AD ADuM5211CRSZ

Dual-Channel Isolators with
Integrated DC-to-DC Converters
ADuM5210/ADuM5211/ADuM5212
Data Sheet
FUNCTIONAL BLOCK DIAGRAM
isoPower integrated, isolated dc-to-dc converter
Regulated 3.15 V to 5.25 V output
Up to 150 mW output power
Dual dc-to-100 Mbps (NRZ) signal isolation channels
Soft start power supply
20-lead SSOP package with 5.3 mm creepage
Supports SPI up to 15 MHz
High temperature operation: 105°C
High common-mode transient immunity: >25 kV/µs
Safety and regulatory approvals
UL recognition (pending)
2500 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice #5A (pending)
VDE certificate of conformity (pending)
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
VIORM = 560 V peak
20
VDD2
19
GNDISO
18
VOA/VIA
17
VOB/VIB
GNDP 5
16
GNDISO
GNDP 6
15
GNDISO
14
NC
13
VSEL
VDD1 1
GNDP
2
2-CHANNEL iCoupler CORE
VIA/VOA 3
ADuM5210/ADuM5211/
ADuM5212
VIB/VOB 4
NC 7
PCS
PDIS 8
VDDP 9
1.25V 12 VISO
GNDP 10
OSC
RECT
REG
11
GNDISO
10980-001
FEATURES
Figure 1. ADuM5210/ADuM5211/ADuM5212
APPLICATIONS
RS-232 transceivers
Power supply start-up bias and gate drives
Isolated sensor interfaces
Industrial PLCs
GENERAL DESCRIPTION
The ADuM5210/ADuM5211/ADuM52121 are dual-channel digital
isolators with isoPower®, an integrated, isolated dc-to-dc converter.
Based on the Analog Devices, Inc., iCoupler® technology, the dc-todc converter provides regulated, isolated power that is adjustable
between 3.15 V and 5.25 V. Input supply voltages can range from
slightly below the required output to significantly higher. Popular
voltage combinations and their associated power levels are shown
in Table 1.
Table 1. Power Levels
Input Voltage (V)
5
5
3.3
Output Voltage (V)
5
3.3
3.3
Output Power (mW)
150
100
66
The ADuM5210/ADuM5211/ADuM5212 eliminate the need for
a separate, isolated dc-to-dc converter in low power, isolated
designs. The iCoupler chip-scale transformer technology is used for
isolated logic signals and for the magnetic components of the dcto-dc converter. The result is a small form factor, total isolation
solution.
isoPower uses high frequency switching elements to transfer
power through its transformer. Take special care during printed
circuit board (PCB) layout to meet emissions standards. See the
AN-0971 Application Note for board layout recommendations.
1
Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents are pending.
Rev. 0
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Technical Support
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ADuM5210/ADuM5211/ADuM5212
Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1
Recommended Operating Conditions .................................... 10
Applications ....................................................................................... 1
Absolute Maximum Ratings ......................................................... 11
Functional Block Diagram .............................................................. 1
ESD Caution................................................................................ 11
General Description ......................................................................... 1
Pin Configurations and Function Descriptions ......................... 12
Revision History ............................................................................... 2
Truth Table .................................................................................. 15
Specifications..................................................................................... 3
Typical Performance Characteristics ........................................... 16
Electrical Characteristics—5 V Primary Input Supply/
5 V Secondary Isolated Supply ................................................... 3
Applications Information .............................................................. 19
Electrical Characteristics—3.3 V Primary Input Supply/
3.3 V Secondary Isolated Supply ................................................ 5
Thermal Analysis ....................................................................... 20
Electrical Characteristics—5 V Primary Input Supply/
3.3 V Secondary Isolated Supply ................................................ 7
EMI Considerations ................................................................... 20
Package Characteristics ............................................................... 9
Regulatory Approvals................................................................... 9
Insulation and Safety-Related Specifications ............................ 9
DIN V VDE V 0884-10 (VDE V 0884-10) Insulation
Characteristics ............................................................................ 10
PCB Layout ................................................................................. 19
Propagation Delay Parameters ................................................. 20
DC Correctness and Magnetic Field Immunity........................... 20
Power Consumption .................................................................. 21
Insulation Lifetime ..................................................................... 22
Outline Dimensions ....................................................................... 23
Ordering Guide .......................................................................... 23
REVISION HISTORY
1/13—Revision 0: Initial Version
Rev. 0 | Page 2 of 24
Data Sheet
ADuM5210/ADuM5211/ADuM5212
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS—5 V PRIMARY INPUT SUPPLY/5 V SECONDARY ISOLATED SUPPLY
All typical specifications are at TA = 25°C, VDD1 = VDD2 = VDDP = 5 V, VSEL resistor network: R1 = 10 kΩ, R2 = 30.9 kΩ between VISO and
GNDISO. Minimum/maximum specifications apply over the entire recommended operation range, which is 4.5 V ≤ VDD1, VDD2, VDDP ≤ 5.5 V
and −40°C ≤ TA ≤ +105°C, unless otherwise noted. Switching specifications are tested with CL = 15 pF and CMOS signal levels, unless
otherwise noted.
