2
LT1796
1796f
ORDER PART
NUMBER
(Note 1)
Supply Voltage (VCC) .............................................. 44V
RS Slope Control Input Voltage ................ – 0.3V to 44V
VREF 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
TJMAX = 150°C, θJA = 130°C/W (N8)
TJMAX = 150°C, θJA = 150°C/W (S8)
ABSOLUTE MAXIMUM RATINGS
W
WW
U
PACKAGE/ORDER INFORMATION
W
U
S8 PART MARKING
1796
1796I
1
2
3
4
8
7
6
5
TOP VIEW
RS
CANH
CANL
VREF
TXD
GND
VCC
RXD
S8 PACKAGE
8-LEAD PLASTIC SO
N8 PACKAGE
8-LEAD PDIP
D
R
DC ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 4.75V to 5.25V, VRS = 0V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VCANH
CANH Output Voltage
VTXD = 0V, No Load
q
3.8
4.4
5.0
V
VTXD = 0V, RL = 60
q
2.8
3.5
4.6
V
VCANL
CANL Output Voltage
VTXD = 0V, No Load
q
0
0.5
0.9
V
VTXD = 0V, RL = 60
q
0
1.3
1.6
V
VOD
Dominant State Differential Output Voltage
VTXD = 0V, No Load, VCC = 4.75V
q
3.0
3.6
5.0
V
VTXD = 0V, RL = 60, VCC = 4.75V
q
1.5
2.0
4.2
V
VTXD = 0V, RL = 36, VCC = 4.75V
q
1.2
1.7
4.2
V
VREC
Recessive State Differential Output Voltage
VTXD = 5V, RL = 60
q
–10
0
10
mV
VCMR
Recessive State Common Mode Output Voltage
VTXD = 5V, RL = 60, VCC = 5V
q
2.7
3
3.5
V
VCMD
Dominant State Common Mode Output Voltage
RL = 60, VCC = 5V
q
2
2.5
3
V
VIH
TXD Input High Voltage
q
2.8
V
VIL
TXD Input Low Voltage
q
2V
IIN1
TXD Input Current
0 < VTXD < VCC
q
–5
5
A
ISCH
CANH Short-Circuit Current, Dominant Mode
VCANH = 0V, VCC = 5.25V
q
– 250
– 60
mA
VCANH = – 36V, VCC = 5.25V
q
–10
–1
0
mA
VCANH = – 60V, VCC = 5.25V
q
–10
–1
0
mA
VCANH = 60V, VCC = 5.25V
q
0
1
10
mA
ISCL
CANL Short-Circuit Current, Dominant Mode
VCANL = 5V, VTXD = 0V, VCC = 5.25V
q
60
250
mA
VCANL = 36V, VTXD = 0V, VCC = 5.25V
q
0
1
10
mA
VCANL = 60V, VTXD = 0V, VCC = 5.25V
q
0
1
10
mA
VCANL = – 60V, VTXD = 0V, VCC = 5.25V
q
–10
–1
0
mA
RIND
Differential Input Resistance
VTXD = 5V, – 7V < VCANH, VCANL < 12V
q
140
240
350
k
CANH, CANL Input Resistance
VTXD = 5V, – 7V < VCANH, VCANL< 12V
q
70
120
175
k
Input Fault Current (CANH, CANL)
VRS = 5V, – 60V < VCANH, VCANL < 60V
q
–3
3
mA
VTXD = 5V, – 60V < VCANH, VCANL < 60V
q
–3
3
mA
VCC = 0V, – 60V < VCANH, VCANL < 60V
q
–3
3
mA
Consult LTC Marketing for parts specified with wider operating temperature ranges.