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Analog Devices Inc./Maxim Integrated MAX6762TAWAD3+T
- Part No.:
- MAX6762TAWAD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- -
- Datasheet:
-
MAX6762TAWAD3+T.pdf
- Description:
- IC DETECT VOLT WINDOW 8-TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:12,500
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Product details
Overview
MAX6762TAWAD3+T from Analog Devices is a dual-voltage window detector IC monitoring both VCC and VCC2 supplies, with factory-trimmed 3.3V/1.8V thresholds, ±15% window (SET = VCC/2), 100ms minimum reset timeout, latched overvoltage output, and manual reset input. It operates from -40°C to +125°C in automotive and industrial power-rail supervision.
For engineers reviewing the MAX6762TAWAD3+T datasheet, MAX6762TAWAD3+T pinout, MAX6762TAWAD3+T application, or MAX6762TAWAD3+T equivalent, key selection factors include dual-supply monitoring capability, latch-enabled OV output for fault retention, 10µA supply current, TDFN-8 package footprint, and AEC-Q100 qualification for automotive use.
Technical Context
The MAX6762TAWAD3+T implements independent undervoltage and overvoltage comparators for two system rails-VCC (3.3V nominal) and VCC2 (1.8V nominal)-with internal reference trimming and SET-pin programmable window width (±5%/±10%/±15%). Its OVLATCH input enables persistent OV assertion until cleared externally.
It features push-pull UV and open-drain OV outputs, a manual reset (MR) input with 26kΩ internal pullup, and guaranteed output validity down to VCC = 1.0V. The device uses no external components for threshold setting and supports fast 20µs propagation delay on MR and voltage transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Nominal Voltage | 3.3V - factory-trimmed primary supply monitor point |
| VCC2 Nominal Voltage | 1.8V - factory-trimmed secondary supply monitor point |
| Window Tolerance | ±15% - set by biasing SET pin to VCC/2; enables robust margin against rail drift |
| Reset Timeout Period | 100ms (min) - ensures stable microprocessor reset hold time after UV recovery |
| Supply Current | 13µA (typ at 3.6V) - enables always-on supervision in battery-backed systems |
| Operating Temperature | -40°C to +125°C - qualified for under-hood automotive and industrial environments |
| Output Types | UV: active-low push-pull; OV: active-low open-drain - supports direct MCU interface and wired-OR fault signaling |
Pinout & Package
MAX6762TAWAD3+T is housed in an 8-pin TDFN package (package code T833+2, outline 21-0137) with exposed pad (EP) internally connected to GND. Thermal resistance θJA = 41°C/W on multilayer board enables high-reliability operation at full temperature range.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - MR | Active-low manual reset input | Asserts UV output when pulled low; internal 26kΩ pullup to VCC eliminates external resistor |
| 2 - OVLATCH | Overvoltage latch control | High = latch OV output; low = clear latch; high-impedance input requires external pullup/pulldown |
| 3 - UV | Undervoltage output | Active-low push-pull; drives low during VCC or VCC2 undervoltage; valid down to VCC = 1.0V |
| 4 - OV | Overvoltage output | Active-low open-drain; asserts immediately on OV condition; latched if OVLATCH = high |
| 5 - SET | Window threshold select | Bias to VCC/2 for ±15% window; GND = ±5%, VCC = ±10% |
| 6 - VCC2 | Secondary monitored supply | Input for 1.8V rail monitoring; powers device when VCC2 > VCC |
| 7 - GND | Ground reference | Common return for all analog and digital circuitry; EP must be connected to GND |
| 8 - VCC | Primary monitored supply | Input for 3.3V rail monitoring and device power; bypass with 0.1µF capacitor to GND |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneously supervises 3.3V (VCC) and 1.8V (VCC2) rails with separate UV/OV outputs and thresholds |
| Latched overvoltage output | OVLATCH pin enables persistent fault indication until explicitly cleared-critical for safety-critical diagnostics |
| Factory-trimmed precision thresholds | ±1.5% initial accuracy over temperature; eliminates calibration overhead in production |
| Low-power operation | 13µA typical ICC enables integration into always-on subsystems without compromising battery life |
| Robust noise immunity | 300ns transient immunity and 0.7% threshold hysteresis prevent false triggering on supply glitches |
Applications
| Power Sequencing in Automotive ECUs | Industrial PLC I/O Module Supervision |
|---|---|
Use Scenario: Monitoring core (3.3V) and I/O (1.8V) rails in engine control units where out-of-spec voltage must trigger immediate shutdown and fault logging. IC Role / Device Role / Timing Role: Dual-rail window detector with latched OV output ensures fault state persists across power cycles for diagnostic retrieval. Use Value: Eliminates need for external latch or microcontroller polling; reduces BOM count and firmware complexity. | Use Scenario: Supervising isolated 3.3V logic and 1.8V FPGA configuration rails in programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Provides independent UV/OV flags with 100ms reset timeout to meet IEC 61000-4-2/4-4 immunity requirements. Use Value: Guarantees clean processor reset and deterministic fault response even during rapid rail collapse events. |
| Telecom Base Station Power Management | Medical Imaging Sensor Subsystem |
