C2162PX2

C2161PX2 and C2162PX2 Datasheet Primary Sensing SMPS Controller For Offline Applications ADVANTAGES  Low cost bipolar primary switch  Tight tolerance CV/CC operation  Low component count  High efficiency (Energy Star 2.0 compliance with margin)  < 30 mW no-load power consumption (Five star rating)  Programmable maximum switching frequency  Programmable output cable compensation up to 10% C2161PX2 C2162PX2 SOT23-6 FEATURES  Advanced primary sensing controller achieves true CV/CC output characteristic without opto-coupler  Full featured protection for over-temperature, input over-voltage, input under-voltage, output short-circuit  Advanced PFM/PWM control and quasi-resonant switching for increased efficiency  Switching timing jitter spreads RF spectral emissions, eases EMC compliance  SOT23-6 package APPLICATIONS Universal input mobile phone and USB chargers. Universal standby and auxiliary power supplies up to 8 W using C2162PX2 (up to 4 W using C2161PX2). [email protected] 2009 Figure 1: Typical Application Circuit Preliminary © Cambridge Semiconductor Ltd 2009 Page 1 DS-2918-0906 12-Jun-2009 C2161PX2 and C2162PX2 Datasheet Primary Sensing SMPS Controller For Offline Applications BLOCK DIAGRAM VDD Startup Comparator Voltage Sensing Voltage Regulator Digital & Analogue Control Oscillator Current Sensing FB Emitter Driver ED [email protected] 2009 GND RC CS ...