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Analog Devices Inc./Maxim Integrated MAX6360TWUT-T
- Part No.:
- MAX6360TWUT-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6360TWUT-T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:7,500
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Product details
Overview
The MAX6360TWUT-T from Maxim Integrated is a dual-voltage microprocessor supervisory circuit with active-low push-pull reset output referenced to VCC2, factory-set VCC1 threshold of 3.08V and VCC2 threshold of 1.67V, 20µA supply current, 100ms minimum reset pulse width, and integrated watchdog timer featuring 46.4s startup and 2.9s normal timeout periods-designed for reliable power monitoring in multivoltage embedded systems.
For engineers reviewing the MAX6360TWUT-T datasheet, MAX6360TWUT-T pinout, MAX6360TWUT-T application, or MAX6360TWUT-T equivalent, this page delivers verified electrical parameters, validated SOT23-6 pin mapping, confirmed watchdog timing behavior, and real-world use cases in battery-powered controllers and portable instrumentation where dual-rail voltage supervision and fail-safe reset assertion are critical.
Technical Context
The MAX6360TWUT-T implements independent precision voltage comparators for VCC1 and VCC2, asserting reset whenever either supply falls below its respective factory-trimmed threshold (3.08V/1.67V). Its reset output remains valid as long as either VCC1 ≥ 1.0V or VCC2 ≥ 1.0V, enabling robust operation during brownout conditions.
It integrates a dual-mode watchdog timer: a 46.4s startup timeout allows full system initialization after power-up or manual reset, followed by a 2.9s normal timeout that requires periodic WDI transitions to prevent reset assertion-ensuring continuous μP activity monitoring without false triggers during boot sequences.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 3.08V ±0.08V (factory-trimmed; guarantees reset assertion when primary supply drops below nominal 3.3V rail) |
| VCC2 Threshold | 1.67V ±0.05V (factory-trimmed; enables supervision of low-voltage rails such as 1.8V or 1.5V logic domains) |
| Supply Current | 20µA typical (enables ultra-low-power operation in battery-backed or energy-constrained systems) |
| Reset Pulse Width | 100ms minimum (ensures sufficient duration for μP reset initialization across diverse clock domains) |
| Watchdog Startup Timeout | 46.4s (provides extended window for complex firmware boot before watchdog enforcement begins) |
| Watchdog Normal Timeout | 2.9s (detects processor lockup or software hang within sub-3-second latency for safety-critical response) |
| Operating Temperature | -40°C to +85°C (fully specified for industrial and extended-temperature embedded deployments) |
Pinout & Package
MAX6360TWUT-T is housed in a 6-pin SOT23 package (U6-1 outline), with 1.6mm × 2.9mm footprint and 0.95mm height-compatible with standard high-density PCB assembly processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for all internal comparators, watchdog logic, and reset driver |
| 2 | VCC2 | Secondary supply input; powers device when above VCC1 and monitored at 1.67V threshold |
| 3 | MR | Active-low debounced manual-reset input; forces reset while asserted and holds for timeout after release |
| 4 | RST2 | Active-low push-pull reset output referenced to VCC2; drives low to VSS or high to VCC2 (not open-drain) |
| 5 | WDI | Watchdog input; rising/falling edge resets timer; unconnected disables watchdog function |
| 6 | VCC1 | Primary supply input; powers device when above VCC2 and monitored at 3.08V threshold |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage thresholds | Factory-trimmed 3.08V/1.67V pair eliminates external resistor networks and calibration effort |
| Push-pull RST2 referenced to VCC2 | Eliminates need for external pull-up resistors and ensures defined logic levels under all VCC2 operating conditions |
| Guaranteed RESET validity down to VCC1 = 1.0V or VCC2 = 1.0V | Enables deterministic reset assertion even during deep brownout-critical for nonvolatile memory write protection |
| Debounced TTL/CMOS-compatible MR input | Rejects <100ns glitches and supports direct connection to mechanical switches or digital GPIO without external filtering |
| Power-supply transient immunity | Withstands >100µs negative transients at up to 1.0V overdrive-prevents spurious resets from switching noise or load dumps |
Applications
| Battery-Powered Portable Instrumentation | Multivoltage Industrial Controller |
|---|---|
|
Use Scenario: Handheld test equipment powered by single-cell Li-ion (3.0–4.2V) and regulated 1.8V logic rail. IC Role / Device Role / Timing Role: Supervises both rails simultaneously; asserts RST2 on VCC2 drop to protect 1.8V FPGA configuration memory during low-battery shutdown. Use Value: Prevents corrupted configuration writes by guaranteeing reset assertion before VCC2 falls below 1.67V-enabling safe power-down sequencing. |
Use Scenario: PLC I/O module with isolated 5V field bus and 3.3V microcontroller domain. IC Role / Device Role / Timing Role: Monitors 3.3V controller rail (VCC1) and 1.8V ADC reference rail (VCC2); uses WDI to verify firmware heartbeat. Use Value: Dual-threshold supervision plus watchdog ensures both power integrity and software liveliness-meeting SIL-2 functional safety requirements. |
| Low-Power Edge Sensor Node | Embedded Medical Diagnostic Device |
|
Use Scenario: Wireless sensor node using buck-boost converter to maintain 3.08V MCU rail and 1.67V sensor interface rail from coin cell. IC Role / Device Role / Timing Role: Provides synchronized reset to MCU and analog front-end upon either rail collapse; leverages 20µA quiescent current to extend battery life. Use Value: Enables reliable wake-from-sleep recovery and prevents metastable states during intermittent power dips common in energy-harvesting systems. |
Use Scenario: Portable ECG monitor with dual 3.3V analog signal chain and 1.67V low-noise amplifier supply. IC Role / Device Role / Timing Role: Ensures clean power-on reset and monitors analog rail integrity; RST2 referenced to VCC2 guarantees correct reset level for sensitive analog circuitry. Use Value: Eliminates signal corruption during power transitions-critical for clinical-grade waveform fidelity and regulatory compliance (IEC 60601). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6359TWUT-T | Identical VCC1/VCC2 thresholds (3.08V/1.67V) but RST output referenced to VCC1 instead of VCC2; same watchdog and MR functionality | Requires reset load connected to VCC1 domain; unsuitable when reset must track VCC2 logic levels | Select MAX6359TWUT-T only if system reset signaling originates from the higher-voltage rail |
| TPS3808G30DBVR | Single-supply supervisor (3.0V threshold only); no VCC2 monitoring or dual-rail capability; no integrated watchdog timer | Lacks dual-voltage supervision and watchdog-requires external circuitry to replicate MAX6360TWUT-T functionality | Choose only for cost-sensitive single-rail applications where VCC2 monitoring and watchdog are unnecessary |
Compared with MAX6359TWUT-T, MAX6360TWUT-T provides VCC2-referenced reset essential for low-voltage domain control; versus TPS3808G30DBVR, it delivers integrated dual-threshold supervision and watchdog-reducing BOM count and board area while enhancing system-level reliability.
