BTN7970 Datasheet, PDF (12/28 Pages) Infineon Technologies AG – High Current PN Half Bridge NovalithIC

5.2.2 Switching Times
High Current PN Half Bridge
BTN7970
Block Description and Characteristics
IN
V_{OU T}
90%
t _dr(HS) t _r(HS)
ΔV_OUT
t
t _{df (HS )} t_{f (HS )}
90%
ΔV_{OU T}
10%
10%
t
Figure 7 Definition of switching times high side (R_load to GND)
IN
V_{OU T}
90%
t_{df (LS )} t _{f (LS )}
ΔV _{OU T}
t
t_{dr(LS )} ^t_{r(LS )}
90%
ΔV_{OU T}
10%
10%
t
Figure 8 Definition of switching times low side (R_load to VS)
Due to the timing differences for the rising and the falling edge there will be a slight difference between the length
of the input pulse and the length of the output pulse. It can be calculated using the following formulas:
• Δt_HS = (t_dr(HS) + 0.5 t_r(HS)) - (t_df(HS) + 0.5 t_f(HS))
• Δt_LS = (t_df(LS) + 0.5 t_f(LS)) - (t_dr(LS) + 0.5 t_r(LS)).
Data Sheet
12
Rev. 1.1, 2007-11-21