ICC80QSGXUMA1

ICC80QSG flyback controller is tailored for battery charger application to meet the required performance. This is a voltage mode controller for flyback topologies operating in quasi-resonant mode and valley switching DCM, to achieve high efficiency of power transfer across wide operating range. For battery charging application, the IC offers a wide power range as well as a comprehensive set of protections. The IC is easy to design in and requires a minimum number of external components. The gate driver current enables reasonable designs up to 130W with state-of-the-art MOSFETs. The system performance and efficiency can be optimized using Infineon CoolMOS™ P7 power MOSFETs. Integrated burst mode function allows designs with a very low standby power consumption during standby mode and very light loads. Potential applications are tailored for battery charger application up to 130W, also suited for adapter, printer, PC, TV, monitor, set-top box, audio amplifier applications up to 130W.

• Secondary side regulation (SSR), for battery charging current control, VCC overvoltage protection
• High efficiency and low electromagnetic interference (EMI) with quasi-resonant valley switching
• Quasi-resonant mode (QRM) operation with continuous conduction mode (CCM)
• Prevention and valley switching discontinuous conduction mode (DCM) in mid to light load
• Burst mode for very light loads and low system standby power consumption
• Reduced gate driver output voltage during burst mode for lower standby power
• Adjustable on-time mapping at valley changing position for desired max operating switching frequency
• Internal overtemperature protection (OTP), flyback output overvoltage protection (OVP)
• Primary side over-current protection (OCP), brownin, brownout protection
• Supports on/off control with external pull-down signal, external start-up circuit control signal