TI LED driver provides high resolution for display screen

The day before, TI (TI) announced the launch of the 16 channel two applies to large color display the constant current sink type LED driver (sink LED driver), so as to meet the electronic devices of the light emitting diode (LED) display large complex power requirements. The two driver provides dynamic brightness higher reliability and better control for the design staff, to display advertising, stadium scoreboard and video display device has higher resolution and efficiency. For more details, please refer to: www.ti.com/sc05076. TLC5940 has the industry leading channel and channel and between the chip and the chip, thereby improving the overall display quality. Integrated circuit (IC) on each channel with 4096 level pulse width modulation (PWM) can independently adjust the brightness control and 64 point correction function, the display can be selected up to 68 billion 700 million colors to enhance color resolution. The point correction function on the device compensates for the difference in brightness between individual LED in the system.

In addition to TLC5940, TI also provides a low cost TLC5923 driver without grayscale PWM features. The flexible power management chip with 128 point correction and on / off state function. Other features include TLC5940 and TLC5923 LED drive: 30 Mhz of data transmission rate; the input voltage range of between 3 to 5.5 between V V and TLC5923 TLC5940; each channel of the drive capacity were 120 mA and 80 mA; between the channel and the channel of the accuracy of 1% (typical); between the chip of with the chip with an accuracy of 2.7% (typical); LED (LOD) of open circuit detection and thermal error protection (TEF). The price and availability of TLC5940 and TLC5923 are now available, and can be ordered through TI and its authorized distributors. The TLC5940 is available in 28 pin HTSSOP, PDIP or small QFN packages, while the TLC5923 is available in a 32 lead HTSSOP package. When the volume of thousands, TLC5940 and TLC5923 suggested retail price of $2.90 and $1.90. The industry's leading power management IC technology TI is committed to innovative products and technical support to meet customer demand for power design. TI makes full use of the analog and digital system of profound professional knowledge and manufacturing capabilities, provide discrete and high performance integrated power management solutions to customers, and be able to take time for any portable power supply line isolated or non isolated power supply design challenges - covers mobile phone and PDA and telecommunications, industrial and computing applications etc..