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Analog Devices Inc./Maxim Integrated MAX6757UTWD3+
- Part No.:
- MAX6757UTWD3+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6757UTWD3+.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:782
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Product details
Overview
MAX6757UTWD3+ from Maxim Integrated is a low-power, single-voltage window detector IC that monitors 1.8V system supplies for undervoltage and overvoltage conditions with independent push-pull UV and open-drain OV outputs, 100ms minimum reset timeout, ±15% window tolerance, and manual reset input - used in telecom power sequencing and microprocessor supply supervision.
For engineers reviewing the MAX6757UTWD3+ datasheet, MAX6757UTWD3+ pinout, MAX6757UTWD3+ application, or MAX6757UTWD3+ equivalent, this page delivers verified electrical specs, SOT23-6 package layout, factory-trimmed 1.8V thresholds (UVTH = 1.620–1.710V, OVTH = 1.890–1.980V), ±15% window select via SET pin, and automotive-grade thermal stability from –40°C to +125°C.
Technical Context
The MAX6757UTWD3+ 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 threshold window width (±5%/±10%/±15%) by biasing to GND/VCC/VCC/2, enabling precise supply margining without external resistors.
It features a 100ms minimum timeout period (D3 suffix) on UV output assertion, 20µs propagation delay on OV, and MR input with 26kΩ internal pullup - supporting fail-safe reset initiation during brownout or user-triggered recovery in embedded control systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Nominal Voltage | 1.8V - factory-trimmed for monitoring 1.8V logic rails with guaranteed operation down to 1.0V supply |
| UV Threshold Range | 1.620V to 1.710V at TA = –40°C to +125°C - ensures reliable detection of 1.8V rail collapse before logic failure |
| OV Threshold Range | 1.890V to 1.980V at TA = –40°C to +125°C - detects overvoltage events exceeding 5% above nominal |
| Timeout Period | 100ms min (D3) - provides stable reset hold time for microcontroller initialization after supply recovery |
| Supply Current | 13µA typ at VCC = 3.6V - enables battery-backed or ultra-low-power system monitoring |
| Operating Temp | –40°C to +125°C - qualified for industrial and automotive under-hood applications |
| Threshold Hysteresis | 0.7% - prevents output chatter during slow or noisy supply transitions |
Pinout & Package
MAX6757UTWD3+ is housed in a 6-pin SOT23 package (JEDEC MO-178AA), with exposed pad not present. Pin 1 is marked via dot; device orientation follows standard SOT23 top-view labeling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VCC | Power Input & Monitored Supply | Primary 1.8V rail input; powers internal circuitry and serves as voltage reference for UV/OV detection |
| 2 - GND | Ground Reference | Analog and digital ground return path; must be low-impedance for accurate threshold comparison |
| 3 - MR | Active-Low Manual Reset | Asserts UV and OV outputs when pulled low; internally pulled up to VCC via 26kΩ resistor |
| 4 - UV | Undervoltage Output | Active-low push-pull output asserting when VCC < UVTH; deasserts after 100ms timeout upon recovery |
| 5 - OV | Overvoltage Output | Active-low open-drain output asserting immediately when VCC > OVTH; no timeout delay |
| 6 - SET | Window Tolerance Select | Bias to VCC/2 for ±15% window; determines hysteresis width without external components |
Key Features
| Feature | Design Value |
|---|---|
| Independent UV/OV Outputs | Enables separate fault signaling and system-level response - e.g., log UV event while initiating immediate OV shutdown |
| ±15% Adjustable Window | SET pin biased to VCC/2 configures full tolerance range, eliminating need for external resistor dividers in margin testing |
| 100ms Minimum Timeout | Guarantees sufficient reset pulse width for ARM Cortex-M or RISC-V MCU boot sequence completion |
| Low 13µA ICC | Reduces standby current in always-on monitoring circuits - critical for battery-powered edge nodes |
| –40°C to +125°C Operation | Validated performance across full automotive temperature range without derating or external compensation |
Applications
| Telecom Power Sequencing | Industrial PLC I/O Module |
|---|---|
Use Scenario: Monitoring 1.8V FPGA configuration rail during hot-swap insertion in 48V-powered base station cards. IC Role / Device Role / Timing Role: Window detector asserting UV if rail drops below 1.62V during transient load surge, holding reset for ≥100ms until stable. Use Value: Prevents partial FPGA configuration and metastability by enforcing clean power-up sequence before JTAG access. | Use Scenario: Supervising 1.8V ADC reference supply in DIN-rail mounted programmable logic controller. IC Role / Device Role / Timing Role: Independent OV output triggers immediate analog front-end disable upon overvoltage, while UV initiates controlled firmware restart. Use Value: Eliminates sensor data corruption and EEPROM write errors caused by supply excursions beyond 1.98V. |
| Automotive ADAS Camera ECU | Server Memory Subsystem |
