MAX6369 (4)

The MAX6369 is available from Analog Devices at Xecor. Designed for supervising microprocessor activity, the MAX6369 offers pin-selectable watchdog timeout periods, open-drain or push-pull pulsed active-low watchdog output, and low supply current of 8µA. Available in the SOT-23-8 package, it is ideal for critical microprocessor applications in industries such as automotive and telecommunications. Whether used in system monitoring, error detection, or reset management, this series ensures precision, flexibility, and efficiency for demanding applications. Xecor is an authorized distributor for Analog Devices. Please view our extensive selection of the MAX6369 series below.

Part Number Description Package Inventory Add To Bom
MAX6369KA-T Pin-Configurable Watchdog Timer SOT23-8 5,819
MAX6369KA+T Pin-Configurable Watchdog Timer SOT23-8 5,115
MAX6369KA+ MAX6369KA+ offers advanced functionalities for monitoring and controlling electronic systems SOT-23-8 5,002
MAX6369KA/V+T Supervisory Circuits Pin-Selectable Watchdog Timers SOT23-8 5,564

Key Featrues

Pin-Selectable Watchdog Timeout Periods: Allows users to select different watchdog timeout periods via pin configuration, providing flexibility in system monitoring and ensuring the watchdog timer aligns with specific application requirements, enhancing system reliability.
Pin-Selectable Watchdog Startup Delay Periods: Offers configurable initial delay before the watchdog timer starts, enabling systems to stabilize during boot-up or initialization, which reduces false triggers and improves system robustness.
Open-Drain or Push-Pull Pulsed Active-Low Watchdog Output: Supports both open-drain (100ms) and push-pull (1ms) output configurations, allowing compatibility with various system designs and enabling precise control over watchdog signaling for reset or interrupt purposes.
Low Supply Current (8µA): Operates with a minimal supply current of 8µA, making it ideal for power-sensitive applications, such as battery-powered devices, while maintaining efficient system supervision.
Ability to Change Watchdog Timing Characteristics Without Power Cycling: Enables dynamic adjustment of watchdog timing parameters during operation, eliminating the need for system restarts and improving adaptability in real-time applications.

Applications

Microprocessor Supervision in Automotive Systems: The MAX6369–MAX6374 watchdog timers are ideal for supervising microprocessor activity in automotive systems. Their pin-selectable timeout periods and startup delays ensure reliable operation in critical applications, such as engine control units (ECUs) or advanced driver-assistance systems (ADAS). The open-drain or push-pull output options provide flexibility for system reset or interrupt signaling, ensuring robust performance in harsh automotive environments.
Industrial Control Systems: These watchdog timers are well-suited for industrial control systems where reliable microprocessor supervision is essential. By monitoring the watchdog input (WDI) and asserting an active-low WDO output during processing errors, they help maintain system integrity in programmable logic controllers (PLCs) or robotics. The ability to change watchdog timing characteristics without power cycling enhances system adaptability and uptime.
Medical Device Monitoring: In medical devices, such as patient monitors or infusion pumps, the MAX6369–MAX6374 ensure proper microprocessor operation by detecting and signaling processing errors. Their low supply current (8µA) and wide operating voltage range (+2.5V to +5.5V) make them energy-efficient and versatile for battery-powered medical applications, while the AEC-Q100 qualification ensures reliability in critical healthcare environments.
Consumer Electronics Reset Management: These watchdog timers are ideal for managing system resets in consumer electronics, such as smart home devices or wearables. Their miniature 8-pin SOT23 package and no external component requirement make them easy to integrate into compact designs. The pin-selectable timeout periods and watchdog disable feature provide flexibility for tailoring reset behavior to specific application needs, ensuring reliable operation in everyday use.