response.
MAX6758UTLD0+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- 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:
- -
MAX6758UTLD0+T FAQ
1.How can I place an order for MAX6758UTLD0+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6758UTLD0+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 MAX6758UTLD0+T reliable?
The price and inventory of MAX6758UTLD0+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6758UTLD0+T is usually 5 days.
3.What payment methods are accepted for MAX6758UTLD0+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6758UTLD0+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6758UTLD0+T?
MAX6758UTLD0+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6758UTLD0+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 MAX6758UTLD0+T?
For technical support, including MAX6758UTLD0+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6758UTLD0+T requirements.
6.How does Aetrix verify that MAX6758UTLD0+T is sourced from the original manufacturer or authorized distributors?
All MAX6758UTLD0+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 MAX6758UTLD0+T meets industry standards.
7.What is the process for return or replacement of MAX6758UTLD0+T?
All MAX6758UTLD0+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6758UTLD0+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 MAX6758UTLD0+T part is unused and in its original packaging.
Return procedure for MAX6758UTLD0+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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