Table 2. DC-to-DC Converter Static Specifications
Parameter
DC-TO-DC CONVERTER SUPPLY
Setpoint
Thermal Coefficient
Line Regulation
Load Regulation
Output Ripple
Output Noise
Switching Frequency
Pulse-Width Modulation Frequency
Output Supply
Efficiency at IISO (MAX)
IDDP, No VISO Load
IDDP, Full VISO Load
Thermal Shutdown
Shutdown Temperature
Thermal Hysteresis
Symbol
Min
VISO
VISO (TC)
VISO (LINE)
VISO (LOAD)
VISO (RIP)
VISO (NOISE)
fOSC
fPWM
IISO (MAX)
Typ
Max
5.0
−44
20
1.3
75
200
125
600
3
30
29
6.8
30
IDDP (Q)
IDDP (MAX)
12
154
10
Unit
Test Conditions/Comments
V
μV/°C
mV/V
%
mV p-p
mV p-p
MHz
kHz
mA
%
mA
mA
IISO = 15 mA, R1 = 10 kΩ, R2 = 30.9 kΩ
IISO = 15 mA, VDDP = 4.5 V to 5.5 V
IISO = 3 mA to 27 mA
20 MHz bandwidth, CBO = 0.1 µF||10 µF, IISO = 27 mA
CBO = 0.1 µF||10 µF, IISO = 27 mA
5.5 V > VISO > 4.5 V
IISO = 27 mA
°C
°C
Table 3. Data Channel Supply Current
Parameter
SUPPLY CURRENT
ADuM5210
ADuM5211
ADuM5212
Symbol
1 Mbps—A, B, C Grades
Min
Typ
Max
IDD1
IDD2
IDD1
IDD2
IDD1
IDD2
1.1
2.7
2.1
2.3
2.7
1.1
25 Mbps—B, C Grades
Min
Typ
Max
1.6
4.5
2.7
2.9
4.5
1.6
6.2
4.8
4.9
4.7
4.8
6.2
100 Mbps—C Grade
Min
Typ
Max
Unit
Test Conditions/
Comments
20
9.5
15
15.6
9.5
20
mA
mA
mA
mA
mA
mA
CL = 0 pF
CL = 0 pF
CL = 0 pF
CL = 0 pF
CL = 0 pF
CL = 0 pF
7.0
7.0
6.5
6.5
7.0
7.0
25
15
19
19
15
25
Table 4. Switching Specifications
Parameter
SWITCHING SPECIFICATIONS
Data Rate
Propagation Delay
Pulse Width Distortion
Pulse Width
Propagation Delay Skew
Channel Matching
Codirectional
Opposing Direction
Jitter
Symbol
tPHL, tPLH
PWD
PW
tPSK
Min
A Grade
Typ Max
Min
B Grade
Typ Max
1
50
10
1000
25
35
3
40
tPSKCD
tPSKOD
2
Min
13
C Grade
Typ Max
18
100
24
2
10
38
12
9
5
10
3
6
2
5
2
Rev. 0 | Page 3 of 24
1
Unit
Test Conditions/
Comments
Mbps
ns
ns
ns
ns
Within PWD limit
50% input to 50% output
|tPLH − tPHL|
Within PWD limit
Between any two units
ns
ns
ns
ADuM5210/ADuM5211/ADuM5212
Data Sheet
Table 5. Input and Output Characteristics
Parameter
DC SPECIFICATIONS
Logic High Input Threshold
Symbol
Min
VIH
0.7 VISO,
0.7 VDD1
Logic Low Input Threshold
VIL
Logic High Output Voltages
VOH
Logic Low Output Voltages
Undervoltage Lockout
Positive Going Threshold
Negative Going Threshold
Hysteresis
Supply Current per Channel
Quiescent Input Supply Current
Quiescent Output Supply Current
Dynamic Input Supply Current
Dynamic Output Supply Current
Input Currents per Channel
AC SPECIFICATIONS
Output Rise/Fall Time
Common-Mode Transient Immunity 1
Refresh Rate
1
Typ
Max
VOL
V
VDD1, VDD2
V
IOx = −20 µA, VIx = VIxH
VDD1 − 0.2,
VDD2 − 0.2
0.0
0.2
V
IOx = −4 mA, VIx = VIxH
V
V
IOx = 20 µA, VIx = VIxL
IOx = 4 mA, VIx = VIxL
VDD1, VDD2 ,VDDP supply
0.1
0.4
VUV+
VUV−
VUVH
2.6
2.4
0.2
IDDI(Q)
IDDO(Q)
IDDI(D)
IDDO(D)
II
−10
0.54
1.6
0.09
0.04
+0.01
tR/tF
|CM|
25
2.5
35
ns
kV/µs
1.6
µs
tr
Test Conditions/Comments
V
0.3 VISO,
0.3 VDD1
VDD1 − 0.1,
VDD2 − 0.1
VDD1 − 0.4,
VDD2 − 0.4
Unit
V
V
V
0.8
2.0
+10
mA
mA
mA/Mbps
mA/Mbps
µA
0 V ≤ VIx ≤ VDDx
10% to 90%
VIx = VDD1 or VISO, VCM = 1000 V,
transient magnitude = 800 V
|CM| is the maximum common-mode voltage slew rate that can be sustained while maintaining VOx > 0.8 × VDD1 or 0.8 × VISO for a high input or VOx < 0.8 × VDD1 or 0.8 × VISO for a
low input. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges.
