Document
CAN TRANSCEIVER
TECHNICAL DATA
ILA82C251
The ILA82C251 is the interface between the CAN protocol controller and the physical bus. The device provides differential transmit capability to the bus and differential receive capability to the CAN controller. The IC is intended for automotive electronic applications
Device ILA82C251D ILA82C251DT
ORDERING INFORMATION
Operating Temperature
Range
Package
Tj = -40 to 125 C
SOP-8
Tj = -40 to 125 C
SOP-8
Shipping Tube Tape & Reel
MS-012AA (SO-8) plastic package
Fig 1 – External view of packaged IC
FEATURES
Fully compatible with the “ISO 11898-24 V” standard
Thermally protected Short-circuit proof Three mode operation An unpowered node does not disturb the bus lines At least 110 nodes can be connected High speed of data transfer (up to 1 Mbit/s) High immunity against electromagnetic
interference.
Permissible value of electrostatic potential is 2000V. The IC is realized in 8-pin plastic SO package ( MS-012AA)
TXD 01 GND 02 VCC 03 RXD 04
08 RS 07 CANL 06 CANL 05 Vref
Fig. 2 – Pin layout
May 2011, Ver.01
1
ILA82C251
Table 1 – Pin description
Pin number 01 02 03 04 05 06 07 08 -
Pad number
01 02 03 05 06 07 08 09 04
Symbol
TXD GND VCC RXD Vref CANL CANH
RS -
Description
Transmit data input (transmitter) Ground Supply voltage Receive data output (receiver) Reference voltage output LOW-level CAN voltage input/output HIGH-level CAN voltage input/output Mode set input Not bonded
TXD
01
Input signal block
RS RXD
08 04
Switch mode block
05 Vref
Reference voltage
Protection block Driver
Receiver
VD1, VD2 – diodes; VT1, VT2 - transistors
Fig. 3 – Block diagram
VCC 03
VT1 VD1
07 06 VD2
CAN HIGH
CANL
VT2 02 GND
May 2011, Ver.01
2
ILA82C251
Table 2 – Absolute maximum ratings
Symbol
Parameter
Target Min Max
Unit
VCC Supply voltage
-0.3 7.0
V
Vn 01, 04, 05, 08 pin voltage
-0.3 VCC + 0.3
V
Vtr 06, 07 pin transient voltage
-200
200
V
Tstg Storage temperature
-60 150
oC
Tj Junction temperature
- 150 oC
* Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the
device.
These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied.
Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
Table 3 – Recommended operating condition
Symbol
VCC VCAN
Parameter
Supply voltage Input/output high and low level voltage of CAN - signal
Target Min Max 4.5 5.5 -36 36
Unit
V V
May 2011, Ver.01
3
ILA82C251
Table 4 – Electric parameters at -40 ≤Tamb ≤ +125C
Symbol
Parameter
Measurement mode
Supply
I3 Supply current
Dominant;
V1 = 1.0 V, VCC 5.1 V Dominant;
V1 = 1.0 V, VCC 5.25 V Dominant;
V1 = 1.0 V, VCC 5.5 V Recessive;
V1 = 4.0 V, R8 = 47 k Standby mode 1) Standby mode 2)
Transmitter
VIH High-level input voltage
Output recessive
VIL Low-.