UC3843A 3843 Current Mode PWM Controller SOP-8

Product details of UC3843A 3843 Current Mode PWM Controller SOP-8
UC3843A 3843 Current Mode PWM Controller SOP-8 is a current Mode PWM Controller, meaning it can be used to provide a constant current by varying the output voltage to the load. While building Switch mode supplies with feedback there are two modes of control that is commonly used, one is voltage mode control where the output voltage will kept constant irrespective of the current (CV mode) and the other is current mode control where the output current will be constant (C mode) irrespective of the voltage.

Specification of UC3843A 3843 Current Mode PWM Controller SOP-8
Current-Mode: PWM controller
Operating Voltage: 7.0V to 8.2V
Output pin current: 1A
Analog input range: -0.3 to 6.3V
Oscillation Frequency: 52 Typically
Gain: 3V
Maximum source current: 22mA
Low Output Voltage: 0.08V
High Output Voltage: 13.5V