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ADuM4151 Schematic ( PDF Datasheet ) - Analog Devices

Teilenummer ADuM4151
Beschreibung SPIsolator Digital Isolators
Hersteller Analog Devices
Logo Analog Devices Logo 




Gesamt 22 Seiten
ADuM4151 Datasheet, Funktion
Data Sheet
5 kV, 7-Channel,
SPIsolator Digital Isolators for SPI
ADuM4151/ADuM4152/ADuM4153
FEATURES
Supports up to 17 MHz SPI clock speed
4 high speed, low propagation delay, SPI signal isolation
channels
Three 250 kbps data channels
20-lead SOIC_IC package with 8.3 mm creepage
High temperature operation: 125°C
High common-mode transient immunity: >25 kV/µs
Safety and regulatory approvals
UL recognition per UL 1577
5000 V rms for 1 minute SOIC long package
CSA Component Acceptance Notice 5A
VDE certificate of conformity
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
Maximum working insulation voltage (VIORM): 849 V peak
APPLICATIONS
Industrial programmable logic controllers (PLCs)
Sensor isolation
GENERAL DESCRIPTION
The ADuM4151/ADuM4152/ADuM41531 are 7-channel,
SPIsolator™ digital isolators optimized for isolated serial peripheral
interfaces (SPIs). Based on the Analog Devices, Inc., iCoupler®
chip scale transformer technology, the low propagation delay in
the CLK, MO/SI, MI/SO, and SS SPI bus signals supports SPI
clock rates of up to 17 MHz. These channels operate with 14 ns
propagation delay and 1 ns jitter to optimize timing for SPI.
The ADuM4151/ADuM4152/ADuM4153 isolators also provide
three additional independent low data rate isolation channels in
three different channel direction combinations. Data in the slow
channels is sampled and serialized for a 250 kbps data rate with
up to 2.5 µs of jitter in the low speed channels.
FUNCTIONAL BLOCK DIAGRAMS
VDD1 1
GND1 2
MCLK 3
MO 4
MI 5
MSS 6
ADuM4151
ENCODE
ENCODE
DECODE
ENCODE
VIA 7
VIB 8
VOC 9
CONTROL
BLOCK
GND1 10
DECODE
DECODE
ENCODE
DECODE
CONTROL
BLOCK
20 VDD2
19 GND2
18 SCLK
17 SI
16 SO
15 SSS
14 VOA
13 VOB
12 VIC
11 GND2
Figure 1. ADuM4151 Functional Block Diagram
VDD1 1
GND1 2
MCLK 3
MO 4
MI 5
MSS 6
ADuM4152
ENCODE
ENCODE
DECODE
ENCODE
VIA 7
VOB 8
VOC 9
CONTROL
BLOCK
GND1 10
DECODE
DECODE
ENCODE
DECODE
CONTROL
BLOCK
20 VDD2
19 GND2
18 SCLK
17 SI
16 SO
15 SSS
14 VOA
13 VIB
12 VIC
11 GND2
Figure 2. ADuM4152 Functional Block Diagram
VDD1 1
GND1 2
MCLK 3
MO 4
MI 5
MSS 6
ADuM4153
ENCODE
ENCODE
DECODE
ENCODE
VOA 7
VOB 8
VOC 9
CONTROL
BLOCK
GND1 10
DECODE
DECODE
ENCODE
DECODE
CONTROL
BLOCK
20 VDD2
19 GND2
18 SCLK
17 SI
16 SO
15 SSS
14 VIA
13 VIB
12 VIC
11 GND2
Figure 3. ADuM4153 Functional Block Diagram
1 Protected by U.S. Patents 5,952,849; 6,873,065; 6,262,600; and 7,075,329. Other patents are pending.
Rev. A
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One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2014–2015 Analog Devices, Inc. All rights reserved.
Technical Support
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ADuM4151 Datasheet, Funktion
ADuM4151/ADuM4152/ADuM4153
Data Sheet
Table 6. For All Models1, 2, 3
Parameter
DC SPECIFICATIONS
MCLK, MSS, MO, SO, VIA, VIB, VIC
Logic High Input Threshold
Logic Low Input Threshold
Input Hysteresis
Input Current per Channel
SCLK, SSS, MI, SI, VOA, VOB, VOC
Logic High Output Voltages
Logic Low Output Voltages
VDD1, VDD2 Undervoltage Lockout
Supply Current per High Speed Channel
Dynamic Input Supply Current
Dynamic Output Supply Current
Supply Current for All Low Speed Channels
Quiescent Side 1 Current
Quiescent Side 2 Current
AC SPECIFICATIONS
Output Rise/Fall Time
Common-Mode Transient Immunity4
Symbol
VIH
VIL
VIHYST
II
VOH
VOL
UVLO
IDDI(D)
IDDO(D)
IDD1(Q)
IDD2Q)
tR/tF
|CM|
Min
0.7 × VDDx
−1
VDDx − 0.1
VDDx − 0.4
25
Typ
500
+0.01
5.0
4.8
0.0
0.2
2.6
0.086
0.019
2.9
4.7
2.5
35
Max
0.3 × VDDx
+1
0.1
0.4
Unit
V
V
mV
µA
V
V
V
V
V
mA/Mbps
mA/Mbps
mA
mA
ns
kV/µs
Test Conditions/Comments
0 V ≤ VINPUT ≤ VDDx
IOUTPUT = −20 µA, VINPUT = VIH
IOUTPUT = −4 mA, VINPUT = VIH
IOUTPUT = 20 µA, VINPUT = VIL
IOUTPUT = 4 mA, VINPUT = VIL
10% to 90%
VINPUT = VDDx, VCM = 1000 V,
transient magnitude = 800 V
1 VDDx = VDD1 or VDD2.
2 VINPUT is the input voltage of any of the MCLK, MSS, MO, SO, VIA, VIB, or VIC pins.
3 IOUTPUT is the output current of any of the SCLK, SSS, MI, SI, VOA, VOB, or VOC pins.
4 |CM| is the maximum common-mode voltage slew rate that can be sustained while maintaining output voltages within the VOH and VOL limits. The common-mode
voltage slew rates apply to both rising and falling common-mode voltage edges.
Rev. A | Page 6 of 22

