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Analog Devices Inc./Maxim Integrated MAX6757UTZD0+T
- Part No.:
- MAX6757UTZD0+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6757UTZD0+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,783
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Product details
Overview
The MAX6757UTZD0+T from Analog Devices is a low-power, single-voltage window detector monitoring 3.3V system supplies with ±15% factory-trimmed thresholds (UVTH = 2.805V–2.970V, OVTH = 3.630V–3.795V), independent push-pull UV and open-drain OV outputs, 20μs propagation delay, and manual reset input - used in telecom power sequencing and microprocessor supply supervision.
For engineers reviewing the MAX6757UTZD0+T datasheet, MAX6757UTZD0+T pinout, MAX6757UTZD0+T application, or MAX6757UTZD0+T equivalent, this page delivers verified electrical specs, thermal behavior at -40°C to +125°C, SOT23-6 package layout, and real-world design guidance for undervoltage/overvoltage fault response in DC-DC converter modules and embedded controllers.
Technical Context
The MAX6757UTZD0+T implements dual independent comparators with internal reference and adjustable window via SET pin biasing (VCC/2 for ±15%), enabling precise detection of VCC falling below UVTH or rising above OVTH without external components. Its UV output asserts low on undervoltage and deasserts after 20μs timeout; OV asserts low on overvoltage with no timeout and immediate high-impedance release.
It features a 26kΩ internal MR pullup, supports VCC down to 1.0V while maintaining valid outputs, and includes transient immunity up to 300ns. The device operates across full automotive-grade temperature range (-40°C to +125°C) with guaranteed performance at 3.3V nominal supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.0V to 6.0V - ensures operation during brownout; outputs remain valid even when VCC drops to 1.0V |
| Undervoltage Threshold (UVTH) | 2.805V to 2.970V (at 3.3V nominal, ±15%) - triggers UV output when VCC falls below this window |
| Overvoltage Threshold (OVTH) | 3.630V to 3.795V (at 3.3V nominal, ±15%) - triggers OV output when VCC exceeds this window |
| Propagation Delay | 20μs (typ) - defines fastest detectable fault transition time before output assertion |
| Supply Current (ICC) | 13μA to 30μA at 3.6V - enables battery-backed or ultra-low-power systems |
| Operating Temperature | -40°C to +125°C - qualified for industrial and automotive under-hood applications |
| Output Types | UV: active-low push-pull; OV: active-low open-drain - allows flexible interface with µP NMI or latch circuits |
Pinout & Package
MAX6757UTZD0+T is housed in a 6-pin SOT23 package (package code U6+1, outline 21-0058), with exposed pad not present. Thermal resistance θJA = 115°C/W on multilayer board enables reliable operation at full temperature range without heatsinking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for all internal circuitry and output drivers |
| 2 | UV | Active-low push-pull undervoltage output - asserts low when VCC < UVTH |
| 3 | MR | Active-low manual reset input - internally pulled up to VCC via 26kΩ resistor |
| 4 | SET | Threshold window select - biased to VCC/2 for ±15% window setting |
| 5 | OV | Active-low open-drain overvoltage output - asserts low when VCC > OVTH, releases immediately on recovery |
| 6 | VCC | Power input and monitored voltage - powers device and serves as detection reference |
Key Features
| Feature | Design Value |
|---|---|
| Independent UV/OV outputs | Enables separate fault handling - e.g., UV triggers soft reset while OV initiates shutdown sequence |
| ±15% factory-trimmed window | Eliminates need for external resistors; supports 3.3V rail with 2.805V–3.795V detection band |
| 20μs fast propagation delay | Responds to rapid transients before system instability occurs - critical for FPGA and DSP power rails |
| Manual reset input with internal pullup | Reduces BOM count; 4μs minimum pulse width allows compact pushbutton debouncing |
| Low 10μA typical supply current | Extends battery life in always-on monitoring nodes - e.g., remote telemetry sensors |
Applications
| Telecom Power Sequencing | Microprocessor Supply Supervision |
|---|---|
Use Scenario: Monitoring 3.3V I/O supply in 5G baseband units during hot-swap insertion and voltage ramp-up. IC Role / Device Role / Timing Role: Window detector asserting UV on undershoot and OV on overshoot during power-on sequencing. Use Value: Prevents firmware execution until stable 3.3V rail is confirmed, avoiding bus contention and register corruption. | Use Scenario: Supervising core voltage of ARM-based industrial controller during brownout events. IC Role / Device Role / Timing Role: Independent UV output drives µP NMI pin; OV output disables PMIC enable line. Use Value: Enables deterministic safe state entry on undervoltage and immediate power cutoff on overvoltage - meeting IEC 61508 SIL-2 requirements. |
| DC-DC Converter Module Protection | Automotive Body Control Module |
Use Scenario: Detecting output fault in isolated 3.3V flyback converter supplying CAN transceiver and EEPROM. IC Role / Device Role / Timing Role: OV output latched via external logic to disable primary-side MOSFET gate driver on overvoltage. Use Value: Limits fault energy to <10mJ during output short-circuit, preventing transformer saturation and MOSFET failure. | Use Scenario: Monitoring 3.3V domain powering LIN transceivers and sensor ADCs in door module ECU. IC Role / Device Role / Timing Role: UV output resets microcontroller; SET pin tied to VCC/2 for ±15% tolerance accommodating battery voltage drift. Use Value: Maintains functional safety integrity across full vehicle lifecycle - validated per AEC-Q100 Rev H (note: /V suffix required for qualification). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar window detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6757UTTD0+T | ±10% window (UVTH = 2.805V–2.970V, OVTH = 3.630V–3.795V same; SET = VCC instead of VCC/2) | Narrower detection band - less tolerant of rail drift but tighter margin control | Select when system voltage stability exceeds ±7.5% and tighter fault threshold is required |
| TLV809E33DBZR | Single-output (reset only), no OV function, fixed 3.08V threshold, no SET pin, 350ms reset timeout | Lacks independent OV detection and window adjustability - suitable only for basic UV-only monitoring | Choose only if cost sensitivity outweighs need for overvoltage protection and programmable window |
Compared with MAX6757UTZD0+T, the UTTD0 variant offers tighter ±10% window control at identical timing and package, while TLV809E33DBZR sacrifices OV detection and adjustability for lower unit cost in non-critical UV-only use cases.
