TLE6263 Datasheet, PDF (7/40 Pages) Infineon Technologies AG – LS CAN, LDO and HS Switch

Final Datasheet TLE 6263
6
Circuit Description
The TLE 6263 is a monolithic IC, which incorporates a failure tolerant low speed CAN-
transceiver for differential mode data transmission, a low dropout voltage regulator for
internal and external 5V supply as well as a SPI (serial peripheral interface) to control
and monitor the IC. Further there are integrated a high side switch, two wake-up inputs,
a window watchdog circuit with fail safe output as well as a reset circuit and early warning
function. Figure 2 shows a schematic block diagram of the TLE 6263. Table 1 shows
the status of the different chip features during the four main operation modes.
Table 1: Truth table of the TLE 6263
Feature
normal mode receive-only V_bat stand-by
mode
mode
V_CC
ON
ON
ON
Reset
ON
ON
ON
Watchdog
ON
ON
ON¹⁾
Fail safe output ^ON
ON
ON⁵⁾
V_INT-Fail²⁾
ON
ON
ON
Sense input
ON
ON
ON
Wake-up 1 / 2
ON³⁾
ON³⁾
ON
HS-switch⁴⁾
ON
ON
ON
HS-cyclic-sense^{4) OFF}
OFF
ON
SPI
ON
ON
ON
CAN transmit
ON
OFF
OFF
CAN receive
ON
ON
OFF
RTL output
switched to Vcc
switched to
Vcc
switched to
Vs
RxD output
L = bus dominant; L = bus dominant; active low wake-up
H = bus recessive H = bus recessive interrupt
INT output
active low early
warning
active low early
warning for V_INT
and V_CC
active low early
warning
sleep
mode
OFF
OFF
OFF
OFF
ON
OFF
ON
OFF
ON
OFF
OFF
OFF
switched to
Vs
low
low
1) _{at low VCC output current only active when watchdog undercurrent function is not activated}
2) _{can only be monitored in Vbat-stand-by mode via SPI}
3) _{no wake-up interrupt generated, logic level status monitored via SPI}
4) _{only active when selected via SPI}
5) _{if watchdog under-current function active, than FSO = low}
Version 2.08
7
2004-06-07