Datasheet TP5000 (Top Power ASIC) - 8

南京拓微集成电路有限公司 NanJing Top Power ASIC Corp. Figure 6 TP5000 The two connected lithium drive 5W LED Application Diagram The (RTRICK pin unconnected) TP5000 Note 1. The circuit capacitance should be as close as possible to the chip. 2. The the VS end of the VIN end and BAT end use of tantalum capacitors, X5R or X7R level ceramic capacitors or electrolytic capacitors plus 0.1uF ceramic capacitor. 3. The inductor selection of the current capacity is sufficient power inductor. 4. The Schottky diode choose conduction voltage drop current capability greater than or equal to 2A Schottky diode. 5. For VIN and LX should be wider than the ordinary signal lines through the traces of the current loop. 6. Pay attention to the the capacitive grounding line node location, and should try to make the ground point focused, well-grounded. 7. Use the chip in the high-current work, should be considered a good connection of the chips at the bottom of the heat sink and the PCB to ensure good heat dissipation.