CM6901T6
Description
CM6901T6 is a SLS, SRC/LLC + SR resonant controller and it can operate at both SRC and LLC region with synchronous rectification to achieve high efficiency. Its unique features: FM + 2 PWMING modes.
Key Features
- FM + 2 PWMING modes
- It is used for DC-DC conversion in offline application
- Light load regulation is acplished by transitioning the controller from frequency modulation mode into PWM mode
- We call this is Light load PWMING function
- When ac turn off, bulk input voltage will drop
- The switching frequency is below the highest resonant point frequency fr1=1/ 2π LrCr ;Lr: resonant choke; Cr: resonant cap
- SR Ideal Diode PWMING for synchronous drivers is acplished by paring the voltage signal at the RSET pin to RTCT ramp
- The pulse-width reduction will happen when switching frequency below the highest resonant point frequency fr1
- The CM6901T6 have FM + 2 PWMING modes to have the optimal balance performance between hold-up time an
