IWatt release can control 32 LED LCD TV LED backlight driver IC

America iWatt company released the 32 column LED control LED driver IC "iW7032", the products are mainly used to drive the LCD TV backlight light source. According to iWatt, by increasing the LED column and the integrated MOSFET control components (BOM:bill, of materials cost) than the original LED driver IC is reduced. The maximum supply voltage of each column LED is 56V. Each column can be connected in series about 15 LED, so iW7032 can drive a total of 480 LED. When the forward voltage (Vf) varies with LED, it also has the function of automatically adjusting the supply voltage to the LED column. In this way, each iW7032 power consumption can be reduced by 2 ~ 5W. According to the company, the Japanese TV manufacturers have been applied to iW7032 products.

The company's original LED driver IC can control up to 16 columns LED. Therefore, in the past need to use 2 LED driver IC the use of the 1 iW7032 can be completed. In addition, the original LED driver IC 1 LED on each column of the MOSFET, while the iW7032 is built with MOSFET, so no need to re MOSFET. "We import the iWatt technology to deal with MOSFET alone ("). When using 1 iW7032, the BOM can be reduced by 1 to $3, while the area of the printed substrate can be reduced by half.

IW3072 has three modes of real-time control of LED brightness. For example, in the "Local Dimming" mode, with dark image video content, reduce the brightness of back light source LED. It also supports the "3D" model for three-dimensional (3D) TV and the "Scanning" mode for reducing flicker. IW7032 sample price, the bulk of the purchase of 1000, each priced at $3.80.