TLE8102SGXT Infineon Technologies, TLE8102SGXT Datasheet - Page 11

• Manufacturer Part Number: TLE8102SGXT
• Manufacturer: Infineon Technologies

Specifications of TLE8102SGXT

• Switch Type: Low Side
• Power Switch Family: TLE8102SG
• Power Switch On Resistance: 180mOhm
• Output Current: 5A
• Number Of Outputs: Dual
• Mounting: Surface Mount
• Supply Current: 5mA
• Package Type: DSO
• Operating Temperature (min): -40C
• Operating Temperature (max): 150C
• Operating Temperature Classification: Automotive
• Pin Count: 12
• Lead Free Status / Rohs Status: Compliant

Maximum Load Inductance
During demagnetization of inductive loads, energy has to be dissipated in the TLE8102SG. This energy can be
calculated with following equation:
The equation simplifies under the assumption of R
The energy, which is converted into heat, is limited by the thermal design of the component.
5.3.3
The TLE8102SG provides embedded protective functions. Integrated protection functions are designed to prevent
IC destruction under fault conditions described in this data sheet. Fault conditions are considered “outside” the
normal operating range. Protection functions are not designed for continuous repetitive operation.
Over load and over temperature protections are implemented in the TLE8102SG.
the protective functions.
Figure 8
5.3.3.1
The TLE8102SG is protected in case of over load or short circuit of the load. If the device is programmed for
current limitation (current limit 1), the current is limited to I
flag CLn is set. If using the status outputs for diagnosis, the over load flag is cleared immediately after the over
load condition is no longer present. If using the SPI interface and fault pin for diagnosis, the over load flag of the
affected channel is cleared by the rising edge of the
If the TLE8102SG is programmed for current shutdown (current limit 2), the current threshold is I
unlike in current limit 1, after time t
set. To turn on the channel again, this overload latch has to be reset by turning off the affected channel with either
the parallel input or SPI. In addition, the switch off delay time can be programmed by changing the slew rate
setting. If using the SPI interface and fault pin for diagnosis in case of current limit 2, the over load flag of the
affected channel is cleared by the rising edge of the CS signal after a successful SPI transmission when the IN
pin is low. A valid SPI cycle would not lead to a reset of the OVL flag of the affected channel during the IN-Pin is
high.
In both cases, the channel may shut down due to over temperature.
Data Sheet
E
E
=
=
V
1
-- -
2
LI
DS(CL)
D
2
Protection Functions
Protection Functions
Over Load Protection



1
V
------------------------------------ - ln 1
–
bat
------------------------------------ -
V
bat
–
R
V
V
–
L
DS(CL)
FAULT
bat
V
SCLK
DS(CL)
INn
CS
SO
ST
SI






–
d(fault)
Input Control
------------------------------------ -
V
bat
Status
SPI
R
, the affected channel is turned off and the according over load flag CLn is
–
L
V
I
DS(CL)
D



+
L
I
= 0:
CS
D
11
signal after a successful SPI transmission.
------
R
L
L
CLn
Tn
DS(lim1)
temperature
monitor
current
limitation /
shutdown
Electrical and Functional Description of Blocks
Smart Dual Channel Powertrain Switch
gate control
. After time t
T
d(fault)
GND
Figure 8
, the corresponding over load
OUTn
gives an overview pf
V1.3, 2008-04-24
DS(lim2)
TLE8102SG
. However,