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The following page content corresponds to the products formerly marketed by NEC Electronics

Applications > System Applications > Digital Home Electronics > Digital AV >

Digital LCD TVs


The backlight of LCD TVs uses a backlight inverter circuit for lighting cold-cathode fluorescent lamps (CCFLs) or external electrode fluorescent lamps (EEFLs), which are fluorescent tubes.

We provide low on-resistance MOSFETs suitable for multiple-lamp half-bridge or full-bridge 24V input for backlight inverters. Furthermore, our highly functional microcontrollers with a built-in timer and highly accurate PWM waveforms are ideal for inverter control.

Digital LCD TVs


Functional block diagram of Digital LCD TVs

See Digital TVs.

Recommended device

Microcontroller for inverter control


Product Name/Alias Features
78K0R/Ix3 16-bit All Flash microcontroller: wealth of on-chip peripheral functions such as a high-speed A/D converter; highly accurate PWM output via 40 MHz operation, 30 to 64 pins
78K0/Ix2 8-bit All Flash microcontroller: wealth of on-chip peripheral functions such as a high-speed A/D converter; highly accurate PWM output via 40 MHz operation, 16 to 30 pins


Microcontroller


Product Name/Alias Features
78K0S/Kx1+ 8-bit All Flash microcontroller: wealth of on-chip peripheral functions such as a reset circuit and on-chip oscillator; 10 to 30 pins


Power MOSFET


Product Name/Alias Features
2SK4075 VDSS = 40 V,RDS(ON) = 6.7 mΩ(MAX.)(industry-leading low on-resistance),TO-252 package
2SK4076 VDSS = 40 V,RDS(ON) = 16 mΩ(MAX.),TO-252 package
2SK4077 VDSS = 40 V,RDS(ON) = 20 mΩ(MAX.),TO-252 package
2SK4078 VDSS = 40 V,RDS(ON) = 8.5 mΩ(MAX.),TO-252 package
2SK4184 VDSS = 40 V,RDS(ON) = 8.5 mΩ(MAX.),TO-263 (high power) package



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