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Analog Devices Inc./Maxim Integrated MAX6757UTRD0
- Part No.:
- MAX6757UTRD0
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6757UTRD0.pdf
- Description:
- IC SUPERVISOR SGL VOLT WINDOW
- Quantity:
- Payment:
- Shipping:
Inventory:2,240
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Product details
Overview
MAX6757UTRD0 from Maxim Integrated is a low-power, single-voltage window detector IC that monitors system supply voltage (VCC) for undervoltage and overvoltage conditions with independent push-pull UV and open-drain OV outputs, ±10% factory-trimmed thresholds (3.3V nominal), 100ms minimum reset timeout, and manual reset input - used in microprocessor power supervision for telecom and industrial embedded systems.
For engineers reviewing the MAX6757UTRD0 datasheet, MAX6757UTRD0 pinout, MAX6757UTRD0 application, or MAX6757UTRD0 equivalent, this page delivers verified electrical specs, SOT23-6 package mapping, functional role in power-rail monitoring, and validated alternative options for voltage supervisor selection.
Technical Context
The MAX6757UTRD0 implements dual independent comparators with internal reference and hysteresis (0.7%) to detect VCC falling below UVTH (2.97V) or rising above OVTH (3.63V) at TA = -40°C to +125°C. It uses a SET pin biased to VCC to configure ±10% window width and asserts UV low / OV low upon threshold violation without timeout on OV.
It features a 26kΩ internal MR pullup, 20µs propagation delay on MR-to-UV assertion, and guaranteed output validity down to VCC = 1.0V. The device draws only 13µA typical supply current at VCC = 3.6V and supports operation with VCC as low as 1.0V while maintaining correct logic states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Operating Range | 1.0V to 6.0V - enables use with ultra-low-voltage rails (e.g., 1.2V, 1.5V, 1.8V) while maintaining valid outputs |
| UV Threshold (VCC = 3.3V) | 2.97V (min) to 3.135V (max), falling edge - ensures reliable brownout detection before microprocessor malfunction |
| OV Threshold (VCC = 3.3V) | 3.465V (min) to 3.63V (max), rising edge - prevents damage from overvoltage transients on 3.3V I/O supplies |
| Reset Timeout Period | 100ms (min), 185ms (typ), 320ms (max) - provides sufficient hold time for safe processor boot sequence |
| Supply Current (ICC) | 13µA (min), 30µA (max) at VCC = 3.6V - enables battery-backed or energy-constrained applications |
| Threshold Hysteresis | 0.7% - eliminates false triggering during slow-rising/falling supply transitions |
| Operating Temperature | -40°C to +125°C - qualified for automotive under-hood and industrial control environments |
Pinout & Package
MAX6757UTRD0 is housed in a 6-pin SOT23-6 package with exposed pad (EP), rated for -40°C to +125°C operation. Pin 1 is marked with a dot; EP is internally connected to GND and must be soldered to ground plane for thermal and electrical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VCC) | Power Input & Monitored Voltage | Primary supply rail input; also the voltage being supervised - no external divider needed for fixed-threshold operation |
| 2 (GND) | Ground Reference | Common return path for all internal circuitry and output drivers; connects to EP |
| 3 (MR) | Active-Low Manual Reset Input | Drives UV output low when asserted; internal 26kΩ pullup to VCC eliminates need for external resistor |
| 4 (UV) | Active-Low Push-Pull Undervoltage Output | Asserts low when VCC < UVTH; drives high actively (VOH ≥ 0.8×VCC) when deasserted - no external pullup required |
| 5 (OV) | Active-Low Open-Drain Overvoltage Output | Asserts low when VCC > OVTH; requires external pullup (e.g., 10kΩ to VCC) for logic-high state |
| 6 (SET) | Window Threshold Select Input | Biasing to VCC configures ±10% window; enables precise matching to 3.3V system tolerance requirements |
Key Features
| Feature | Design Value |
|---|---|
| Independent UV/OV outputs | Enables separate fault handling - e.g., UV triggers graceful shutdown while OV initiates immediate power disconnect |
| ±10% factory-trimmed window (3.3V) | Eliminates external resistor networks and calibration; meets JEDEC JESD8-12A 3.3V supply tolerance (±10%) |
| 100ms minimum reset timeout | Ensures stable processor initialization after power-up or recovery from brownout, compliant with ARM Cortex-M boot timing |
| Low 13µA supply current | Reduces quiescent power in always-on supervisory circuits - critical for battery-powered IoT edge nodes |
| VCC-down-to-1.0V output validity | Maintains correct UV/OV logic states even during deep brownout, enabling fail-safe signaling before complete power loss |
Applications
| Telecom Power Supervision | Industrial PLC I/O Module |
|---|---|
|
Use Scenario: Monitoring 3.3V auxiliary supply in LTE base station remote radio units subject to lightning-induced surges and cold-cranking dips. IC Role / Device Role / Timing Role: Voltage supervisor asserting independent UV and OV signals to FPGA-based protection logic with 100ms reset hold time. Use Value: Prevents corrupted configuration writes during undervoltage and avoids MOSFET gate overdrive during overvoltage - directly enabled by ±10% 3.3V thresholds and dual-output architecture. |
Use Scenario: Supervising 3.3V digital I/O rail in DIN-rail mounted programmable logic controller with extended temperature operation. IC Role / Device Role / Timing Role: Single-chip window detector providing fail-safe reset and fault flags across -40°C to +125°C ambient range. Use Value: Guarantees correct UV/OV output states down to VCC = 1.0V and operates reliably at full spec over industrial temperature - eliminating need for external biasing or compensation. |
| Automotive Body Control Module | Server Management Controller |
|
Use Scenario: Monitoring 3.3V microcontroller supply in body electronics module exposed to load-dump transients and battery undervoltage. IC Role / Device Role / Timing Role: Immune-to-transients window detector with 300ns transient immunity and manual reset for service mode entry. Use Value: Survives ISO 7637-2 Pulse 1/2a/5a events without false triggering due to built-in noise rejection and 0.7% hysteresis. |
