MV1012SC

22

(a) Noise fades within

LEB period

(b) Noise does not fade

within LEB period

Figure 17 Example of false detection due to switching-on noise

exceeds 0 V, as shown in Figure 18.

The amplitude of Vcs during the toff2 period can be reduced by reducing the Coss of MOSFET and the Cr of the

Figure 18 Changes in on-time determined by switching-on

timing in the [B] region

Figure 19 Example illustrating degraded smoothness of

dimming characteristics

LEB period

LEB period

Vb

Gate

Vcc

×1/5

Io

CAT.No.1A0602-1E