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Analog Devices Inc./Maxim Integrated MAX6360MSUT+T
- Part No.:
- MAX6360MSUT+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6360MSUT+T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
The MAX6360MSUT+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 4.38V and VCC2 threshold of 2.93V, 20µA supply current, and integrated watchdog timer featuring 46.4s startup and 2.9s normal timeout periods-used in multivoltage embedded systems requiring reliable power-up sequencing and processor activity monitoring.
For engineers reviewing the MAX6360MSUT+T datasheet, MAX6360MSUT+T pinout, MAX6360MSUT+T application, or MAX6360MSUT+T equivalent, key selection considerations include dual-supply reset assertion logic, VCC2-referenced RST2 output compatibility with 2.93V-rail peripherals, watchdog timing behavior under cold-start conditions, and SOT23-6 footprint constraints for space-constrained industrial controllers.
Technical Context
The MAX6360MSUT+T implements independent voltage monitoring on two supplies (VCC1 and VCC2), asserting reset whenever either drops below its precision factory-trimmed threshold (4.38V/2.93V). Its reset output (RST2) is push-pull and referenced to VCC2, ensuring valid logic levels even when VCC1 falls below 1.0V-as long as VCC2 remains ≥1.0V.
It integrates a dual-mode watchdog timer: a 46.4s startup timeout enables full system initialization after power-on or manual reset, followed by a 2.9s normal timeout that requires periodic WDI transitions to prevent reset assertion-supporting robust firmware hang detection in battery-powered instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.38V ±0.08V (factory-trimmed; ensures reset assertion when primary 4.5V rail sags below safe operating level) |
| VCC2 Threshold | 2.93V ±0.05V (factory-trimmed; triggers reset if secondary 3.0V rail dips during brownout) |
| Supply Current | 20µA typical (enables >10-year battery life in always-on portable equipment) |
| Reset Pulse Width | 100ms minimum (guarantees sufficient duration for μP reset deassertion and clock stabilization) |
| Watchdog Startup Timeout | 46.4s (provides margin for bootloader execution and peripheral initialization before watchdog enforcement begins) |
| Watchdog Normal Timeout | 2.9s (detects firmware lockup within sub-3-second window without false triggers from transient delays) |
| Operating Temp Range | -40°C to +85°C (fully specified for industrial-grade operation without derating) |
Pinout & Package
MAX6360MSUT+T is housed in a 6-pin SOT23 package (U6-1 outline, 90-0175 land pattern), with 1.27mm pitch, 2.8mm × 2.9mm body size, and RoHS-compliant lead(Pb)-free construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST2 | Active-low push-pull reset output referenced to VCC2; drives low during fault or watchdog timeout; compatible with 2.93V-rail logic interfaces |
| 2 | GND | Ground reference for internal comparators, watchdog timer, and reset generator |
| 3 | MR | Debounced manual-reset input; pull low to force reset; internally pulled up (~63.5kΩ); valid at VCC1 ≥1.2V |
| 4 | VCC2 | Secondary supply input and monitor rail; powers internal circuitry when VCC2 > VCC1; threshold = 2.93V |
| 5 | WDI | Watchdog input; rising or falling edge clears timer; unconnected disables watchdog function |
| 6 | VCC1 | Primary supply input and monitor rail; threshold = 4.38V; powers device when VCC1 > VCC2 |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous 4.38V and 2.93V thresholds enable coordinated reset across 4.5V/3.0V dual-rail systems without external components |
| VCC2-referenced RST2 output | Push-pull drive referenced to VCC2 ensures clean logic-level reset signal even if VCC1 collapses to 1.0V |
| Dual-mode watchdog timer | 46.4s startup timeout accommodates full boot sequence; 2.9s normal timeout provides rapid hang detection post-initialization |
| Guaranteed reset validity down to 1.0V | RESET remains asserted and valid as long as either VCC1 ≥1.0V or VCC2 ≥1.0V-critical for graceful shutdown during deep brownouts |
| 20µA ultra-low quiescent current | Enables integration into always-on battery-backed systems with multi-year operational lifetime |
Applications
| Industrial PLC Controllers | Battery-Powered Data Loggers |
|---|---|
Use Scenario: Programmable logic controllers operating from dual 24V-derived rails (5V logic + 3.3V I/O) in factory automation environments subject to line transients. IC Role / Device Role / Timing Role: Dual-voltage supervisor monitors both rails and asserts RST2 (VCC2-referenced) to hold controller in reset until both supplies stabilize; watchdog verifies firmware execution during runtime. Use Value: Prevents erratic operation during AC line sags by enforcing synchronized reset across voltage domains and detecting firmware hangs via 2.9s timeout-reducing field failures by eliminating partial-boot states. | Use Scenario: Remote environmental sensors powered by coin-cell batteries, logging temperature/humidity every 10 minutes with wake-on-interrupt operation. IC Role / Device Role / Timing Role: Supervises 3.0V sensor rail (VCC2) and 4.38V MCU rail (VCC1); RST2 ensures clean reset of 3.0V peripherals; 20µA current extends battery life beyond 5 years. Use Value: Enables reliable cold-start under weak battery conditions (VCC2 ≥1.0V suffices for valid reset), while 46.4s watchdog startup avoids false resets during slow battery ramp-up. |
| Medical Point-of-Care Devices | Automotive Body Control Modules |
