CAT32 white LED driver circuit diagram

Published:2011/8/25 21:04:00 Author:Lucas | Keyword: white LED driver | From:SeekIC

CAT32 is the DC / DC step-up converter with adjustable output current. CAT32's main technical characteristics are as follow. ① Low Quiescent Current: 0.5mA. ② it uses low-resistance (0.5Ω)and high-voltage power switch, and the power efficiency is above 80%. ③ pin configuration is compatible with LT1932. ④ adjustable output current is up to 40mA, which can drive up to four series of white LEDs. ⑤ operating frequency is 1.2MHz, and it can use an external low inductor, capacitor. ⑥ When the input voltage is as low as 2.0V, it also can work. ⑦ Shutdown current is less than 1μA. ⑧it has open load protection.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/LED_and_Light_Circuit/CAT32_white_LED_driver_circuit_diagram.html

Print this Page | Comments | Reading(3)