Three Channel, High Voltage, LED Driver Features Integrated, Current Regulating Switch
Supertex introduced the HV9980 three channel, high voltage, LED driver IC. The IC is well suited for both LCD and DLP television applications. It features three channels of peak current mode control including a switch for regulating the LED current, enabling 95 percent efficiency in DLP television applications. Each channel features an integrated, 160V, 25? MOSFET and individual PWM and linear dimming inputs. The fast, well-controlled transient response of the devices peak current mode control enables implementation of local dimming and/or scanning mode applications for LED backlights. A large array of HV9980 ICs can be synchronized to a system clock to eliminate beat frequencies. All three channels of the IC are equipped with short-circuit and over-temperature protection. The IC is available in a 24-lead SOW package (HV9980WG-G). The part is Green and RoHS compliant. Samples are available from stock. Lead-time for production quantities is 4 to 6 weeks ARO. Pricing is $1.71 each for the HV9980WG-G in 1K quantities.