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Analog Devices Inc./Maxim Integrated MAX6762TAWAD3+
- Part No.:
- MAX6762TAWAD3+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX6762TAWAD3+.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,355
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Product details
Overview
MAX6762TAWAD3+ from Maxim Integrated is a dual-voltage window detector IC that monitors both VCC (1.8V nominal) and VCC2 (adjustable down to 0.9V) for undervoltage/overvoltage conditions, featuring independent UV/OV open-drain outputs, latched OV output, manual reset input, ±5%/±10%/±15% selectable window, and 100ms minimum reset timeout. It operates across -40°C to +125°C and draws only 13µA supply current, used in automotive power rail supervision and industrial DC-DC converter monitoring.
For engineers reviewing the MAX6762TAWAD3+ datasheet, MAX6762TAWAD3+ pinout, MAX6762TAWAD3+ application, or MAX6762TAWAD3+ equivalent, key selection criteria include dual-supply monitoring capability, latched overvoltage response, factory-trimmed 1.8V/0.9V thresholds with adjustable VCC2, TDFN-8 package compatibility, and extended temperature operation without external components.
Technical Context
The MAX6762TAWAD3+ implements two independent voltage comparators with internal reference and hysteresis (0.7%), where VCC is monitored at fixed 1.8V thresholds (UVTH = 1.62V–1.98V, OVTH = 1.89V–2.16V) and VCC2 is monitored via externally adjustable divider targeting 0.4255V at the input. The SET pin selects window tolerance (GND = ±5%, VCC = ±10%, VCC/2 = ±15%).
It features a latched OV output controlled by OVLATCH pin: high latches OV assertion during overvoltage, low clears latch after fault removal; OV deasserts immediately when VCC/VCC2 falls below OVTH. RESET and UV outputs assert on UV condition or MR low, with 100ms minimum timeout before deassertion after recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Threshold | 1.8V nominal, UVTH = 1.62–1.98V, OVTH = 1.89–2.16V - factory-trimmed for direct 1.8V rail monitoring |
| VCC2 Threshold | Adjustable via external divider to 0.4255V input - supports monitoring of 0.9V to 5V supplies with ±5%/±10%/±15% window |
| Supply Current | 13µA typical at 3.6V - enables always-on supervision in battery-backed or low-power systems |
| Timeout Period | 100ms minimum (D3 option) - ensures stable microprocessor reset after power recovery |
| Operating Temp | -40°C to +125°C - qualified for under-hood automotive and industrial embedded environments |
| Output Type | Open-drain UV and OV, push-pull RESET - allows flexible logic-level interfacing and wired-OR fault aggregation |
| Reset Propagation | 300ns transient immunity, 4µs MR pulse width min - robust against noise and bounce on manual reset line |
Pinout & Package
MAX6762TAWAD3+ is housed in an 8-pin TDFN package (3mm × 3mm, 0.75mm height) with exposed pad (EP) internally connected to GND. Pin 1 is marked with dot; EP must be soldered to PCB ground plane for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VCC | Power Input & Primary Monitor Rail | Powers device and serves as first monitored voltage (1.8V nominal); valid outputs down to VCC = 1.0V |
| 2 GND | Ground Reference | Common return for all analog and digital circuitry; EP is internally tied to this node |
| 3 OVLATCH | Latch Control Input | High = latch OV output during overvoltage; low = clear latch; high-impedance, requires external pullup/pulldown |
| 4 VCC2 | Secondary Monitor Input | Input for second voltage rail; threshold set by external divider to 0.4255V; supports 0.9V–5V monitoring |
| 5 MR | Active-Low Manual Reset | Drives UV/RESET low when asserted; internally pulled up to VCC (26kΩ); 4µs min pulse width |
| 6 UV | Undervoltage Output | Open-drain, active-low; asserts when VCC or VCC2 falls below UVTH; 100ms timeout before deassertion |
| 7 OV | Overvoltage Output | Open-drain, active-low, latched; asserts when VCC or VCC2 exceeds OVTH; cleared only via OVLATCH |
| 8 SET | Window Tolerance Select | GND = ±5%, VCC = ±10%, VCC/2 = ±15% - configures hysteresis band around nominal thresholds |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneously supervises 1.8V main rail (VCC) and user-adjustable secondary rail (VCC2), enabling compact dual-rail power sequencing |
| Latched overvoltage detection | OVLATCH pin provides nonvolatile fault capture - critical for diagnosing intermittent overvoltage events in automotive ECUs |
| Factory-trimmed 1.8V thresholds | Eliminates need for external resistors or calibration; ±1.5% initial accuracy over temperature ensures reliable 1.8V core supply monitoring |
| 100ms reset timeout (D3) | Guarantees microprocessor remains held in reset long enough for power stabilization and clock lock after brownout recovery |
| Low 13µA quiescent current | Enables continuous supervision in always-on domains (e.g., CAN wake-up circuits) without impacting system standby budget |
| TDFN-8 package with EP | 3mm × 3mm footprint and thermal pad support high-density layout and efficient heat dissipation in thermally constrained modules |
Applications
| Automotive Engine Control Unit (ECU) | Industrial DC-DC Converter Module |
|---|---|
Use Scenario: Monitoring 1.8V microcontroller core supply and 0.9V I/O rail in engine control units exposed to wide temperature swings and load dump transients. IC Role / Device Role / Timing Role: Dual-rail supervisor asserting latched OV on 1.8V rail overvoltage and timed UV on either rail failure, triggering safe shutdown sequence. Use Value: Prevents corrupted firmware execution during voltage faults; latched OV enables post-fault diagnostics without losing fault state. |
Use Scenario: Supervising input (12V) and isolated output (1.8V) rails of a flyback DC-DC converter in programmable logic controllers. IC Role / Device Role / Timing Role: Detects undervoltage on regulated 1.8V output and overvoltage on unregulated 12V input, with independent open-drain outputs feeding system watchdog. Use Value: Enables fast fault isolation - OV on input indicates upstream regulator failure; UV on output signals transformer or feedback loop fault. |
