Figure 4a: Overtemperature:
Reset if Tj <Tjt
IN
ST
V
OUT
Figure 6a: Undervoltage:
BTS 612 N1
IN
V bb
V
bb(under)
Vbb(u cp)
Vbb(u rst)
V OUT
T
J
t
Figure 5a: Open load: detection in OFF-state, turn
on/off to open load
IN1
IN2 channel 2: normal operation
ST open drain
t
Figure 6b: Undervoltage restart of charge pump
Von
VON(CL)
VOUT1
IL1
channel 1: open load
t
d(ST OL3)
t d(ST OL3)
ST
t
td(ST,OL3) depends on external circuitry because of high
impedance
*) IL = 30 µA typ
V
bb(over)
V
bb(u rst)
V
bb(o rst)
V bb(under)
V
bb(u cp)
charge pump starts at Vbb(ucp) =5.6 V typ.
V bb
Semiconductor Group
12