MX1210SC

MX1210SC is a highly integrated current-mode PWM controller optimized for high-performance, low standby power, and wide output voltage range charger and adapter solutions. The device is also suitable for 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. MX1210SC provides comprehensive protection, including cycle-by-cycle current limiting (OCP), overload protection (OLP), over-temperature protection (OTP), output short-circuit protection (SCP), and output and VDD overvoltage protection (OVP and VDD OVP). Excellent EMI performance is achieved through MAXIN's proprietary frequency shuffling technology. Tonal energy below 22kHz is minimized to avoid audio noise during operation. MX1210SC is available in a SOT23-6 package.

Applications

• Battery charger
• PD adapter
• Wide output range adapter
• Set-top box power supply

Key features

• Multi-mode operation
• Fixed 100kHz frequency mode at full load
• Valley switching operation in green mode
• Burst mode at light load and no load
• Adaptive loop gain compensation with Iovp 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 shuffling for EMI
• Audio-noise-free operation
• Comprehensive protection coverage
• VDD UVLO with hysteresis
• Cycle-by-cycle OCP with auto-recovery
• External over-temperature protection (EXT_OTP)
• VDD overvoltage protection
• Output overvoltage protection
• Output SCP with auto-recovery
• Undervoltage protection with auto-recovery
• Output diode short-circuit protection with auto-recovery