Rev. 0 | Page 4 of 24
Data Sheet
ADuM5210/ADuM5211/ADuM5212
ELECTRICAL CHARACTERISTICS—3.3 V PRIMARY INPUT SUPPLY/3.3 V SECONDARY ISOLATED SUPPLY
All typical specifications are at TA = 25°C, VDD1 =VDD2 = VDDP = 3.3 V, VSEL resistor network: R1 = 10 kΩ, R2 = 16.9 kΩ between VISO and
GNDISO. Minimum/maximum specifications apply over the entire recommended operation range, which is 3.0 V ≤ VDD1, VDD2, VDDP ≤
3.6 V, and −40°C ≤ TA ≤ +105°C, unless otherwise noted. Switching specifications are tested with CL = 15 pF and CMOS signal levels,
unless otherwise noted.
The digital isolator channels and the power section work independently, and under the operating voltages in this section, there may not
be sufficient current from the VISO to run both data channels at the maximum data rate. Verify that the application is within the power
capability of VISO if that supply is providing power to VDD2.
Table 6. DC-to-DC Converter Static Specifications
Parameter
DC-TO-DC CONVERTER SUPPLY
Setpoint
Thermal Coefficient
Line Regulation
Load Regulation
Output Ripple
Output Noise
Switching Frequency
Pulse-Width Modulation Frequency
Output Supply
Efficiency at IISO (MAX)
IDDP, No VISO Load
IDDP, Full VISO Load
Thermal Shutdown
Shutdown Temperature
Thermal Hysteresis
Symbol
Min
VISO
VISO (TC)
VISO (LINE)
VISO (LOAD)
VISO (RIP)
VISO (NOISE)
fOSC
fPWM
IISO (MAX)
Typ
3.3
−26
20
1.3
50
130
125
600
Max
3
20
27
3.3
77
IDDP (Q)
IDDP (MAX)
10.5
154
10
Unit
Test Conditions/Comments
V
μV/°C
mV/V
%
mV p-p
mV p-p
MHz
kHz
mA
%
mA
mA
IISO = 10 mA, R1 = 10 kΩ, R2 = 16.9 kΩ
IISO = 20 mA
IISO = 10 mA, VDDP = 3.0 V to 3.6 V
IISO = 2 mA to 18 mA
20 MHz bandwidth, CBO = 0.1 µF||10 µF, IISO = 18 mA
CBO = 0.1 µF||10 µF, IISO = 18 mA
3.6 V > VISO > 3 V
IISO = 18 mA
°C
°C
Table 7. Data Channel Supply Current
Parameter
SUPPLY CURRENT
ADuM5210
ADuM5211
ADuM5212
Symbol
1 Mbps—A, B, C Grades
Min Typ
Max
IDD1
IDD2
IDD1
IDD2
IDD1
IDD2
0.75
2.0
1.6
1.7
2.0
0.75
25 Mbps—B, C Grades
Min Typ
Max
5.1
2.7
3.8
3.9
2.7
5.1
1.4
3.5
2.1
2.3
3.5
1.4
100 Mbps—C Grade
Min
Typ
Max
9.0
4.6
5.0
6.2
4.6
9.0
17
4.8
11
11
4.8
17
23
9
15
15
9
23
Unit
Test Conditions/
Comments
mA
mA
mA
mA
mA
mA
CL = 0 pF
CL = 0 pF
CL = 0 pF
CL = 0 pF
CL = 0 pF
CL = 0 pF
Table 8. Switching Specifications
Parameter
SWITCHING SPECIFICATIONS
Data Rate
Propagation Delay
Pulse Width Distortion
Pulse Width
Propagation Delay Skew
