Datasheet Summary
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RS2111/RS2112
Primary-Side Regulation PWM Power Switch
Description
RS2111/RS2112 is an offline PWM Power switch for low power AC/DC charger and adaptor applications. It operates in primary-side sensing and regulation. Consequently, opto-coupler and TL431 could be eliminated from design. Proprietary Constant Voltage (CV) and Constant Current (CC) control is integrated as shown in the figure below.
V0
8-Lead Plastic DIP-8 Package Code: P
- 8-Lead Plastic SOP-8 Package Code: S
I0
Fig1. Typical CC/CV Curve In CC control, the current and output power setting can be adjusted externally by the sense resistor Rs at CS pin. In CV control, multi-mode operations are utilized to...
