TLE7241E Datasheet, PDF (8/71 Pages) Infineon Technologies AG – Dual Channel Constant Current Control Solenoid Driver

TLE 7241E
Pin Configuration
Pin Definitions and Functions (cont’d)
Pin
Pin Name
Pin Description
8
SCK
SPI Clock; Digital input pin. 3.3V and 5.0V logic
compatible
9
CSB
Chip Select Bar; Active low digital input pin. 3.3V and
5.0V logic compatible
10
SI
Serial Data Input; 3.3V and 5.0V logic compatible
11
V_SO
SPI Supply Voltage; connect a ceramic capacitor to GND
near the device
12
SO
Serial Data Output; Supplied by Vso pin
13
TEST
Test Pin; connect to GND
14
REF
Voltage Reference; connect to external 2.5 V reference,
or connect to GND to enable internal reference.
15
GND
Ground; signal ground
16
BAT
BAT Input; connect to the solenoid supply voltage
through a series resistor. Connect a ceramic capacitor to
GND near the device
17
POS2
Positive Sense Pin Channel 2; connect to positive
terminal of external sense resistor with dedicated trace
18
NEG2
Negative Sense Pin Channel 2; connect to negative
terminal of external sense resistor with dedicated trace
19
OUT2
Output Channel 2; Drain of Output DMOS; connect to
negative terminal of external sense resistor
20
PGND2
Power Ground Channel 2; internally connected to
PGND1
Expose EPGND
d Lead
Frame
GND; Should be connected to GND, PGND1 and PGND2
and to the ground plane of the ECU
Note: If a channel is unused, the OUTx, NEGx, and POSx pins should be connected
together.
Data Sheet
8
Rev. 1.1, 2009-01-19