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Power controller geared for automotive apps

Posted: 17 Apr 2012 ?? ?Print Version ?Bookmark and Share

Keywords:power controller? automotive application? voltage regulator?

Texas Instruments Inc. (TI) has announced a dual output power supply for automotive applications that according to the company ensures stable, uninterrupted output voltages, even in cases where the input voltage drops significantly below the output voltage levels. The company also stated that the TPS43330-Q1 family remains fully functional during such voltage drops and ensures that applications continue to work without interruption or performance reduction.

The TPS43330-Q1 family features an input voltage range of 2-40V and transients up to 60V that ensure continued operation, even under severe battery voltage conditions. An ultra-low quiescent current as low as 35?A and lower shutdown current of 5?A reduce the overall application power consumption from the battery in standby operation, extending battery lifetime and eliminating the need for a standby voltage regulator.


The TPS43330-Q1 family features input voltage range from 2-40V.

The device boasts a spread spectrum frequency modulation that reduces conducted electromagnetic interference and allows for simpler, lower-cost filters. TI added that the devices integrate multiple voltage rails and voltage supervisors that cut PCB space, design complexity and system cost compared to a discrete solution. Likewise, dedicated high-side FET driver enables overall efficiency improvement by bypassing the external reverse-battery protection diode with an external PMOSFET.

TI offers a variety of tools and support to speed design with the Power Stage Designer and Automotive Power reference design for PMP7001.1 and PMP7031. Evaluation modules are also available for the TPS43332-Q1, TPS43335-Q1 and TPS43336-Q1 devices. Samples of the TPS43330-Q1 and TPS43332-Q1 are available in an HTSSOP-38 (DAP) package. Suggested retail pricing for the TPS43330-Q1 family ranges from $2.85 to $3.10 in 1000-unit quantities.

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