Low-voltage power management unit offers ultra-fast start-up time

February 08, 2013 // By Christoph Hammerschmidt
In some automotive applications such as graphical cluster for instrument panels, infotainment and advanced driver assistance systems (ADAS), the electronic systems need to exhibit extremely fast start-up times. For such applications, Texas Instruments has designed a low-voltage power management unit The TPS659119-Q1 is optimized to work with TI’s automotive OMAP processors, including the DRA6x family (“Jacinto”) of infotainment processors, and other ARM Cortex-A offerings.

The TPS659119-Q1 offers a start-up time of less than 10 milliseconds. It is factory-programmed and has customizable power-up and power-down sequencing based on the customer's processor of choice and system power needs. The device is qualified according to the automotive standard AEC-Q100.

Key features and benefits:

  1. Dynamic voltage scaling for processor core flexibility: The TPS659119-Q1 has three efficient step-down DC/DC converters; two with dynamic voltage scaling and one for input/output (I/O) power.
  2. Supports high current rail: The TPS659119-Q1 has a control signal that enables one external buck controller for external FETs to support a high current rail when necessary.
  3. Highly efficient, 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.
  4. High integration ensures maximum design flexibility: The TPS659119-Q1 is optimized for TI’s automotive OMAP processors, including the DRA6x family of infotainment processors.

The TPS659119-Q1 evaluation module (EVM) is available to speed the evaluation of the TPS659119-Q1. Priced at $99.00, the evaluation module is available upon request at www.ti.com/tps659119evm-pr. A reference design, schematic checklist, and application note are also available.

For more information visit www.ti.com/tps659119-q1-pr-eu.