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Analog Devices Inc./Maxim Integrated MAX6360MSUT+
- Part No.:
- MAX6360MSUT+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6360MSUT+.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,131
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Product details
Overview
MAX6360MSUT+ from Maxim Integrated is a dual-voltage microprocessor supervisory circuit with active-low push-pull reset output referenced to VCC2, 4.38V/2.93V factory-set thresholds, 20µA supply current, and integrated watchdog timer (46.4s startup / 2.9s normal timeout). It ensures reliable power-on reset and fault detection in multivoltage embedded systems such as industrial controllers and portable instrumentation.
For engineers reviewing the MAX6360MSUT+ datasheet, MAX6360MSUT+ pinout, MAX6360MSUT+ application, or MAX6360MSUT+ equivalent, key selection criteria include VCC2-referenced RST2 output behavior, dual-supply monitoring with guaranteed RESET validity down to VCC1 = 1V or VCC2 = 1V, and watchdog timing architecture supporting both boot initialization and runtime supervision.
Technical Context
The MAX6360MSUT+ implements dual independent voltage comparators with precision factory-trimmed thresholds (VTH1 = 4.38V ±0.08V, VTH2 = 2.93V ±0.05V) and 20ppm/°C tempco. Its reset generator asserts RST2 low when either VCC1 drops below 4.38V or VCC2 drops below 2.93V, with 100ms minimum reset pulse width and guaranteed operation over -40°C to +85°C.
It integrates a dual-mode watchdog timer: 46.4s startup timeout enables full system boot before supervision begins, followed by 2.9s normal timeout requiring periodic WDI transitions. The manual-reset input (MR) is debounced and TTL/CMOS-compatible, with reset assertion maintained for the timeout period after MR release.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.38V ±0.08V at +25°C; guarantees reset assertion if primary supply falls below nominal 4.38V rail |
| VCC2 Threshold | 2.93V ±0.05V at +25°C; triggers reset when secondary supply drops below nominal 2.93V rail |
| Supply Current | 20µA typical; enables long battery life in portable equipment without compromising supervision accuracy |
| Reset Pulse Width | 100ms minimum; meets μP reset hold-time requirements across temperature and voltage extremes |
| Watchdog Timeout | 46.4s startup / 2.9s normal; supports complex boot sequences then enforces rapid processor activity checks |
| RESET Validity Range | Guaranteed down to VCC1 = 1V or VCC2 = 1V; maintains functional reset state during deep brownout conditions |
| Operating Temp | -40°C to +85°C extended range; qualified for industrial and automotive-adjacent embedded applications |
Pinout & Package
MAX6360MSUT+ is housed in a 6-pin SOT23 package (U6-1 outline, 90-0175 land pattern), RoHS-compliant with lead-free termination (+ suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST2 | Active-low push-pull reset output referenced to VCC2; drives low during fault or MR assertion |
| 2 | GND | Ground reference for all internal circuitry and comparator inputs |
| 3 | MR | Debounced manual-reset input; pull low to force reset; requires no external RC network |
| 4 | VCC2 | Secondary supply input and monitoring rail; powers device when above VCC1 and sets RST2 reference |
| 5 | WDI | Watchdog input; rising/falling edge resets timer; unconnected disables watchdog function |
| 6 | VCC1 | Primary supply input and monitoring rail; powers device when above VCC2 and sets threshold comparator 1 |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous precision supervision of two distinct supply rails (e.g., 4.38V core + 2.93V I/O) without external components |
| VCC2-referenced RST2 output | Push-pull driver referenced to VCC2 ensures clean logic-level reset signal compatible with downstream 2.93V-domain logic |
| Dual-mode watchdog timer | 46.4s startup timeout accommodates full firmware initialization; 2.9s normal timeout detects runtime lockups rapidly |
| Guaranteed reset validity to 1V | Ensures deterministic reset assertion even during severe brownout where VCC1 or VCC2 collapses to 1V |
| Low 20µA quiescent current | Minimizes impact on battery capacity in always-on portable instrumentation and remote sensors |
Applications
| Industrial Controllers | Portable Medical Devices |
|---|---|
|
Use Scenario: PLC I/O modules powered by separate 4.38V logic and 2.93V analog rails require coordinated reset during power-up and brownout events. IC Role / Device Role / Timing Role: MAX6360MSUT+ monitors both rails and asserts RST2 to hold microcontroller in reset until both supplies stabilize. Use Value: Prevents spurious I/O activation or analog sensor corruption during unstable power conditions. |
Use Scenario: Battery-powered glucose meters use 4.38V MCU core and 2.93V sensor interface; must maintain valid reset through battery discharge to 1V. IC Role / Device Role / Timing Role: MAX6360MSUT+ provides VCC2-referenced RST2 and guarantees reset validity down to VCC2 = 1V. Use Value: Ensures safe shutdown and prevents erroneous readings during end-of-battery operation. |
| Intelligent Power Meters | Multivoltage Test Equipment |
|
Use Scenario: Smart electricity meters integrate 4.38V metrology ASIC and 2.93V communication IC; require watchdog supervision of firmware execution. IC Role / Device Role / Timing Role: MAX6360MSUT+ uses WDI to monitor MCU activity and assert RST2 on watchdog timeout. Use Value: Recovers from firmware hangs without requiring field technician intervention. |
