NSi1042/NSi1052
Isolated CAN Transceiver
Datasheet (EN) 1.0
Product Overview
Safety Regulatory Approvals
The NSi1042 is an isolated CAN transceiver which fully
compatible with the ISO11898-2 standard. The NSi1042
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
NSi1042 device is safety certified by UL1577 support 5kVrms
insulation withstand voltages, while providing high
electromagnetic immunity and low emissions. The data
rate of the NSi1042 is up to 5Mbps, and it can support at
least 110 CAN nodes. The NSi1042 provides thermal
protection and transmit data dominant time out function.
UL recognition: up to 5000Vrms for 1 minute per UL1577
Key Features
Device Information
Fully compatible with the ISO11898-2 standard
CQC certification per GB4943.1-2011
CSA component notice 5A
DIN VDE V 0884-11:2017-01
Applications
Industrial automation system
Isolated CAN Bus
Telecom
Up to 5000Vrms Insulation voltage
Part Number
NSI1042-DSWVR
Package
SOW8
Body Size
5.85mm ×7.50mm
Power supply voltage
NSI1042-DSWR
SOW16
10.30mm × 7.50mm
NSI1052-DSWR
SOW16
10.30mm × 7.50mm
VDD1: 2.5V to 5.5V
VDD2: 4.5V to 5.5V
Bus fault protection of -70V to +70V
Functional Block Diagrams
Transmit data (TXD) dominant time out function
Over current and over temperature protection
Date rate: up to 5Mbps
High CMTI: 150kV/us
Low loop delay: 600
Comparative Tracking Index
DIN EN 60112 (VDE 0303-11)
Material Group
IEC 60112
Unit
SOW8
um
V
I
Installation Classification per DIN VDE 0110
For Rated Mains Voltage ≤ 150Vrms
I to IV
I to IV
For Rated Mains Voltage ≤ 300Vrms
I to IV
I to IV
For Rated Mains Voltage ≤ 600Vrms
I to IV
I to IV
For Rated Mains Voltage ≤ 1000Vrms
I to III
I to III
Insulation Specification per DIN VDE V 0884-11:2017-01
1)
Climatic Category
40/125/21
Pollution Degree
per DIN VDE 0110, Table 1
Maximum Working Isolation Voltage
AC voltage
2
VIOWM
1500
1500
VRMS
2121
2121
VDC
VIORM
2121
2121
Vpeak
Vpd (m)
3977
3977
Vpeak
V pd (m)
3394
3394
Vpeak
V pd (m)
2545
2545
Vpeak
VIOTM
8000
8000
Vpeak
6250
6250
Vpeak
DC voltage
Maximum
Voltage
Repetitive
Isolation
Input to Output Test Voltage, Method
B1
Vini. b = VIOTM, Vpd(m) = VIORM ×
1.875,
tini = tm =1 sec, qpd≤ 5 pC,
100% production test
Input to Output Test Voltage, Method
A. After
Environmental
Tests
Subgroup 1
Vini. a = VIOTM, Vpd(m) = VIORM × 1.6,
Input to Output Test Voltage, Method
A. After Input and Output Safety Test
Subgroup 2 and Subgroup 3
Vini. a = VIOTM, Vpd(m) = VIORM × 1.2,
Maximum Transient Isolation Voltage
t = 60 sec
Maximum Surge Isolation Voltage
Test method per IEC62368-1,
tini = 60 sec, tm = 10 sec, qpd ≤ 5
pC
tini = 60 sec, tm = 10 sec, qpd ≤ 5
pC
1.2/50us waveform, VTEST = 1.6 ×
VIOSM
Isolation Resistance
Copyright © 2021, NOVOSENSE
VIO = 500 V, Tamb = TS
RIO
>109
Ω
Page 13
NSI1042/NSI1052
Datasheet (EN) 1.0
Description
Test Condition
Symbol
Value
VIO = 500 V, 100 °C ≤ Tamb ≤
125 °C
Isolation Capacitance
f = 1MHz
CIO
VTEST = 1.2 × VISO, t = 1 sec,
VISO
Unit
>1011
Ω
1.2
pF
Insulation Specification per UL1577
Withstand Isolation Voltage
5000
5000
Vrms
100% production test
1)
This coupler is suitable for “safe electrical insulation” only within the safety ratings. Compliance with the safety ratings shall be
ensured by means of suitable protective circuits.
