
Princeton Technology
DESCRIPTION
The RS2322 integrates active power factor correction and works in quasi resonance mode in order to reduce the MOSFET switching losses. The multi-protection features of RS2322 greatly enhance the system reliability and safety. The RS2322 features over voltage protection, short circuit protection, cycle-by-cycle current limit, VDD UVLO and auto-restart over-temperature protection. The driver output voltage is clamped at maximal 19V to protect the external power MOSFET.
FEATURES
• High efficiency (Reach 90%)
• Active Power Factor Correction (>0.9)
• High precision output current regulation (-3%~+3%)
when universal AC input voltage (85VAC~265VAC)
• Lowest cost and very less component count solution
• Non-Isolated Buck-Boost application
• Need not transformer to simplify design
• Accurate Constant Current Output
• Quasi Resonance Mode for High Efficiency
• Support no electrolytic capacitor
• Programmable output current setting
• Tight tolerances and negligible temperature
variation
• Frequency jittering dramatically reduces EMI,
minimizes EMI filter cost
• Building in current compensation
• Building in 450nS LEB time for CS pin
• Audio noise free operation
• SOP-8 Pb free package
APPLICATIONS
• Cell phone charger
• Small power adaptor
• LED lamp
• Industrial controls