Features
Operating Range: 1.0V to 5.5V
Fixed Reset Time Delay: 200ms, 55ms(Only for AWS70809ASBSTR)
Low Supply Current: 1.6A (Typical)
Precision Supply Voltage Monitor :
1.8V, 2.5V, 2.93,V3V, 3.3V, 5V options
High Reset Threshold accuracy: ±2% (Typical)
Guaranteed RESETN Valid at VCC = 1V
Reset Output Types:
AWS70803: Open-Drain, active Low
AWS70809: Push-Pull, active Low
Package: SOT23-3L and SSOT23-3L
Temperature Range: -40°C to +125°C
Description
The AWS70803 and AWS70809 supervisory circuit monitor the power supply voltage in microprocessor and digital systems. It provides a reset output during power-up, power-down and brownout conditions. On power-up, an internal timer holds reset asserted for 200ms. This holds the microprocessor in a reset state until conditions have stabilized. The RESETN output remain operational with VCC as low as 1V. The AWS70803 and AWS70809 provide an active low reset signal (RESETN). The AWS70803 has open-drain output. The AWS70809 has push-pull output.
Multiple reset threshold voltage options are available, suitable for monitoring 1.8V, 2.5V, 3.3V, and 5V supply voltage.
The reset comparator features built-in glitch immunity, making it immune to fast transients on VCC.
The low supply current of typically 1.6A makes AWS70803 and AWS70809 ideal for using in portable, battery operated equipment. It is specified over the extended -40°C to +125°C temperature range.
