OB2269AP Current Mode PWM Controller IC - DIP-8 Package
OB2269AP Current Mode PWM Controller IC - DIP-8 Package is a highly integrated current-mode PWM controller designed for offline AC/DC flyback power supplies. It provides programmable switching frequency, burst-mode operation for improved light-load efficiency, internal slope compensation, leading-edge current-sense blanking, and comprehensive protection functions. The IC is suitable for SMPS applications such as power adapters, battery chargers, set-top boxes, televisions, and other compact AC/DC power supplies. Features: Current-mode PWM control. Designed for offline AC/DC flyback converters. Externally programmable PWM switching frequency. Extended burst-mode operation for reduced standby power. Low startup current. Internal synchronized slope compensation. Leading-edge blanking on the current-sense input. Cycle-by-cycle over-current protection. Overload and over-temperature protection. VDD over-voltage protection and under-voltage lockout. Gate-drive output voltage clamped to protect the external MOSFET. Frequency-shuffling technology for improved EMI performance. DIP-8 through-hole package. Specifications: Parameter Value Product Type Current-Mode PWM Controller IC Model OB2269AP Manufacturer On-Bright Electronics / Lite-On Controller Type Current-Mode PWM Application Offline AC/DC Flyback Converter Package DIP-8 Maximum VDD Voltage 36 V Maximum VIN Voltage 36 V Startup Current 4 µA Typ. Operating Current 2.3 mA Typ. Gate Output Clamp Voltage 18 V Max. Protection OCP, OLP, OTP, OVP, UVLO Frequency Control External Resistor Mounting Type Through Hole Pin Configuration: Pin No. Pin Name Description 1 GND Ground 2 FB Feedback Input; Controls PWM Duty Cycle 3 VIN Startup and Line-Voltage Sensing Input 4 RI Oscillator Frequency Setting Input 5 RT Temperature Sensing Input 6 SENSE Current-Sense Input 7 VDD DC Power Supply Input 8 GATE Totem-Pole Gate Drive Output Also Check These Out: AN7112 Audio Power Amplifier IC TDA2822M Amplifier IC HT12D (RF Decoder) IC Package Includes: 1 × OB2269AP Current Mode PWM Controller IC - DIP-8 Package