TLE 7263E Infineon Technologies, TLE 7263E Datasheet - Page 15

• Manufacturer Part Number: TLE 7263E
• Manufacturer: Infineon Technologies

Specifications of TLE 7263E

• Packages: PG-DSO-36
• Transceiver: High Speed CAN ISO 11898 - 5 / 1 x LIN2.0 / J2602
• Voltage Regulator Output: 200 mA + 200 mA
• Watchdog: Window Watchdog
• Quiescent Current (max.): 49 ?A (typ) Sleep Mode (5V on)
• Standby Current: 68 ?A (typ) Stop Mode (5V on)

4.6
The SBC Stop Mode has the advantage of reducing the current consumption to a
minimum, while supplying the microcontroller with its quiescent current during its power
saving mode (“Stop”). This mode is entered via SPI command, and turns-off the
integrated bus transceivers and respective termination, but the main voltage regulator
remains active. The High-Side switch is turned-on according to the SPI timings setting
for cyclic sense, as there is the cyclic sense period and the on-time. A voltage level
change at the monitoring/wake-up pins will, in contrast to the behavior in Sleep Mode,
generate a pulse at the WKO pin that is monitored by the microcontroller, e.g. at an
external interrupt input. In case the wake-up event was a CAN or LIN message, the
respective RxD pin will be pulled low. (The microcontroller itself has to take care of
switching SBC modes after a wake-up event notification (see
Figure 8
Data Sheet
MS2
0
SBC Stop Mode with Cyclic Sense
SBC Active Mode
State Diagram “SBC Stop Mode with Cyclic Sense”
MS1
0 / 1
MS0
0 / 1
µController SPI-Command:
- select „cyclic sense period“ via SPI Timing Bits
- select HS-Switch on-time via SPI „On-Time Bit“
- select SBC Stop Mode via SPI Mode Bits
- window watchdog activation / deactivation via SPI
[„off“ once current consumption below threshold]
Vcc1
ON
“sense period“
MS2
MS2
1
1
HS Cyclic Sense
SBC Stop Mode
HS-Switch = OFF
HS-Switch = ON
MONx inputs
Initialization of
MS1
MS1
1
1
after „on-time“
MS0
MS0
1
1
1)
Vcc1
Vcc1
ON
ON
15
SBC Standby Mode
Vcc1
ON
wake event notification [to µC]:
- CAN msg. => RxD
- LIN msg. => RxD
- MONx => WKO
transition caused by:
- event at MON1 - 3 inputs
- event at MON4 input
- CAN message
- LIN message
[only during HS-ON state]
[SPI indicates source]
Figure
switched into SBC Standby mode
1)
if initialization fails, device is
cyclic_sense_stop_TLE7263
Rev. 1.70, 2009-09-30
LIN
CAN
8).)
Power Up
Start Up
(low)
(low)
TLE 7263E
Features