OB2268C
Description
OB2268C is a highly integrated current mode PWM control IC optimized for high performance, low standby power and cost effective offline flyback converter applications. PWM switching frequency at normal operation is externally programmable and trimmed to tight range.
Key Features
- Excellent EMI performance is achieved with soft e switching control at the totem pole gate drive output. Confid TYPICAL APPLICATION On-Bright The tone energy at below 20KHZ is minimized in operation. Consequently, audio noise performance is greatly improved. OB2268C is offered in both SOP-8 and DIP-8 packages. FEATURES
- Extended Burst Mode Control For Improved ) 电 化 Efficiency and Minimum Standby Power Design
- Audio Noise Free Operation 纳
- External Programmable PWM Switching Frequency
- Internal Synchronized Slope Compensation
- Low VIN/VDD Startup Current(6.5uA) and Low (贝 Operating Current (2.3mA)
- Leading Edge Blanking on Current Sense Input
- Complete Protection Coverage With Auto Self- e Recovery d o External Programmable Over Temperature Fi Protection (OTP) o o o With or Without Built in VDD OVP for System OVP a Under Voltage Lockout with Hysteresis n (UVLO) BoGate Output Maximum Voltage Clamp (18V) o Line Compensated Cycle-by-Cycle Overcurrent Threshold Setting For Constant Output to Current Limiting Over Universal Input Voltage Range (OCP) o Over Load Protection. (OLP)
