SC4808A_16 Datasheet, PDF (19/31 Pages) Semtech Corporation – High Performance Dual Ended PWM Controller

SC4808A/B
POWER MANAGEMENT
Application Information (Cont.)
iL
IL
ISens e
ICS
: Sm all Inductor current perturbation
: Inductor current
Slope Compensation generation from
Buffered Oscillator Ramp
: Sensed Mosfet current
D>50%
: Sum m ation of Isense and slope com pensation, at the CS pin of the SC4808.
Note: Below wave form s are not to scale.
IL
ISense
Buffered
Oscillator
Ramp
ICS
 2005 Semtech Corp.
19
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