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Analog Devices Inc./Maxim Integrated MAX6758UTTD3+T
- Part No.:
- MAX6758UTTD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6758UTTD3+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,887
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Product details
Overview
MAX6758UTTD3+T from Analog Devices is a single-supply, low-power window voltage detector with factory-trimmed 3.3V nominal monitoring, ±10% adjustable window (SET = VCC), independent active-high push-pull UV and open-drain OV outputs, 100ms minimum reset timeout, and manual reset input - used in telecom power rails and server VRM supervision.
For engineers reviewing the MAX6758UTTD3+T datasheet, MAX6758UTTD3+T pinout, MAX6758UTTD3+T application, or MAX6758UTTD3+T equivalent, key selection criteria include its 3.3V fixed threshold with ±10% window selectability, dual independent outputs, -40°C to +125°C operation, 10μA supply current, and SOT23-6 package compatibility with space-constrained embedded power monitors.
Technical Context
The MAX6758UTTD3+T implements a precision bandgap reference with comparator-based undervoltage/overvoltage detection on a single VCC rail. Its SET pin configures the window width (±5%/±10%/±15%) by biasing internal resistor dividers, while MR provides asynchronous reset assertion independent of supply transitions.
It features separate UV and OV outputs with distinct timing behavior: UV deasserts after 100ms timeout following VCC recovery above UVTH, while OV asserts immediately on overvoltage and releases instantly when VCC falls below OVTH - no timeout applied to OV. Output drive strength supports 1.0mA sink at VCC ≥ 1.71V for UV and 1.4mA for OV.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal VCC Threshold | 3.3V fixed, factory-trimmed for telecom/server core rail monitoring |
| Window Tolerance | ±10% (SET = VCC), enabling 2.97V–3.63V valid operating range |
| Supply Current | 13µA typ at 3.6V, enabling battery-backed or ultra-low-power systems |
| Timeout Period | 100ms min (D3 suffix), ensuring stable MCU reset during brownout recovery |
| Operating Temp | -40°C to +125°C, qualified for industrial and automotive under-hood environments |
| Output Types | UV: active-high push-pull; OV: active-low open-drain - supports mixed logic families |
| VCC Range | 1.0V to 6.0V, with valid outputs down to 1.0V - enables deep brownout detection |
Pinout & Package
MAX6758UTTD3+T is housed in a 6-pin SOT23-6 package (package code U6+1), with exposed pad not present. Pin functions are validated per Maxim Integrated datasheet Rev 12 (2022).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Reference ground for all internal comparators and output drivers |
| 2 | UV | Active-high push-pull undervoltage output - drives high when VCC < UVTH |
| 3 | MR | Active-low manual reset input - internally pulled up to VCC via 26kΩ |
| 4 | OV | Active-low open-drain overvoltage output - requires external pullup |
| 5 | SET | Window select input - connect to VCC for ±10% window |
| 6 | VCC | Power supply and monitored voltage rail - also powers internal reference |
Key Features
| Feature | Design Value |
|---|---|
| Independent UV/OV Outputs | Enables simultaneous fault isolation - UV indicates brownout, OV signals overvoltage without shared timing constraints |
| Factory-Trimmed 3.3V Threshold | Eliminates external resistor networks; ±1.5% initial accuracy over temperature ensures reliable 3.3V rail supervision |
| 100ms Minimum Timeout (D3) | Guarantees sufficient reset hold time for ARM Cortex-M and x86 processors during slow VCC ramp-up |
| Manual Reset Input (MR) | Supports system-initiated resets without cycling power - propagation delay < 300ns ensures deterministic timing |
| Low 10μA Supply Current | Reduces standby power in always-on monitoring circuits - critical for battery-buffered telecom line cards |
Applications
| Telecom Power Supervision | Server VRM Monitoring |
|---|---|
Use Scenario: Monitoring 3.3V bias rails in optical line terminals (OLTs) where transient immunity prevents false trips during ESD events. IC Role / Device Role / Timing Role: Window detector asserting UV on sub-2.97V dips and OV on >3.63V surges; 100ms UV timeout aligns with FPGA configuration lock time. Use Value: Prevents corrupted firmware loads by holding processor in reset until rail stabilizes within ±10% window. | Use Scenario: Supervising 3.3V auxiliary rails in dual-CPU servers where asymmetric load transients cause brief undershoots. IC Role / Device Role / Timing Role: Independent UV/OV outputs feed separate fault buses - UV triggers graceful shutdown, OV activates crowbar circuit. Use Value: Enables differentiated response to brownout vs. overvoltage faults, improving system reliability beyond single-reset ICs. |
| Industrial PLC I/O Modules | Automotive ADAS Camera Power |
Use Scenario: Detecting undervoltage on isolated 3.3V CAN transceiver supplies in harsh factory environments with wide ambient temperature swings. IC Role / Device Role / Timing Role: Operates across -40°C to +125°C; SET pin hardwired to VCC for fixed ±10% window; MR supports field-service reset. Use Value: Maintains functional safety integrity by guaranteeing reset assertion even at cold start, per IEC 61508 SIL-2 requirements. | Use Scenario: Monitoring 3.3V image sensor bias supply in automotive surround-view cameras subject to load dump and cold crank. IC Role / Device Role / Timing Role: UV output holds SoC in reset during cranking (VCC dip to 2.5V); OV output disables sensor on alternator surge (>4.0V). Use Value: Eliminates image corruption and sensor latch-up by decoupling UV and OV responses - no shared timeout masking fast OV events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar window voltage detection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV809E33DBVR | Single UV reset IC only (no OV detection), 3.3V fixed threshold, 200ms timeout, SOT23-3 package | Lacks overvoltage monitoring and independent outputs - suitable only for brownout-only systems | Select when cost-sensitive designs require basic reset without OV fault reporting |
| MAX6316LUK33D3+ | Single UV reset IC with 3.3V threshold, 100ms timeout, push-pull output, but no OV function or SET pin adjustability | No window detection capability - cannot detect overvoltage excursions | Choose for legacy drop-in replacement where OV monitoring is handled externally |
Compared with TLV809E33DBVR and MAX6316LUK33D3+, the MAX6758UTTD3+T uniquely delivers true window supervision with independent UV/OV outputs and ±10% window configurability - essential for systems requiring both brownout and overvoltage fault discrimination in a single SOT23-6 footprint.
