MX1210P

MX1210P is a highly integrated current-mode PWM controller optimized for high-performance, low standby power, and wide output voltage range PD adapter solutions. The device is also compatible with cost-effective offline flyback converter applications covering a wide output range. At full load, the IC operates in fixed-frequency mode. As the load decreases, it operates in green mode with valley switching, achieving high power conversion efficiency across the entire load range. MX1210P provides comprehensive protection features, including cycle-by-cycle current limiting, overload protection, over-temperature protection, output short-circuit current protection, and output and VDD overvoltage protection. Excellent EMI performance is achieved through proprietary frequency dithering technology, which minimizes audio energy below 22kHz to avoid audible noise during operation. MX1210P is available in a SOT23-6 package.

Applications

• Battery charger
• PD adapter
• Wide output range adapter
• Motor adapter

Key features

• Multi-mode operation
• 65kHz fixed-frequency mode at full load
• 130kHz @ sustained 40ms at peak load
• Valley switching in green mode
• Burst mode at light load and no load
• Adaptive loop gain compensation with low OVP current sensing
• Ultra-low operating current at light load and no load
• Internal OCP compensation for universal line voltage
• Extended burst mode control for improved efficiency and reduced standby power
• Power-on soft-start to reduce MOSFET VDS stress
• Frequency dithering for improved EMI
• Audio-noise-free operation
• Comprehensive protection coverage
• VDD UVLO with hysteresis
• Cycle-by-cycle OCP with auto-recovery
• External OTP
• VDD OVP
• Output OVP
• Output short-circuit current protection with auto-recovery
• UVP with auto-recovery
• Output diode short-circuit protection with auto-recovery