Channel Matching
Codirectional
Opposing Direction
Jitter
Symbol
tPHL, tPLH
PWD
PW
tPSK
A Grade
B Grade
Min Typ Max Min Typ Max
1
50
10
1000
25
35
3
40
tPSKCD
tPSKOD
2
C Grade
Min Typ Max
20
25
100
33
2.5
10
38
16
12
5
10
3
6
2.5
5
2
Rev. 0 | Page 5 of 24
1
Unit
Test Conditions/Comments
Mbps
ns
ns
ns
ns
Within PWD limit
50% input to 50% output
|tPLH − tPHL|
Within PWD limit
Between any two units
ns
ns
ns
ADuM5210/ADuM5211/ADuM5212
Data Sheet
Table 9. Input and Output Characteristics
Parameter
DC SPECIFICATIONS
Logic High Input Threshold
Min
VIH
0.7 VISO, 0.7
VDD1
Logic Low Input Threshold
VIL
Logic High Output Voltages
VOH
Logic Low Output Voltages
Undervoltage Lockout
Positive Going Threshold
Negative Going Threshold
Hysteresis
Supply Current per Channel
Quiescent Input Supply Current
Quiescent Output Supply Current
Dynamic Input Supply Current
Dynamic Output Supply Current
Input Currents per Channel
AC SPECIFICATIONS
Output Rise/Fall Time
Common-Mode Transient Immunity1
Refresh Rate
1
Symbol
Typ
Max
VOL
V
VDD1, VDD2
V
IOx = −20 µA, VIx = VIxH
VDD1 − 0.2,
VDD2 − 0.2
0.0
0.2
V
IOx = −4 mA, VIx = VIxH
V
V
IOx = 20 µA, VIx = VIxL
IOx = 4 mA, VIx = VIxL
VDD1, VDD2 ,VDDP supply
0.1
0.4
VUV+
VUV−
VUVH
2.6
2.4
0.2
IDDI(Q)
IDDO(Q)
IDDI(D)
IDDO(D)
II
−10
0.4
1.2
0.08
0.015
+0.01
tR/tF
|CM|
25
3
35
ns
kV/µs
1.6
µs
tr
Test Conditions/Comments
V
0.3 VISO,
0.3 VDD1
VDD1 − 0.1,
VDD2 − 0.1
VDD1 − 0.4,
VDD2 − 0.4
Unit
V
V
V
0.6
1.7
+10
mA
mA
mA/Mbps
mA/Mbps
µA
0 V ≤ VIx ≤ VDDx
10% to 90%
VIx = VDD1 or VISO, VCM = 1000 V,
transient magnitude = 800 V
|CM| is the maximum common-mode voltage slew rate that can be sustained while maintaining VOx > 0.8 × VDD1 or 0.8 × VISO for a high input or VOx < 0.8 × VDD1 or 0.8 × VISO for a
low input. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges.
Rev. 0 | Page 6 of 24
Data Sheet
ADuM5210/ADuM5211/ADuM5212
ELECTRICAL CHARACTERISTICS—5 V PRIMARY INPUT SUPPLY/3.3 V SECONDARY ISOLATED SUPPLY
All typical specifications are at TA = 25°C, VDD1 = VDDP = 5 V, VDD2 = 3.3 V, VSEL resistor network: R1 = 10 kΩ, R2 = 16.9 kΩ between VISO
and GNDISO. Minimum/maximum specifications apply over the entire recommended operation range which is 4.5 V ≤ VDD1, VDDP ≤ 5.5 V,
3.0 V ≤ VDD2 ≤ 3.6 V, and −40°C ≤ TA ≤ +105°C, unless otherwise noted. Switching specifications are tested with CL = 15 pF and CMOS
signal levels, unless otherwise noted.
