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PDF TLE6252G Data sheet ( Hoja de datos )
| Número de pieza | TLE6252G | |
| Descripción | Fault Tolerant Differential CAN Transceiver | |
| Fabricantes | Siemens Semiconductor | |
| Logotipo |  |
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Fault Tolerant Differential CAN Transceiver
TLE 6252 G
Target Data
Features
• Data transmission rate up to 125 kBaud
• Very low current consumption in stand-by and
sleep mode
• Optimized EMI behavior due to limited and
symmetric dynamic slopes of CANL and
CANH signals
• Switches to single-wire mode during bus line
failure events
P-DSO-14-2
• Supports one-wire transmission mode with ground offset voltages up to 1.5 V
• Preventation from bus occupation in case of CAN controller failure
• Fully-integrated receiver filters
• Short-circuit detection to battery and ground in 12 V powered systems
• Thermal protection
• Bus line error protection against transients in automotive environment
Type
w TLE 6252 G
w New type
Ordering Code
Q67006-A9337
Package
P-DSO-14-2 (SMD)
Functional Description
The CAN Transceiver works as the interface between the CAN protocol controller and
the physical differential CAN bus. Figure 1 shows the principle configuration of a CAN
network.
The TLE 6252 is optimized for low-speed data transmission (up to 125 kBaud) in
automotive and industrial applications.
In normal operation mode a differential signal is transmitted/received. When bus wiring
failures are detected the device automatically switches in single-wire mode to maintain
communication.
While no data is transferred, the power consumption can be minimized by multiple low
power modes.
Semiconductor Group
1
1998-11-01
1 page  
TLE 6252 G
Functional Block Diagram
9
RTL
11
CANH
CANL 12
L Termination
Driver
Temperature
Protection
Failure
Management
VCC V BAT
10 14
2
TxD
8
RTH
Filter
H Termination
Receiver
NSTB 5
6
ENT
Failure Detect
Wake - Up
Time - Out
Stand - By
Sleep
Wake - Up
Contol Unit
Figure 3 Block Diagram
Semiconductor Group
5
Output
Stage
3
RxD
4
NERR
1
INH
7
WAKE
13
GND
AEB02412
1998-11-01
5 Page 
TLE 6252 G
Table 3 Specified Wiring Failure Cases on the Bus Line (cont’d) 1)
(according to ISO 11519-2)
CANH
CANL
Wire Short-Circuited to Battery
Failure case 6: V CANH > 7.2 V
Failure case 6a: 1.8 V < VCANH < 7.2 V (no ISO failure)
V CC
Failure case 3: V CANL > 7.2 V
Failure case 3a: 1.8 V < V CANL < 7.2 V (no ISO failure)
V BAT V CC
CANL
TxD1
RxD 2 TxD1
CANL
RxD 2
CANH
CANH
V BAT
GND AES02418
CANL Mutually Short-Circuited to CANH
GND
Failure case 7:
V CC
AES02419
CANL
TxD 1
CANH
RxD 2
GND AES02420
1) The images represent a communication between two participants of the network (see Figure 1). The controller
of the local area 1 transmits data (T×D1) to the receiver of the local area 2 (R×D2). When a single failure of
cases 1 to 7 occurs, the error handling enables communication through appreciated reactions.
Semiconductor Group
11
1998-11-01
11 Page | ||
| Páginas | Total 25 Páginas | |
| PDF Descargar | [ Datasheet TLE6252G.PDF ] | |
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