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Smart power switch targets powertrain, car safety apps

Posted: 07 Apr 2015     Print Version  Bookmark and Share

Keywords:Texas Instruments  power switch  powertrain  automotive 

Texas Instruments (TI) unveiled what it boasts as the industry's first smart, high-side power switch with programmable current limit. According to the company, the TPS1H100-Q1 enables designers to drive various loads with advanced flexibility in powertrain, body-electronics safety and driver-information systems where reliability is vital.

The device claims to offer 20 per cent 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, stated TI.

TPS1H100-Q1

The TPS1H100-Q1 flaunts 5mA current-sense accuracy that promises to give designers the ability to leverage sophisticated load-checking to adjust the driving profile, detect system deterioration, locate problem areas or judge circuit conditions. In addition, the TPS1H100-Q1 claims to be the first to provide adjustable current-limit capability to allow flexible control. The device also has a high-voltage avalanche structure that eliminates Zener transient voltage suppressors and free-wheel diodes to address voltage surging for inductive load recirculation. Compliant to AEC Q100-012 Grade A, the device guarantees zero failure for lifetime reliability in automotive and industrial environments.

TI's portfolio of load switches can be used for a variety of applications from power savings to power distribution and power sequencing. These highly-integrated devices reduce overall BOM count and solution size, as well as add additional protection features.

The automotive BCM reference design addresses common design challenges such as load driving, condition diagnostics and fault detection. Designers can use this TI Designs reference design to quickly design door locks; window lifts; seat heaters; heating, ventilation and air conditioning (HVAC); lamps; and light-emitting diodes (LEDs).

The TPS1H100EVM evaluation module (EVM) allows customers to evaluate the TPS1H100-Q1 for resistive, capacitive and inductive load layout. The EVM is available for $29.

The TPS1H100-Q1 is available in a 14-pin, 5mm x 6.4mm thermally enhanced thin shrink small-outline package (HTSSOP). Suggested retail pricing in 1,000-unit quantities starts at $0.80.





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