R7735 Datasheet | Richtek

Description R7735 series is the successor of R7732/3 and fully patible with most of SOT-23-6 / DIP-8 product so far in the market. It has enhanced mode PWM controller and owns excellent green power performance, especially under light load and no load conditions. It focuses on "easy to design" in different applications and it will save both design effort and external ponents. Besides the general features shown in the Features section, R7735 covers wide protection options, such as internal Over Load Protection (OLP) and Over Voltage Protection (OVP) to eliminate the external protection circuits. Moreover, it also features Secondary Rectifier Short Protection (SRSP) and CS pin open protection. This protection will make the PSU design for reliability and safety easier. R7735 is designed for power supply such as NB adaptor which is a very cost effective and pact design. The precise external OVP and Over Temperature Protection (OTP) can be implemented by very simple circuit. The start-up resistors can also be replaced by bleeding resistors to save power loss and ponent count. Ordering Information R7735 (B)- (- : See Version Table) Package Type E : SOT-23-6 N : DIP-8 (R7735G Only) Lead Plating System G : Green (Halogen Free and Pb Free) R7735 Version (Refer to Version Table) Note : Richtek products are :  Ro HS pliant and patible with the current requirements of IPC/JEDEC J-STD-020.  Suitable for use in Sn Pb or Pb-free soldering processes. Features - No Load Input Power Under 100m W - Accurate Over Load Protection - UVLO 9V/14V - Current Mode Control - Slope pensation - Internal Leading Edge Blanking - Excellent Green Power Performance - Cycle-by-Cycle Current Limit - Internal Over Voltage Protection - Secondary Rectifier Short Protection - Opto-Coupler Short Protection - Feedback Open-Loop Protection - CS Pin Open Protection - Jittering Frequency - PRO Pin for External Arbitrary OVP/OTP - Soft Driving for EMI Noise - High Noise Immunity - Ro HS pliant and Halogen...