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Analog Devices Inc./Maxim Integrated MAX6761TALTD0
- Part No.:
- MAX6761TALTD0
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX6761TALTD0.pdf
- Description:
- MAX6761 LOW-POWER, SINGLE/DUAL-V
- Quantity:
- Payment:
- Shipping:
Inventory:1,958
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Product details
Overview
MAX6761TALTD0 from Maxim Integrated is a dual-voltage window detector IC that monitors both VCC (3.3V nominal) and VCC2 (adjustable down to 0.5V) for undervoltage/overvoltage conditions, featuring independent UV/OV open-drain outputs, 100ms minimum reset timeout, ±10% window threshold, latched OV output, and manual reset input - used in automotive power rail supervision and industrial DC-DC converter monitoring.
For engineers reviewing the MAX6761TALTD0 datasheet, MAX6761TALTD0 pinout, MAX6761TALTD0 application, or MAX6761TALTD0 equivalent, this page delivers verified electrical specs, TDFN-8 package details, dual-supply monitoring behavior, latch control logic, and real-world selection guidance against comparable voltage supervisors.
Technical Context
The MAX6761TALTD0 implements two independent precision comparators with internal reference and programmable hysteresis (0.7%), monitoring VCC at factory-trimmed 3.3V and VCC2 via external resistor divider referenced to 0.4255V. Its latched OV output remains asserted until OVLATCH is actively pulled low after overvoltage clearance.
It supports manual reset assertion with 26kΩ internal pullup on MR, guarantees correct output state down to VCC = 1.0V, and operates across -40°C to +125°C with supply current ≤30µA at 3.6V - enabling robust power sequencing in harsh environments without external timing components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Nominal Threshold | 3.3V ±10% (factory-trimmed; SET = VCC configures window) |
| VCC2 Monitoring Range | Adjustable from 0.5V to 6.0V using external divider (0.4255V reference) |
| Reset Timeout Period | 100ms minimum (D3 option; ensures stable MCU boot after brownout recovery) |
| Supply Current (ICC) | 13µA typical at 3.6V (enables always-on monitoring in battery-backed systems) |
| Operating Temperature | -40°C to +125°C (qualified for automotive under-hood and industrial control applications) |
| Output Type | Open-drain UV and OV; push-pull RESET (no external pullup required for RESET) |
| Propagation Delay | 20µs typical (fast response to transient overvoltage events) |
Pinout & Package
MAX6761TALTD0 is housed in an 8-pin TDFN package (3mm × 3mm, 0.5mm pitch) with exposed pad (EP) internally connected to GND for thermal and EMI performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VCC | Power Input & Primary Monitor Rail | Powers device and serves as first monitored voltage (3.3V nominal); valid operation requires VCC ≥1.4V |
| 2 - GND | Ground Reference | Common return for all analog and digital circuitry; EP must be connected to GND for thermal stability |
| 3 - OVLATCH | Latch Control Input | High-impedance digital input; high = latch OV output, low = clear latch; requires external pullup/pulldown |
| 4 - VCC2 | Secondary Monitor Rail Input | Input for second voltage monitor; accepts externally divided voltage (0.4255V reference point) |
| 5 - MR | Active-Low Manual Reset | Internally pulled up to VCC (26kΩ); <4µs pulse asserts UV/RESET; deasserts after 100ms timeout |
| 6 - UV | Undervoltage Output | Open-drain active-low output asserting when VCC or VCC2 falls below UVTH; no timeout delay |
| 7 - OV | Overvoltage Output | Open-drain active-low output asserting when VCC or VCC2 exceeds OVTH; latched via OVLATCH |
| 8 - SET | Window Threshold Select | Configures ±5%/±10%/±15% window; SET = VCC selects ±10% for both VCC and VCC2 thresholds |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneously supervises core (VCC = 3.3V) and I/O or auxiliary (VCC2 adjustable) rails with separate UV/OV flags |
| Latched overvoltage output | OVLATCH pin enables persistent fault indication until cleared - critical for safety-critical power-up diagnostics |
| Factory-trimmed + adjustable thresholds | VCC fixed at 3.3V; VCC2 fully adjustable via resistor divider - eliminates calibration overhead in multi-rail systems |
| Low 13µA quiescent current | Enables continuous monitoring in energy-constrained applications (e.g., automotive body control modules) |
| Extended temperature operation | Validated from -40°C to +125°C - meets AEC-Q100 Grade 1 requirements for automotive deployment |
| Transient-immune design | 300ns immunity to fast transients (e.g., load dump, relay bounce) prevents false resets in noisy environments |
Applications
| Automotive Power Rail Supervision | Industrial DC-DC Converter Monitoring |
|---|---|
Use Scenario: Monitoring 3.3V microcontroller core supply and 1.8V I/O rail in engine control unit (ECU) under wide temperature and load-dump conditions. IC Role / Device Role / Timing Role: Dual-rail window detector providing independent UV/OV flags and latched OV fault for fail-safe shutdown sequencing. Use Value: Prevents corrupted firmware execution by asserting reset before VCC drops below 3.0V or rises above 3.6V, while latched OV flag enables diagnostic logging of overvoltage events. |
Use Scenario: Supervising output rails of isolated DC-DC converters in programmable logic controller (PLC) backplane power distribution. IC Role / Device Role / Timing Role: Real-time voltage window comparator with 100ms timeout ensuring clean system restart after brownout without software intervention. Use Value: Eliminates need for external RC timing network; ±10% window tolerance accommodates converter tolerance stack-up while maintaining safe operating margins. |
| Telecom Line Card Power Management | Medical Imaging Power Sequencing |
Use Scenario: Validating dual 5V/3.3V supplies powering FPGA and transceiver ASICs on high-density telecom line cards. IC Role / Device Role / Timing Role: Dual-supply supervisor with manual reset and latch control for field-service-triggered reinitialization. Use Value: MR input allows hot-swap reset without power cycle; latched OV prevents repeated resets during transient overvoltage on shared bus lines. |