Availability
MAX6360TWUT-T is available at Aetrix Electronics and suitable for battery-powered instrumentation, multivoltage industrial controllers, and low-power edge sensor nodes requiring stable component supply, guaranteed RoHS-compliant sourcing, and long-term lifecycle support.
Supply support for MAX6360TWUT-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
Maxim Integrated (now part of Analog Devices) designs precision analog and mixed-signal ICs for demanding industrial, medical, and communications applications-with emphasis on reliability, low power, and integration.
The MAX6351–MAX6360 family delivers dual- and triple-voltage µP supervisors optimized for systems requiring coordinated reset assertion across multiple power domains without external components.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6360TWUT-T?
The MAX6360TWUT-T has a factory-trimmed VCC1 threshold of 3.08V (±0.08V over temperature) and a VCC2 threshold of 1.67V (±0.05V over temperature), as specified in the Voltage Threshold Levels table and confirmed in the Electrical Characteristics section of the datasheet. These values are laser-trimmed during production and do not require external calibration. The "TW" suffix explicitly denotes this 3.08V/1.67V combination, and the MAX6360TWUT-T maintains these thresholds across its full -40°C to +85°C operating range.
Does the MAX6360TWUT-T provide a reset output referenced to VCC2, and what is its drive capability?
Yes, the MAX6360TWUT-T provides an active-low push-pull reset output labeled RST2 on pin 4, which is explicitly referenced to VCC2-not open-drain or VCC1-referenced. Per the datasheet, RST2 drives low to GND and high to VCC2, with VOL ≤ 0.3V at ISINK = 50µA (over full temperature range) and VOH ≥ 0.8 × VCC2 when sourcing 350µA. This eliminates external pull-up resistors and ensures compatible logic levels for circuits powered by the same VCC2 rail.
How does the watchdog timer in the MAX6360TWUT-T operate, and what are its timeout periods?
The MAX6360TWUT-T watchdog timer operates in two distinct modes: a 46.4s startup timeout initiated after any reset event (power-up, MR, or watchdog timeout), followed by a 2.9s normal timeout once the system is operational. The timer resets on any WDI edge (high-to-low or low-to-high); failure to toggle WDI within the active timeout period asserts RST2. This architecture prevents premature resets during boot while ensuring rapid detection of runtime hangs-verified in the Electrical Characteristics table under "Watchdog Timeout Period".
Can the MAX6360TWUT-T remain functional when one supply drops below 1.0V?
No-the MAX6360TWUT-T guarantees valid reset output only while at least one supply remains ≥ 1.0V: specifically, RESET remains asserted or deasserted correctly as long as VCC1 ≥ 1.0V *or* VCC2 ≥ 1.0V. Below 1.0V on both rails, internal biasing fails and reset state becomes undefined. This behavior is explicitly stated in the Absolute Maximum Ratings and Electrical Characteristics sections, and is fundamental to the device's brownout resilience design-ensuring predictable reset action down to the 1.0V boundary but not beyond.
What package type and RoHS status does the MAX6360TWUT-T use?
The MAX6360TWUT-T is supplied in a 6-pin SOT23 package (outline U6-1, land pattern 90-0175), with dimensions 1.6mm × 2.9mm × 0.95mm. The "-T" suffix indicates lead-free (RoHS-compliant) packaging per Maxim Integrated's ordering conventions; leaded versions use "-UK-T" or similar variants. This package is qualified for reflow soldering and supports automated high-volume assembly, with thermal performance rated at 695mW dissipation at +70°C ambient.
MAX6360TWUT-T 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:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 1.67V, 3.08V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
MAX6360TWUT-T FAQ
1.How can I place an order for MAX6360TWUT-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6360TWUT-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 MAX6360TWUT-T reliable?
The price and inventory of MAX6360TWUT-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6360TWUT-T is usually 5 days.
3.What payment methods are accepted for MAX6360TWUT-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6360TWUT-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6360TWUT-T?
MAX6360TWUT-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6360TWUT-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 MAX6360TWUT-T?
For technical support, including MAX6360TWUT-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6360TWUT-T requirements.
6.How does Aetrix verify that MAX6360TWUT-T is sourced from the original manufacturer or authorized distributors?
All MAX6360TWUT-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 MAX6360TWUT-T meets industry standards.
7.What is the process for return or replacement of MAX6360TWUT-T?
All MAX6360TWUT-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6360TWUT-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 MAX6360TWUT-T part is unused and in its original packaging.
Return procedure for MAX6360TWUT-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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