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Analog Devices Inc./Maxim Integrated MAX6758UTTD3
- Part No.:
- MAX6758UTTD3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6758UTTD3.pdf
- Description:
- IC SUPERVISOR SGL VOLT WINDOW
- Quantity:
- Payment:
- Shipping:
Inventory:1,982
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Product details
Overview
MAX6758UTTD3 from Maxim Integrated is a single-supply, low-power window voltage detector with independent undervoltage (UV) and overvoltage (OV) push-pull outputs, ±10% factory-trimmed threshold window (3.3V nominal), 100ms minimum reset timeout, and manual reset input. It monitors microprocessor I/O supply rails in industrial controllers and telecom power modules where precise 3.3V rail supervision with latch-free OV response is required.
For engineers reviewing the MAX6758UTTD3 datasheet, MAX6758UTTD3 pinout, MAX6758UTTD3 application, or MAX6758UTTD3 equivalent, key selection criteria include its 3.3V ±10% fixed window, push-pull UV output (active-high), open-drain OV output, -40°C to +125°C operation, and SOT23-6 package compatibility with space-constrained embedded power management designs.
Technical Context
The MAX6758UTTD3 implements dual independent comparators against a precision internal reference to detect VCC falling below UVTH (2.97V) or rising above OVTH (3.63V) under ±10% tolerance. Its SET pin is tied to VCC to configure the ±10% window, and MR provides active-low manual reset assertion with 100ms timeout recovery.
Unlike dual-supply variants (e.g., MAX6760 series), MAX6758UTTD3 monitors only VCC - not VCC2 - and lacks OVLATCH functionality. Its UV output is active-high push-pull; OV is active-low open-drain with no timeout, enabling immediate fault signaling in DC-DC converter supervision.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Supply Voltage | 3.3V - Factory-trimmed detection point for I/O rail monitoring in FPGA/ASIC systems. |
| Window Tolerance | ±10% - SET = VCC configures UVTH = 2.97V, OVTH = 3.63V at TA = +25°C. |
| Reset Timeout | 100ms min - Guarantees stable MCU reset hold time after VCC recovery from brownout. |
| Supply Current | 13µA typ at 3.6V - Enables always-on supervision in battery-backed or ultra-low-power systems. |
| Operating Temp | -40°C to +125°C - Validated for under-hood automotive modules and industrial PLCs. |
| Output Types | UV: active-high push-pull; OV: active-low open-drain - Simplifies interface to 3.3V logic and external pull-up networks. |
| Propagation Delay | 20µs typ - Ensures fast fault detection during transient overvoltage events on power rails. |
Pinout & Package
MAX6758UTTD3 is housed in a 6-pin SOT23-6 package with gull-wing leads, footprint-compatible with industry-standard 2.9mm × 1.6mm PCB land patterns and reflow-solderable per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VCC | Power Input & Monitored Rail | Supplies device and serves as the single voltage being supervised (3.3V nominal). |
| 2 - GND | Ground Reference | Return path for internal comparators and output drivers; must be low-impedance. |
| 3 - MR | Manual Reset Input | Active-low signal; internally pulled up to VCC via 26kΩ; asserts UV output when driven low. |
| 4 - UV | Undervoltage Output | Active-high push-pull; drives high when VCC < UVTH (2.97V); deasserts after 100ms timeout. |
| 5 - SET | Window Threshold Select | Tied to VCC to select ±10% window; floating or incorrect bias causes undefined thresholds. |
| 6 - OV | Overvoltage Output | Active-low open-drain; pulls low immediately when VCC > OVTH (3.63V); no timeout delay. |
Key Features
| Feature | Design Value |
|---|---|
| Independent UV/OV Outputs | Enables separate fault handling - e.g., log undervoltage event while triggering immediate OV shutdown. |
| 100ms Minimum Reset Timeout | Prevents premature MCU release during slow-rising VCC; meets JEDEC JESD8-12B timing requirements. |
| 20µs Propagation Delay | Supports real-time response to fast transients (<100ns) without external filtering. |
| Low 13µA Supply Current | Reduces quiescent load on backup batteries or energy-harvesting supplies by >90% vs. legacy supervisors. |
| Immunity to Short Transients | Withstands 300ns glitches on VCC or MR without false triggering - critical in noisy motor-drive environments. |
Applications
| Industrial PLC Power Supervision | Telecom DC-DC Module Monitoring |
|---|---|
Use Scenario: Continuous monitoring of 3.3V I/O supply in programmable logic controller backplanes exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Single-rail window detector asserting active-high UV output on brownout and active-low OV output on surge, both referenced to local ground. Use Value: Prevents corrupted I/O state during undervoltage and avoids MOSFET gate oxide stress during overvoltage - extending system MTBF by >3×. | Use Scenario: Supervision of isolated 3.3V output from telecom-grade DC-DC converters powering baseband processors. IC Role / Device Role / Timing Role: Real-time rail integrity monitor with 20µs fault detection latency and 100ms reset hold to coordinate with converter soft-start sequencing. Use Value: Eliminates need for external RC timing networks, reducing BOM count by 2 components and PCB area by 12 mm². |
| Automotive Body Control Module | FPGA Configuration Power-Up Sequence |
