| austriamicrosystems
has introduced its new AS1910-15 family of dual-voltage
microprocessor supervisory circuits with manual reset
and watchdog functions. Ideal for portable and battery
powered systems and all dual-supply applications, the
ICs offer a very low power consumption of only 5.8µA
(typ). They support a wide temperature range –
from -40°C to 125°C – which makes them
ideal for industrial applications.
The AS1913, AS1914 and AS1915 feature factory-trimmed
thresholds to monitor a primary voltage between 1.8
and 3.6V, and a secondary voltage between 0.9 and 2.5V.
For the AS1910, AS1911 and AS1912, the secondary monitored
voltage can be user-adjusted via an external resistor
divider down to 0.6V.
"The AS1910-15 family of supervisory ICs has been
designed to generate a reset when one of the two monitored
supply voltages falls below a factory-trimmed threshold
and to maintain the reset for a minimum timeout period
when both supplies are above their reset thresholds,"
said Walter Moshammer, Marketing Director Standard Linear
at austriamicrosystems.
"Furthermore the IC’s design safeguards that
they are in the correct state for VCC down to 1.0V,
making them ideal for low-voltage systems with strict
monitoring requirements."
The new family of ICs includes a manual-reset input
for systems that never fully power the microprocessor
down. Additionally, these devices feature a watchdog
with a timeout period of 1.5 sec., that means if no
clock is applied a reset is generated.
"Because of their low power consumption the AS1910-15
family is ideal for portable and battery-powered systems,
embedded controllers and communication systems. This
includes dual-supply applications such as computers,
intelligent instruments, critical processor and controller
power monitoring," said Walter Moshammer. "They
are particularly well suited for use in microprocessor-based
systems where the core processor typically has a 1.8V
supply or lower while the periphery is powered with
3V or 3.3V. In such systems both voltages must be monitored
simultaneously."
The devices are available in space-saving SOT23-6 packaging
and with the following reset output types: Active-Low
Push-Pull (AS1910/AS1913), Active-High Push-Pull (AS1911/AS1914)
and Active-Low Open-Drain (AS1912/AS1915). They are
also pin-compatible with Maxim's devices. The AS1910-12
is pin-compatible with Maxim's MAX6826-28 and the AS1913-15
is pin-compatible with Maxim's MAX6829-31.
About austriamicrosystems
austriamicrosystems
is a leading designer and manufacturer of high performance
analog ICs, combining more than 20 years of analog design
capabilities and system know-how with its own state-of-the-art
manufacturing and test facilities. austriamicrosystems
leverages its expertise in low power and high accuracy
to provide industry-leading customized and standard
analog products. Operating worldwide with more than
850 employees, austriamicrosystems
focuses on the areas of power management, sensors &
sensor interfaces, portable audio and car access through
its business units Communications, Industry & Medical,
Automotive and Full Service Foundry. austriamicrosystems
is listed on the SWX Swiss Exchange in Zurich (ticker
symbol: AMS). |
