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L9779WD Fiches technique(PDF) 97 Page - STMicroelectronics

No de pièce L9779WD
Description  Multifunction IC for engine management system
PDF  170 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9779WD Fiches technique(HTML) 97 Page - STMicroelectronics

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L9779WD
Functional description
169
CAN_H
CAN_L
VCANHdom
CANH voltage level
in dominant state
Active mode;
VTXCAN = VTXCANLOW;
RL = 60 Ω
2.75
-
4.5
V
VCANLdom
CANL voltage level
in dominant state
0.5
-
2.25
V
VDIFF,domOUT
Differential output
voltage in dominant
state: VCANHdom-
VCANLdom
1.5
-
3
V
VCM
Driver symmetry:
VCANHdom+VCANLdom
RL = 60 Ω; CSPLIT = 4.7 nF;
0.9*
VCANSUP
VCANSUP
1.1*
VCANSUP
V
VCANHrec
CANH voltage level
in recessive state
VTX_CAN = VTX_CANHIGH;
No load
22.5
3
V
VCANLrec
CANL voltage level
in recessive state
22.5
3
V
VDIFF,recOUT
Differential output
voltage in recessive
state: VCANHrec-
VCANLrec
-50
-
50
mV
VCANHL,CM
Common mode bus
voltage
Application info:
Measured with respect to the
ground of each CAN node
-12
-
+12
V
IOCANH,dom
CANH output current
in dominant state
Active mode;
VTX_CAN = VTX_CANLOW;
VCANH = 0 V
-100
-75
-45
mA
IOCANL,dom
CANL output current
in dominant state
Active mode;
VTX_CAN = VTX_CANLOW;
VCANL = 5 V
45
75
100
mA
ILeakage
Input leakage
current
Unpowered device;
VBUS = 5 V
0
-
250
µA
Rin
Internal resistance
Active mode
VTX_CAN = VTX_CANHIGH;
No load
25
-
45
kΩ
Rin,diff
Differential internal
resistance
Active mode & STBY mode;
VTX_CAN = VTX_CANHIGH;
No load
50
-
85
kΩ
Cin
Internal capacitance Guaranteed by design
-
20
-
pF
Cin,diff
Differential internal
capacitance
Guaranteed by design
-
10
-
pF
VTHdom
Differential receiver
threshold voltage
recessive to
dominant state
Active mode
-
-
0.9
V
Table 42. CAN transceiver electrical characteristics (continued)
Pin
Symbol
Description
Test conditions
Min
Typ
Max
Unit



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