SUN8602 无锡日晟微电子有限公司 1.3A Fixd Frequency White LED Driver DESCRIPTION The SUN8602 is a steep-up converter designed for driving up to 39 white LEDs(13 strings of 3 LEDs each)from a 5V system rail. The SUN8602 uses a current mode,fixed frequency architecture to regulate the LED current ,which is measured through an external current sense resistor. Its low 101mV feedback voltage reduces power loss and improves sfficiency. The OV pin monitors the output voltage and turns off converter if an over-voltage condition is present due to an open circuit condition. The SUN8602 includes under-voltage lockout, current limiting and thermal overload protection preventing damage in the event of output overload. The SUN8602 is available in small 6-pin Sot23 or 8-pin QFN (2mm*2mm) package. FEATURES 2.5V to 6V Input Voltage Range On Board Power MOSFET Drives up to 39 White LEDs at 5V Input Up to 92% Efficiency Over 1MHz Fixed Switching Frequency Open Load Shutdown Low 104mV Feedback Voltage Soft-Start/PWM Dimming UVLO, Thermal Shutdown Internal 1.3A Current Limit APPLICATIONS Cell Phones Handheld Computers and PDAs Digital Still Cameras Small LCD Displays www.sunriseic.net ｓａｌｅｓ＠ｓｕｎｒｉｓｅｉｃ．ｎｅｔ 无锡日晟微电子有限公司 SUN8602 无锡日晟微电子有限公司 Ｗｕｘｉ Ｓｕｎｒｉｓｅ Ｍｉｃｒｏｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ 无锡地址： 江苏省无锡市蠡园经济开发区标准厂房Ａ４栋３０８ 电话：０５１０－８５１６７３９１ 传真：０５１０－８５１６７３９１ 网址：ｗｗｗ．ｓｕｎｒｉｓｅｉｃ．ｎｅｔ 深圳地址： 广东省深圳市福田区彩田路福源大厦１栋２２Ｆ 电话：１８８２０２４９８０３（电信座机） 电话：１８８１８７８５７２１（电信座机） 传真：０７５５－８２９０２１８３ 网址：ｗｗｗ．ｓｕｎｒｉｓｅｉｃ．ｎｅｔ 邮箱：ｓａｌｅｓ＠ｓｕｎｒｉｓｅｉｃ．ｎｅｔ www.sunriseic.net ｓａｌｅｓ＠ｓｕｎｒｉｓｅｉｃ．ｎｅｔ