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Power management unit powers up in <10ms

Posted: 13 Feb 2013     Print Version  Bookmark and Share

Keywords:power  management  unit  automotive 

Texas Instruments Inc. launches the TPS659119-Q1 low-voltage power management unit. The unit claims to offer the fastest start-up time of under 10mS for instant-on automotive applications, such as graphical cluster, infotainment and advanced driver assistance systems (ADAS).

The TPS659119-Q1 is optimised to work with TI's automotive OMAP processors, including the DRA6x family (codenamed "Jacinto") of infotainment processors, and other ARM Cortex-A offerings. In addition, the TPS659119-Q1 is factory-programmed and has customisable power-up and power-down sequencing based on the customer's processor of choice and system power needs.

Other features of the power management unit include dynamic voltage scaling for processor core flexibility. This is achieved by having three efficient step-down DC/DC converters; two with dynamic voltage scaling and one for input/output (I/O) power.

The device has a control signal that enables one external buck controller for external FETs to support a high current rail when necessary. It claims efficient and flexible output. With eight low dropout (LDO) voltage regulators and one real-time clock (RTC) LDO, the TPS659119-Q1 provides flexible output power to serve multiple processors.

To hasten the evaluation of the TPS659119-Q1, an evaluation module is available, priced at Rs.5,409.84 ($99). A reference design, schematic checklist, and application note are also available.

The TPS659119-Q1 comes in a HTQFP 80-pin package and is available now, priced at Rs.306.56 ($5.61) in 100-unit quantities.

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