6.2. Safety-Limiting Values
批注 [A2]: 已按新热阻更新参数,但图片还未更新
Reinforced isolation safety-limiting values as outlined in VDE-0884-11 of NSi1042-DSWVR
Description
Test Condition
Value
Unit
Safety Supply Power
RθJA = 100 °C/W, TJ = 150 °C, TA = 25 °C
1250
mW
Safety Supply Current
RθJA = 100 °C/ W, VI = 5V, TJ = 150 °C, TA = 25 °C
250
mA
150
°C
Safety Temperature
2)
Calculate with the junction-to-air thermal resistance, RθJA, of SOP8(300mil) package (Thermal Information Table) which is that of a
device installed on a low effective thermal conductivity test board (1s) according to JESD51-3.
2)
The maximum safety temperature has the same value as the maximum junction temperature (TJ) specified for the device.
1800
1600
1400
1200
1000
800
600
400
200
0
400
Safety Limiting Current per
Channel (mA)
Safety Limiting Power (mW)
1)
350
300
250
200
150
100
0
50
100
150
Ambient Temperature (°C)
200
50
0
0
50
100
150
200
Ambient Temperature (°C)
Figure 6.1 NSI1042-DSWVR Thermal derating Curve, Dependence of Safety Limiting Values with Case Temperature per DIN VDE V 0884-11
Copyright © 2021, NOVOSENSE
批注 [A3]: 需按新参数修改图片
Page 14
NSI1042/NSI1052
Datasheet (EN) 1.0
Reinforced isolation safety-limiting values as outlined in VDE-0884-11 of NSi1042-DSWR/NSi1052-DSWR
Description
Test Condition
Value
Unit
Safety Supply Power
RθJA = 69.9 °C/W, TJ = 150 °C, TA = 25 °C
1788
mW
Safety Supply Current
RθJA = 69.9 °C/ W, VI = 5V, TJ = 150 °C, TA = 25 °C
357
mA
150
°C
Safety Temperature2)
Calculate with the junction-to-air thermal resistance, RθJA, of SOP16(300mil) package (Thermal Information Table) which is that of
a device installed on a low effective thermal conductivity test board (1s) according to JESD51-3.
4)
The maximum safety temperature has the same value as the maximum junction temperature (TJ) specified for the device.
1800
1600
1400
1200
1000
800
600
400
200
0
450
400
350
300
250
200
150
100
50
0
Safety Limiting Current per
Channel (mA)
Safety Limiting Power (mW)
3)
0
50
100
150
200
Ambient Temperature (°C)
II
0
50
100
150
200
Ambient Temperature (°C)
Figure 6.2 NSi1042-DSWR/NSi1052-DSWR Thermal derating Curve, Dependence of Safety Limiting Values with Case Temperature per DIN VDE V 0884-11
6.3. Regulatory information
The NSi1042/NSi1052 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, 5000Vrms
Isolation voltage
File (pending)
Copyright © 2021, NOVOSENSE
Single Protection, 5000Vrms Isolation
voltage
Reinforced Insulation
2121Vpeak,
VIOSM=6250peak
File (pending)
File (pending)
Basic insulation
File (pending)
Page 15
批注 [A4]: 需按新参数修改图片
NSI1042/NSI1052
Datasheet (EN) 1.0
7. Function Description
The NSi1042 is an isolated CAN transceiver which fully compatible with the ISO11898-2 standard. The NSi1042 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 NSi1042 device is safety certified by UL1577 support 5kVrms insulation withstand voltages, while providing
high electromagnetic immunity and low emissions. The data rate of the NSi1042 is up to 5Mbps, and it can support at least
110 CAN nodes. The NSi1042 provides thermal protection and transmit data dominant time out function.
7.1. Device Functional Modes
Table 7.1. Driver Function Table
1
TXD
CANH
CANL
BUS STATE
L
H
L
Dominant
H
Z
Z
Recessive
Open
Z
Z
Recessive
H= high level; L=low level; Z= common mode(recessive) bias to VCC/2
Table 7.2. Receiver Function Table
1
VID=CANH-CANL
RXD
BUS STATE
VID ≥0.9V
L
Dominant
0.5< VID