FEATURES
Ease of Use with Few External Components Supports Wide Input Range Average Current Control External Current and Voltage Loop Compensation for Greater User Flexibility Trimmed internal fixed Switching Frequency (65kHz+7.7% at 25oC) Direct sensing, Input Brown-Out Detection with Hysteresis Short Startup(SoftStart) duration Max Duty Cycle of 97% (typ) Trimmed Internal Reference Voltage (5V+2%) VCC Under-Voltage Lockout Cycle by Cycle Peak Current Limiting Over-Voltage Protection Open Loop Detection Soft Overcurrent Protection Enhanced Dynamic Response Fulfills Class D Requirements of IEC 1000-3-2 DESCRIPTION
The IC operates in the CCM with average current control, and in DCM only under light load condition. The switching frequency is trimmed and fixed internally at 65kHz. Both current and voltage loop compensations are done externally to allow full user control. There are various protection features incorporated to ensure safe system operation conditions. The internal reference is trimmed (5V+2%) to ensure precise protection and output control level.
Infineon Technologies