| Telecom Base Station Power Shelf | Medical Imaging Sensor Interface |
Use Scenario: Continuous supervision of redundant 3.3V and 1.8V power domains in 5G base station RF front-end modules operating at +85°C ambient. IC Role / Device Role / Timing Role: Provides fail-safe reset signaling with 100ms timeout and ±5% window (SET = GND) to meet IEC 61000-4-28 immunity requirements. Use Value: Ensures deterministic recovery after AC line sags; low 13µA ICC minimizes self-heating in sealed enclosures. |
Use Scenario: Monitoring bias rails (1.8V ADC reference, 0.9V sensor analog front-end) in portable ultrasound probe electronics. IC Role / Device Role / Timing Role: Dual open-drain UV/OV outputs feed FPGA configuration logic to halt data acquisition on any rail excursion beyond ±5%. Use Value: Prevents image artifacts from out-of-spec analog supply; TDFN-8 package fits tight space constraints near sensor array. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV809E33DBVR | Single 3.3V supervisor, no VCC2 input, no OV latch, SOT-23-5 package | Only monitors one rail; lacks dual-rail coordination and fault latching needed for safety-critical systems | Select only for cost-sensitive single-rail applications where latch and secondary monitoring are unnecessary |
| ADM1266ACPZ | 12-channel PMBus-programmable sequencer/supervisor in 64-lead LFCSP; supports custom thresholds and timing | Requires firmware configuration and PMBus interface; overqualified for simple dual-rail monitoring | Choose when multi-rail sequencing, telemetry, or field-upgradable thresholds are required - not a drop-in replacement |
Compared with TLV809E33DBVR and ADM1266ACPZ, the MAX6762TAWAD3+ uniquely delivers factory-configured dual-rail supervision with latched OV in a minimal 8-pin TDFN, eliminating programming overhead while meeting ASIL-B fault detection requirements for automotive subsystems.
Availability
MAX6762TAWAD3+ is available at Aetrix Electronics and suitable for automotive ECU design, industrial DC-DC converter qualification, and medical sensor interface development requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6762TAWAD3+ 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, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.
The MAX6754–MAX6764 family was engineered specifically for high-reliability power rail supervision in harsh environments, emphasizing low quiescent current, wide temperature operation, and configurable window detection without external components.
FAQ
What voltage rails does the MAX6762TAWAD3+ monitor?
The MAX6762TAWAD3+ monitors two voltage rails: VCC at a factory-trimmed 1.8V nominal (UVTH = 1.62–1.98V, OVTH = 1.89–2.16V) and VCC2 via an externally adjustable divider targeting 0.4255V at the input, supporting monitoring of supplies from 0.9V to 5V. This dual-monitoring capability makes MAX6762TAWAD3+ ideal for systems with multiple critical power domains.
How does the latched overvoltage function work on the MAX6762TAWAD3+?
The MAX6762TAWAD3+ uses the OVLATCH pin to control latching: driving OVLATCH high latches the OV output during any VCC or VCC2 overvoltage event, and the latch persists until OVLATCH is driven low after the fault clears. This behavior ensures fault detection is retained for diagnostics - a key requirement in automotive and industrial safety systems using MAX6762TAWAD3+.
What is the purpose of the SET pin on the MAX6762TAWAD3+?
The SET pin on MAX6762TAWAD3+ selects the voltage window tolerance: connecting SET to GND configures ±5%, to VCC configures ±10%, and biasing to VCC/2 configures ±15%. This adjusts hysteresis around the nominal thresholds, allowing designers to trade off noise immunity against detection sensitivity - critical for noisy automotive or industrial power rails monitored by MAX6762TAWAD3+
Does the MAX6762TAWAD3+ require external components for basic operation?
No, the MAX6762TAWAD3+ operates autonomously with no external resistors or capacitors required for its core dual-supply monitoring function. Only the VCC2 divider network (two resistors) is needed if monitoring a nonstandard rail; the 1.8V VCC monitoring is fully internal. This simplifies BOM and layout for applications relying on MAX6762TAWAD3+ in space-constrained or high-reliability designs.
What is the guaranteed operating temperature range for the MAX6762TAWAD3+?
The MAX6762TAWAD3+ is specified over -40°C to +125°C, with all electrical parameters guaranteed across this full extended temperature range. This qualification enables use in under-hood automotive locations, industrial motor drives, and outdoor telecom equipment - environments where standard commercial-grade supervisors would fail, but MAX6762TAWAD3+ maintains reliable operation.
MAX6762TAWAD3+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 1.8V, Adj
- Output:
- Open Drain or Open Collector
- Reset:
- 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:
- 8-TDFN-EP (3x3)
MAX6762TAWAD3+ FAQ
1.How can I place an order for MAX6762TAWAD3+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6762TAWAD3+ 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+ reliable?
The price and inventory of MAX6762TAWAD3+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6762TAWAD3+ is usually 5 days.
3.What payment methods are accepted for MAX6762TAWAD3+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6762TAWAD3+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6762TAWAD3+?
MAX6762TAWAD3+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6762TAWAD3+ 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+?
For technical support, including MAX6762TAWAD3+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6762TAWAD3+ requirements.
6.How does Aetrix verify that MAX6762TAWAD3+ is sourced from the original manufacturer or authorized distributors?
All MAX6762TAWAD3+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX6762TAWAD3+?
All MAX6762TAWAD3+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6762TAWAD3+, 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+ part is unused and in its original packaging.
Return procedure for MAX6762TAWAD3+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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