Global Sources
EE Times-Asia
Stay in touch with EE Times Asia
EE Times-Asia > Power/Alternative Energy
Power/Alternative Energy??

Get long pulse width when watchdog detects fault

Posted: 06 Nov 2014 ?? ?Print Version ?Bookmark and Share

Keywords:central processing unit? CPU? embedded processor? ASIC? microcontroller?

Internal watchdogs are built into the central processing unit (CPU) of most embedded processor devices that include high-integration peripherals. However, these watchdog timers are not reliable because uncontrolled, or runaway, software can reprogram the internal watchdog-timer controller. A reliable watchdog must be independent of the CPU that is protected by the watchdog.

To achieve a better application-specific integrated circuit (ASIC) for automotive systems, an external window watchdog is required to monitor the operating status of the microcontroller. The TPS7A63xx-Q1 device is a linear regulator with an integrated window watchdog. This device is suitable for as an automotive microcontroller power-supply.

View the PDF document for more information.

Originally published by Texas Instruments Inc. at as "TPS7A63xx-Q1 Configuration to Achieve Long-Reset Pulse Width When the Watchdog Detects a Fault".

Article Comments - Get long pulse width when watchdog d...
*? You can enter [0] more charecters.
*Verify code:


Visit Asia Webinars to learn about the latest in technology and get practical design tips.

Back to Top