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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 MPU SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,429
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Product details
Overview
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, 2.9s watchdog timeout, and guaranteed operation down to VCC1 or VCC2 = 1.0V - used in multivoltage embedded systems requiring reliable power-on and fault-reset sequencing.
For engineers reviewing the MAX6360TWUT+T datasheet, MAX6360TWUT+T pinout, MAX6360TWUT+T application, or MAX6360TWUT+T equivalent, key selection criteria include dual-supply monitoring accuracy, watchdog startup/normal timeout timing, reset output drive capability relative to VCC2, and SOT23-6 package compatibility with low-power portable designs.
Technical Context
The MAX6360TWUT+T implements a dual-threshold voltage monitor with independent trip points for VCC1 (3.08V) and VCC2 (1.67V), asserting reset whenever either supply falls below its respective threshold. Its watchdog timer features a 46.4s startup timeout and 2.9s normal timeout, cleared on any WDI edge.
Reset is delivered via a single active-low push-pull output referenced to VCC2, ensuring valid logic levels even when VCC1 drops to 1.0V (provided VCC2 ≥ 1.0V). The device draws only 20µA typical supply current and guarantees reset pulse width ≥100ms.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 3.08V ±0.05V at +25°C; ensures precise reset assertion during 3.3V rail brownout |
| VCC2 Threshold | 1.67V ±0.03V at +25°C; enables reliable monitoring of 1.8V or 1.6V logic supplies |
| Watchdog Timeout | 2.9s normal mode; provides rapid processor hang detection after system initialization |
| Startup Timeout | 46.4s; allows full firmware boot and peripheral configuration before watchdog enforcement |
| Reset Pulse Width | 100–280ms; meets minimum reset duration requirements for most microcontrollers |
| Supply Current | 20µA typical; supports battery-backed or ultra-low-power always-on supervision |
| Operating Temp | -40°C to +85°C; qualified for industrial and extended-temperature embedded applications |
Pinout & Package
MAX6360TWUT+T is housed in a lead(Pb)-free 6-pin SOT23 package (U6-1 outline), with 0.95mm pitch, 2.9mm × 1.6mm footprint, and thermal pad omitted. Pin 1 is WDI, Pin 2 is GND, Pin 3 is MR, Pin 4 is VCC2, Pin 5 is RST2 (active-low push-pull referenced to VCC2), and Pin 6 is VCC1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (WDI) | Watchdog Input | Falling or rising edge resets watchdog timer; unconnected disables watchdog function |
| 2 (GND) | Ground Reference | Common return path for VCC1, VCC2, MR, WDI, and RST2 |
| 3 (MR) | Manual Reset Input | Active-low debounced input; forces reset while asserted and for timeout period after release |
| 4 (VCC2) | Secondary Supply Rail | Powers internal circuitry and defines reference for RST2 output; monitored at 1.67V threshold |
| 5 (RST2) | Active-Low Reset Output | Push-pull CMOS output referenced to VCC2; drives low during reset, high otherwise |
| 6 (VCC1) | Primary Supply Rail | Monitored at 3.08V threshold; powers internal logic when above VCC2 |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage thresholds | 3.08V on VCC1 and 1.67V on VCC2 enable simultaneous supervision of 3.3V/1.8V or 3.3V/1.6V rail pairs |
| VCC2-referenced RST2 output | Ensures clean, rail-consistent reset signaling even if VCC1 collapses to 1.0V |
| Two-stage watchdog timer | 46.4s startup window prevents false triggers during boot; 2.9s normal timeout detects runtime hangs |
| Guaranteed reset validity to 1.0V | Allows safe reset assertion during deep brownout conditions where one supply dips near cutoff |
| 20µA ultra-low quiescent current | Minimizes impact on battery life in portable equipment and always-on monitoring circuits |
Applications
| Industrial PLC Controllers | Portable Medical Monitors |
|---|---|
Use Scenario: Supervising dual-rail power domains (3.3V I/O + 1.8V core) in programmable logic controllers exposed to voltage transients. IC Role / Device Role / Timing Role: Dual-voltage supervisor asserting synchronized reset across both rails upon any undervoltage event; watchdog monitors main CPU activity. Use Value: Prevents erratic controller behavior during line sags by guaranteeing reset until both rails stabilize, with 46.4s startup timeout accommodating FPGA configuration. | Use Scenario: Power management in handheld ECG or glucose meters using 3.3V display/communication and 1.6V sensor ADC rails. IC Role / Device Role / Timing Role: Monitoring VCC1 (3.08V threshold) for 3.3V rail and VCC2 (1.67V threshold) for 1.6V rail; RST2 output directly drives 1.6V logic reset domain. Use Value: Enables reliable low-voltage operation down to 1.0V on either rail, critical for battery discharge protection without premature shutdown. |
