OB2222MCPA IC

The OB2222MCPA is engineered to simplify power supply design by minimizing external component counts. It combines a high-voltage power bipolar transistor (BJT) with a current mode PWM controller in a compact SOP-8 package. Its internal architecture is optimized for excellent overshoot and dynamic response through a precise inner resistor divider and reference. To maximize efficiency, the IC implements frequency reduction and burst mode control at light loads, ensuring low standby power consumption. It is frequently used in small home appliances, auxiliary power supplies, and consumer electronic adapters.

Features:

• High Integration:ÊFeatures a built-in high-voltage power BJT and startup circuit, reducing bill-of-materials (BOM) cost.
• Precise Regulation:ÊGuaranteed 5.0V output voltage regulation across universal AC input ranges.
• High Efficiency:ÊUtilizes frequency-reduction and burst-mode control for superior light-load performance.
• EMI Optimization:ÊIncludes On-BrightÕs proprietary frequency shuffling technique and a soft base driver design to improve EMI performance.
• Advanced Protection:ÊComprehensive safety features including cycle-by-cycle current limiting, output short-circuit protection, FB pin open-loop protection, on-chip over-temperature protection (OTP), and VDD over-voltage/under-voltage lockout (OVP/UVLO).
• Acoustic Noise Elimination:ÊMinimizes energy below 20kHz to prevent audible noise during operation.

Package Includes:

• 1 x OB2222MCPA PWM Power Switch IC (SOP-8 SMD).