bts734l1 ETC-unknow, bts734l1 Datasheet - Page 13

• Manufacturer Part Number: bts734l1
• Description: Smart Channel Highside Power Switch Overload Protection Current Limitation Short-circuit Protection Thermal Shutdown
• Manufacturer: ETC-unknow

Figure 3a: Turn on into short circuit:
shut down by overtemperature, restart by cooling
Heating up of the chip may require several milliseconds, depending
on external conditions (t off(SC) vs. T j,start see page 11)
Figure 3b: Turn on into short circuit:
shut down by overtemperature, restart by cooling
(two parallel switched channels 1 and 2)
Semiconductor Group
ST1 and ST2 have to be configured as a 'Wired OR' function
ST1/2 with a single pull-up resistor.
ST1/2
IN1
I
ST
IN1/2
I
L1
L1
+ I
t off(SC)
t
I
L2
I L(SCp)
off(SC)
L(SCp)
other channel: normal operation
I
L(SCr)
I
L(SCr)
t
t
13
Figure 4a: Overtemperature:
Reset if T
Figure 5a: Open load: detection in ON-state, turn
on/off to open load
The status delay t d(ST OL4) is for differentiation between the failure
modes "open load in ON-state" and "overtemperature"; t d(ST OL4)
only appears after turn off to open load.
IN
ST
V
IN
ST
V
T
I
OUT
L
J
OUT
j
< T
jt
t
d(ST)
open
BTS 734 L1
t
d(ST OL4)
t
t