Product News

General-Purpose System Power IC for Automotive Functional Safety

Toshiba Electronics Europe recently announced a general-purpose system power IC with multiple outputs and functional safety circuits for automotive applications. The TB9044FNG comes in an HTSSOP48-P-300-0.50 package measuring 6.1 mm × 12.5 mm × 1 mm. It integrates various failure-detection functions (e.g., a high-voltage and low-voltage detection and overheat detection) and a watchdog timer to monitor the failure detection of the external microcontroller. Also included is an initial diagnosis circuit to detect latent faults in the failure detection circuits to secure higher functional safety.Toshiba 6819A

The IC generates a 6-V output from a high-efficiency buck-boost DC-DC converter. In order to avoid problems following a voltage drop during cranking, the low-side operating voltage range is improved down to 2.7 V (minimum) with battery operation. In addition, the IC incorporates four series power supply output circuits receiving the 6-V input generated by the DC-DC converter. It also incorporates an output circuit with a 5-V constant voltage (current capacity of 400 mA) for the microcomputer, and three circuits with 5-V constant voltage output (current capacity of 100 mA) for sensors and other interfaces. Each can output a voltage independently.

Samples are now available. Mass production scheduled to begin in October 2017.

Source: Toshiba Corp.


Keep up-to-date with our FREE Weekly Newsletter!

Don't miss out on upcoming issues of Circuit Cellar.

Note: We’ve made the Dec 2022 issue of Circuit Cellar available as a free sample issue. In it, you’ll find a rich variety of the kinds of articles and information that exemplify a typical issue of the current magazine.

Would you like to write for Circuit Cellar? We are always accepting articles/posts from the technical community. Get in touch with us and let's discuss your ideas.

Sponsor this Article
Website | + posts

Circuit Cellar's editorial team comprises professional engineers, technical editors, and digital media specialists. You can reach the Editorial Department at, @circuitcellar, and

Supporting Companies

Upcoming Events

Copyright © KCK Media Corp.
All Rights Reserved

Copyright © 2024 KCK Media Corp.

General-Purpose System Power IC for Automotive Functional Safety…

by Circuit Cellar Staff time to read: 1 min