Datasheet

2
LT1796
1796f
ORDER PART
NUMBER
(Note 1)
Supply Voltage (V
CC
) .............................................. 44V
R
S
Slope Control Input Voltage ................ –0.3V to 44V
V
REF
Reference Output Pin ......................... –0.3V to 7V
Driver Input Voltage.................................. –0.3V to 44V
CANH, CANL Data Line Pins ...................... –80V to 80V
Receiver Output Voltages ............................–0.3V to 7V
Operating Temperature Range
LT1796C.................................................. 0°C to 70°C
LT1796I .............................................. –40°C to 85°C
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)..................300°C
LT1796CN8
LT1796CS8
LT1796IN8
LT1796IS8
T
JMAX
= 150°C, θ
JA
= 130°C/W (N8)
T
JMAX
= 150°C, θ
JA
= 150°C/W (S8)
ABSOLUTE MAXIMUM RATINGS
W
WW
U
PACKAGE/ORDER INFORMATION
W
U
U
S8 PART MARKING
1796
1796I
1
2
3
4
8
7
6
5
TOP VIEW
R
S
CANH
CANL
V
REF
TXD
GND
V
CC
RXD
S8 PACKAGE
8-LEAD PLASTIC SO
N8 PACKAGE
8-LEAD PDIP
D
R
DC ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 4.75V to 5.25V, V
RS
= 0V unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
CANH
CANH Output Voltage V
TXD
= 0V, No Load ● 3.8 4.4 5.0 V
V
TXD
= 0V, R
L
= 60Ω ● 2.8 3.5 4.6 V
V
CANL
CANL Output Voltage V
TXD
= 0V, No Load ● 0 0.5 0.9 V
V
TXD
= 0V, R
L
= 60Ω ● 0 1.3 1.6 V
V
OD
Dominant State Differential Output Voltage V
TXD
= 0V, No Load, V
CC
= 4.75V ● 3.0 3.6 5.0 V
V
TXD
= 0V, R
L
= 60Ω, V
CC
= 4.75V ● 1.5 2.0 4.2 V
V
TXD
= 0V, R
L
= 36Ω, V
CC
= 4.75V ● 1.2 1.7 4.2 V
V
REC
Recessive State Differential Output Voltage V
TXD
= 5V, R
L
= 60Ω ● –10 0 10 mV
V
CMR
Recessive State Common Mode Output Voltage V
TXD
= 5V, R
L
= 60Ω, V
CC
= 5V ● 2.7 3 3.5 V
V
CMD
Dominant State Common Mode Output Voltage R
L
= 60Ω, V
CC
= 5V ● 2 2.5 3 V
V
IH
TXD Input High Voltage ● 2.8 V
V
IL
TXD Input Low Voltage ● 2V
I
IN1
TXD Input Current 0 < V
TXD
< V
CC
● –5 5 µA
I
SCH
CANH Short-Circuit Current, Dominant Mode V
CANH
= 0V, V
CC
= 5.25V ● –250 –60 mA
V
CANH
= –36V, V
CC
= 5.25V ● –10 –1 0 mA
V
CANH
= –60V, V
CC
= 5.25V ● –10 –1 0 mA
V
CANH
= 60V, V
CC
= 5.25V ● 0 110 mA
I
SCL
CANL Short-Circuit Current, Dominant Mode V
CANL
= 5V, V
TXD
= 0V, V
CC
= 5.25V ● 60 250 mA
V
CANL
= 36V, V
TXD
= 0V, V
CC
= 5.25V ● 0 110 mA
V
CANL
= 60V, V
TXD
= 0V, V
CC
= 5.25V ● 0 110 mA
V
CANL
= –60V, V
TXD
= 0V, V
CC
= 5.25V ● –10 –1 0 mA
R
IND
Differential Input Resistance V
TXD
= 5V, –7V < V
CANH
, V
CANL
< 12V ● 140 240 350 kΩ
CANH, CANL Input Resistance V
TXD
= 5V, –7V < V
CANH
, V
CANL
< 12V ● 70 120 175 kΩ
Input Fault Current (CANH, CANL) V
RS
= 5V, –60V < V
CANH
, V
CANL
< 60V ● –3 3 mA
V
TXD
= 5V, –60V < V
CANH
, V
CANL
< 60V ● –3 3 mA
V
CC
= 0V, –60V < V
CANH
, V
CANL
< 60V ● –3 3 mA
Consult LTC Marketing for parts specified with wider operating temperature ranges.