Availability
MAX6757UTZD0+T is available at Aetrix Electronics and suitable for telecom infrastructure, microprocessor supervision, and DC-DC converter module protection requiring stable component supply across extended temperature and long production lifecycles.
Supply support for MAX6757UTZD0+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 designs precision analog, mixed-signal, and digital signal processing ICs for high-reliability industrial, automotive, and communications systems.
The MAX6757UTZD0+T belongs to the MAX6754–MAX6764 family of low-power window detectors engineered for robust power-supply monitoring in space-constrained, thermally demanding environments.
FAQ
What is the exact undervoltage and overvoltage threshold range for MAX6757UTZD0+T at 3.3V nominal supply?
The MAX6757UTZD0+T has factory-trimmed thresholds for 3.3V nominal operation with ±15% window: UVTH = 2.805V to 2.970V (falling VCC), OVTH = 3.630V to 3.795V (rising VCC). These values are guaranteed over -40°C to +125°C and apply specifically to the UTZD0 suffix variant with SET biased to VCC/2.
Does MAX6757UTZD0+T support operation below 1.4V VCC?
Yes - MAX6757UTZD0+T operates with VCC as low as 1.0V, and its UV/OV outputs remain asserted in correct logic state down to that level. However, voltage monitoring functionality (threshold comparison) requires VCC ≥ 1.4V per datasheet Note 2.
How is the ±15% window configured on MAX6757UTZD0+T?
The ±15% window on MAX6757UTZD0+T is set by biasing the SET pin to VCC/2 using a resistor divider. This configuration is explicitly defined for the UTZD0 suffix and differs from UTLD0 (±5%, SET = GND) and UTTD0 (±10%, SET = VCC).
What output drive capability does MAX6757UTZD0+T provide for UV and OV pins?
UV (push-pull) sinks ≥1.0mA at VCC ≥ 1.71V with VOL ≤ 0.3V; OV (open-drain) sinks ≥1.4mA at VCC ≥ 1.98V with VOL ≤ 0.3V. Both outputs maintain specified drive strength across full -40°C to +125°C range.
Is MAX6757UTZD0+T pin-compatible with other MAX6757 variants like UTLD0 or UTTD0?
Yes - all MAX6757 variants including MAX6757UTZD0+T, MAX6757UTLD0+T, and MAX6757UTTD0+T share identical SOT23-6 pinout, package dimensions, and terminal functions. Only the internal threshold trim and SET pin configuration differ between suffixes.
MAX6757UTZD0+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:
- 2.5V
- 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-6
MAX6757UTZD0+T FAQ
1.How can I place an order for MAX6757UTZD0+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6757UTZD0+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 MAX6757UTZD0+T reliable?
The price and inventory of MAX6757UTZD0+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6757UTZD0+T is usually 5 days.
3.What payment methods are accepted for MAX6757UTZD0+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6757UTZD0+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6757UTZD0+T?
MAX6757UTZD0+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6757UTZD0+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 MAX6757UTZD0+T?
For technical support, including MAX6757UTZD0+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6757UTZD0+T requirements.
6.How does Aetrix verify that MAX6757UTZD0+T is sourced from the original manufacturer or authorized distributors?
All MAX6757UTZD0+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 MAX6757UTZD0+T meets industry standards.
7.What is the process for return or replacement of MAX6757UTZD0+T?
All MAX6757UTZD0+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6757UTZD0+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 MAX6757UTZD0+T part is unused and in its original packaging.
Return procedure for MAX6757UTZD0+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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