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Analog Devices Inc./Maxim Integrated MAX6758UTZD3+T
- Part No.:
- MAX6758UTZD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6758UTZD3+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
MAX6758UTZD3+T from Analog Devices is a low-power, single-voltage window detector that monitors 3.3V system supplies for undervoltage (UV) and overvoltage (OV) conditions with ±15% factory-trimmed thresholds, 100ms minimum reset timeout, active-high push-pull UV output, and manual reset input - used in telecom power sequencing and server rail supervision.
For engineers reviewing the MAX6758UTZD3+T datasheet, MAX6758UTZD3+T pinout, MAX6758UTZD3+T application, or MAX6758UTZD3+T equivalent, key selection criteria include its 3.3V nominal monitoring capability, ±15% adjustable window via SET pin, -40°C to +125°C operation, 10μA supply current, and SOT23-6 package compatibility with space-constrained embedded power management designs.
Technical Context
The MAX6758UTZD3+T 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%), and MR input provides active-low manual reset with 300ns propagation delay and 100ms timeout recovery.
This device operates from VCC = 1.0V to 6.0V, guarantees correct output states down to VCC = 1.0V, and features immunity to transients <300ns. It asserts UV high when VCC drops below UVTH (2.805V min at 3.3V nominal), and deasserts after 100ms once VCC recovers above UVTH.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Supply Voltage | 3.3V - matches I/O rail monitoring in telecom and server applications |
| Window Tolerance | ±15% - set by biasing SET pin to VCC/2; enables robust margin against ripple and drift |
| Reset Timeout Period | 100ms min - ensures stable microprocessor reset during slow-rising power rails |
| Supply Current | 13µA typ at 3.6V - supports always-on battery-backed supervision without significant drain |
| Operating Temperature | -40°C to +125°C - qualified for under-hood automotive and industrial power modules |
| UV Output Type | Active-high push-pull - eliminates need for external pull-up; drives logic inputs directly |
| UV Threshold Range | 2.805V to 2.970V (falling VCC) - precise detection of 3.3V rail collapse with 1.5% max variation over temp |
Pinout & Package
MAX6758UTZD3+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 - suitable for high-density PCB layouts with minimal heatsinking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - GND | Ground reference | Common return path for internal comparators and output drivers; must be low-impedance |
| 2 - UV | Undervoltage output | Active-high push-pull signal asserted when VCC falls below UVTH; drives CMOS/TTL loads directly |
| 3 - MR | Manual reset input | Active-low input with 26kΩ internal pull-up; initiates UV assertion for system-initiated reset |
| 4 - SET | Window select input | Bias to VCC/2 for ±15% window; sets hysteresis width without external components |
| 5 - OV | Overvoltage output | Active-low open-drain output asserted when VCC exceeds OVTH; requires external pull-up |
| 6 - VCC | Power & monitored supply | Powers device and serves as monitored voltage; bypass with 0.1µF capacitor to GND |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 3.3V window | UVTH = 2.805–2.970V, OVTH = 3.465–3.630V - eliminates calibration effort in production |
| Adjustable window width | ±5%/±10%/±15% via SET pin - accommodates varying tolerance requirements across platforms |
| 100ms minimum timeout | Guarantees reset pulse width >100ms - satisfies Intel/AMD CPU reset timing specifications |
| Low 13µA supply current | Enables permanent connection to always-on 3.3V standby rails - no power-gating needed |
| Transient immunity | Rejects noise spikes <300ns - prevents false resets during switching regulator cross-coupling |
Applications
| Telecom Power Sequencing | Server Rail Supervision |
|---|---|
Use Scenario: Monitoring 3.3V management rail in 5G base station power modules during cold start and brownout events. IC Role / Device Role / Timing Role: Window detector asserting UV high upon VCC drop below 2.805V, holding for ≥100ms before release. Use Value: Prevents FPGA configuration corruption by ensuring clean reset before logic initialization. | Use Scenario: Supervising 3.3V I/O supply in dual-CPU server motherboards with hot-swap capability. IC Role / Device Role / Timing Role: Independent UV/OV detection with manual reset override via service processor GPIO. Use Value: Enables graceful shutdown and fault logging when rail deviates beyond ±15% due to load transient or VRM failure. |
| Industrial PLC Power Management | Automotive ADAS Domain Controller |
Use Scenario: Monitoring isolated 3.3V CAN transceiver supply in programmable logic controller backplane. IC Role / Device Role / Timing Role: UV output drives watchdog enable line; MR pin tied to front-panel reset button. Use Value: Ensures deterministic recovery after power interruption without firmware intervention. | Use Scenario: Supervising 3.3V sensor interface rail in radar ECU operating at 125°C ambient. IC Role / Device Role / Timing Role: High-temp qualified window detector with guaranteed operation from -40°C to +125°C. Use Value: Meets AEC-Q100 Grade 1 requirements for safety-critical power monitoring in autonomous driving systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar window detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6757UTZD3+T | Active-low push-pull UV output vs. MAX6758UTZD3+T's active-high UV | Requires inverted logic handling in host MCU interrupt input | Select when existing firmware expects active-low reset signaling |
| TPS3808G33DBVR | Fixed ±3% window, no SET pin adjustability; 300ms timeout vs. 100ms min | Lacks ±15% flexibility and shorter timeout may not meet CPU spec | Choose only if tighter threshold tolerance and longer timeout are acceptable trade-offs |
Compared with MAX6757UTZD3+T and TPS3808G33DBVR, the MAX6758UTZD3+T uniquely delivers active-high UV output with ±15% window configurability and guaranteed 100ms minimum timeout - critical for direct interfacing with non-inverting reset controllers and fast-recovery power domains.
