OB221X series are offline PWM power switch ICs. They are designed for primary side regulation with minimum overall system cost by removing X/Y caps, Photo-coupler and TL431. They include an internal error amplifier to delivery high performance CC/CV control. OB2211/OB2212 is highly recommended for cost effective compact designs in low power adapter and battery charger applications.
¡ô Lowest possible component count.
¡ô Multiple mode operation with charge, discharge, path-through and sleep mode.
¡ô Very low sleep mode power consumption.
¡ô Efficiency measured >90% at buck charge and boost discharge mode.
¡ô Comprehensive protection including Battery OVP/UVP/OTP/OCP, Output OVP/SCP, Input OVP etc.