BTS542E2 Siemens Semiconductor Group, BTS542E2 Datasheet - Page 10

• Manufacturer Part Number: BTS542E2
• Description: Smart Highside Power Switch (Overload protection Current limitation Short-circuit protection Thermal shutdown)
• Manufacturer: Siemens Semiconductor Group

Timing diagrams
Figure 1a: V
Figure 2a: Switching a lamp,
Semiconductor Group
in case of too early V IN =high the device may not turn on (curve A)
t
d(bb IN)
AAA
AAA
AAA A A AAAA
AAA
IN
V
AAAA
A A AAA
AAAA AA AA
IN
ST
V
V
ST open drain
I
bb
L
OUT
OUT
approx. 150
AA
AA
AAA A AAAAAAAAAAAAAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AA
AAA
AA
AAA
AA
AAA
AA AA
AAA
AAA
AA AA
AAA
AAA
AA AA
AAA
AAA
AAAA AAAA
AAAA
bb
AAAA AAAA
turn on:
t d(bb IN)
A
AAAA AAA
m
A
s
AAA A A AAAA
AA AA
AA
AA
AA AA
AA
AA
AA AA
AAAA
AA
AAAA
AAAA AAA
AAA
AAA
AAA AAAA
AAAA
AAAA
AAAA AAA
AAA
AAA
AAA AAAA
AA AA AAAAAAAAA A A AAAAAA A A AAAAAA
AA
AA
AA AA
AA
AA
AA AA
AA
AAAA AAAA
AAAA A A A A AAAA
AAAA AAA
AAA A A AAAA
AAAA AAA
AAA
Page 10
t
t
Figure 2b: Switching an inductive load
*) if the time constant of load is too large, open-load-status may occur
Figure 3a: Turn on into short circuit,
t d(SC) approx. 200
ST
IN
ST
IN
V
V
I
I
OUT
L
L
OUT
I
L(OL)
AA
AA
AA
AA AA
AA
AA A A AA
AA
*)
AA
AA
AA
AA
t
t d(SC)
d(ST)
m
s if V
bb
- V
OUT
> 8.3 V typ.
8.Jan.96
t
t