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Analog Devices Inc./Maxim Integrated MAX6757UTTD3+T
- Part No.:
- MAX6757UTTD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6757UTTD3+T.pdf
- Description:
- IC DETECT VOLT WINDOW SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
The MAX6757UTTD3+T from Analog Devices is a low-power, single-supply window voltage detector with independent undervoltage (UV) and overvoltage (OV) open-drain outputs, factory-trimmed 3.3V nominal threshold, ±10% window (2.97V UV / 3.63V OV), 100ms minimum reset timeout, and manual reset input. It operates from 1.0V to 6.0V supply and is used in telecom power supervision and DC-DC converter monitoring.
For engineers reviewing the MAX6757UTTD3+T datasheet, MAX6757UTTD3+T pinout, MAX6757UTTD3+T application, or MAX6757UTTD3+T equivalent, this page delivers verified electrical specs, SOT23-6 package details, thermal resistance data, true functional alternatives, and design-critical timing behavior under temperature and load variation.
Technical Context
The MAX6757UTTD3+T implements dual independent comparators with internal reference and hysteresis (0.7%), configured for fixed 3.3V system monitoring. Its SET pin is tied to VCC to select ±10% window tolerance, and its MR input provides active-low manual reset with 300ns propagation delay and 100ms–320ms timeout recovery.
It features open-drain UV and OV outputs with guaranteed 0.3V VOL at 1.4mA sink, no OV timeout (immediate deassertion), and full operation across –40°C to +125°C. Supply current is 13µA typical at 3.6V, and outputs remain valid down to VCC = 1.0V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal VCC Threshold | 3.3V - factory-trimmed for standard I/O rail monitoring |
| Undervoltage Threshold | 2.97V (min) - asserts UV output when VCC falls below this level |
| Overvoltage Threshold | 3.63V (max) - asserts OV output when VCC exceeds this level |
| Window Tolerance | ±10% - set by connecting SET pin to VCC |
| Reset Timeout Period | 100ms (min) - ensures stable microprocessor reset after brownout recovery |
| Supply Current | 13µA (typ at 3.6V) - enables battery-backed or ultra-low-power systems |
| Operating Temp Range | –40°C to +125°C - qualified for automotive and industrial environments |
Pinout & Package
MAX6757UTTD3+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 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; requires 0.1µF bypass to GND |
| 2 - GND | Ground Reference | Common return path for all internal circuitry and output sinks |
| 3 - MR | Active-Low Manual Reset | Drives UV and OV low when asserted; internally pulled up to VCC via 26kΩ |
| 4 - UV | Open-Drain Undervoltage Output | Asserts low when VCC < 2.97V; requires external pullup for logic-level interface |
| 5 - OV | Open-Drain Overvoltage Output | Asserts low when VCC > 3.63V; no timeout - immediate release on threshold exit |
| 6 - SET | Window Tolerance Select | Tied to VCC to configure ±10% window; GND = ±5%, VCC/2 = ±15% |
Key Features
| Feature | Design Value |
|---|---|
| Independent UV/OV outputs | Enables separate fault signaling for brownout vs. overvoltage events in safety-critical systems |
| 100ms minimum timeout | Guarantees microprocessor reset duration meets ARM/Cortex boot requirements |
| 10µA supply current | Supports >10-year battery life in always-on remote sensor nodes |
| –40°C to +125°C operation | Validated for under-hood automotive and base station power modules |
| Immunity to 300ns transients | Rejects switching noise from adjacent DC-DC converters without false triggering |
Applications
| Telecom Power Supervision | DC-DC Converter Monitoring |
|---|---|
Use Scenario: Monitoring 3.3V bias rails in optical line terminals where undervoltage must trigger graceful shutdown before data corruption. IC Role / Device Role / Timing Role: Window detector asserting independent UV/OV flags to FPGA supervisor logic. Use Value: Prevents packet loss during AC brownouts by initiating controlled link reinitialization within 100ms. | Use Scenario: Verifying output stability of isolated 3.3V flyback converters powering Ethernet PHYs. IC Role / Device Role / Timing Role: Real-time voltage guardbanding with immediate OV response and delayed UV recovery. Use Value: Detects transformer saturation or feedback loop failure before downstream IC damage occurs. |
| Industrial PLC I/O Modules | Automotive Body Control Units |
Use Scenario: Supervising 3.3V logic supply in DIN-rail mounted controllers exposed to wide ambient swings. IC Role / Device Role / Timing Role: High-temp-stable voltage monitor with manual reset for field-service recovery. Use Value: Ensures deterministic firmware restart after voltage sag caused by motor startup surges. | Use Scenario: Monitoring 3.3V domain in BCMs where overvoltage may result from alternator regulation faults. IC Role / Device Role / Timing Role: Fail-safe OV latch initiator (via external logic) for fuse control circuits. Use Value: Triggers SCR-based power cutoff within 20µs of overvoltage detection to protect CAN transceivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar window voltage monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV809E33DBZR | Single combined RESET output (UV+OV), no independent OV/UV pins, ±2% accuracy, 200ms timeout | Lacks separate fault reporting; unsuitable for systems requiring distinct UV/OV interrupts | Select when cost-sensitive designs accept merged reset signaling and tighter threshold tolerance |
| ADM6315-33ARTZ-RL | Push-pull RESET output only, no OV function, ±2.5% threshold, 200ms timeout, no SET pin | Provides basic undervoltage reset only; cannot detect overvoltage conditions | Choose when overvoltage protection is handled externally or not required |
Compared with TLV809E33DBZR and ADM6315-33ARTZ-RL, the MAX6757UTTD3+T uniquely delivers independent open-drain UV/OV outputs with factory-set 3.3V thresholds and user-selectable ±10% window-enabling precise fault isolation in dual-failure-mode systems without additional logic.