Availability
MAX6758UTZD3+T is available at Aetrix Electronics and suitable for telecom power sequencing, server rail supervision, industrial PLC power management, and automotive ADAS domain controller applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6758UTZD3+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, serving industrial, automotive, communications, and healthcare markets.
The MAX6758UTZD3+T belongs to the MAX6754–MAX6764 family of low-power window detectors designed specifically for reliable, zero-calibration power supply monitoring in harsh-temperature embedded systems.
FAQ
What is the exact undervoltage threshold range for MAX6758UTZD3+T at 3.3V nominal supply?
The MAX6758UTZD3+T has a guaranteed undervoltage threshold range of 2.805V to 2.970V (falling VCC) at TA = -40°C to +125°C, corresponding to -15% to -10% deviation from 3.3V nominal. This is specified in the Electrical Characteristics table under UVTH for T-suffix (3.3V) devices with D3 timeout option.
How does the SET pin configure the window width on MAX6758UTZD3+T?
The SET pin on MAX6758UTZD3+T configures window width by voltage level: connect to GND for ±5%, to VCC for ±10%, or bias to VCC/2 (via resistor divider) for ±15%. For MAX6758UTZD3+T, the Z-suffix indicates 3.3V/2.5V dual-voltage support, and the D3 suffix confirms 100ms timeout - both require SET = VCC/2 to achieve ±15%.
Is MAX6758UTZD3+T compatible with 1.8V system supplies?
No, MAX6758UTZD3+T is not rated for 1.8V system monitoring. Its T-suffix denotes 3.3V nominal operation, and electrical specs (e.g., UVTH = 2.805–2.970V) confirm it targets 3.3V rails. For 1.8V, use MAX6758UTWD3+T (W-suffix) with UVTH = 1.530–1.620V.
Does MAX6758UTZD3+T provide overvoltage latch functionality?
No, MAX6758UTZD3+T does not include overvoltage latch functionality. That feature is exclusive to the MAX6760/MAX6761/MAX6762 series (dual-supply devices with OVLATCH pin). MAX6758UTZD3+T provides independent UV and OV outputs but no latching - OV deasserts immediately when VCC falls below OVTH.
What is the maximum sink current supported by the UV output of MAX6758UTZD3+T?
The UV output of MAX6758UTZD3+T supports up to 1.0mA sink current while maintaining VOL ≤ 0.3V, provided VCC ≥ 1.71V. This is specified in the "RESET, UV Output Low (Push-Pull)" section of the Electrical Characteristics table, enabling direct drive of standard logic inputs without external buffering.
MAX6758UTZD3+T 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:
- 2.5V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6758UTZD3+T FAQ
1.How can I place an order for MAX6758UTZD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6758UTZD3+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 MAX6758UTZD3+T reliable?
The price and inventory of MAX6758UTZD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6758UTZD3+T is usually 5 days.
3.What payment methods are accepted for MAX6758UTZD3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6758UTZD3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6758UTZD3+T?
MAX6758UTZD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6758UTZD3+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 MAX6758UTZD3+T?
For technical support, including MAX6758UTZD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6758UTZD3+T requirements.
6.How does Aetrix verify that MAX6758UTZD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6758UTZD3+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 MAX6758UTZD3+T meets industry standards.
7.What is the process for return or replacement of MAX6758UTZD3+T?
All MAX6758UTZD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6758UTZD3+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 MAX6758UTZD3+T part is unused and in its original packaging.
Return procedure for MAX6758UTZD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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