New LED Drivers Offer Designers a Host of Functions for Diverse Applications
Wed, 01/05/2011 - 11:06am
Toshiba America Electronic Components, Inc. (TAEC) today expanded its family of light emitting diode (LED) drivers with the announcement of four new device families. The TC62D748A, TC62D749A, TC62D722 and TC62D776 LED drivers (LEDDs) are 16-channel, constant current, high-speed devices designed to regulate back lighting in LCD panels, digital TVs and notebook PCs or light control in large RGB panel LED displays. Each of the new devices was developed to address specific application challenges. For example, the high-end TC62D722 family has a unique 16-bit pulse-width-modulation (PWM) output mode that is very effective in reducing display flicker. The TC62D776 LEDDs, meanwhile, incorporate a new standby mode that can reduce an LED panel's idle-state power consumption by up to 1,000 times less than LEDDs that don't have this functionality. Finally, the TC62D748A/749A family of simple LEDDs offers constant-current output voltage characteristics easily adjustable using only one external resistor and a power-on reset mode. Each of the four new LEDD families is fabricated in Toshiba's world-class CDMOS process technology and is RoHS1 compatible. These new LEDDs feature a 16-channel output current value that is controlled by one external resistor, which allows for more tightly regulated power flow to a panel's LEDs for superior display illumination.