TS19701A

CC/CV Primary-Side PWM Controller

7/9

Version: A12

Function Description (Continue)

Protection Control

Good power supply system reliability is achieved with its rich protection features including Cycle-by-Cycle current

limiting (OCP), VDD clamp, Power on Soft Start, and Under Voltage Lockout on VDD (UVLO).

VDD is supplied by transformer auxiliary winding output. The output of TS19701A is shut down when VDD drops

below UVLO (ON) limit and Switcher enters power on start-up sequence thereafter.