The error amplifier has two uncommitted inputs, EA+ and EA-, with a 3-MHz unity bandwidth, which allows
flexibility in closing the feedback loop. The EA+ is a non-inverting input, the EA- is an inverting input and the
COMP is the output of the error amplifier. The input voltage common mode range, where the parameters of error
amplifier are guaranteed, is from 0.5 V to 3.6 V. The output of the error amplifier is connected internally to the
non-inverting input of the PWM comparator. The range of the error amplifier output of 0.25 V to 4.25 V far
exceeds the PWM comparator input ramp-signal range, which is from 0.8 V to 2.8 V. The soft-start signal serves
as an additional non-inverting input of the error amplifier. The lower of the two non-inverting inputs of the error
amplifier is the dominant input and sets the duty cycle where the output signal of the error amplifier is compared
with the internal ramp at the inputs of the PWM comparator.
The error amplifier has two uncommitted inputs, EA+ and EA-, with a 3-MHz unity bandwidth, which allowsflexibility in closing the feedback loop. The EA+ is a non-inverting input, the EA- is an inverting input and theCOMP is the output of the error amplifier. The input voltage common mode range, where the parameters of erroramplifier are guaranteed, is from 0.5 V to 3.6 V. The output of the error amplifier is connected internally to thenon-inverting input of the PWM comparator. The range of the error amplifier output of 0.25 V to 4.25 V farexceeds the PWM comparator input ramp-signal range, which is from 0.8 V to 2.8 V. The soft-start signal servesas an additional non-inverting input of the error amplifier. The lower of the two non-inverting inputs of the erroramplifier is the dominant input and sets the duty cycle where the output signal of the error amplifier is comparedwith the internal ramp at the inputs of the PWM comparator.
การแปล กรุณารอสักครู่..