Table 10. DC-to-DC Converter Static Specifications
Parameter
DC-TO-DC CONVERTER SUPPLY
Setpoint
Thermal Coefficient
Line Regulation
Load Regulation
Output Ripple
Output Noise
Switching Frequency
Pulse Width Modulation Frequency
Output Supply
Efficiency at IISO (MAX)
IDDP, No VISO Load
IDDP, Full VISO Load
Thermal Shutdown
Shutdown Temperature
Thermal Hysteresis
Symbol
Min
VISO
VISO (TC)
VISO (LINE)
VISO (LOAD)
VISO (RIP)
VISO (NOISE)
fOSC
fPWM
IISO (MAX)
Typ
Max
3.3
−26
20
1.3
50
130
125
600
3
30
24
3.2
85
IDDP (Q)
IDDP (MAX)
8
154
10
Unit
Test Conditions/Comments
V
μV/°C
mV/V
%
mV p-p
mV p-p
MHz
kHz
mA
%
mA
mA
IISO = 15 mA, R1 = 10 kΩ, R2 = 16.9 kΩ
IISO = 15 mA, VDDP = 4.5 V to 5.5 V
IISO = 3 mA to 27 mA
20 MHz bandwidth, CBO = 0.1 µF||10 µF, IISO = 27 mA
CBO = 0.1 µF||10 µF, IISO = 27 mA
3.6 V > VISO > 3 V
IISO = 27 mA
°C
°C
Table 11. Data Channel Supply Current
Parameter
SUPPLY CURRENT
ADuM5210
ADuM5211
ADuM5212
Symbol
1 Mbps—A, B, C Grades
Min
Typ
Max
IDD1
IDD2
IDD1
IDD2
IDD1
IDD2
1.1
2.0
2.1
1.7
2.0
1.1
25 Mbps—B, C Grades
Min Typ
Max
6.2
2.7
4.9
3.9
2.7
6.2
1.6
3.5
2.7
2.3
3.5
1.6
100 Mbps—C Grade
Min Typ Max
20
4.8
15
11
4.8
20
7.0
4.6
6.5
6.2
4.6
7.0
25
9.0
19
15
9.0
25
Unit
Test Conditions/
Comments
mA
mA
mA
mA
mA
mA
CL = 0 pF
CL = 0 pF
CL = 0 pF
CL = 0 pF
CL = 0 pF
CL = 0 pF
Table 12. Switching Specifications
7 Codirectional channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on the same side of the isolation barrier. Opposing-directional channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on opposing sides of the isolation barrier.
Parameter
SWITCHING SPECIFICATIONS
Data Rate
Propagation Delay
Pulse Width Distortion
Pulse Width
Propagation Delay Skew
Channel Matching
Codirectional
Opposing Direction
Jitter
Symbol
tPHL, tPLH
PWD
PW
tPSK
Min
A Grade
Typ Max
Min
B Grade
Typ Max
1
50
10
1000
25
35
3
40
tPSKCD
tPSKOD
2
Min
13
C Grade
Typ Max
20
100
26
2.5
10
38
16
12
5
10
3
6
2
5
2
Rev. 0 | Page 7 of 24
1
Unit
Test Conditions/
Comments
Mbps
ns
ns
ns
ns
Within PWD limit
50% input to 50% output
|tPLH − tPHL|
Within PWD limit
Between any two units
ns
ns
ns
ADuM5210/ADuM5211/ADuM5212
Data Sheet
Table 13. Input and Output Characteristics
Parameter
DC SPECIFICATIONS
Logic High Input Threshold
Min
VIH
0.7 VISO,
0.7 VDD1
Logic Low Input Threshold
VIL
Logic High Output Voltages
VOH
Logic Low Output Voltages
Undervoltage Lockout
Positive Going Threshold
Negative Going Threshold
Hysteresis
Supply Current per Channel
Quiescent Input Supply Current
Quiescent Output Supply Current
Dynamic Input Supply Current
Dynamic Output Supply Current
Input Currents per Channel
AC SPECIFICATIONS
Output Rise/Fall Time
Common-Mode Transient Immunity1
Refresh Rate
1
Symbol
Typ
Max
VDD1 − 0.1,
VDD2 − 0.1
VDD1 − 0.4,
VDD2 − 0.4
V
VDD1, VDD2
V
IOx = −20 µA, VIx = VIxH
VDD1 − 0.2,
VDD2 − 0.2
0.0
0.2
V
IOx = −4 mA, VIx = VIxH
V
V
IOx = 20 µA, VIx = VIxL
IOx = 4 mA, VIx = VIxL
VDD1, VDD2 ,VDDP supply
0.1
0.4
VUV+
VUV−
VUVH
2.6
2.4
0.2
IDDI(Q)
IDDO(Q)
IDDI(D)
IDDO(D)
II
−10
0.54
1.2
0.09
0.02
+0.01
tR/tF
|CM|
25
2.5
35
ns
kV/µs
1.6
µs
tr
Test Conditions/Comments
V
0.3 VISO,
0.3 VDD1
VOL
Unit
V
V
V
0.75
2.0
+10
mA
mA
mA/Mbps
mA/Mbps
µA
0 V ≤ VIx ≤ VDDx
10% to 90%
VIx = VDD1 or VISO, VCM = 1000 V,
transient magnitude = 800 V
|CM| is the maximum common-mode voltage slew rate that can be sustained while maintaining VOx > 0.8 × VDD1 or 0.8 × VISO for a high input or VOx < 0.8 × VDD1 or 0.8 × VISO for a
low input. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges.
