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Analog Devices Inc./Maxim Integrated MAX6762TALRD3
- Part No.:
- MAX6762TALRD3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX6762TALRD3.pdf
- Description:
- MAX6762 LOW-POWER, SINGLE/DUAL-V
- Quantity:
- Payment:
- Shipping:
Inventory:2,402
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Product details
Overview
MAX6762TALRD3 from Maxim Integrated is a dual-voltage window detector IC that monitors both VCC (3.3V nominal) and VCC2 (1.8V nominal) supply rails for undervoltage/overvoltage conditions, featuring independent UV/OV open-drain outputs, 100ms minimum reset timeout, ±5% threshold window, latched overvoltage output, and manual reset input - used in microprocessor power supervision for telecom and industrial embedded systems.
For engineers reviewing the MAX6762TALRD3 datasheet, MAX6762TALRD3 pinout, MAX6762TALRD3 application, or MAX6762TALRD3 equivalent, key selection considerations include dual-rail monitoring capability, factory-trimmed 3.3V/1.8V thresholds, latched OV behavior, TDFN-8 package compatibility, and -40°C to +125°C operation for harsh-environment power integrity assurance.
Technical Context
The MAX6762TALRD3 implements two independent voltage comparators with internal reference and hysteresis (0.7%), each monitoring one rail: VCC at 3.3V nominal (±5% window = 3.135V–3.465V UV/OV), VCC2 at 1.8V nominal (±5% window = 1.710V–1.890V UV/OV). It uses a single SET pin to configure window width and includes OVLATCH for persistent overvoltage flagging.
Its functional architecture integrates manual reset (MR) with 26kΩ internal pull-up, push-pull-compatible open-drain outputs (UV, OV), and guaranteed output validity down to VCC ≥ 1.0V. The device asserts UV when either rail falls below its UVTH or MR is pulled low, and asserts OV only on overvoltage events - with latch persistence until cleared via OVLATCH.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Nominal Threshold | 3.3V ±5% (3.135V UVTH / 3.465V OVTH) - factory-trimmed for I/O supply monitoring |
| VCC2 Nominal Threshold | 1.8V ±5% (1.710V UVTH / 1.890V OVTH) - factory-trimmed for core supply monitoring |
| Reset Timeout Period | 100ms minimum - ensures stable µP reset after supply recovery |
| Supply Current | 13µA typical at VCC = 3.6V - enables always-on supervision in low-power systems |
| Operating Temperature | -40°C to +125°C - qualified for automotive under-hood and industrial control environments |
| Output Type | Open-drain UV and OV - supports wired-OR logic and flexible voltage-level translation |
| Threshold Hysteresis | 0.7% - prevents chatter during slow-moving or noisy supply transitions |
Pinout & Package
MAX6762TALRD3 is housed in an 8-pin TDFN package (3mm × 3mm, 0.75mm height) with exposed pad (EP) internally connected to GND for thermal and EMI performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Main power input and first monitored supply (3.3V nominal) |
| 2 | GND | Ground reference for all circuitry and EP connection point |
| 3 | OVLATCH | Active-high latch control: high = latch OV, low = clear latch |
| 4 | VCC2 | Second monitored supply input (1.8V nominal) |
| 5 | MR | Active-low manual reset input with 26kΩ internal pull-up to VCC |
| 6 | UV | Open-drain undervoltage output - asserted low on any UV condition or MR low |
| 7 | OV | Open-drain overvoltage output - asserted low on any OV condition; latched if OVLATCH high |
| 8 | SET | Window select input: GND = ±5%, VCC = ±10%, VCC/2 = ±15% |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneously supervises 3.3V I/O and 1.8V core rails with separate UV/OV flags |
| Latched overvoltage output | OVLATCH pin enables persistent fault capture until system intervention - critical for safety-critical diagnostics |
| Factory-trimmed precision thresholds | ±1.5% max total error over -40°C to +125°C - eliminates external calibration components |
| Low quiescent current | 13µA typical ICC - extends battery life in always-on backup supervision circuits |
| Robust manual reset interface | 4µs minimum MR pulse width + 300ns transient immunity - immune to board-level noise glitches |
| Wide operating voltage range | Valid outputs with VCC ≥ 1.0V - ensures reliable reset assertion during brownout recovery |
Applications
| Telecom Power Management | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Monitoring dual-rail DC-DC converters powering FPGA I/O banks and core logic in 5G base station radios. IC Role / Device Role / Timing Role: Dual-supply window detector providing independent UV/OV flags with latched OV for fault logging and automatic shutdown sequencing. Use Value: Prevents FPGA configuration corruption by asserting UV before core voltage drops below 1.71V and holding OV latch until maintenance reset. |
Use Scenario: Supervising 24V-to-3.3V and 24V-to-1.8V isolated supplies feeding PLC controller and analog I/O ASICs. IC Role / Device Role / Timing Role: Fault-detection hub generating synchronized reset pulses and latched overvoltage alerts for redundant power path management. Use Value: Enables deterministic fail-safe state transition via 100ms timeout and MR-triggered emergency halt without software dependency. |
| Automotive ADAS Domain Controller | Server BMC Power Sequencing |
Use Scenario: Validating 3.3V CAN transceiver and 1.8V vision processor supplies in camera ECU under engine cranking conditions. IC Role / Device Role / Timing Role: Dual-rail supervisor with extended temperature range ensuring valid reset assertion during cold-start (-40°C) and hot-idle (+125°C) operation. Use Value: Guarantees safe boot sequence by holding UV low until both rails stabilize above 3.135V/1.710V with 0.7% hysteresis against ripple-induced false triggers. |
Use Scenario: Coordinating power-good signaling between server motherboard BMC and multi-phase VRMs supplying CPU and memory rails. IC Role / Device Role / Timing Role: Hardware-enforced sequencing monitor generating independent UV/OV status flags for BMC firmware validation and telemetry. Use Value: Provides traceable, timestampable fault records via latched OV output - essential for datacenter root-cause analysis and predictive maintenance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage window detection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6761TALRD3 | Same pinout and electrical specs, but UV output is active-high push-pull instead of open-drain | Requires level-shifting or redesign if downstream logic expects active-low open-drain UV | Select when interfacing with legacy µP reset inputs requiring active-high assertion |
| TPS3808G33DBVR | Single-supply (3.3V only), no VCC2 input or OVLATCH; 200ms timeout, ±2% accuracy | Cannot supervise dual rails or provide latched OV - unsuitable for core+I/O monitoring | Choose only for cost-sensitive single-rail applications where latch functionality is unnecessary |
Compared with MAX6762TALRD3, MAX6761TALRD3 offers identical timing and thresholds but different UV polarity, while TPS3808G33DBVR lacks dual-rail capability and fault latching - making MAX6762TALRD3 uniquely suited for safety-aware, multi-supply systems requiring persistent overvoltage capture.
