This part is a kind of semiconductor called SP5005.
Function of this product has Efficient ZVS CCFL monitor circuit.
Manufacturers : Wuxi
Image and pinout :
Some of the text within the PDF file :
SP5005 SOP16 PWM PWM · · · · · · · MODSEL PWMDC CTPWM PWMOUT CLAMP LOAD ISEN 2.5V 60uA 1.0V OR TIME_P RT Low F requency PWM Generator Protection Circuit TIME_INN CLAMP TIME_INN INN CLAMP UVLO CMP 1.25V AND DELAY NOUT2 AND AND BAND GAP REF. TIME_INN TIME_P RT AND DELAY NOUT1 AND AND 1/2 Clock Ramp Wave NOT SP5005 VDD=4.5V-8.0V ON/OF F CTOSC LOAD TIMER -1- Free Datasheet http://www.0PDF.com -2- Free Datasheet http://www.0PDF.com 4.0 Vdd=8 Ta=25 1.2125 2.2 1.25 2 4.0 0.2 8 V mA V mV V V kHz V V V dB Mhz uA uA V V V mV V mV uA V V Hz V V V % Pin1 Vdd=4.0-13.2V Ta=25 1.2875 20 4.2 0.3 400 3.8 0.1 50 2.30 0.4 0.1 60 1 Pin5 0.3V Pin5 0.3V Vdd=12V Ta=25 3 80 1.5 20 1 0.3 2.5 1.3 20 2.0 20 60 2.5 1.0 PWM 0% pin13 Pin16=0V 0% pin13 Pin16=Vdd pin13 pin13 10 [ ... ]