Rev. 0 | Page 8 of 24
Data Sheet
ADuM5210/ADuM5211/ADuM5212
PACKAGE CHARACTERISTICS
Table 14. Thermal and Isolation Characteristics
Parameter
Resistance (Input to Output) 1
Capacitance (Input to Output)1
Input Capacitance 2
IC Junction-to-Ambient Thermal Resistance
Symbol
RI-O
CI-O
CI
θJA
Min
Typ
1012
2.2
4.0
50
Max
Unit
Ω
pF
pF
°C/W
Test Conditions/Comments
f = 1 MHz
Thermocouple located at center of package underside,
test conducted on 4-layer board with thin traces 3
The device is considered a 2-terminal device: Pin 1 through Pin 10 are shorted together, and Pin 11 through Pin 20 are shorted together.
Input capacitance is from any input data pin to ground.
3
See the Thermal Analysis section for thermal model definitions.
1
2
REGULATORY APPROVALS
Table 15.
UL (Pending) 1
Recognized under 1577 Component
Recognition Program1
Single Protection, 2500 V RMS
Isolation Voltage
File E214100
CSA (Pending)
Approved under CSA Component
Acceptance Notice #5A
Basic insulation per CSA 60950-1-03
and IEC 60950-1, 400 V rms (565 V peak)
maximum working voltage
File 205078
VDE (Pending)2
Certified according to DIN V VDE V 0884-10
(VDE V 0884-10):2006-12 2
Reinforced insulation, 560 V peak
File 2471900-4880-0001
In accordance with UL 1577, each ADuM5210/ADuM5211/ADuM5212 is proof tested by applying an insulation test voltage ≥ 3000 V rms for 1 second (current leakage
detection limit = 10 µA).
2
In accordance with DIN V VDE V 0884-10, each ADuM5210/ADuM5211/ADuM5212 is proof tested by applying an insulation test voltage ≥1590 V peak for 1 second
(partial discharge detection limit = 5 pC). The * marking branded on the component designates DIN V VDE V 0884-10 approval.
1
INSULATION AND SAFETY-RELATED SPECIFICATIONS
Table 16. Critical Safety-Related Dimensions and Material Properties
Parameter
Rated Dielectric Insulation Voltage
Minimum External Air Gap (Clearance)
Symbol Value
2500
L(I01)
5.3
Unit Test Conditions/Comments
V rms 1-minute duration
mm
Measured from input terminals to output terminals,
shortest distance through air
5.3
mm
Measured from input terminals to output terminals,
shortest distance path along body
0.017 min mm
Distance through insulation
>400
V
DIN IEC 112/VDE 0303, Part 1
II
Material group (DIN VDE 0110, 1/89, Table 1)
Minimum External Tracking (Creepage)
L(I02)
Minimum Internal Gap (Internal Clearance)
Tracking Resistance (Comparative Tracking Index)
Isolation Group
CTI
Rev. 0 | Page 9 of 24
ADuM5210/ADuM5211/ADuM5212
Data Sheet
DIN V VDE V 0884-10 (VDE V 0884-10) INSULATION CHARACTERISTICS
These isolators are suitable for reinforced electrical isolation only within the safety limit data. Maintenance of the safety data is ensured by
the protective circuits. The asterisk (*) marking on packages denotes DIN V VDE V 0884-10 approval.
Table 17. VDE Characteristics
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
Test Conditions/Comments
VIORM × 1.875 = Vpd(m), 100% production test,
tini = tm = 1 sec, partial discharge < 5 pC
Input-to-Output Test Voltage, Method a
After Environmental Tests Subgroup 1
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
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
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 2)
VIO = 500 V
Symbol
Characteristic
Unit
VIORM
Vpd(m)
I to IV
I to III
I to II
40/105/21
2
560
1050
V peak
V peak
Vpd(m)
840
V peak
Vpd(m)
672
V peak
VIOTM
VIOSM
3535
4000
V peak
V peak
TS
IS1
RS
150
2.5
>109
°C
W
Ω
3.0
SAFE LIMITING POWER (W)
2.5
2.0
1.5
1.0
0
0
50
100
150
AMBIENT TEMPERATURE (°C)
200
10980-002
0.5
Figure 2. Thermal Derating Curve, Dependence of Safety Limiting Values on Case Temperature, per DIN V VDE V 0884-10
RECOMMENDED OPERATING CONDITIONS
Table 18.
Parameter
Operating Temperature 1
Supply Voltages 2
VDDP at VISO = 3.0 V to 3.6 V
VDDP at VISO = 4.5 V to 5.5 V
VDD1, VDD2
1
2
Symbol
TA
Min
−40
Max
+105
Unit
°C
VDDP
3.0
4.5
2.7
5.5
5.5
5.5
V
V
V
VDD1, VDD2
Operation at 105°C requires reduction of the maximum load current as specified in Table 19.
Each voltage is relative to its respective ground.
Rev. 0 | Page 10 of 24
Data Sheet
ADuM5210/ADuM5211/ADuM5212
ABSOLUTE MAXIMUM RATINGS
Ambient temperature = 25°C, unless otherwise noted.
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
Table 19.
