TLE8201R Datasheet, PDF (9/45 Pages) Infineon Technologies AG – Door Module Power IC

TLE 8201R
Block Description and Electrical Characteristics
4
Block Description and Electrical Characteristics
4.1
Power Supply
4.1.1 General
The TLE 8201R has two power supply inputs: All power drivers are connected to the
supply voltage V_S which is connected to the automotive 12 V board-net. The internal
logic part is supplied by a separate Voltage V_CC = 5 V.
The advantage of this system is that information stored in the logic remains intact in the
event of short-term failures in the supply voltage V_S. The system can therefore continue
to operate after V_S has recovered, without having to be reprogrammed.
A rising edge on V_CC triggers an internal Power-On Reset (POR) to initialize the IC at
power-on. All data stored internally is deleted, and the outputs are switched to high-
impedance status (tristate).
4.1.2 Sleep-Mode
The TLE 8201R can be put in a low current-consumtion mode by setting the input INH
to LOW. The INH pin has an internal pull-down current source. In sleep-mode, all output
transistors are turned off and the SPI is not operating. When enabling the IC by setting
INH from L to H, a Power-On Reset is performed as described above.
4.1.3 Reverse Polarity
The TLE 8201R requires an external reverse polarity protection. The gate-driver
(charge-pump output) for an external n-channel logic-level MOS-FET is integrated. The
gate voltage is provided at pin GO which should be connected as shown in the
application diagram.
4.1.4 Electrical Characteristics
Electrical Characteristics
8 V < V_S < 20 V; 4.75 V < V_CC < 5.25 V; INH = High; all outputs open;
-40 °C < T_j < 150 °C; unless otherwise specified
Pos. Parameter
Sym- Limit Values Unit
bol _{min. typ. max.}
Conditions
Current Consumption
4.1.1 Supply current
4.1.2 Logic supply current
I_S
–
I_CC
–
3.0 7.0 mA –
5 10 mA SPI not active
Data Sheet Rev. 2.0
9
2006-06-07