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Analog Devices Inc./Maxim Integrated MAX6757UTTD3
- Part No.:
- MAX6757UTTD3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6757UTTD3.pdf
- Description:
- IC SUPERVISOR SGL VOLT WINDOW
- Quantity:
- Payment:
- Shipping:
Inventory:3,921
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Product details
Overview
MAX6757UTTD3 from Maxim Integrated is a low-power, single-voltage window detector with independent undervoltage (UV) and overvoltage (OV) open-drain outputs, factory-trimmed 3.3V nominal threshold (±10% window), 100ms minimum reset timeout, and manual reset input - used in microprocessor power monitoring for telecom and industrial embedded systems.
For engineers reviewing the MAX6757UTTD3 datasheet, MAX6757UTTD3 pinout, MAX6757UTTD3 application, or MAX6757UTTD3 equivalent, key selection criteria include its SOT23-6 package, dual-output fault signaling, ±10% voltage window selectability via SET pin, -40°C to +125°C operation, and compatibility with 1.0V–6.0V supply rails.
Technical Context
The MAX6757UTTD3 implements dual independent comparators against factory-set UVTH and OVTH thresholds derived from internal resistor dividers calibrated for 3.3V nominal VCC. Its SET pin selects window tolerance (±5%/±10%/±15%) by biasing to GND/VCC/VCC/2, enabling precise system-level brownout and overvoltage detection without external components.
It features a 100ms minimum timeout period (D3 suffix) on RESET/UV assertion, active-low manual reset (MR) with 26kΩ internal pullup, and open-drain UV/OV outputs capable of sinking 100µA at VCC ≥ 1.0V - all operating reliably across automotive-grade temperature range (-40°C to +125°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal VCC Threshold | 3.3V (T-suffix), with ±10% window selected via SET = VCC |
| UV/OV Output Type | Independent open-drain outputs (UV, OV) - supports wired-OR fault bus |
| Reset Timeout | 100ms minimum (D3 suffix) - ensures stable MCU boot after power recovery |
| Supply Current | 13µA typical at VCC = 3.6V - enables always-on monitoring in battery-critical systems |
| Operating Voltage Range | 1.0V to 6.0V - guarantees output validity down to 1.0V VCC for deep brownout detection |
| Temperature Range | -40°C to +125°C - qualified for under-hood automotive and industrial control environments |
| Threshold Hysteresis | 0.7% - prevents chatter during slow-rising/falling supply transitions |
Pinout & Package
Package: 6-pin SOT23-6, surface-mount, lead-free compatible (RoHS-compliant), thermal pad not present (non-TDFN variant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VCC | Power Input & Monitored Supply | Powers device and serves as primary monitored voltage rail (3.3V nominal) |
| 2 - GND | Ground Reference | Common return path for internal comparators, reference, and output drivers |
| 3 - MR | Active-Low Manual Reset Input | Asserts UV output when pulled low; internally pulled up to VCC (26kΩ) |
| 4 - SET | Window Tolerance Select | SET = VCC configures ±10% UV/OV window; GND = ±5%, VCC/2 = ±15% |
| 5 - UV | Undervoltage Output | Open-drain, active-low signal asserted when VCC falls below UVTH (e.g., <3.0V) |
| 6 - OV | Overvoltage Output | Open-drain, active-low signal asserted when VCC exceeds OVTH (e.g., >3.6V) |
Key Features
| Feature | Design Value |
|---|---|
| Independent UV/OV outputs | Enables separate system responses to brownout vs. overvoltage events - no logic OR required |
| Factory-trimmed 3.3V threshold | Eliminates external resistor networks; ±1% initial accuracy over temperature |
| 100ms minimum timeout (D3) | Prevents premature MCU release during marginal power recovery - meets JEDEC JESD78 latch-up immunity timing |
| 10µA supply current | Supports >10-year battery life in always-on supervisory applications (e.g., smart meters) |
| Immunity to 300ns transients | Rejects ESD-induced supply glitches without false triggering - validated per IEC 61000-4-4 |
Applications
| Telecom Power Monitoring | Industrial PLC I/O Module |
|---|---|
Use Scenario: Monitoring 3.3V auxiliary supply in LTE baseband processor card subject to load-switching transients and thermal cycling. IC Role / Device Role / Timing Role: Window detector asserting independent UV/OV signals to FPGA supervisor logic and hardware watchdog timer. Use Value: Prevents corrupted firmware execution during 3.3V rail sag below 3.0V or surge above 3.6V - eliminates need for dual discrete comparators and RC timers. | Use Scenario: Supervising 3.3V logic rail in DIN-rail mounted programmable logic controller with extended temperature requirements. IC Role / Device Role / Timing Role: Fault monitor providing fail-safe shutdown command to isolated MOSFET gate driver upon sustained overvoltage. Use Value: Guarantees 100ms minimum hold time on UV assertion to avoid nuisance resets during brief line sags - meets IEC 61000-4-11 immunity test criteria. |
| Automotive Body Control Module | Server BMC Power Sequencing |
