The development of TI LED IC can be used to drive white organic EL panel

TI (Texas Instruments) successfully developed a light organic EL panel white LED driver IC TPSC61140". Mainly for mobile phone use. For example, can be used to light up the phone's main screen backlight LED and sub screen organic EL panel. To this end, the IC is equipped with current and voltage output system, can be independently controlled. Output current can be lit white LED, output voltage can be lit organic EL panel. The output current is controlled by the 1.2Mhz signal of the PWM, and the output voltage is controlled by the PFM signal. In addition, the white LED drive IC "TPS61150" which can drive dual output current has also been developed successfully.

TPS61140 and TPS61150 voltage range, output voltage and output current are all the same, are 3 ~ 6V, 27V, 700Ma. The two are 3mm square QFN package. Have begun to mass production supply, the purchase price of $1.85 per 1000 and $1.65. (reporter: root Jin Zhen)