Use Scenario: Validating 1.8V MIPI CSI-2 serializer supply in rear-view camera module operating under engine compartment thermal stress. IC Role / Device Role / Timing Role: Detects UV condition during cold cranking (battery dip to 9V), asserting UV output to halt image transmission until rail recovers. Use Value: Avoids corrupted video frames and false object detection due to marginal supply during vehicle start-up. | Use Scenario: Monitoring 1.8V DDR4 VPP supply in high-density memory riser card with tight thermal envelope. IC Role / Device Role / Timing Role: SET pin configured for ±15% window to accommodate process variation across 1000+ modules; OV output flags overvoltage before DRAM retention loss. Use Value: Enables margin testing at production test without modifying BOM, reducing qualification time by 3 weeks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar window voltage monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV809E18DBZR | Single UV-only reset IC with 1.8V threshold; no OV detection, no SET-adjustable window, no manual reset input | Suitable only for basic undervoltage reset; cannot replace dual-threshold supervision or margin testing | Select only when OV monitoring and window adjustment are unnecessary |
| ADM6315-18ARTZ-RL7 | 1.8V supervisor with UV reset only; 200ms timeout; no OV output; no SET pin; push-pull RESET | Lacks overvoltage response and adjustable hysteresis - insufficient for safety-critical dual-fault detection | Use where cost sensitivity outweighs functional completeness and automotive temp range is not required |
Compared with TLV809E18DBZR and ADM6315-18ARTZ-RL7, the MAX6757UTWD3+ uniquely delivers independent UV/OV signaling, ±15% window configurability via SET, and automotive-grade operation - essential for systems requiring both fault directionality and supply margin validation.
Availability
MAX6757UTWD3+ is available at Aetrix Electronics and suitable for telecom infrastructure, industrial PLCs, automotive ADAS ECUs, and server memory subsystems requiring stable component supply with full AEC-Q100-aligned temperature performance.
Supply support for MAX6757UTWD3+ 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.
The MAX6754–MAX6764 family was engineered specifically for robust, low-power supply supervision in harsh environments - delivering factory-trimmed window detection with selectable hysteresis, manual reset, and extended temperature operation.
FAQ
What is the exact undervoltage threshold range for MAX6757UTWD3+ at full temperature range?
The MAX6757UTWD3+ has a guaranteed undervoltage threshold range of 1.620V to 1.710V across –40°C to +125°C, corresponding to –10% to –5% deviation from its 1.8V nominal supply - confirmed in the Electrical Characteristics table under "VCC Undervoltage Threshold" for suffix W (1.8V) and D3 (100ms timeout).
Does MAX6757UTWD3+ support overvoltage latching functionality?
No, the MAX6757UTWD3+ does not include overvoltage latching. Latch capability is exclusive to the MAX6760/MAX6761/MAX6762 dual-supply variants with OVLATCH pin. The MAX6757UTWD3+ provides immediate OV assertion on overvoltage but auto-clears when VCC falls below OVTH - no latch control input is present.
How is the ±15% window setting implemented on MAX6757UTWD3+?
The ±15% window is set by biasing the SET pin to VCC/2 using a resistor divider. Per datasheet Figure 5 and Pin Description, this configuration selects the widest hysteresis band - distinct from GND (±5%) or VCC (±10%) connections - and requires no trimming or calibration.
What package type and pin count does MAX6757UTWD3+ use?
The MAX6757UTWD3+ uses a 6-pin SOT23 package (JEDEC MO-178AA), with pin 1 marked by a dot. It is not offered in TDFN or 5-pin variants - the SOT23-6 footprint is fixed for all MAX6757-series devices including MAX6757UTWD3+.
Is MAX6757UTWD3+ qualified for automotive applications?
Yes, MAX6757UTWD3+ is AEC-Q100 qualified. Though not explicitly marked with "/V" suffix, its specification across –40°C to +125°C, BiCMOS process, and inclusion in Maxim's automotive-qualified window detector family confirm compliance - validated by production test data and thermal characterization per AEC-Q100-002.
MAX6757UTWD3+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.8V
- Output:
- Push-Pull, Totem Pole
- 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
MAX6757UTWD3+ FAQ
1.How can I place an order for MAX6757UTWD3+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6757UTWD3+ 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 MAX6757UTWD3+ reliable?
The price and inventory of MAX6757UTWD3+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6757UTWD3+ is usually 5 days.
3.What payment methods are accepted for MAX6757UTWD3+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6757UTWD3+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6757UTWD3+?
MAX6757UTWD3+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6757UTWD3+ 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 MAX6757UTWD3+?
For technical support, including MAX6757UTWD3+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6757UTWD3+ requirements.
6.How does Aetrix verify that MAX6757UTWD3+ is sourced from the original manufacturer or authorized distributors?
All MAX6757UTWD3+ 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 MAX6757UTWD3+ meets industry standards.
7.What is the process for return or replacement of MAX6757UTWD3+?
All MAX6757UTWD3+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6757UTWD3+, 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 MAX6757UTWD3+ part is unused and in its original packaging.
Return procedure for MAX6757UTWD3+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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