6 Page









ADuM4151 pdf, datenblatt
ADuM4151/ADuM4152/ADuM4153
Data Sheet
DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12 INSULATION CHARACTERISTICS
These isolators are suitable for reinforced electrical isolation only within the safety limit data. Maintenance of the safety data is ensured by
protective circuits. The asterisk (*) marked on packages denotes DIN V VDE V 0884-10 approval.
Table 16.
Description
Installation Classification per DIN VDE 0110
For Rated Mains Voltage ≤ 150 V rms
For Rated Mains Voltage ≤ 300 V rms
For Rated Mains Voltage ≤ 400 V rms
Climatic Classification
Pollution Degree per DIN VDE 0110, Table 1
Maximum Working Insulation Voltage
Input-to-Output Test Voltage, Method b1
Input-to-Output Test Voltage, Method a
After Environmental Tests Subgroup 1
After Input and/or Safety Test Subgroup 2
and Subgroup 3
Highest Allowable Overvoltage
Surge Isolation Voltage
Safety Limiting Values
Case Temperature
Safety Total Dissipated Power
Insulation Resistance at TS
Test Conditions/Comments
VIORM × 1.875 = Vpd(m), 100% production test,
tini = tm = 1 sec, partial discharge < 5 pC
VIORM × 1.5 = Vpd(m), tini = 60 sec, tm = 10 sec,
partial discharge < 5 pC
VIORM × 1.2 = Vpd(m), tini = 60 sec, tm = 10 sec,
partial discharge < 5 pC
VIOSM(TEST) = 10 kV, 1.2 µs rise time, 50 µs, 50% fall time
Maximum value allowed in the event of a
failure (see Figure 4)
VIO = 500 V
Symbol Characteristic Unit
VIORM
Vpd(m)
I to IV
I to III
I to II
40/105/21
2
849
1592
V peak
V peak
Vpd(m)
Vpd(m)
VIOTM
VIOSM
1274
1019
6000
6250
V peak
V peak
V peak
V peak
TS 130
PS 2.4
RS >109
°C
W
3.0
2.5
2.0
1.5
1.0
0.5
0
0 50 100 150
AMBIENT TEMPERATURE (°C)
Figure 4. Thermal Derating Curve, Dependence of Safety Limiting Values
with Case Temperature per DIN V VDE V 0884-10
RECOMMENDED OPERATING CONDITIONS
Table 17.
Parameter
Operating Temperature Range
Supply Voltage Range1
Input Signal Rise and Fall Times
Symbol
TA
VDD1, VDD2
Value
−40°C to +125°C
3.0 V to 5.5 V
1.0 ms
1 See the DC Correctness and Magnetic Field Immunity section for information
on the immunity to the external magnetic fields.
Rev. A | Page 12 of 22

12 Page





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