Use Scenario: Benchtop oscilloscopes power FPGA (4.38V), ADCs (2.93V), and display controller from independent rails. IC Role / Device Role / Timing Role: MAX6360MSUT+ replaces discrete reset ICs with single-chip dual-rail supervision and manual reset. Use Value: Reduces BOM count and PCB area while improving timing coordination between subsystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6359MSUT+ | Identical thresholds (4.38V/2.93V) and package, but RST output referenced to VCC1 instead of VCC2 | Suitable when reset signal must be referenced to primary 4.38V rail rather than secondary 2.93V rail | Select MAX6359MSUT+ only if downstream logic is powered by VCC1; otherwise MAX6360MSUT+ ensures correct voltage domain alignment |
| TPS3808G33DBVR | Single-supply supervisor (3.3V threshold only); no dual-rail monitoring or VCC2-referenced output | Lacks dual-voltage capability and watchdog timer; requires additional ICs for multirail systems | Choose only for simple single-rail designs; not a functional substitute for MAX6360MSUT+ in dual-supply applications |
Compared with MAX6359MSUT+, MAX6360MSUT+ provides VCC2-referenced reset critical for interfacing with 2.93V peripherals; compared with TPS3808G33DBVR, it delivers integrated dual-rail supervision and watchdog functionality that eliminates multiple discrete components and reduces system-level timing uncertainty.
Availability
MAX6360MSUT+ is available at Aetrix Electronics and suitable for industrial controllers, portable medical devices, intelligent power meters, and multivoltage test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6360MSUT+ 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 semiconductor solutions for industrial, communications, and consumer applications.
The MAX6351–MAX6360 family delivers precision dual- and triple-voltage supervision with integrated watchdog timers, targeting reliability-critical embedded systems where coordinated power sequencing and fault recovery are essential.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6360MSUT+?
The MAX6360MSUT+ has factory-set thresholds of 4.38V ±0.08V for VCC1 and 2.93V ±0.05V for VCC2 at +25°C, with guaranteed operation over -40°C to +85°C. These values are laser-trimmed during production and specified in the Voltage-Threshold Levels table under suffix "MS". The MAX6360MSUT+ uses these precise thresholds to assert reset when either supply falls below its respective trip point.
How does the watchdog timer on the MAX6360MSUT+ operate during system startup?
The MAX6360MSUT+ watchdog timer initiates a 46.4s startup timeout period after any reset event (power-up, MR assertion, or watchdog timeout). This extended window allows full system initialization before transitioning to the 2.9s normal timeout mode. The timer resets on each WDI edge, so the first valid transition before 46.4s expires immediately starts the 2.9s cycle. This behavior is inherent to the MAX6360MSUT+ architecture and requires no configuration.
Is the RST2 output of the MAX6360MSUT+ compatible with 2.93V logic systems?
Yes - the RST2 output of the MAX6360MSUT+ is an active-low push-pull driver referenced to VCC2, meaning its high-state voltage equals VCC2 and its low-state voltage is ≤0.3V at 50µA sink current. When VCC2 = 2.93V, RST2 delivers a rail-to-rail output fully compatible with 2.93V logic families, eliminating level-shifting requirements in the reset path.
What is the minimum supply voltage required for the MAX6360MSUT+ to guarantee valid reset output?
The MAX6360MSUT+ guarantees valid RST2 output as long as either VCC1 ≥ 1.0V or VCC2 ≥ 1.0V, per Absolute Maximum Ratings and Electrical Characteristics. This means the device continues asserting or deasserting reset correctly even during deep brownout conditions where one supply collapses to 1V, a critical feature for fail-safe operation in battery-powered systems.
Can the MAX6360MSUT+ monitor three voltage rails like some members of the same family?
No - the MAX6360MSUT+ is a dual-voltage supervisor only, monitoring VCC1 and VCC2. Unlike MAX6355/MAX6356/MAX6357 variants, it lacks the RSTIN pin for third-voltage monitoring. Its pinout (RST2, GND, MR, VCC2, WDI, VCC1) confirms no RSTIN terminal; therefore, the MAX6360MSUT+ cannot be configured to supervise a third rail without external circuitry.
MAX6360MSUT+ 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+ FAQ
1.How can I place an order for MAX6360MSUT+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6360MSUT+ 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+ reliable?
The price and inventory of MAX6360MSUT+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6360MSUT+ is usually 5 days.
3.What payment methods are accepted for MAX6360MSUT+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6360MSUT+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6360MSUT+?
MAX6360MSUT+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6360MSUT+ 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+?
For technical support, including MAX6360MSUT+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6360MSUT+ requirements.
6.How does Aetrix verify that MAX6360MSUT+ is sourced from the original manufacturer or authorized distributors?
All MAX6360MSUT+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX6360MSUT+?
All MAX6360MSUT+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6360MSUT+, 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+ part is unused and in its original packaging.
Return procedure for MAX6360MSUT+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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