The launch of the United States can drive 15 white LED driver IC

MAX16822A integrated products (Maxim Integrated Products) released 4 built-in power MOSFET and high voltage circuit side current detection circuit LED driver IC, MAX16822B, MAX16832A, MAX16832C". MAX16822A, MAX16822B output power of 18W, MAX16832A, MAX16832C is 4, 36W products can drive up to the 15 series of white LED. Mainly used in building and vehicle lighting equipment.

The input voltage range is 6.5 ~ 65V. The maximum switching frequency is 2MHz. Power conversion efficiency can reach 95%. MAX16822A, MAX16822B can be driven by the current 350mA series LED, and MAX16832A, MAX16832C can be driven by 700mA. Using the input analog signal or PWM signal to adjust the light. LED drive current accuracy is + 3%. Built in 65V power MOSFET, so no external power transistor. Built in MOSFET on resistance, MAX16822A, MAX16822B 0.85, MAX16832A, MAX16832C is 0.45. The output ripple current situation is: the type of A MAX16822 MAX16832A, the mantissa is below 10%, while the B or C MAX16822B, MAX16832C is less than 30%.

Package using 8 terminal SO. MAX16832A, MAX16832C equipped with cooling pad. The working temperature range of -40 to 125 C. At present, MAX16822A, MAX16822B and MAX16832A have begun mass production, and MAX16832C is still in the development stage. The reference price for every 1000 or more bulk purchases is: MAX16822A, MAX16822B for $0.99, MAX16832A, MAX16832C for $1.31.

The United States and the United States integrated product built-in power MOSFET and high-voltage side current detection circuit LED driver IC

Source: Nikkei BP