MX1210S

MX1210S is a highly integrated current mode PWM controller, optimized for high performance, low standby power consumption and wide output voltage range PD adapter solutions. The circuit is as well compatible with cost effective offline flyback converter applications covering a wide output range. At full loading, the IC operates in fixed frequency mode. When the loading goes low, it operates in Green mode for high power conversion efficiency can be achieved in the whole loading range. MX1210S offers complete protection coverage including cycle-by-cycle current limiting (OCP), over load protection (OLP), over temperature protection (OTP), VDD over voltage protection (VDD OVP). Excellent EMI performance is achieved with MAXIN proprietary frequency shuffling technique. The tone energy at below 22kHz is minimized to avoid audio noise during operation. MX1210S is offered in SOT23-6 package.

Applications

• Battery chargers
• PD adapters
• Wide output range adapters
• Set-Top Box power supply

Key features

• Multi-Mode Operation
• 65kHz fixed frequency mode @ Full Load
• Middle load and light load @ Green mode
• Burst Mode @ Light Load and No Load
• Adaptive loop gain compensation with Iovp current detection
• Ultra low operation current at light and no load
• Internal OCP compensation for universal line voltage
• Extend burst mode control for improved efficiency and low standby power
• Power on soft start reducing MOSFET VDS stress
• Built in leading edge blanking function
• Frequency shuffling for EMI
• Audio noise free operation
• Comprehensive protection coverage
• VDD under voltage lockout with hysteresis (UVLO)
• Cycle-by-cycle over current protection (OCP) with auto recovery
• External over temperature protection (EXT_OTP)
• Over load protection
• VDD over voltage protection