TLE6214L_04 Datasheet, PDF (10/22 Pages) Infineon Technologies AG – Smart Dual Current Sense Switch

Datasheet TLE 6214 L
4. Reset Registers : Sets back all internal registers. Logic registers to default and Fault registers to no
error.
Default settings after Reset:
Parallel Input control
Autorestart
Status Outputs ST1 and ST2 active
Current Limit 2
Channel ON/OFF register “OFF”
Slew rate fast
5. Sleep mode : Activates the low quiescent mode. In sleep mode only the command “wake up” is
valid. Other commands will not lead to any reactions. Wake up is done by the Wake Up command or by
undervoltage reset.
6. Wake Up : Deactivates the low quiescent mode. A specified time (t_wake) after this command the IC is
fully functional.
7. Channels on / off : Turns on / off the power outputs (if configured for serial control)
Ch1 : Serial control bit of channel 1
0: Output off(default)
1: Output on
Ch2 : Serial control bit of channel 2
0: Output off(default)
1: Output on
After activation of the low quiescent mode by the “sleep” command, the outputs are turned off and the
serial control register is set to default values.
8. No Command : No valid command and will not lead to an reaction (register value change, switching
channels, ...) of the IC. After Chip Select giong L!H the diagnosis register will not be reset.
SPI Diagnostics:
As soon as a fault occurs for longer than the fault filtering time (exept Overtemperature; no filtering
time), the fault information is latched into the diagnosis register (and the Fault pin will change from high
to low state). A new error on the same channel will over-write the old error report. Serial data out pin
(SO) is in a high impedance state when CS is high. If CS receives a LOW signal, all diagnosis bits can
be shifted out serially. If the sent command was valid the rising edge of CS will reset all diagnosis reg-
isters and restart the fault filtering time. In case of an invalid command the device will ignore the data
bits and the diagnosis register will not be reset at the rising CS edge.
V3.0
Page 10
18.10.2004