Datasheet

BTS711L1
Semiconductor Group 12 2003-Oct-01
Figure 1a: V
bb
turn on:
IN2
V
OUT1
t
V
bb
ST open drain
IN1
V
OUT2
Figure 2a: Switching a lamp:
IN
ST
OUT
L
t
V
I
The initial peak current should be limited by the lamp and not by
the initial short circuit current I
L(SCp)
= 7.5 A typ. of the device.
Figure 2b: Switching an inductive load
IN
ST
L
t
V
I
*)
OUT
t
d(ST)
I
L(OL)
*) if the time constant of load is too large, open-load-status may
occur
Figure 3a: Turn on into short circuit:
shut down by overtemperature, restart by cooling
other channel: normal operation
t
I
ST
IN1
L1
L(SCr)
I
I
L(SCp)
t
off(SC)
Heating up of the chip may require several milliseconds, depending
on external conditions (t
off(SC)
vs. T
j,start
see page 11)
Timing diagrams
Timing diagrams are shown for chip 1 (channel 1/2). For chip 2 (channel 3/4) the diagrams
are valid too. The channels 1 and 2, respectively 3 and 4, are symmetric and consequently
the diagrams are valid for each channel as well as for permuted channels