Sunnyvale, Calif. Supertex has introduced the HV9980, a three-channel, high-voltage LED driver aimed at LCD panel backlighting and DLP television (TV) applications.
The HV9980 features three channels of peak current mode control that include a switch for regulating the LED current, enabling 95% efficiency in DLP television applications. Each channel features an integrated, 160 V, 25 ohm MOSFET and individual PWM and linear dimming inputs.
The fast and well-controlled transient response of the HV9980 peak current mode control enables implementation of local dimming and/or scanning mode applications for LED backlights, said Supertex. 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 HV9980 is available in a 24-lead SOW package (HV9980WG-G). The part is green and RoHS compliant.
Pricing: $1.71 each in quantities of 1,000.
Availability: Samples are available from stock. Lead time for production quantities is four to six weeks ARO.
Product information: HV9980
Supertex, Inc., 1-408-222-8888, www.supertex.com