NSi1050
Isolated CAN Transceiver
Datasheet (EN) 1.3
Product Overview
The NSi1050 is a isolated CAN transceiver which fully
compatible with the ISO11898-2 standard. The NSi1050
integrated two channel digital isolators and a high
reliability CAN transceiver. The digital isolator is silicon
oxide isolation based on Novosense capacity isolation
technology. The high integrated solution can help to
simplify system design and improve reliability. The
NSi1050 device is safety certified by UL1577 support
5kVrms insulation withstand voltages, while providing high
electromagnetic immunity and low emissions. The data
rate of the NSi1050 is up to 1Mbps, and it can support at
least 110 CAN nodes. The NSi1050 provides thermal
protection and transmit data dominant time out function.
Key Features
Fully compatible with the ISO11898-2 standard
Up to 5000Vrms Insulation voltage
Power supply voltage
VDD1: 2.5V to 5.5V
VDD2: 4.5V to 5.5V
Bus fault protection of -40V to +40V
Transmit data (TXD) dominant time out function
Over current and over temperature protection
Date rate: up to 1Mbps
High CMTI: 100kV/us
Low loop delay: 400
>600
Ⅱ
Ⅰ
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NSi1050
Datasheet(EN)1.3
6.2. DIN VDE V 0884-11(VDE V 0884-11):2017-01 INSULATION CHARATERISTICS
Description
Test Condition
Symbol
Value
Unit
DUB8
SOW16
For Rated Mains Voltage ≤ 150Vrms
Ⅰto Ⅳ
Ⅰto Ⅳ
Ⅰto Ⅲ
Ⅰto Ⅲ
For Rated Mains Voltage ≤ 400Vrms
Ⅰto Ⅲ
Ⅰto Ⅲ
10/105/21
10/105/21
Pollution Degree per DIN VDE 0110,
2
2
400
1500
VRMS
565
2121
VDC
VIORM
565
2121
Vpeak
V pd (m)
847
/
Vpeak
/
3977
Vpeak
Installation Classification per DIN
VDE 0110
For Rated Mains Voltage ≤ 300Vrms
Climatic Classification
Table 1
Maximum Working Isolation Voltage
AC voltage
VIOWM
DC voltage
Maximum repetitive isolation
voltage
Input to Output Test Voltage,
Method B1
V IORM × 1.5 = V pd (m) , 100%
production test,
t ini = t m = 1 sec, partial
discharge < 5 pC
V IORM × 1.875 = V pd (m) ,
100% production test,
t ini = t m = 1 sec, partial
discharge < 5 pC
Input to Output Test Voltage,
Method A
After Environmental Tests Subgroup
1
After Input and /or Safety Test
Subgroup 2 and Subgroup 3
Maximum transient isolation
voltage
Maximum Surge Isolation Voltage
Copyright © 2020, NOVOSENSE
V IORM × 1.2= V pd (m) , t ini = 60
sec, t m = 10 sec, partial
discharge < 5 pC
V pd (m)
678
/
Vpeak
V IORM × 1.2= V pd (m) , t ini = 60
sec, t m = 10 sec, partial
discharge < 5 pC
V pd (m)
/
3394
Vpeak
V IORM × 1.2= V pd (m) , t ini = 60
sec, t m = 10 sec, partial
discharge < 5 pC
V pd (m)
678
2545
Vpeak
t = 60 sec
VIOTM
5300
8000
Vpeak
Test method per
IEC60065,1.2/50us
waveform,
VTEST=VIOSM×1.3
VIOSM
5384
/
Vpeak
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NSi1050
Datasheet(EN)1.3
Test method per
IEC60065,1.2/50us
waveform,
VTEST=VIOSM×1.6
/
6250
Vpeak
>109
>109
Ω
>1011
>1011
Ω
CIO
0.8
0.8
pF
Input capacitance
CI
2
2
pF
Total Power Dissipation at 25℃
Ps
1.7
1.5
W
Isolation resistance
VIO =500V at Tamb=TS
RIO
VIO =500V
at 100℃≤Tamb≤125℃
Isolation capacitance
f = 1MHz
Safety input, output, or supply
current
θJA = 72°C/W, V I = 5.5 V, T J
= 150 °C, T A = 25 °C
Is
Safety input, output, or supply
current
θJA = 84 °C/W, V I = 5.5 V, T
J = 150 °C, T A = 25 °C
Is
Case Temperature
Ts
310
mA
299
150
150
mA
℃
Figure 3.1 NSi1050-DSWR Thermal Derating Curve, Dependence of Safety Limiting Values with Case Temperature per DIN VDE V 0884-11
Copyright © 2020, NOVOSENSE
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NSi1050
Datasheet(EN)1.3
Figure 3.1 NSi1050-DDBR Thermal Derating Curve, Dependence of Safety Limiting Values with Case Temperature per DIN VDE V 0884-11
6.3. REGULATORY INFORMATION
The NSi1050-DDBR is approved by the organizations listed in table.
CUL
UL 1577 Component
Recognition Program1
VDE
Approved under CSA Component
Acceptance Notice 5A
DIN VDE V 088411:2017-012
CQC
Certified by CQC11471543-2012
GB4943.1-2011
Single Protection, 3750Vrms
Isolation voltage
Single Protection, 3750Vrms Isolation
voltage
File (E500602)
File (E500602)
Basic Insulation
565Vpeak,
VIOSM=5384Vpeak
File (40050121)
Basic insulation at
400Vrms (565Vpeak)
File (CQC20001263786)
The NSi1050-DSWR is approved by the organizations listed in table.
CUL
UL 1577 Component
Recognition Program1
VDE
Approved under CSA Component
Acceptance Notice 5A
DIN VDE V 088411:2017-012
CQC
Certified by CQC11471543-2012
GB4943.1-2011
7.0
Single Protection, 5000Vrms
Isolation voltage
Single Protection, 5000Vrms Isolation
voltage
Reinforced Insulation
2121Vpeak,
VIOSM=6250peak
Basic insulation at
1500Vrms (2121Vpeak)
File (E500602)
File (E500602)
File (pending)
File (CQC20001264939)
FUNCTION DESCRIPTION
The NSi1050 is a isolated CAN transceiver which fully compatible with the ISO11898-2 standard. The NSi1050 integrated
two channel digital isolators and a high reliability CAN transceiver. The digital isolator is silicon oxide isolation based on
Novosense capacity isolation technology. The high integrated solution can help to simplify system design and improve
reliability. The NSi1050-DSWR device is safety certified by UL1577 support 5kVrms insulation withstand voltages, while the
NSi1050-DDBR device is safety certified by UL1577 support 3kVrms insulation withstand voltages. The NSi1050 is providing
high electromagnetic immunity and low emissions. The data rate of the NSi1050 is up to 1Mbps, and it can support at
least 110 CAN nodes. The NSi1050 provides thermal protection and transmit data dominant time out function.
7.1. DEVICE FUNCTIONAL MODES
Table 4.1. Driver Function Table
TXD
CANH
CANL
BUS STATE
L
H
L
Dominant
H
Z
Z
Recessive
Open
Z
Z
Recessive
Copyright © 2020, NOVOSENSE
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NSi1050
1
Datasheet(EN)1.3
H= high level; L=low level; Z= common mode(recessive) bias to VCC/2
Table 4.2. Receiver Function Table
1
VID=CANH-CANL
RXD
BUS STATE
VID ≥0.9V
L
Dominant
0.5< VID