PT6913

DESCRIPTION PT6913 is a special current regulator to drive HV LED. Compact, few external components design is very flexible in many applications. PT6913 provides a programmable 10~100mA constant current. Maximum 400V input voltage provides high reliability for HV LED lighting. The simple driving topology will improve power factor, efficiency. EMI issue will be avoided with this linear control. Special design is convenient in high-side application. LED open/short is protected by PT6913. The high voltage will be absorbed by PT6913 itself. LEDs will never face high voltage problem. To improve driving capability, PT6913 provides a pin to drive external MOSFET. It will be flexible in larger current application. PT6913 also provide temperature compensation. When internal junction temperature is higher than 135 ℃ , PT6913 will decrease the output current linearly. The output current will be zero when junction temperature reaches 150℃. This protection effectively avoids the flicker problem during abnormal environment temperature. APPLICATIONS  GU10, MR16, E11, E17 LED Bulb  Compact Size LED Lighting  TRIAC Dimming BLOCK DIAGRAM Reference PT6913 Current Regulator for HV LED FEATURES  5V~400V Operating Voltage  10~100mA Programmable Output Current  ±5% Current Accuracy (Target)  Less Than 150uA Operating Current  Parallel Using for High Current Application  Driving External MOSFET for Larger Current  LED Short Protection  Temperature Compensation When TJ>135℃, output cur...