Availability
MAX6762TALRD3 is available at Aetrix Electronics and suitable for telecom infrastructure, industrial PLCs, automotive ADAS controllers, and server BMC designs requiring stable component supply across extended temperature and long product lifecycles.
Supply support for MAX6762TALRD3 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 demanding industrial, automotive, and communications applications.
The MAX6762TALRD3 belongs to the MAX6754–MAX6764 family of low-power window detectors engineered specifically for robust, dual-rail power supply supervision in mission-critical embedded systems.
FAQ
What voltage rails does the MAX6762TALRD3 monitor?
The MAX6762TALRD3 monitors two independent supply rails: VCC at 3.3V nominal (±5% window = 3.135V–3.465V) and VCC2 at 1.8V nominal (±5% window = 1.710V–1.890V). Both thresholds are factory-trimmed and specified over -40°C to +125°C. The MAX6762TALRD3 asserts UV when either rail falls below its undervoltage threshold or MR is pulled low, and asserts OV only on overvoltage events - with latch persistence if OVLATCH is high.
What is the function of the OVLATCH pin on the MAX6762TALRD3?
The OVLATCH pin on the MAX6762TALRD3 controls latching behavior of the OV output: driving OVLATCH high latches the OV flag upon any overvoltage event on VCC or VCC2, and holding it low makes OV transparent (immediate deassertion when voltage returns to spec). The latch remains set until OVLATCH is actively pulled low after fault clearance. This enables nonvolatile fault capture for diagnostic logging in the MAX6762TALRD3's dual-supply supervision role.
Does the MAX6762TALRD3 support adjustable voltage thresholds?
No - the MAX6762TALRD3 features factory-fixed thresholds: VCC = 3.3V nominal and VCC2 = 1.8V nominal, with ±5% window selected by grounding the SET pin. Unlike MAX6763/MAX6764, it does not support externally adjustable thresholds. The SET pin only configures window width (±5%/±10%/±15%) - not nominal voltage - and the MAX6762TALRD3's internal resistor dividers are trimmed during manufacturing for precise 3.3V/1.8V detection.
What is the reset timeout behavior of the MAX6762TALRD3?
The MAX6762TALRD3 provides a 100ms minimum reset timeout period (D3 suffix), meaning the UV output remains asserted for ≥100ms after VCC and VCC2 rise above their respective UV thresholds. This ensures reliable microprocessor reset hold time during supply recovery. The timeout starts upon voltage crossing UVTH and is independent of OV events. The MAX6762TALRD3 guarantees this timing over full temperature and voltage ranges per its datasheet specification.
Can the MAX6762TALRD3 operate with VCC below 3.3V?
Yes - the MAX6762TALRD3 functions with VCC as low as 1.0V, though accurate voltage monitoring requires VCC ≥ 1.4V. Its outputs remain valid and correctly asserted down to VCC = 1.0V, enabling brownout detection and controlled shutdown. The UV and OV outputs maintain proper logic states even during deep undervoltage conditions, a key reliability feature of the MAX6762TALRD3 for fail-safe system design.
MAX6762TALRD3 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:
- Power Supply Monitor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 3V, 5V
- 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)
MAX6762TALRD3 FAQ
1.How can I place an order for MAX6762TALRD3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6762TALRD3 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 MAX6762TALRD3 reliable?
The price and inventory of MAX6762TALRD3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6762TALRD3 is usually 5 days.
3.What payment methods are accepted for MAX6762TALRD3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6762TALRD3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6762TALRD3?
MAX6762TALRD3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6762TALRD3 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 MAX6762TALRD3?
For technical support, including MAX6762TALRD3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6762TALRD3 requirements.
6.How does Aetrix verify that MAX6762TALRD3 is sourced from the original manufacturer or authorized distributors?
All MAX6762TALRD3 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 MAX6762TALRD3 meets industry standards.
7.What is the process for return or replacement of MAX6762TALRD3?
All MAX6762TALRD3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6762TALRD3, 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 MAX6762TALRD3 part is unused and in its original packaging.
Return procedure for MAX6762TALRD3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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