型号:UPSL102
品牌:UTC
最小包装:
封装:SOT-25
数量:
产 品 说 明 | ||||||||
DESCRIPTION The UTC UPSL102 is a high performance offline PSR controller for LED lighting, which can achieve accurate LED current and low system cost for an isolated lighting application in a single stage converter. Consequently, opto-coupler and TL431 could be eliminated. Constant Current (CC) control is intergrated as shown in the figure below. In CC control, the current can be adjusted externally by the sense resistor R S at CS pin. The chip consumes low start up current and very low operation current (typical 350μA), it can achieve high efficiency and low standby power consumption. The UTC UPSL102 offers comprehensive protection coverage with auto-recovery features including open loop protection, short circuit protection, cycle-by-cycle current limiting, V DD over voltage protection, built-in leading edge blanking, V DD under voltage lockout (UVLO), etc. FEATURES * Primary-side sensing and regulation without TL431 and opto-coupler * High precision constant current regulation at universal AC input * Low system cost and high efficiency * Built-in primary winding inductance compensation * Programmable CC regulation * Drivability for BJT switch * Short circuit protection * Ultra low start-up current (Typ. 1μA) * Open loop protection * Built-in leading edge blanking (LEB) * Cycle-by-cycle current limiting * V DD under voltage lockout with hysteresis * V DD over voltage protection 规格书UPSL102 |
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