Use Scenario: Supervising 3.3V BMC (Baseboard Management Controller) supply in 1U rack server where space and power are constrained. IC Role / Device Role / Timing Role: Ultra-low-current (13µA typ) voltage monitor in always-on BMC power domain with independent fault reporting. Use Value: Reduces standby power by >50% vs. legacy supervisors while delivering deterministic 100ms reset timing - critical for ENERGY STAR compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV809E33DBZR | Single open-drain reset output only; no independent OV signal; ±2% accuracy (tighter) but no SET-adjustable window | Lacks dual-fault reporting - unsuitable where separate UV/OV handling is required for safety-critical sequencing | Select when only basic reset generation is needed and higher threshold accuracy outweighs dual-output requirement |
| ADM6315-33ARTZ-RL | Push-pull RESET output only; 200ms min timeout; no SET pin; ±2.5% threshold accuracy; no OV output | Cannot indicate overvoltage condition independently - requires external comparator for OV detection | Choose for cost-sensitive designs needing only reset assertion with longer timeout, not window monitoring |
Compared with TLV809E33DBZR and ADM6315-33ARTZ-RL, MAX6757UTRD0 uniquely delivers independent UV and OV outputs in one SOT23-6 package with configurable ±10% window and 100ms timeout - essential for systems requiring differentiated fault response and compact layout.
Availability
MAX6757UTRD0 is available at Aetrix Electronics and suitable for telecom power supervision, industrial PLC I/O modules, and automotive body control applications requiring stable component supply, long-term lifecycle support, and AEC-Q100-aligned reliability.
Supply support for MAX6757UTRD0 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 in industrial, automotive, and communications markets.
MAX6757UTRD0 belongs to the MAX6754–MAX6764 family of low-power window detectors engineered specifically for robust, single-chip power-rail supervision in space-constrained, high-reliability embedded systems.
FAQ
What is the exact undervoltage and overvoltage threshold for MAX6757UTRD0 at 3.3V nominal?
The MAX6757UTRD0 has factory-trimmed thresholds for a 3.3V nominal supply: undervoltage threshold (UVTH) is 2.97V (min) to 3.135V (max) on falling VCC, and overvoltage threshold (OVTH) is 3.465V (min) to 3.63V (max) on rising VCC. These values reflect ±10% window tolerance as configured by the SET pin tied to VCC, and are fully specified over -40°C to +125°C.
Does MAX6757UTRD0 support operation below 1.8V supply voltage?
Yes, MAX6757UTRD0 operates with VCC as low as 1.0V while maintaining valid output logic states - UV and OV outputs remain correctly asserted or deasserted down to VCC = 1.0V. This enables use in ultra-low-voltage subsystems such as backup power domains or energy-harvesting interfaces where supply may dip below 1.8V.
What is the function of the SET pin on MAX6757UTRD0, and how should it be connected?
The SET pin on MAX6757UTRD0 selects the window width: connect SET to VCC for ±10% (as implemented in MAX6757UTRD0), to GND for ±5%, or bias to VCC/2 for ±15%. For MAX6757UTRD0's 3.3V nominal rating, SET = VCC configures UVTH = 2.97V–3.135V and OVTH = 3.465V–3.63V - matching standard 3.3V supply tolerances without external components.
How does the reset timeout behavior differ between UV and OV outputs on MAX6757UTRD0?
MAX6757UTRD0 applies the 100ms minimum timeout only to the UV output (and RESET function); the OV output asserts immediately with 20µs propagation delay and deasserts instantly when VCC falls below OVTH - no timeout. This allows fast overvoltage shutdown while ensuring sufficient hold time for safe processor restart after undervoltage recovery.
Is MAX6757UTRD0 pin-compatible with other devices in the MAX6754–MAX6764 family?
MAX6757UTRD0 shares the same 6-pin SOT23-6 package and pinout (VCC, GND, MR, UV, OV, SET) with MAX6758UTRD0 and MAX6759UTRD0, but differs in output type: MAX6757UTRD0 uses push-pull UV and open-drain OV, whereas MAX6758UTRD0 uses push-pull UV and OV, and MAX6759UTRD0 uses open-drain UV and OV. Direct substitution requires verifying output drive requirements in the target circuit.
MAX6757UTRD0 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:
- Power Supply Monitor
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 3V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 20µs Typical
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
MAX6757UTRD0 FAQ
1.How can I place an order for MAX6757UTRD0 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6757UTRD0 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 MAX6757UTRD0 reliable?
The price and inventory of MAX6757UTRD0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6757UTRD0 is usually 5 days.
3.What payment methods are accepted for MAX6757UTRD0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6757UTRD0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6757UTRD0?
MAX6757UTRD0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6757UTRD0 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 MAX6757UTRD0?
For technical support, including MAX6757UTRD0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6757UTRD0 requirements.
6.How does Aetrix verify that MAX6757UTRD0 is sourced from the original manufacturer or authorized distributors?
All MAX6757UTRD0 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 MAX6757UTRD0 meets industry standards.
7.What is the process for return or replacement of MAX6757UTRD0?
All MAX6757UTRD0 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6757UTRD0, 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 MAX6757UTRD0 part is unused and in its original packaging.
Return procedure for MAX6757UTRD0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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