WS9420 parameter
1. The operating temperature range is -40°C to 105°C,
4. Internal integrated 500V power tube,
Available in SOT23-3,TO-92 package form.
< br \/ >
Product features: no-CAP patent control topology; It has the function of automatic chip turn-off when the output is open, 3-10W wide range adjustable output, built-in intelligent temperature control function, built-in overtemperature protection function.
Product description: WS9420 is a single pole step-down LED driver chip, the chip integrated 500V high voltage power tube, the use of patented control mode,
< br \/ >
No secondary feedback circuit, no transformer auxiliary winding detection and power supply, no VCC power supply capacitor, only a few peripheral components are needed to achieve constant current, greatly saving the cost and volume of the system
< br \/ >
Product advantages: 1, the use of High-side architecture, with higher constant current accuracy and anti-interference ability; 2, the system efficiency can reach 92%; 3, omit Vcc capacitor,
The output electrolysis can also be omitted, without affecting the efficiency of the system, and the electrolysis can work normally in the case of failure;