BD6067GU Datasheet | ROHM

Description Switching Regulator type LED Driver Series for small LCD backlight are boost DC/DC converters possible to drive the white LEDs at constant. It is possible that turning on white LED steadily by a series connection which has no current variation, and by a fast transient response with current mode. And, BD6069GUT/BD6071HFN/BD6072HFN are white LED driver ICs with synchronous rectification. With synchronous rectification (no external schottky diode required) and small package, they can save mount space. BD6071HFN suited over voltage and over current limit from BD6069GUT/BD6072HFN. - Features 1) Boost DC/DC converter 2) Adjustment of brightness by external PWM pulse 3) Possible to driving 3 LEDs (BD6071HFN ) 4) Possible to driving 4 LEDs (BD6069GUT, BD6072HFN) 5) Possible to driving 8 LEDs (BD6067GU) 6) Soft start function (BD6067GU, BD6069GUT, BD6071HFN, BD6072HFN) 7) Synchronous rectification Boost DC/DC converter (BD6069GUT, BD6071HFN, BD6072HFN) 8) No external schottky diode required (BD6069GUT, BD6071HFN, BD6072HFN) 9) Output Open - Short protect (BD6069GUT, BD6071HFN, BD6072HFN) - Applications These drivers are applicable for various fields such as mobile phones, portable game machines, Inter-phone camera, audio player, portable DVD player, back light for printer display etc… and support light of the camera for the mobile phone, simple flash. And, these can use power supply for OEL. - Line up matrix Parameter BD6067GU BD6069GUT BD6071HFN BD6072HFN Input voltage range 2.7 ~ 5.5V 2.7 ~ 5.5V 2.7 ~ 5.5V 2.7 ~ 5.5V Switching frequency 0.8 ~ 1.2MHz 0.8 ~ 1.2MHz 0.8 ~ 1.2MHz 0.8 ~ 1.2MHz White LED number 5~8 4 3 4 Operating temperature range -30 ~ +85℃ -30 ~ +85℃ -30 ~ +85℃ -30 ~ +85℃ Package VCSP85H1 VCSP60N1 HSON8 HSON8 .rohm. © 2011 ROHM Co., Ltd. All rights reserved. 1/29 - Rev.C BD6067GU, BD6069GUT, BD6071HFN, BD6072HFN - BD6067GU - Absolute maximum ratings (Ta=25℃) Parameter Symbol Power supply voltage 1 VMAX1 Power supply voltage...