Availability
MAX6757UTTD3+T is available at Aetrix Electronics and suitable for telecom power supervision, DC-DC converter monitoring, and industrial PLC I/O modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6757UTTD3+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 MAX6757UTTD3+T belongs to the MAX6754–MAX6764 family of low-power window detectors, designed specifically for reliable power-supply monitoring in harsh environments where independent UV/OV signaling and extended temperature operation are critical.
FAQ
What is the exact undervoltage and overvoltage threshold range for MAX6757UTTD3+T?
The MAX6757UTTD3+T has a factory-trimmed 3.3V nominal threshold with ±10% window selected via SET = VCC. Its guaranteed undervoltage threshold is 2.97V (min) and overvoltage threshold is 3.63V (max) across –40°C to +125°C. These values are specified in the Electrical Characteristics table under "T, 3.3V" row with SET = VCC condition.
Does MAX6757UTTD3+T support operation below 1.4V supply voltage?
Yes, the MAX6757UTTD3+T functions with VCC as low as 1.0V, though voltage monitoring requires VCC ≥ 1.4V per datasheet Note 2. Outputs remain asserted in correct logic state down to 1.0V, enabling brownout holdover during deep supply sags where the host system remains partially operational.
What is the purpose of the SET pin on MAX6757UTTD3+T and how should it be connected?
The SET pin configures the window tolerance: connect SET to GND for ±5%, to VCC for ±10%, or bias to VCC/2 for ±15%. For MAX6757UTTD3+T, SET is tied to VCC to achieve the ±10% window (2.97V/3.63V). This connection is fixed per part number suffix "T" and must match the intended monitoring margin.
Can MAX6757UTTD3+T be used in automotive applications?
Yes - the MAX6757UTTD3+T is specified for –40°C to +125°C operation and supports automotive-grade reliability requirements. While only /V suffix parts are AEC-Q100 qualified, the MAX6757UTTD3+T's thermal performance, transient immunity (300ns), and wide supply range make it suitable for non-safety-critical body electronics and infotainment power supervision.
What is the maximum sink current capability of the UV and OV outputs on MAX6757UTTD3+T?
The UV and OV outputs of MAX6757UTTD3+T are open-drain and guarantee VOL ≤ 0.3V with ISINK = 1.4mA at VCC ≥ 1.98V, 2.0mA at VCC ≥ 2.75V, and 3.0mA at VCC ≥ 3.63V. This allows direct interfacing with 3.3V logic families using standard 4.7kΩ pullups without level-shifting.
MAX6757UTTD3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 3.3V
- Output:
- Open Drain, Push-Pull
- Reset:
- Active Low
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6757UTTD3+T FAQ
1.How can I place an order for MAX6757UTTD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6757UTTD3+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 MAX6757UTTD3+T reliable?
The price and inventory of MAX6757UTTD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6757UTTD3+T is usually 5 days.
3.What payment methods are accepted for MAX6757UTTD3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6757UTTD3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6757UTTD3+T?
MAX6757UTTD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6757UTTD3+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 MAX6757UTTD3+T?
For technical support, including MAX6757UTTD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6757UTTD3+T requirements.
6.How does Aetrix verify that MAX6757UTTD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6757UTTD3+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 MAX6757UTTD3+T meets industry standards.
7.What is the process for return or replacement of MAX6757UTTD3+T?
All MAX6757UTTD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6757UTTD3+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 MAX6757UTTD3+T part is unused and in its original packaging.
Return procedure for MAX6757UTTD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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