UPSL101数据手册UTC中文资料规格书

描述 Description

The UTC UPSL101 is a primary side control offline LEDlighting controller which can achieve high power factor andaccurate LED current for an isolate lighting application in a singleconverter.The UTC UPSL101 can control the LED current accuratelyfrom the primary side information. It can significantly simplify theLED lighting system design by eliminating the secondary sidefeedback components and the opto-coupler. And it integratespower factor correction function and works in transition mode forreducing the MOSFET switching losses.The LED current can be adjusted externally by the senseresistor RCS at CS pin. The UTC UPSL101 achieves highprecision current along with excellent line regulation and loadregulation.The UTC UPSL101 offers comprehensive protection coveragewith auto-recovery

特性 Features

including VCC over voltage protection,LED open/short circuit protection, over temperature protection,over current protection, leading edge blanking, VCC under voltagelockout, VCC clamp, GATE clamp, etc.  FEATURES Primary-side control with single stage PFC topology Transition mode (TM) operation to achieve high efficiency Minimized BOM count Cycle-by-cycle current limiting (OCP) Selectable threshold of OCP High current accuracy VCC over voltage protection Analog multiplier for power factor correction Over-temperature protection Output over voltage protection LED open circuit protection LED short circuit protection Soft-start Ultra-low start-up current VCC under voltage lockout (UVLO)