LV5065VB

PS No.A2003-8/9

Shoot through protection

At the same time on prevention dead time1 (Tdead1): LDRV OFF → HDRV ON

• HDRV is turned on after typ_50ns after LDRV became 2V in the LDRV off → HDRV on.

At the same time on prevention dead time2 (Tdead2): HDRV OFF → LDRV ON

• LDRV is turned on after typ_50ns after SW became 2V in the HDRV off → LDRV on.

LDRV compulsion ON delay time

• Even if SW does not reach 2V when HDRV reaches MAX_duty, LDRV is performed ON of forcibly after about

50ns. This price changes by Ciss of the external MOSFET.

LDRV

HDRV

SW

At the same time

on prevention

dead time 1

Typ_50ns

LDRV

HDRV

SW

Vth_2V

At the same time

on prevention

dead time 2

Typ_50ns

LDRV

HDRV

SW

HDRV-SW

(Hi-side_mosfet_Vgs)

LDRV compulsion ON timing

MAX_duty time

dead time

Typ_50ns