| Automotive Infotainment Head Units | Smart Energy Meters |
Use Scenario: Ensuring deterministic boot sequence in head units with separate 3.3V MCU and 1.8V DSP supplies subject to load dump transients. IC Role / Device Role / Timing Role: Detecting undervoltage on either rail and issuing reset referenced to the more stable 1.8V domain (RST2); watchdog guards against firmware lockup. Use Value: Eliminates need for external pull-up resistors or level shifters by providing VCC2-referenced push-pull output compatible with 1.8V logic inputs. | Use Scenario: Supervising isolated power rails (3.3V communication + 1.6V metrology ASIC) in DIN-rail mounted electricity meters operating over wide temperature range. IC Role / Device Role / Timing Role: Providing -40°C to +85°C guaranteed reset assertion and 2.9s watchdog timeout to detect frozen metrology firmware. Use Value: Delivers 100ms minimum reset pulse width and 20ppm/°C tempco for stable threshold performance across environmental extremes. |
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 | Same thresholds (3.08V/1.67V) and package, but RST output referenced to VCC1 instead of VCC2 | Suitable when reset must be referenced to primary 3.3V rail rather than secondary 1.6V rail | Select MAX6359TWUT+T if system reset logic is tied to VCC1 domain; MAX6360TWUT+T is preferred for VCC2-domain reset assertion. |
| TPS3808G33DBVR | Single-supply supervisor (3.3V threshold only), no watchdog timer, SOT23-5 package | Lacks dual-voltage monitoring and watchdog functionality; requires external circuitry for multirail supervision | Choose TPS3808G33DBVR only for cost-sensitive single-rail applications where watchdog and second threshold are unnecessary. |
Compared with MAX6359TWUT+T, MAX6360TWUT+T delivers reset signaling referenced to the lower-voltage rail (VCC2), enabling direct interface with 1.6V logic without level translation; versus TPS3808G33DBVR, it adds essential dual-rail monitoring and watchdog safety for complex embedded systems.
Availability
MAX6360TWUT+T is available at Aetrix Electronics and suitable for industrial PLC controllers, portable medical monitors, automotive infotainment head units, and smart energy meters requiring stable component supply across extended temperature ranges and long production lifecycles.
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 industrial, communications, computing, and consumer applications.
The MAX6351–MAX6360 family delivers dual- and triple-voltage microprocessor supervisors optimized for reliability-critical embedded systems needing coordinated reset, manual reset, and watchdog functionality in minimal SOT23 footprints.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6360TWUT+T?
The MAX6360TWUT+T has a factory-set VCC1 threshold of 3.08V (±0.05V at +25°C) and VCC2 threshold of 1.67V (±0.03V at +25°C), as defined by the "TW" suffix per Maxim's Voltage Threshold Levels table. These values are guaranteed over -40°C to +85°C, with tempco of 20ppm/°C.
How does the watchdog timer on the MAX6360TWUT+T operate during system startup?
The MAX6360TWUT+T 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 enforcing the 2.9s normal timeout, which begins either after startup expires or upon the first WDI edge before expiry.
What is the electrical specification of the RST2 output on the MAX6360TWUT+T?
The RST2 output of the MAX6360TWUT+T is an active-low push-pull CMOS driver referenced to VCC2. It sinks ≥1.2mA at VOL ≤ 0.3V (VCC2 ≥ 2.7V) and sources ≥350µA at VOH ≥ 0.8×VCC2, enabling direct interface with 1.6V–3.3V logic families without external components.
Can the MAX6360TWUT+T maintain valid reset output when one supply rail drops below 1.0V?
No - the MAX6360TWUT+T guarantees RESET validity only while *either* VCC1 *or* VCC2 remains ≥1.0V. If both supplies fall below 1.0V simultaneously, RST2 output becomes undefined. This design ensures robust reset assertion during partial brownouts but requires system-level backup for complete power loss.
What package type and RoHS status does the MAX6360TWUT+T use?
The MAX6360TWUT+T uses a lead(Pb)-free 6-pin SOT23 package (U6-1 outline), indicated by the "+T" suffix. It complies with RoHS Directive 2011/65/EU and has a moisture sensitivity level (MSL) of 1, with no special handling required prior to reflow soldering.
MAX6360TWUT+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- 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-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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