Parameter
Storage Temperature (TST)
Ambient Operating Temperature (TA)
Supply Voltages (VDDP, VDD1, VDD2, VISO) 1
VISO Supply Current 2
TA = −40°C to +105°C
Input Voltage (VIA, VIB, PDIS, VSEL)1, 3
Output Voltage ( VOA, VOB )1, 3
Average Output Current Per Data
Output Pin 4
Common-Mode Transients 5
Rating
−55°C to +150°C
−40°C to +105°C
−0.5 V to +7.0 V
Table 20. Maximum Continuous Working Voltage
Supporting 50-Year Minimum Lifetime1
30 mA
−0.5 V to VDDI + 0.5 V
−0.5 V to VDDO + 0.5 V
−10 mA to +10 mA
−100 kV/µs to +100 kV/µs
All voltages are relative to their respective ground.
The VISO provides current for dc and dynamic loads on the VISO I/O channels.
This current must be included when determining the total VISO supply
current. For ambient temperatures between 85°C and 105°C, maximum
allowed current is reduced.
3
VDDI and VDDO refer to the supply voltages on the input and output sides of a
given channel, respectively. See the PCB Layout section.
4
See Figure 2 for the maximum rated current values for various temperatures.
5
Refers to common-mode transients across the insulation barrier. Commonmode transients exceeding the absolute maximum ratings may cause latch-up
or permanent damage.
1
2
Parameter
AC Voltage
Bipolar Waveform
Max
Unit
560
V peak
Unipolar Waveform
DC Voltage
|DC Peak Voltage|
560
V peak
560
V peak
1
Applicable
Certification
All certifications,
50-year operation
Refers to the continuous voltage magnitude imposed across the isolation
barrier. See the Insulation Lifetime section for more information.
ESD CAUTION
Rev. 0 | Page 11 of 24
ADuM5210/ADuM5211/ADuM5212
Data Sheet
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
VDD1 1
20 VDD2
GNDP 2
19 GNDISO
VIA 3
GNDP 5
GNDP 6
NC 7
18 VOA
ADuM5210
TOP VIEW
(Not to Scale)
17 VOB
16 GNDISO
15 GNDISO
14 NC
PDIS 8
13 VSEL
VDDP 9
12
GNDP 10
VISO
11 GNDISO
NOTES
1. PINS LABELED NC CAN BE ALLOWED
TO FLOAT, BUT IT IS BETTER TO
CONNECT THESE PINS TO GROUND.
AVOID ROUTING HIGH SPEED SIGNALS
THROUGH THESE PINS BECAUSE NOISE
COUPLING MAY RESULT.
10980-003
VIB 4
Figure 3. ADuM5210 Pin Configuration
Table 21. ADuM5210 Pin Function Descriptions
Pin No.
1
Mnemonic Description
VDD1
Power Supply for the Side 1 Logic Circuits of the Device. It is independent of VDDP and can operate between 3.0 V
and 5.5 V.
2, 5, 6, 10
GNDP
Ground Reference for Isolator Side 1. All of these pins are internally connected, and it is recommended that all GNDP
pins be connected to a common ground.
3
VIA
Logic Input A.
4
VIB
Logic Input B.
7, 14
NC
This pin is not connected internally (see Figure 3).
8
PDIS
Power Disable. When this pin is tied to a logic low, the power converter is active; when tied to a logic high, the
power supply enters a low power standby mode.
9
VDDP
Primary isoPower Supply Voltage, 3.0 V to 5.5 V.
11, 15, 16, 19 GNDISO
Ground Reference for Isolator Side 2. All of these pins are internally connected, and it is recommended that all GNDISO
pins be connected to a common ground.
12
VISO
Secondary Supply Voltage Output for External Loads, 3.3 V (VSEL Low) or 5.0 V (VSEL High).
13
VSEL
Output Voltage Select. Provide a thermally matched resistor network between VISO and GNDISO to divide the
required output voltage to match the 1.25 V reference voltage. VISO voltage can be programmed up to 20%
higher or 75% lower than VDDP but must be within the allowed output voltage range.
17
VOB
Logic Output B.
18
VOA
Logic Output A.
20
VDD2
Power Supply for the Side 2 Logic Circuits of the Device. It is independent of VISO and can operate between 3.0 V
and 5.5 V.
Rev. 0 | Page 12 of 24
Data Sheet
ADuM5210/ADuM5211/ADuM5212
VDD1 1
20
VDD2
GNDP 2
19
GNDISO
VOA 3
18
VIA
VIB 4
17
VOB
16
GNDISO
GNDP 6
ADuM5211
TOP VIEW
(Not to Scale)
15
GNDISO
NC 7
14
NC
PDIS 8
13
VSEL
VDDP 9
12
GNDP 10
11
VISO
GNDISO
NOTES
1. PINS LABELED NC CAN BE ALLOWED
TO FLOAT, BUT IT IS BETTER TO
CONNECT THESE PINS TO GROUND.