Use Scenario: Monitoring 3.3V auxiliary rail in body control units operating from 12V battery with cold-crank voltage dips. IC Role / Device Role / Timing Role: High-temp-rated supervisor asserting UV output during cranking (VCC < 2.97V) and clearing after 100ms stable recovery. Use Value: Maintains deterministic reset behavior across -40°C to +125°C, avoiding firmware lockup during engine start. | Use Scenario: Ensuring clean 3.3V supply before releasing FPGA configuration reset in high-reliability test equipment. IC Role / Device Role / Timing Role: Window detector generating synchronized UV and OV flags to gate FPGA INIT_B and CCLK enable signals. Use Value: Guarantees FPGA configuration occurs only within valid 3.3V ±10% window - preventing bitstream corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6757UTTD3 | Active-low push-pull UV output (vs. MAX6758UTTD3's active-high) | Requires inverted logic interface; unsuitable where upstream logic expects active-high UV flag | Select MAX6757UTTD3 only if system design uses active-low reset assertion protocol. |
| TLV809E33DBZR | Single-output (reset only), no independent OV; ±2% accuracy vs. ±10% window | Lacks overvoltage fault isolation; cannot distinguish UV vs. OV events | Choose TLV809E33DBZR only for cost-sensitive, UV-only applications without OV protection needs. |
Compared with MAX6757UTTD3 and TLV809E33DBZR, MAX6758UTTD3 uniquely delivers independent active-high UV and active-low OV signaling in one SOT23-6 package - enabling dual-fault diagnostics without additional logic or layout overhead.
Availability
MAX6758UTTD3 is available at Aetrix Electronics and suitable for industrial PLCs, telecom DC-DC modules, and automotive body control units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6758UTTD3 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 harsh environments.
The MAX6754–MAX6764 family was engineered for high-reliability voltage supervision in space-constrained, wide-temperature industrial and automotive systems - emphasizing low quiescent current, fast propagation, and robust transient immunity.
FAQ
What is the exact undervoltage and overvoltage threshold for MAX6758UTTD3?
The MAX6758UTTD3 has factory-trimmed thresholds centered on 3.3V with ±10% tolerance: undervoltage threshold (UVTH) is 2.97V (min) to 3.053V (max), and overvoltage threshold (OVTH) is 3.63V (min) to 3.713V (max), specified over -40°C to +125°C. These values assume SET is tied to VCC, per the 'T' suffix designation in the ordering guide.
Does MAX6758UTTD3 support dual-voltage monitoring like the MAX6760 series?
No, MAX6758UTTD3 monitors only a single supply (VCC). It does not support VCC2 input or dual-rail supervision. The MAX6760/MAX6761/MAX6762 series provide dual-voltage monitoring with separate VCC and VCC2 inputs and latched OV outputs - capabilities absent in MAX6758UTTD3.
What output configuration does MAX6758UTTD3 use for UV and OV pins?
MAX6758UTTD3 features an active-high push-pull UV output (pin 4) and an active-low open-drain OV output (pin 6). This allows direct connection of UV to 3.3V logic without pull-up resistors, while OV requires an external pull-up for proper high-state termination - matching common microcontroller interrupt and fault-signaling requirements.
Can MAX6758UTTD3 operate with VCC below 1.4V?
MAX6758UTTD3 requires VCC ≥ 1.4V for accurate voltage monitoring, but its outputs remain asserted in the correct logic state down to VCC = 1.0V. Below 1.4V, threshold accuracy degrades; however, the UV and OV flags retain functional validity for last-gasp system shutdown sequencing.
Is the SET pin on MAX6758UTTD3 configurable for ±15% window?
No - the SET pin on MAX6758UTTD3 must be tied to VCC to achieve the ±10% window specified by the 'T' suffix. Biasing SET to VCC/2 enables ±15%, but that configuration is only guaranteed for parts with 'R' or 'Z' suffixes (e.g., MAX6758UTRD3). Using VCC/2 on MAX6758UTTD3 yields undefined thresholds outside datasheet limits.
MAX6758UTTD3 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 High/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
MAX6758UTTD3 FAQ
1.How can I place an order for MAX6758UTTD3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6758UTTD3 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 MAX6758UTTD3 reliable?
The price and inventory of MAX6758UTTD3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6758UTTD3 is usually 5 days.
3.What payment methods are accepted for MAX6758UTTD3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6758UTTD3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6758UTTD3?
MAX6758UTTD3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6758UTTD3 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 MAX6758UTTD3?
For technical support, including MAX6758UTTD3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6758UTTD3 requirements.
6.How does Aetrix verify that MAX6758UTTD3 is sourced from the original manufacturer or authorized distributors?
All MAX6758UTTD3 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 MAX6758UTTD3 meets industry standards.
7.What is the process for return or replacement of MAX6758UTTD3?
All MAX6758UTTD3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6758UTTD3, 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 MAX6758UTTD3 part is unused and in its original packaging.
Return procedure for MAX6758UTTD3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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