Lattice Century Semiconductor publishes the industry's highest precision constant current LED driver chip
Lattice Century Semiconductor introduces the industry's highest precision constant current LED driver chip "PXC8832". The problem of brightness errors common to LED displays is usually caused by the output current error of the LED itself or the LED driver chip. With the goal and responsibility of providing the highest quality and performance, Jingye Century Semiconductor has developed and improved the display uniformity by virtue of years of experience in LED display and innovative analog chip design technology. A new generation of driver chip "PXC8832" that can tolerate larger LED turn-on voltage variations and brightness differences.
Lattice Century Semiconductor's PXC8832 reduces the typical channel-channel skew between output channels to ±0.7%, and the chip-to-chip skew (Thip-Chip Skew) is typically reduced to ±0.9% compared to use. The constant voltage driver chip or the current constant current driver chip on the market, PXC8832 not only greatly improves the image quality, but also enhances the life of the LED. Lattice Century Semiconductor's PXC8832 can support extremely short channel enable times to less than 100 nanoseconds, and the picture can still be as uniform as high brightness when it can further enhance the grayscale resolution of the picture. When using high-efficiency LEDs, that is, the required chip drive current output (about 3 mA). Under very low conditions, the PXC8832's output current difference can still maintain the LED display with excellent brightness and uniform color. degree.
PXC8832 is manufactured using a semiconductor manufacturing process with excellent process, with circuit design to minimize the impact of process error on chip characteristics, and using a complete test program and quality control process to verify the best quality LED driver chip, Crystal Century Semiconductors try their best to meet customers' needs for the best chips, and LED display manufacturers can easily use PXC8832 to achieve better picture quality and lower costs.
The PXC8832 is now in volume production and ready for delivery. The PXC8832 is available in four standard package options, SOP24-1.0mm (PXC8832SA), SOP24-1.27mm (PXC8832SB), SSOP24-0.635mm (PXC8832SS), and 丶QFN24-4mmx4mm (PXC8832QF).
Lattice Century Semiconductor's upcoming LED driver chips include:
1. PXC3402 is a single-channel switching regulator chip for driving constant current and high power LED. It can be widely used in the fields of automation, industrialization and general lighting. The chip contains a high-performance high-voltage N-type MOSFET switching device that can pass currents up to 500mA (typ), which can be effectively used in buck regulators. The MOSFET is controlled to be turned on and off by monitoring the voltage across the external current feedback resistor in real time, so that the current output to the LED string is continuously stabilized at a constant value. The brightness of the LED can be controlled by an external PWM (Pulse Width Modulation) signal. The PXC3402 also features peak current limiting, output voltage overvoltage protection, low power shutdown, and thermal protection.
2. PXC8833 is suitable for traffic information display.
3. PXC8835 is suitable for LED backlight driving for LCD TV.
4. PXC8901 is suitable for applications such as full-color screen building or bridge building lighting project.
5. PXC8902 is suitable for applications such as full-color lighting points, building or bridge building lighting projects.
The above wafers are available from the company for product specifications and sample supply design.
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