Maxim Integrated Products Inc. introduced white LED charge pump

Maxim Integrated Products Inc. introduces the MAX8645X / MAX8645Y, a minimum of two white LED drivers for camera module-powered low-dropout linear regulators. The total area of ​​these charge pumps is reduced by 40% with the integrated white LED driver and the camera flash driver and camera module are powered down to a single IC. These devices are suitable for cell phone LCD and lighting module. The MAX8645X / MAX8645Y integrate two programmable 200mA, low dropout linear regulators for camera module operation. These low dropout linear regulators feature low noise performance to ensure a stable power supply during image acquisition. This is important for high-resolution image noise reduction. Two pins allow the choice of nine different output voltage combinations. The use of a charge pump regulator can achieve the thinnest design due to the absence of a sensor. In addition, the patented 1x / 1.5x / 2x charge pump and ultralow dropout current regulator achieve an average efficiency of 85%. The MAX8645X / MAX8645Y provide a fixed 1MHz switching frequency allowing the use of tiny external components and further reducing the overall solution size. Six WLEDs can be driven at 30mA with 5 levels of dimming per LED and 0.2% current matching; it is also possible to drive two flash LEDs up to 200mA each. Dimming control can be achieved through a 2-bit logic interface or logic pins that can be connected together and used as a serial pulse interface. Other features include soft start, overvoltage and thermal shutdown protection. The MAX8645X / MAX8645Y are available in a 28-lead thin TQFN, 4mm x 4mm lead-free package (0.8mm maximum height). Temperature range is 40 ° C to + 85 ° C. Pricing packages starting at $ 2.81 (1,000 FOB FOB) are now available. Key Features Drive Up to 8 LEDs 30mA / LED Drive Current for Backlight 400mA Total Drive Current for Flash Two Built-in Low Noise 200mA LDOs Maximize 94% Efficiency @ Li + Battery Discharge Voltages % Average Efficiency (PLED / PBATT) LED Current Matching: 0.2% (typical) Adaptive 1x / 1.5x / 2x Mode Switching Flexible Brightness Control Single-Wire Serial Pulse Interface (32 Levels) 2-Bit Logic ) Thermal TA Derating Protection Low Input Ripple and Low EMI 2.7V to 5.5V Supply Voltage Range Soft-Start, Overvoltage and Thermal Shutdown Protection 28-Pin, TQFN, 4mm x 4mm Package

Home Decoration Smart Glass

Dimming glass is an active switchable glass technology meaning it needs electricity to control. Smart tint glass systems utilize electrochromics, which is the science of darkening a material using electricity. Peeling Smart Blind Film may need to be replaced. Sometimes you can fix Magic Film by rinsing it in soap and water and then using a squeegee to place Projection Film back in place, making sure to smooth out any bubbles first. However, it is generally better to mark a square around the damaged area and cut it away with a razor blade. Applications of dimming projection are not limited to the home, but are especially useful in offices and public places. For office use, the glass partition instant projection screen is used for conference presentation. Public places such as shops, shopping malls or airports are used as advertising displays, dimmer projection is more attractive. Shopping malls can turn the monotonous glass window into a large area of transparent holographic projection film, in high - clarity advertising at the same time, will not hinder consumers through the window to watch exhibits and in-store scenery, the magic display effect greatly attract passing consumers, so as to achieve a better publicity effect.

Home Decoration Smart Glass,Privacy Laminated Glass,Smart Laminated Glass,PDLC Laminated Glass,Switchable Laminated Glass,Privacy Tint Glass

Tianqixun Technology , https://www.tqxdisplay.com