BTS54040-LBF_15 Datasheet, PDF (12/67 Pages) Infineon Technologies AG – SPI Power Controller

3.2
Pin Definitions and Functions
BTS54040-LBF
Pin Configuration
Pin
Symbol I/O Function
Power Supply Pins
25
VS
– Positive power supply for high-side power switch
1
GND
– Ground connection
2
VDD
– Logic supply (5 V)
SPI & Diagnosis Pins
3
SO
O Serial output of SPI interface
4
SI
I Serial input of SPI interface (“high” active)
5
SCLK
I Serial clock of SPI interface (“high” active)
6
CS
I Chip select of SPI interface (“low” active); Integrated pull up to VDD
12
IS
O Current sense output signal
Limp Home Input Pin (integrated pull-down, leave unused Limp Home Input pin unconnected)
7
LHI
I Limp home activation signal (“high” active)
Parallel Input Pins (integrated pull-down, leave unused pins unconnected)
8
IN1
I Input signal of channel 1 (“high” active)
9
IN2
I Input signal of channel 2 (“high” active)
External Driver Pins (leave unused external driver pins unconnected)
10
EDD
O External driver diagnosis enable signal for external driver
11
EDO
O External driver output for activation for external driver
Power Output Pins
21, 22 ¹⁾
OUT1
O Protected high-side power output of channel 1
19, 20 ¹⁾
OUT2
O Protected high-side power output of channel 2
17, 18 ¹⁾
OUT3
O Protected high-side power output of channel 3
15, 16 ¹⁾
OUT4
O Protected high-side power output of channel 4
Not connected Pins
13, 14
n.c.*
– Not connected, internally not bonded, shorted together
23, 24
n.c.*
– Not connected, internally not bonded, shorted together
1) All outputs pins of each channel must be connected together on the PCB. All pins of an output are internally connected
together. PCB traces have to be designed to withstand the maximum current which can flow.
Data Sheet
12
Rev. 2.1, 2014-12-05