Ultra introduced new variable frequency LED driver

Chaoke launched a PWM controller with variable frequency IC (integrated circuit) HV9930. The product can automatically step-up and delivery plan to use low noise lifting topology except the input voltage to control LED lamp. HV9930 uses hysteresis current mode control technique for patent examination, the input and output current to be adjusted, without complex auxiliary circuit and the external parts of the condition, can produce fast transient response the.

With 8-200 V DC input range of HV9930, is an ideal choice for automotive LED lighting, LCD TV and RGB monitor backlight applications. Input and output current control, can provide a fixed protection under the short-circuit of the circuit, and the capacitive isolation of the topology can also protect the LED from the MOSFET switch failure.

"HV9930 to the designer provides an efficient and low component, LED output voltage can be automatically step-up and degradation scheme," Ahmed Masood, director of market development department said. "This simplicity has further strengthened the leadership of the super division in the LED drive market, and has demonstrated our commitment to provide innovative, energy efficient solutions to our customers."

HV9930 has PWM adjustment capacity, load ratio is 0-100%. The efficiency of HV9930 based LED lamp driver can reach more than 85%.

HV9930 can use 8 Pin DIP package (HV9930P) and 8 Pin (HV9930LG) SOIC package. The earliest delivery time of the goods after receipt of the order is 4-5 weeks. 1K number of HV9930P price is S$0.87/, HV9930LG is US$0.91/.