austriamicrosystems Launches AS1904/5/6 ICs

austriamicrosystems AG (Graz, Austria) launched its AS1904/5/6 family of ultra-low-power supervisory circuits. With a current consumption of only 150 nA (typical), the devices are suitable for portable and battery-powered equipment, computers, controllers, critical µP and µC power monitoring, intelligent instruments, and automotive applications.

The AS1904/5/6 family devices monitor the supply voltage of digital systems and microprocessors and initiate a reset if the voltage decreases below a certain threshold. The state of the reset is active for a predefined time after the supply voltage has risen above the threshold. The product family offers three devices with different output drivers. The AS1904 has a push-pull driver with an active low reset. The AS1905 uses the same output stage, but has an active high reset. The AS1906 has an open drain output with an active low reset. Each device is offered with four typical time out periods of 5 ms, 20 ms, 100 ms and 500 ms (factory trimmed).

The AS1904/5/6 family of devices is available now in three-pin SOT23 packaging, starting below $1.00 for 1,000 units.