AK7864

[AK7864] AK7864 3 channel LED driver with Charge Pump Device Outline This product is include the charge pump power supply and include the 3 channel LED driver who drives the LED of the anode common in the constant current . The current to pass for each channel can be adjusted by the external resistance and the register setting. Also, it has the control pins which turn on or off the current. It is the best for the LED drive for the CIS sensor. Features ■ Operation Voltage ■ Operating Temperature Range ■ LED driver current 3.3V±5% 0 ~ 70℃ RED: 66mA (Adjustment external resister:22 ~ 66mA) GREEN: 66mA (Same as above, each channel is spec in absolute value.) BLUE: 66mA (Same as above, each channel is spec in absolute value.) Usable Vf MAX range of the LED is 4.8V. The resistance for the current regulation is usable in 1/16W -type. ▪ 50% setting is an upper bound when 3ch becoming turning on at the same time. ▪ ▪ 3ch independent ON/OFF. Current setting in eight steps the external resistance value becomes the When assumption outside, it has the protection circuit which doesn't make the electric current which flows through the LED equal to or more than 150mA（-30%～+45%） ±9.1%（by ideal resistance） 10μs (typ.) (10% ~ 90%) Generate the necessary voltage for the LED （Vf max 4.8V） 16pinQFN 3mm, 0.75mm thickness with radiation TAB in Solderside VDD 3.135 ~ 3.465V A light source driver for CIS module of MFP ■ ■ ■ ■ Current Accuracy LED Current rise / fall time Charge Pump pressor circ...