For the LED driver configuration shown in Fig. 3.43 where an output of LOW on the driver will turn on the LED, if VCC = +3.4v, R = 500 O, Vf = 1.9v, and IO-MAX = 15 mA, is the maximum output current...

For the LED driver configuration shown in Fig. 3.43 where an output of LOW on the driver will turn on the LED, if VCC = +3.4v, R = 500 O, Vf = 1.9v, and IO-MAX = 15 mA, is the maximum output current specification violated? For the LED driver configuration shown in Fig. 3.43 where an output of LOW on the driver will turn on the LED with VCC = +5v and Vf = 1.9v, calculate the value of the resistor (R) in order to set the current through the LED to be 5 mA.