TLE8108EM Infineon Technologies, TLE8108EM Datasheet - Page 16

• Manufacturer Part Number: TLE8108EM
• Manufacturer: Infineon Technologies

Specifications of TLE8108EM

• Packages: PG-SSOP-24
• Thermal Class: Exposed Pad
• Id Nom: 8 x 0.5 A
• Pin Count: 24.0 Pins
• Channels: 8.0
• Comment: 8 channel realy and LED driver

6
The device 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 as “outside”
normal operating range. Protection functions are not designed for continuous repetitive operation.
6.1
The TLE8108EM is protected in case of Overload or short circuit of the load. After time
channel
The channel can be switched on again with the corresponding command after programming the Clear mode to
reset the diagnosis register. Please refer to the example from
Figure 8
6.2
In case of Overload, a temperature sensor for each channel causes an overheated channel
prevent destruction and the according diagnosis information is stored into the corresponding diagnosis register.
The channel can be switched on again after programming the Clear mode and sending the ON command
afterwards. Please refer to
6.3
In case of reverse polarity, the intrinsic body diode of the n-MOSFET generates power to be dissipated. The
reverse current through the intrinsic body diode of the power transistor has to be limited by the connected load.
The VDD supply pins must be protected against reverse polarity externally.
Data Sheet
n
switches off and the according diagnosis information is stored into the corresponding diagnosis register.
Protection Functions
Overload Protection
Shutdown at Overload
Overtemperature Protection
Reverse Polarity Protection
Channel
Command
I
I
I
D
D(OVL2)
D(OVL1)
t
Chapter 7
OFF(OVL2)
t
OFF(OVL1)
ON
for information on diagnosis features.
Removed
Overload
OFF
16
ON
Figure 8
SCB entry
Reset of
Smart 8-Channel Low Side Switch
CLR
for details.
ON
t
OFF(OVL)
Protection Functions
Rev. 1.0, 2011-03-23
t
t
Overload Timing.vsd
n
TLE 8108 EM
, the overloaded
to switch off to