Figure 5a: Open load, : detection in OFF-state, turn
on/off to open load
Figure 6a: Undervoltage:
BTS307
IN
IN
ST
V
OUT
td(ST OL3)
V bb
V OUT
V
bb(under)
Vbb(u cp)
Vbb(u rst)
I
L
open
normal
*) t
td(ST,OL3) depends on external circuitry because of high
impedance
*) IL = 6 A typ
Figure 5b: Open load, : detection in OFF-state, open
load occurs in off-state
IN
ST open drain
t
Figure 6b: Undervoltage restart of charge pump
Von
ST
V
OUT
VOUT(OL)
V
bb(u
rst)
V
bb(u cp)
V
bb(under)
I
L normal
open
normal
Vbb
*)
*)
t
charge pump starts at Vbb(ucp) =5.6 V typ.
*) IL = 6 A typ
Data Sheet
10
2013-10-10