Low-side and high-side Smart Drivers
Here is a set of various smart drivers. All are protected against short-circuits, overtemp and have a freewheel diod included. Some of them have diagnosis. These smart power switches are driven by a logic command.
The advantages are that they includes all protections, some have diagnosis functions and there is many parts in a huge range of current.
Note that I'm a little overcautious with the dual or quad packages. The problem is that when a channel is in overtemperature limitation and the driver isn't disabled by software, the others parts in the module may also be in shutdown. It may be a problem according to Failure Mode Effects Analysis (FMEA). Do no forget to take it into account when designing.
Click on the reference to download the datasheet.
|
Type
|
Low-side
|
Low-side
|
Low-side
|
High-side
|
High-side
|
High-side
|
High-side
|
High-side
|
|
Number of channels
|
1
|
1
|
1
|
1
|
1
|
2
|
4
|
4
|
|
Reference
|
BUK127 (67Kb)
|
BTS117 (139Kb)
|
BTS917 (182Kb)
|
BTS443 (101Kb)
|
BSP452 (83Kb)
|
BTS5210 (177Kb)
|
BTS840 (355Kb)
|
BTS716 (253Kb)
|
|
Vds max. (V)
|
50
|
60
|
60
|
42
|
40
|
41
|
34
|
41
|
|
Inom. (A)
|
0.7
|
3.5
|
3.5
|
23
|
0.7
|
2.5
|
12
|
2.5
|
|
Imax. (A)
|
-
|
7
|
up to 30
|
55
|
-
|
8
|
24
|
8
|
|
freewheel diod
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
Overtemp. protection
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
Short-circuits protection
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
Overvoltage protection
|
No
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
Diagnosis
|
No
|
No
|
Analog sense
|
Analog sense
|
No
|
Digital output
|
Analog sense + digital output
|
Digital output
|
BUK127 and BSP452 may be used as general purpose output driver. They're especially cost-effective.
You can refer to the Infineon Smart Drivers page for more parts.