BTM 7745G Infineon Technologies, BTM 7745G Datasheet - Page 15

• Manufacturer Part Number: BTM 7745G
• Manufacturer: Infineon Technologies

Specifications of BTM 7745G

• Packages: PG-DSO-36
• Operating Range: 5.5 - 28.0 V
• Rds (on) (typ): 250.0 mOhm
• Id(lim): 12.0 A
• Iq (typ): 5.0 µA
• Diagnosis: OV-, OC-, OT-failure flag

Figure 11
Figure 12
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 BTM7745G 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.
Data Sheet
High Side Switch
High Side Switch
14
13
12
10
16
15
14
13
12
11
10
11
9
8
0
6
Current Limitation Level vs. Current Slew Rate d
Typical Current Limitation Detection Levels vs. Supply Voltage
10
I
CLH0
50
14
18
dI
100
L
/dt [A/ms]
22
T
T
T
T
T
j
j
T
j
V
j
= 150°C
= 150°C
= -40°C
j
j
= -40°C
= 25°C
= 25°C
S
[V]
26
150
15
Low Side Switch
Low Side Switch
14
13
12
10
16
15
14
13
12
11
10
11
I
9
8
L
/dt
0
6
Block Description and Characteristics
10
I
CLL0
50
14
High Current H-Bridge
18
dI
100
L
Rev. 1.0, 2010-05-28
/dt [A/ms]
22
T
T
T
T
T
j
j
T
= 150°C
j
= -40°C
j
j
= 150°C
V
= 25°C
j
= -40°C
BTM7745G
= 25°C
S
26
[V]
150