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TB9051FTG
(1) PWM function (in the case of Forward) (EN: H, ENB: L)
* The mark of a circle shows DMOS Tr which is ON.
Figure 7.1-1 Current flow at the time of PWM function (Forward)
Note: Some of the functional blocks and circuits in the block diagram may be omitted or simplified for
explanatory purposes.
PWM function (Forward) timing chart (in the case of short brake operation, PWM1 = PWM2 = L)
●
*D.T (Dead Time): In order to prevent the through current by simultaneous ON of Hi-side Pch Tr and
Lo-side Nch Tr, Pch Tr off and Nch Tr off time (4 μs (typ.)) are prepared.
Figure 7.1-2 (1) Timing chart at the time of PWM function (Forward)
Note: Some of timing charts in this document may be omitted or simplified for explanatory purposes.
Ver.1.1 2019-03-14
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