The limits of the pull-up current reflect the maximum allowed load current, which does not activate the load.
That depends strongly on the load, and has to be adapted accordingly. As leakage currents battery-to-output
(for example, output leakage current IL(OFF)) and output-to-GND may occur in a system, resistors for pull-up
and pull-down may be needed.
For more information see our product datasheet of the PROFET
™
+2 BTS700x-1EPP and carefully read the
Application Notes "PROFET
™
+ 12V 'What the designer should know'" and "PROFET
™
+ current sense 'What the
designer should know'".
2.5.2
Diagnosis and Sense (DEN and IS)
The Diagnosis Enable (DENx) and the current sense (ISx) are conntected in a way, that you can only use 2
different BTS700x-1EPP at a time (U1+U3 or U2+U4).
For example, in order to use the U1 and the U3 devices, the user has to put the diagnosis enable signal DEN1 +
DEN3 high and ensure that DEN2 + DEN4 are at a low level. The user has also to check that the value at the
current sense pins is correct.
The current sense outputs of the devices U1 and U2 are connected by sharing one ADC input of the
microcontroller (analog input A2). The same applies to the devices U3 and U4 which are connected to the
analog input A3.
PROFET
™
+2 12V Arduino Shield
2 Board description
User Manual
13
Rev. 1.00
2019-10-23
