Supervisory ICs monitor system supply voltages.
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Press Release Summary:
Requiring no external components and consuming 2.4 µA of quiescent current, Series AS1907-09 monitors supply voltage of 1.8-3.3 V digital systems and microprocessors, and initiates reset if voltage decreases below certain threshold. Reset thresholds are available from +1.6 to +2.5 V in approximately 100 mV increments. Housed in 3-pin SOT23 package, each device operates from -40 to +125°C and is available with 3 minimum reset timeout period options of 1, 20, or 100 ms.
Original Press Release:
austriamicrosystems Launches Low-Voltage Microprocessor Supervisory Circuits
AS1907-09 family offers precise monitoring of systems while working with lowest input voltages
Unterpremstaetten, Austria (January 9, 2006) - austriamicrosystems (SWX: AMS), a leading global designer and manufacturer of analog integrated circuits (ICs) for communication, industrial, medical and automotive applications, has expanded its supervisory portfolio with the AS1907-09 family of microprocessor supervisory ICs.
The new family is ideal for monitoring the supply voltages of 1.8V to 3.3V systems.
"These small, low-power microprocessor reset circuits require no external components and consume only 2.4µA of quiescent current which making the AS1907-09 family ideal for portable and battery-powered equipment, computers, intelligent instruments, critical µP and µC power monitoring, controllers and automotive applications," said Walter Moshammer, Marketing Director Standard Linear at austriamicrosystems.
Highly reliable, the AS1907-09 family devices monitor the supply voltage of digital systems and microprocessors and initiate a reset if the voltage decreases below a certain threshold. The reset threshold itself has an outstanding accuracy of ±0.9%. Reset thresholds from +1.6V to +2.5V are available in approximately 100mV increments. Each device is available with three minimum reset timeout period options of 1ms, 20ms, or 100ms.
The product family offers three devices with different output drivers. The AS1907 has a push-pull driver with an active low reset. The AS1908 uses the same output stage, but has an active high reset. The AS1909 has an open drain output with an active low reset. The AS1907-09 family works with a supply voltage range from 0.7 to 3.6V and the reset output itself is guaranteed to be valid down to 0.7V (AS1907/08) or 1.0V (AS1909).
The devices are available in a small 3-pin SOT23 package, suitable for operating environments ranging from -40°C to +125°C which making these reset circuits also ideal for industrial applications. For product-specific information, to download datasheets or to request free samples from austriamicrosystems' online shop ICdirect,
please visit http://austriamicrosystems.com/03products/15_microprocessor_supervisors.htm
About austriamicrosystems
austriamicrosystems is a leading designer and manufacturer of high performance analog ICs, combining more than 25 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 industryleading
customized and standard analog products. Operating worldwide with more than 1,000 employees, austriamicrosystems focuses on the areas of power management, sensors & sensor interfaces, portable audio and car access in its markets Communications, Industry & Medical and Automotive, complemented by its Full Service Foundry activities. austriamicrosystems is listed on the SWX Swiss Exchange in Zurich (ticker symbol: AMS). For more information, please visit the web site at www.austriamicrosystems.com.
Technical Contact
austriamicrosystems AG
Manfred Kogler
Marketing Manager Standard Linear
Tel: +43 (0) 3136 500 5274
Fax: +43 (0) 3136 500 5420
manfred.kogler@austriamicrosystems.com
www.austriamicrosystems.com
