Global Sources
EE Times-India
Stay in touch with EE Times India
 
EE Times-India > Power/Alternative Energy
 
 
Power/Alternative Energy  

Multiple-output regulator aimed at automotive LCDs

Posted: 30 Jan 2015     Print Version  Bookmark and Share

Keywords:Allegro MicroSystems  regulator  LCD  MCU 

Allegro MicroSystems LLC has introduced an AEC-Q100 qualified, multiple-output regulator geared to power car LCD panels. The A8603 operates with fixed switching frequency that can be either programmed or synchronised with an external clock signal between 350kHz and 2.25MHz which will reduce interference with AM and FM radio bands, according to the company.

An I2C-compliant serial interface allows a system MCU to configure the A8603 by writing into its internal registers. A system controller can also access A8603's status registers in case of fault conditions.

A8603

The A8603 incorporates a boost stage followed by two linear regulators and two charge-pump regulators. Each output voltage can be programmed independently through the I2C serial interface. During power-up and shutdown, the outputs are turned on and off in pre-programmed sequences with adjustable delay. This allows the user to meet the sequencing requirements for specific LCD panels. Short circuit protection is provided for all outputs. The internal boost switch is protected against overcurrent and overvoltage.

The A8603 is available in a 24-pin, 4mm x 4mm QFN package. It has an exposed thermal pad to allow operation at high ambient temperatures and is lead-free with 100 per cent matte-tin lead frame plating.





Comment on "Multiple-output regulator aimed at a..."
Comments:  
*  You can enter [0] more charecters.
*Verify code:
 
 
Webinars

Seminars

Visit Asia Webinars to learn about the latest in technology and get practical design tips.

 

Go to top             Connect on Facebook      Follow us on Twitter      Follow us on Orkut

 
Back to Top