Demo description of LED step-down constant current drive based on core Dingsheng tx6121dc-dc constant current chip design
Schematic diagram of LED constant current drive chip tx6121demo
LED constant current drive chip tx6121demo circuit board
Actual measured number of tx6121 demo board
Tx6121 demo board measured data and conversion efficiency reference
This demo is a demonstration board made of LED constant current chip tx6121. It is used for the application demonstration of DC input 12-80v, output voltage 9V and output constant current 2.7A. The maximum conversion efficiency is as high as 90%.
The fixed working frequency of this circuit is 36.76-183.8 kHz. Output 9V / 2.7A, output current adjustable.