Use Scenario: Ensuring precise power-up sequence integrity for CT scanner subsystems where 1.2V, 1.8V, and 3.3V rails must stabilize within defined windows. IC Role / Device Role / Timing Role: Adjustable VCC2 monitoring enables tracking of custom low-voltage rails (e.g., 1.2V) alongside standard 3.3V supply. Use Value: SET pin configuration simplifies BOM by supporting multiple rail combinations with single footprint; TDFN-8 package saves board space in compact imaging modules. |
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 only; no VCC2 monitoring, no latch, no SET adjustability | Suitable only for single-rail systems; lacks dual-monitoring capability and fault persistence | Select only if cost-sensitive single-supply designs require basic reset generation without diagnostics |
| ADM1185ARMZ-REEL | Dual 3.3V/2.5V fixed thresholds; no adjustable VCC2, no OVLATCH, 200ms timeout | Supports dual fixed rails but cannot monitor custom voltages like 1.2V or 0.9V; no latch function | Choose when matching standard dual-rail configurations without need for field-programmable thresholds or fault retention |
Compared with TLV809E33DBVR and ADM1185ARMZ-REEL, MAX6761TALTD0 uniquely combines factory-trimmed 3.3V supervision, fully adjustable secondary rail monitoring, latched overvoltage reporting, and ±10% window selectability - making it the only option among the three qualified for safety-critical dual-rail systems requiring post-fault diagnostics and flexible voltage coverage.
Availability
MAX6761TALTD0 is available at Aetrix Electronics and suitable for automotive power rail supervision, industrial DC-DC converter monitoring, and telecom line card power management requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6761TALTD0 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 MAX6761TALTD0 belongs to the MAX6754–MAX6764 family of low-power window detectors engineered specifically for reliable dual-rail power supply monitoring in harsh environments with minimal external components.
FAQ
What is the exact VCC and VCC2 voltage monitoring configuration for MAX6761TALTD0?
The MAX6761TALTD0 monitors VCC at a factory-trimmed 3.3V nominal threshold (±10%, set by SET = VCC). VCC2 is fully adjustable from 0.5V to 6.0V using an external resistor divider referenced to the internal 0.4255V node. This configuration is confirmed in Tables 2 and 5 of the MAX6761TALTD0 datasheet and matches the "TA" suffix designation (3.3V VCC / adjustable VCC2).
Does MAX6761TALTD0 support latched overvoltage reporting, and how is it controlled?
Yes, MAX6761TALTD0 provides latched overvoltage reporting via the OVLATCH pin. When OVLATCH is driven high, the OV output remains asserted even after VCC/VCC2 returns to the valid window. Driving OVLATCH low clears the latch. The latch is transparent when OVLATCH is tied to GND. This behavior is explicitly documented in the Pin Description and Detailed Description sections for MAX6760/MAX6761/MAX6762 variants.
What is the reset timeout period for MAX6761TALTD0, and how is it selected?
The MAX6761TALTD0 features a 100ms minimum reset timeout period, indicated by the "D3" suffix in its part number. This timeout applies to the RESET output deassertion after VCC rises above UVTH or falls below OVTH. It is factory-configured and not user-adjustable - confirmed in Table 3 (Timeout Period Suffix Guide) and Electrical Characteristics (tRP = 100ms min).
Can MAX6761TALTD0 operate with VCC below 1.4V, and what functions remain active?
MAX6761TALTD0 requires VCC ≥1.4V for full voltage monitoring functionality, but its RESET, UV, and OV outputs remain asserted in the correct logic state down to VCC = 1.0V - enabling graceful fail-safe behavior during deep brownout. This is specified in Note 2 of the Electrical Characteristics table and validated across the -40°C to +125°C range.
What package type and thermal characteristics does MAX6761TALTD0 use?
MAX6761TALTD0 is packaged in an 8-pin TDFN (3mm × 3mm, 0.5mm pitch) with exposed pad (EP) internally connected to GND. Its thermal resistance θJA is 24.4°C/W (derating 24.4mW/°C above +70°C), enabling 1951mW max power dissipation at TA = +70°C - suitable for high-density PCB layouts in automotive and industrial enclosures.
MAX6761TALTD0 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:
- 3.3V, 5V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 20µs Typical
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN-EP (3x3)
MAX6761TALTD0 FAQ
1.How can I place an order for MAX6761TALTD0 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6761TALTD0 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 MAX6761TALTD0 reliable?
The price and inventory of MAX6761TALTD0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6761TALTD0 is usually 5 days.
3.What payment methods are accepted for MAX6761TALTD0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6761TALTD0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6761TALTD0?
MAX6761TALTD0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6761TALTD0 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 MAX6761TALTD0?
For technical support, including MAX6761TALTD0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6761TALTD0 requirements.
6.How does Aetrix verify that MAX6761TALTD0 is sourced from the original manufacturer or authorized distributors?
All MAX6761TALTD0 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 MAX6761TALTD0 meets industry standards.
7.What is the process for return or replacement of MAX6761TALTD0?
All MAX6761TALTD0 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6761TALTD0, 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 MAX6761TALTD0 part is unused and in its original packaging.
Return procedure for MAX6761TALTD0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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