Introducing the APX809-44SRG-7 Voltage Supervisor from Diodes Incorporated

The APX809-44SRG-7 is a highly reliable voltage supervisor component designed and manufactured by Diodes Incorporated, a leading company in the semiconductor market. This precision voltage detector is engineered to maintain system integrity by monitoring the supply voltage of microprocessors (µP) and digital systems. It is an essential device for applications that require a high level of operational stability and accuracy.

With its compact SOT-23 packaging, the APX809-44SRG-7 is an ideal solution for space-constrained applications. It features a fixed threshold voltage of 4.4V, which makes it suitable for monitoring 5V power supplies. When the supply voltage drops below the 4.4V threshold, the APX809-44SRG-7 asserts a reset signal that remains active until the supply voltage returns to an acceptable level, plus a delay time to ensure system stability.

The reset output of the APX809-44SRG-7 is of the active-low, push-pull type. This means that it can directly drive the reset or enable input of microcontrollers, microprocessors, and other digital systems without the need for external components. The device's reset signal is guaranteed to be valid down to V_CC = 1.0V, which provides a wide operating range and ensures the reset is de-asserted properly when the system voltage recovers.

Key features of the APX809-44SRG-7 include:

• Fixed threshold voltage of 4.4V tailored for 5V systems
• Low supply current of 17µA (typical), which is beneficial for power-sensitive designs
• Guaranteed reset output down to V_CC = 1.0V
• Immunity to short V_CC transients
• RoHS-compliant and lead-free SOT-23 package

This voltage supervisor is an excellent choice for a wide array of applications, including computers, controllers, intelligent instruments, portable/battery-powered equipment, and any other system where a precise monitoring of the power supply voltage is critical for reliable operation.

Overall, the APX809-44SRG-7 from Diodes Incorporated represents a blend of performance, reliability, and convenience, ensuring your systems operate smoothly and respond correctly to power anomalies.