Datasheet

dI
L
/dt
I
CLH
[A]
[A/ms]
10
11
12
13
14
050100150
I
CLH0
T
j
= 25°C
T
j
= 150°C
T
j
= -40°C
High Side Switch
dI
L
/dt
I
CLL
[A]
[A/ms]
10
11
12
13
14
050100150
I
CLL0
T
j
= 25°C
T
j
= 150°C
T
j
= -40°C
Low Side Switch
Data Sheet 15 Rev. 2.0, 2010-05-28
High Current H-Bridge
BTM7752G
Block Description and Characteristics
Figure 11 Current Limitation Level vs. Current Slew Rate dI
L
/dt
8
9
10
11
12
13
14
15
16
6 1014182226
I
CLH
[A]
T
j
= 150°C
T
j
= -40°C
High Side Switch
T
j
= 25°C
V
S
[V]
8
9
10
11
12
13
14
15
16
6 1014182226
V
S
[V]
T
j
= 150°C
T
j
= 25°C
T
j
= -40°C
Low Side Switch
I
CLL
[A]
Figure 12 Typical Current Limitation Detection Levels vs. Supply Voltage
In combination with a typical inductive load, such as a motor, this results in a switched mode current limitation.
This method of limiting the current has the advantage that the power dissipation in the BTM7752G is much smaller
than by driving the MOSFETs in linear mode. Therefore it is possible to use the current limitation for a short time
without exceeding the maximum allowed junction temperature (e.g. for limiting the inrush current during motor start
up). However, the regular use of the current limitation is allowed as long as the specified maximum junction
temperature is not exceeded. Exceeding this temperature can reduce the lifetime of the device.