DESCRIPTION

The A4809C is a cost-effective system supervisor Integrated Circuit (IC) designed to monitor VCC in digital and mixed signal systems and provide a warning signal when the system power supply is out of working range, and a reset signal to the host processor when necessary. No external components are required. It features low supply current. CMOS output configurations is available. Since the delay circuit is built-in, peripherals are unnecessary and high density mounting is possible. A4809C is available in SOT-23 package.

FEATURES

 Precision VCC Monitor for 2.63V, 2.93V

 Highly Accurate: ± 1

 Low Power Consumption : lower than 1.5μA

 Operating Voltage Range: 0.7V ~ 6.0V

 Detect Voltage Temperature Characteristics: ±100ppm/℃(TYP.)

 Built-In Delay Circuit: 50ms ~ 200ms

 Output Configuration: CMOS

 Available in SOT-23 package APPLICATION

 Microprocessor reset circuitry

 Memory battery back-up circuits

 Power-on reset circuits

 Power failure detection

 System battery life and charge voltage monitors

 Delay circuitry