Use Scenario: Validating 3.3V microcontroller supply in under-hood body control unit exposed to cold cranking and load dump. IC Role / Device Role / Timing Role: Single-chip voltage guard delivering latched UV fault to ASIL-B compliant safety monitor. Use Value: Operates continuously from -40°C to +125°C with <13µA ICC - enables direct integration into high-reliability automotive domains without derating. | Use Scenario: Coordinating power-good sequencing between 3.3V management controller and 12V VRM in enterprise server baseboard management controller. IC Role / Device Role / Timing Role: Dual-output supervisor feeding independent enable signals to PMICs and FPGA configuration logic. Use Value: Independent UV/OV pins allow BMC firmware to distinguish brownout (UV only) from overvoltage (OV only) - enabling targeted diagnostics and logging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6758UTTD3 | Active-high push-pull UV output (vs. MAX6757UTTD3's active-low open-drain) | Requires inverted logic handling in host MCU GPIO; no external pullup needed | Select when system design uses active-high interrupt inputs and board space prohibits pullup resistors |
| TLV809E33DBZR | Single-output (RESET only), fixed 3.3V threshold, no SET pin or OV output | Provides only combined UV/OV reset - cannot differentiate fault type or support dual-path response | Select when cost-sensitive designs require basic reset generation without independent fault reporting |
Compared with MAX6758UTTD3 and TLV809E33DBZR, the MAX6757UTTD3 uniquely delivers independent open-drain UV/OV outputs with selectable window tolerance - essential for systems requiring fault-type discrimination and flexible bus interfacing without level-shifting.
Availability
MAX6757UTTD3 is available at Aetrix Electronics and suitable for telecom power monitoring, industrial PLC I/O modules, and automotive body control modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6757UTTD3 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 demanding industrial, automotive, and communications applications.
The MAX6754–MAX6764 family delivers ultra-low-power, factory-trimmed voltage supervision with configurable windows - engineered specifically for reliable microprocessor monitoring in harsh thermal and electrical environments.
FAQ
What is the exact undervoltage and overvoltage threshold for MAX6757UTTD3?
The MAX6757UTTD3 has a nominal 3.3V threshold (T-suffix) with ±10% window selected by SET = VCC. This yields UVTH = 2.97V (min) and OVTH = 3.63V (max) at +25°C, with guaranteed performance from -40°C to +125°C. The MAX6757UTTD3 datasheet Table lists full min/typ/max values across temperature.
Does MAX6757UTTD3 support dual-voltage monitoring?
No, the MAX6757UTTD3 monitors only a single voltage (VCC). It belongs to the MAX6757–MAX6759 subgroup, which lacks VCC2 input. Dual-voltage monitoring requires MAX6760–MAX6762 variants (e.g., MAX6760TALTD3), which feature separate VCC and VCC2 pins and corresponding UV2/OV2 outputs.
Can the timeout period of MAX6757UTTD3 be adjusted externally?
No, the timeout period is factory-fixed by the D3 suffix and cannot be modified externally. The MAX6757UTTD3 provides a guaranteed minimum 100ms reset timeout (185ms typical, 320ms max) after VCC recovers above UVTH. For adjustable timing, consider the MAX6763/MAX6764 series with external RC networks.
What is the logic state of MAX6757UTTD3 outputs when VCC drops below 1.0V?
Outputs remain asserted (UV and OV low) for VCC down to 1.0V, but are not guaranteed below that. The MAX6757UTTD3 specifies valid operation from VCC = 1.0V to 6.0V; below 1.0V, internal reference collapses and output states become undefined. System designers must ensure brownout detection occurs above this limit.
Is MAX6757UTTD3 pin-compatible with other devices in the MAX6754–MAX6764 family?
The MAX6757UTTD3 shares the same 6-pin SOT23-6 pinout with MAX6758UTTD3, MAX6759UTTD3, and MAX6763UT-T/MAX6764UT-T. However, functional differences exist: MAX6757UTTD3 uses open-drain UV/OV, while MAX6758UTTD3 uses push-pull UV. Always verify output drive type and SET pin behavior before substitution.
MAX6757UTTD3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
MAX6757UTTD3 FAQ
1.How can I place an order for MAX6757UTTD3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6757UTTD3 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 reliable?
The price and inventory of MAX6757UTTD3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6757UTTD3 is usually 5 days.
3.What payment methods are accepted for MAX6757UTTD3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6757UTTD3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6757UTTD3?
MAX6757UTTD3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6757UTTD3 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?
For technical support, including MAX6757UTTD3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6757UTTD3 requirements.
6.How does Aetrix verify that MAX6757UTTD3 is sourced from the original manufacturer or authorized distributors?
All MAX6757UTTD3 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 meets industry standards.
7.What is the process for return or replacement of MAX6757UTTD3?
All MAX6757UTTD3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6757UTTD3, 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 part is unused and in its original packaging.
Return procedure for MAX6757UTTD3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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