we are using ADM8845 as backlight LED driver for two series LEDs in a small dotmatrix LCD. Unfortunately, there are some ADM8845 ICs which have too high current consumption (about 75mA) despite of correct function of LED backlight. In addition these defect ICs become very warm. The external circuity seems to be alright. So I don't understand why this problem occurs. Could you please help me with a solution?