Infineon BTS7002-1EPP, User Manual

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2.4 Pin definitions and functions
Table 1 Pin definitions and functions
PIN Symbol I/O Function
D2 P1.4 I Push button digital (optional)
D3 IN4 O Input PROFET
™
+2 device U4
D4 LED1 O Indicator LED1
D5 LED2 O Indicator LED2
D6 DEN1+DEN3 O Diagnosis enable PROFET
™
+2 Device U1+U3
D7 OLOFF O Option for Open Load in OFF Detection
D8 DEN2+DEN4 O Diagnosis enable PROFET
™
+2 Device U2+U4
D9 IN1 O Input PROFET
™
+2 device U1
D10 IN2 O Input PROFET
™
+2 device U2
D11 IN3 O Input PROFET
™
+2 device U3
D12 LED3 O Indicator LED3
D13 LED4 O Indicator LED4
GND@2 GND - Ground
GND@1 GND - Ground
GND@0 GND - Ground
VIN VIN - Supply voltage
A0 A0 - P2.6 I Push button analog (optional)
A1 A1 - P2.8 I V
bat
A2 A2 - P2.9 I Current sense of PROFET
™
+2 device U1+U2
A3 A3 - P2.10 I Current sense of PROFET
™
+2 device U3+U4
2.5 Additional information
The following chapters give the user in-depth information about the board's special features.
2.5.1 Open Load in OFF Detection (OLOFF)
For some loads, it may be necessary to check their availability without powering them up. For example, it may
be necessary to check if bulbs or LEDS (or the cable they are connected to) are intact or broken, without
creating a flash light by switching them on.
In the example circuitry in
Figure 7 below, a small current (few milliamperes) is injected into the output,
powerful enough to pull up the output if there is no load connected, but not powerful enough to activate the
load in a distrubing manner. If the output voltage of a PROFET
™
+2 12V becomes too high, drain-source voltage
will be lower than V
DS(OLOFF)
, and the PROFET
™
will provide an open load signal I
IS(OLOFF)
, if DEN = "high" while IN
= "low".
To avoid continuous power losses in OFF state in open load condition, and to be able to distinguish open load
from short-to-battery in OFF state, the pull-up circuitry must be deactivated.
PROFET
™
+2 12V Arduino Shield
2 Board description
User Manual 11 Rev. 1.00
2019-10-23