Characteristics Comparison of High-voltage Linear Constant Current Chip SM2082EG and SM2091E
Under the trend of the times, the technical development of the high-voltage linear constant current chip has also been followed by progress. In the previous high-voltage linear constant current chip, only the scheme below 10W can be implemented, and programs like high-power high-voltage linear constant current chips cannot be implemented. . High-voltage linear constant current chip technology is different from the past, look at the characteristics of high-voltage linear constant current chip SM2082EG and SM2091E contrast, to positively reflect the development of high-voltage linear constant current chip technology in the end. The high-voltage linear constant current chip SM2082EG is a dual-channel LED linear constant current driving chip that supports SCR dimming application circuit. It uses the patented constant current control technology of R & D Co., Ltd., which is able to pass the external REXT resistance. The set current value can be between 5mA and 120mA, and the constant current accuracy is within an alarming ±4%. This is one of the characteristics of the high-voltage linear constant-current chip SM2082EG, and the output current does not change with the voltage at the out-port. Constant current performance is better, this is the embodiment of SM2082EG technology. Secondly, the SM2082EG chip has a simple structure and does not require much effort when designing. The SM2082EG's typical application scheme circuit design diagram is described in the specification of the SM2082EG high-voltage linear constant current chip. The high-voltage linear constant current chip SM2082EG chip input voltage range value changes between 120vac~220vac, with over-temperature protection adjustment function, and the high-voltage linear constant current chip SM2082EG temperature protection point is at 110 degrees, when the LED lamp product internal temperature exceeds this value, Then the SM2082EG's over-temperature regulation function will reduce the power output, the current will drop, and the temperature will decrease. Third, the high-voltage linear constant current chip SM2082EG peripheral PCB design circuit is simple, can share together with the PCB board, can replace the vast majority of chips on the market and do not need to replace the line. The above mentioned are some of the features of the high voltage linear constant current chip SM2082EG. Let's take a look at the characteristics of the high voltage linear constant current chip SM2091E and see if there are any differences. High-voltage linear constant current chip SM2091E is a single-segment high-precision linear constant current LED chip, SM2091E features I have listed as follows: high voltage linear constant current chip SM2091E voltage output out port output current adjustable external, maximum current up to 80mA Adjustable between. And SM2091E chip output current deviation "± 4%; input voltage: 120Vac/220Vac. High PF solution F"0.9, low PF solution F"0.5 doesn't flicker. Input line voltage compensation, within the range of rated input voltage, regulates the output current through external resistors to maintain constant input power. 1. The solution cost is low and the system structure is simple. 2. There are few peripheral components and there is no electrolytic capacitor. 3 can be a wick, can be shared pcb board. 4. With over-temperature over-voltage protection. 5. Long life, good stability, suitable for automated production. High-voltage linear constant current chip SM2091E is a constant power, constant lumen chip products, temperature protection point at 120 °, much higher than the SM2082EG, and SM2082EG no constant power function, and high voltage linear constant current chip SM2091E more SM2082EG can do high-power program applications. Good solution for high power applications. However, both are playing a leading role in some programs. Each LED lighting product manufacturer can refer to it when choosing a solution. Wall Power Switch And Socket,Remote Control Electrical Outlet,Battery Powered Light Switch,Electrical Outlet With Switch ZHEJIANG HUAYAN ELECTRIC CO.,LTD , https://www.huayanelectric.com
