New Industry Products

High-side Switch provides I-Sense and Diagnostics without Calibration

March 26, 2015 by Jeff Shepard

Texas Instruments, Inc. (TI) claims the industry's first smart, high-side power switch with programmable current limit. As automotive systems become more complex, the various loads within the system can each require different profiles during operation. Using the TPS1H100-Q1, designers can drive various loads with advanced flexibility in powertrain, body-electronics safety and driver-information systems where reliability is paramount.

The TPS1H100-Q1 also offers 20 percent higher current-sense accuracy versus the competition to enable intelligent, real-time diagnosis of its loading conditions. System designers can benefit from the device’s simplicity and flexibility to reduce circuit complexity while advancing their systems. The TPS1H100-Q1 is available in a 14-pin, 5.0-mm by 6.4-mm thermally enhanced thin shrink small-outline package (HTSSOP). Suggested retail pricing in 1,000-unit quantities starts at US$0.80.

Key features and benefits of the TPS1H100-Q1: High-accuracy current sense: 5-mA current-sense accuracy gives designers the ability to leverage sophisticated load-checking to adjust the driving profile, detect system deterioration, locate problem areas, or judge circuit conditions. Programmable current limit: The TPS1H100-Q1 is the first to provide adjustable current-limit capability to allow flexible control. High-avalanche energy-dissipation capability: A high-voltage avalanche structure eliminates Zener transient voltage suppressors and free-wheel diodes to address voltage surging for inductive load recirculation. Automotive Electronics Council (AEC) Q100-012 Grade A compliance: Guarantees zero failure for lifetime reliability in automotive and industrial environments.