Use Scenario: Validating redundant 3.3V and 1.8V DC-DC converter outputs in 5G radio units where undetected rail failure causes data corruption. IC Role / Device Role / Timing Role: Acts as hardware-level fail-safe supervisor with manual reset (MR) for field service recovery without power cycle. Use Value: Enables hot-swap recovery via MR button while maintaining OV latch integrity for root-cause analysis. | Use Scenario: Ensuring stable 3.3V analog front-end and 1.8V digital processing rails in portable ultrasound sensor modules with strict power budget constraints. IC Role / Device Role / Timing Role: Low-current (13µA) dual-monitor provides continuous supervision without draining Li-ion battery during standby. Use Value: Extends battery runtime by >12 months in always-on monitoring mode while meeting IEC 60601-1 leakage limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-rail voltage monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6761TAWAD3+T | Identical pinout and electrical specs; differs only in UV output polarity (active-high push-pull vs. active-low) | Requires inverted logic handling in MCU firmware; unsuitable where UV must drive NMI directly | Select when system design expects active-high reset assertion or shares firmware with MAX6758-family devices |
| TPS3808G33DBVR | Single-rail 3.3V supervisor; no VCC2 input, no OVLATCH, no ±15% window option; SOT-23-6 package | Cannot monitor 1.8V rail; lacks latch function; requires external components for window adjustment | Use only for cost-sensitive single-rail applications where dual monitoring and fault retention are unnecessary |
Compared with MAX6761TAWAD3+T and TPS3808G33DBVR, the MAX6762TAWAD3+T uniquely delivers dual-rail supervision with latched OV output and ±15% window flexibility in a space-constrained TDFN-8 package-enabling consolidated fault detection in automotive and industrial edge nodes without sacrificing diagnostic fidelity.
Availability
MAX6762TAWAD3+T is available at Aetrix Electronics and suitable for automotive ECU power sequencing, industrial PLC I/O supervision, telecom base station redundancy, and medical imaging sensor subsystems requiring stable component supply across extended temperature and long product lifecycles.
Supply support for MAX6762TAWAD3+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 MAX6762TAWAD3+T belongs to the MAX6754–MAX6764 family of low-power window detectors designed specifically for reliable dual-rail power supply supervision in harsh environments with minimal external components.
FAQ
What is the exact factory-trimmed voltage threshold for VCC and VCC2 on the MAX6762TAWAD3+T?
The MAX6762TAWAD3+T has factory-trimmed nominal thresholds of 3.3V for VCC and 1.8V for VCC2. With SET biased to VCC/2, the resulting window is ±15%: UVTH = 2.805V / OVTH = 3.795V on VCC, and UVTH2 = 1.530V / OVTH2 = 2.070V on VCC2, all specified over -40°C to +125°C.
Does the MAX6762TAWAD3+T require external resistors to set its voltage thresholds?
No. The MAX6762TAWAD3+T uses internal precision resistor dividers for factory-trimmed 3.3V/1.8V thresholds. No external resistors are needed for basic operation. Only the SET pin (biased to GND/VCC/VCC/2) selects window width-no external components required for threshold programming.
How does the OVLATCH function behave on the MAX6762TAWAD3+T during an overvoltage event?
When OVLATCH is driven high, the MAX6762TAWAD3+T latches its OV output low upon any VCC or VCC2 overvoltage condition. The OV output remains latched low until OVLATCH is driven low-ensuring fault persistence across power interruptions or transient recoveries for diagnostic capture.
What is the reset timeout behavior of the MAX6762TAWAD3+T after a VCC undervoltage recovery?
After VCC rises above UVTH, the MAX6762TAWAD3+T holds the UV output low for a minimum of 100ms (D3 suffix), then releases it high. This timeout is fixed and guaranteed across temperature; it ensures the microprocessor completes full initialization before releasing reset, preventing premature execution.
Is the MAX6762TAWAD3+T AEC-Q100 qualified, and what grade does it meet?
Yes, the MAX6762TAWAD3+T is AEC-Q100 qualified for Grade 0 (-40°C to +150°C junction), with full characterization over -40°C to +125°C ambient. Its qualification covers stress testing for automotive applications including HTOL, TC, and ESD-making it suitable for engine control, ADAS, and body electronics.
MAX6762TAWAD3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- -
- Number of Voltages Monitored:
- -
- Voltage - Threshold:
- -
- Output:
- -
- Reset:
- -
- Reset Timeout:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX6762TAWAD3+T FAQ
1.How can I place an order for MAX6762TAWAD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6762TAWAD3+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 MAX6762TAWAD3+T reliable?
The price and inventory of MAX6762TAWAD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6762TAWAD3+T is usually 5 days.
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MAX6762TAWAD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6762TAWAD3+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 MAX6762TAWAD3+T?
For technical support, including MAX6762TAWAD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6762TAWAD3+T requirements.
6.How does Aetrix verify that MAX6762TAWAD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6762TAWAD3+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 MAX6762TAWAD3+T meets industry standards.
7.What is the process for return or replacement of MAX6762TAWAD3+T?
All MAX6762TAWAD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6762TAWAD3+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 MAX6762TAWAD3+T part is unused and in its original packaging.
Return procedure for MAX6762TAWAD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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