Use Scenario: Portable diagnostic instruments with isolated 5V analog front-end and 3.0V digital subsystem, requiring fail-safe power sequencing and FDA-mandated self-test coverage. IC Role / Device Role / Timing Role: Monitors both rails independently; asserts RST2 to halt digital processing if 3.0V rail fails; watchdog enforces periodic firmware health checks per IEC 62304. Use Value: Guarantees deterministic reset behavior during power faults and satisfies regulatory requirements for automatic fault detection-no external RC timing components needed. | Use Scenario: In-vehicle lighting controllers exposed to load-dump and cold-crank conditions, where 12V-to-5V/3.3V DC-DC outputs may sag simultaneously. IC Role / Device Role / Timing Role: Tracks 4.38V (5V rail) and 2.93V (3.3V rail); RST2 output tied to 3.3V domain logic; watchdog detects MCU lockup caused by EMI-induced crashes. Use Value: Maintains reset assertion through 1.0V brownout events common during cold-crank, preventing undefined MCU states; 2.9s timeout catches intermittent software faults missed by shorter watchdog windows. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6354MSUT+T | No watchdog timer; identical VCC1/VCC2 thresholds (4.38V/2.93V) and RST2 push-pull output | Suitable only where processor activity monitoring is handled externally or not required | Select when watchdog functionality adds unnecessary complexity or cost; same pinout and footprint |
| TPS3808G33DBVR | Single-supply (3.3V only), no VCC1/VCC2 dual monitoring; 3.08V threshold; no integrated watchdog | Limited to single-rail systems; requires external circuitry for dual-voltage supervision | Choose only for cost-sensitive 3.3V-only designs where dual monitoring is unnecessary |
Compared with MAX6360MSUT+T, MAX6354MSUT+T removes watchdog capability while preserving identical dual-threshold supervision and VCC2-referenced reset-ideal for simplified systems-whereas TPS3808G33DBVR offers lower cost but sacrifices dual-rail monitoring and watchdog, requiring redesign for multivoltage use cases.
Availability
MAX6360MSUT+T is available at Aetrix Electronics and suitable for industrial PLC controllers, battery-powered data loggers, medical point-of-care devices, and automotive body control modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX6360MSUT+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 high-performance analog and mixed-signal ICs for industrial, communications, computing, and consumer applications.
The MAX6351–MAX6360 family delivers precision dual- and triple-voltage supervision with integrated watchdog timers, targeting multirail embedded systems where reliability, low power, and guaranteed reset validity down to 1.0V are critical design requirements.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6360MSUT+T?
The MAX6360MSUT+T has a factory-set VCC1 threshold of 4.38V (±0.08V over -40°C to +85°C) and a VCC2 threshold of 2.93V (±0.05V over temperature). These values are confirmed in the Voltage-Threshold Levels table and Electrical Characteristics section of the official datasheet, with the "MS" suffix explicitly mapping to this combination.
Does the MAX6360MSUT+T provide a reset output referenced to VCC1 or VCC2?
The MAX6360MSUT+T provides a single active-low push-pull reset output (RST2) referenced to VCC2, as confirmed in the Pin Description table and Selector Guide. This distinguishes it from MAX6359 variants (RST referenced to VCC1) and MAX6351 (dual RST1/RST2 outputs).
What are the watchdog timeout periods supported by the MAX6360MSUT+T?
The MAX6360MSUT+T supports two watchdog timeout modes: a 46.4s startup timeout (active after power-on, manual reset, or watchdog reset) and a 2.9s normal timeout (active after startup completes or upon first WDI transition). Both values are guaranteed and appear in the Electrical Characteristics table under "Watchdog Timeout Period".
Can the MAX6360MSUT+T operate reliably when one supply drops below 1.0V?
Yes-the MAX6360MSUT+T guarantees valid reset output as long as either VCC1 ≥1.0V or VCC2 ≥1.0V, per the Absolute Maximum Ratings and Electrical Characteristics sections. This allows controlled shutdown during deep brownouts without loss of reset state integrity.
Is the MAX6360MSUT+T pin-compatible with other devices in the MAX6351–MAX6360 family?
The MAX6360MSUT+T uses the 6-pin SOT23 package (U6-1) and shares identical pinout with MAX6358/MAX6359/MAX6360 variants-pin 1=RST2, pin 5=WDI, pin 6=VCC1-but differs from MAX6351 (RST1+RST2), MAX6355 (RSTIN), and 5-pin variants. Pin compatibility is limited to the MAX6358/59/60 group.
MAX6360MSUT+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 2.93V, 4.38V
- 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-6
MAX6360MSUT+T FAQ
1.How can I place an order for MAX6360MSUT+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6360MSUT+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 MAX6360MSUT+T reliable?
The price and inventory of MAX6360MSUT+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6360MSUT+T is usually 5 days.
3.What payment methods are accepted for MAX6360MSUT+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6360MSUT+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6360MSUT+T?
MAX6360MSUT+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6360MSUT+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 MAX6360MSUT+T?
For technical support, including MAX6360MSUT+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6360MSUT+T requirements.
6.How does Aetrix verify that MAX6360MSUT+T is sourced from the original manufacturer or authorized distributors?
All MAX6360MSUT+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 MAX6360MSUT+T meets industry standards.
7.What is the process for return or replacement of MAX6360MSUT+T?
All MAX6360MSUT+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6360MSUT+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 MAX6360MSUT+T part is unused and in its original packaging.
Return procedure for MAX6360MSUT+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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