TLE6252G Datasheet PDF - Siemens Semiconductor

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TLE6252G
Siemens Semiconductor

Part Number TLE6252G
Description Fault Tolerant Differential CAN Transceiver
Page 25 Pages


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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



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TLE 6252 G
Local Area 1
Controller 1
RxD 1
TxD 1
Local Area 2
Controller 2
RxD 2
TxD 2
Transceiver 1
Transceiver 2
Bus Line
Figure 1 CAN Network Example
AES02410
Semiconductor Group
2
1998-11-01



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Pin Configuration
(top view)
Figure 2
P-DSO-14-2
INH
TxD
RxD
NERR
NSTB
ENT
WAKE
1
2
3
4
5
6
7
14 V BAT
13 GND
12 CANL
11 CANH
10 V CC
9 RTL
8 RTH
AEP02411
TLE 6252 G
Semiconductor Group
3
1998-11-01



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TLE 6252 G
Table 1
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Pin Definitions and Functions
Symbol Function
INH Inhibit output;
For controlling an external 5 V regulator
TxD Transmit data input;
LOW: bus is dominant, HIGH: bus is recessive
RxD
Receive data output;
LOW: bus is dominant
NERR
Error flag output;
LOW: bus error
NSTB
Not stand-by input;
Digital control signal for low power modes
ENT
Enable transfer input;
Digital control signal for low power modes
WAKE
Wake-up input;
If level of VWAKE changes the device initials a wake-up from
sleep mode by switching INH HIGH
RTH
Termination resistor output;
For CANH line, controlled by internal failure management
RTL Termination resistor output;
For CANL line, controlled by internal failure and mode
management
VCC Supply voltage;
+5V
CANH
Bus line H;
HIGH: dominant state, external pull-down for termination
CANL
Bus line L;
LOW: dominant state, external pull-up for termination
GND
Ground
VBAT
Battery voltage;
+ 12 V
Semiconductor Group
4
1998-11-01



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TLE6252G Fault Tolerant Differential CAN Transceiver TLE6252G
Siemens Semiconductor
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