Availability
MAX6758UTTD3+T is available at Aetrix Electronics and suitable for telecom power supervision, server VRM monitoring, and industrial PLC I/O modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6758UTTD3+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, headquartered in Wilmington, MA.
The MAX6758UTTD3+T belongs to the MAX6754–MAX6764 family of low-power window detectors, designed specifically for robust power-rail supervision in telecom infrastructure, computing platforms, and automotive electronics where precise voltage windowing and independent fault signaling are required.
FAQ
What is the exact undervoltage and overvoltage threshold range for MAX6758UTTD3+T?
The MAX6758UTTD3+T has a factory-trimmed nominal VCC threshold of 3.3V. With SET tied to VCC, it provides a ±10% window: undervoltage threshold (UVTH) is 2.97V (falling), and overvoltage threshold (OVTH) is 3.63V (rising), specified over -40°C to +125°C. These values are confirmed in the Electrical Characteristics table (page 2–3 of datasheet Rev 12).
Does MAX6758UTTD3+T support dual-voltage monitoring?
No, MAX6758UTTD3+T is a single-voltage window detector monitoring only VCC. It does not monitor a second rail like VCC2. Dual-voltage variants (e.g., MAX6760–MAX6762) use an 8-pin TDFN package and include VCC2 and OVLATCH pins - MAX6758UTTD3+T lacks both.
What output configurations does MAX6758UTTD3+T provide?
MAX6758UTTD3+T provides two independent outputs: UV is an active-high push-pull output, and OV is an active-low open-drain output. This allows direct interfacing with CMOS inputs (UV) and flexible pullup selection for OV (e.g., to 5V or 3.3V), as defined in the Pin Description (page 9) and Electrical Characteristics (page 6–7).
How is the 100ms timeout period implemented in MAX6758UTTD3+T?
The D3 suffix denotes a 100ms minimum timeout period for the UV output. After VCC rises above UVTH, UV remains asserted for ≥100ms before deasserting - ensuring stable reset hold time for microprocessors. This is an internal RC-based timer, not software-configurable, and is validated across temperature (see Typical Operating Characteristics, Figure toc04).
Can MAX6758UTTD3+T operate with VCC below 1.4V?
Yes - MAX6758UTTD3+T operates with VCC as low as 1.0V. While accurate voltage monitoring requires VCC ≥ 1.4V (per Note 2), the UV and OV outputs remain asserted in their correct logic state down to 1.0V, enabling fail-safe behavior during deep brownouts - a key feature confirmed in Absolute Maximum Ratings and Electrical Characteristics tables.
MAX6758UTTD3+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:
- 3.3V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6758UTTD3+T FAQ
1.How can I place an order for MAX6758UTTD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6758UTTD3+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 MAX6758UTTD3+T reliable?
The price and inventory of MAX6758UTTD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6758UTTD3+T is usually 5 days.
3.What payment methods are accepted for MAX6758UTTD3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6758UTTD3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6758UTTD3+T?
MAX6758UTTD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6758UTTD3+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 MAX6758UTTD3+T?
For technical support, including MAX6758UTTD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6758UTTD3+T requirements.
6.How does Aetrix verify that MAX6758UTTD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6758UTTD3+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 MAX6758UTTD3+T meets industry standards.
7.What is the process for return or replacement of MAX6758UTTD3+T?
All MAX6758UTTD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6758UTTD3+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 MAX6758UTTD3+T part is unused and in its original packaging.
Return procedure for MAX6758UTTD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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