LA5663V Datasheet, PDF (10/15 Pages) Sanyo Semicon Device – Monolithic Linear IC Phase Control Voltage Inverter Control IC

LA5663V
(3) RECT_C pin
COMP1 rectifies the CCFL current waveform, plus bias VBE, from the IFB pin. ANDing this waveform voltage with
that from point A (this latter has the same phase as NGATE2) averages the two, producing phase difference voltage
output from the RECT_C pin.
(4) V_PHASE and FLOOP_C pins
COMP2 controls the VCO frequency so that the RECT_C and V_PHASE pins have the same voltage. The RECT_C
pin voltage represents a phase difference voltage, so changing the V_PHASE pin voltage adjusts the phase difference.
* The above graph is based on measurements for the IC in isolation. Actual phase difference adjustment requires
connection to the piezoelectric transformer.
No.A0003-10/15