AVOID ROUTING HIGH SPEED SIGNALS
THROUGH THESE PINS BECAUSE
NOISE COUPLING MAY RESULT.
10980-005
GNDP 5
Figure 4. ADuM5211 Pin Configuration
Table 22. ADuM5211 Pin Function Descriptions
Pin No.
1
Mnemonic Description
VDD1
Power Supply for the Side 1 Logic Circuits of the Device. It is independent of VDDP and can operate between 3.0 V
and 5.5 V.
2, 5, 6, 10
GNDP
Ground Reference for Isolator Side 1. All of these pins are internally connected, and it is recommended that all GNDP
pins be connected to a common ground.
3
VOA
Logic Output A.
4
VIB
Logic Input B.
7, 14
NC
This pin is not connected internally (see Figure 4).
8
PDIS
Power Disable. When this pin is tied to a logic low, the power converter is active; when tied to a logic high, the
power supply enters a low power standby mode.
9
VDDP
Primary isoPower Supply Voltage, 3.0 V to 5.5 V.
11, 15, 16,19 GNDISO
Ground Reference for Isolator Side 2. All of these pins are internally connected, and it is recommended that all GNDISO
pins be connected to a common ground.
12
VISO
Secondary Supply Voltage Output for External Loads, 3.3 V (VSEL Low) or 5.0 V (VSEL High).
13
VSEL
Output Voltage Select. Provide a thermally matched resistor network between VISO and GNDISO to divide the
required output voltage to match the 1.25 V reference voltage. VISO voltage can be programmed up to 20%
higher or 75% lower than VDDP but must be within the allowed output voltage range.
17
VOB
Logic Output B.
18
VIA
Logic Input A.
20
VDD2
Power Supply for the Side 2 Logic Circuits of the Device. It is independent of VISO and can operate between 3.0 V
and 5.5 V.
Rev. 0 | Page 13 of 24
ADuM5210/ADuM5211/ADuM5212
Data Sheet
VDD1 1
20 VDD2
GNDP 2
19 GNDISO
VOA 3
GNDP 5
GNDP 6
NC 7
18 VIA
ADuM5212
TOP VIEW
(Not to Scale)
17 VIB
16 GNDISO
15 GNDISO
14 NC
PDIS 8
13 VSEL
VDDP 9
12
GNDP 10
VISO
11 GNDISO
NOTES
1. PINS LABELED NC CAN BE ALLOWED
TO FLOAT OR CAN BE CONNECTED
TO THE GROUND. AVOID CONNECTING
THEM TO HIGH SPEED SIGNALS
TO MINIMIZE CAPACITIVE COUPLING
OF NOISE.
10980-007
VOB 4
Figure 5. ADuM5212 Pin Configuration
Table 23. ADuM5212 Pin Function Descriptions
Pin No.
1
Mnemonic Description
VDD1
Power Supply for the Side 1 Logic Circuits of the Device. It is independent of VDDP and can operate between 3.0 V
and 5.5 V.
2, 5, 6, 10
GNDP
Ground Reference for Isolator Side 1. All of these pins are internally connected, and it is recommended that all GNDP
pins be connected to a common ground.
3
VOA
Logic Output A.
4
VOB
Logic Output B.
7, 14
NC
This pin is not connected internally (see Figure 5).
8
PDIS
Power Disable. When this pin is tied to a logic low, the power converter is active; when tied to a logic high, the
power supply enters a low power standby mode.
9
VDDP
Primary isoPower Supply Voltage, 3.0 V to 5.5 V.
11, 15, 16, 19 GNDISO
Ground Reference for Isolator Side 2. All of these pins are internally connected, and it is recommended that all GNDISO
pins be connected to a common ground.
12
VISO
Secondary Supply Voltage Output for External Loads, 3.3 V (VSEL Low) or 5.0 V (VSEL High).
13
VSEL
Output Voltage Select. Provide a thermally matched resistor network between VISO and GNDISO to divide the
required output voltage to match the 1.25 V reference voltage. VISO voltage can be programmed up to 20%
higher or 75% lower than VDDP but must be within the allowed output voltage range.
17
VIB
Logic Input B.
18
VIA
Logic Input A.
20
VDD2
Power Supply for the Side 2 Logic Circuits of the Device. It is independent of VISO and can operate between 3.0 V
and 5.5 V.
Rev. 0 | Page 14 of 24
Data Sheet
ADuM5210/ADuM5211/ADuM5212
TRUTH TABLE
Table 24. Power Section Truth Table (Positive Logic)
VDDP (V)
5
5
3.3
3.3
5
5
3.3
3.3
VSEL Input
R1 = 10 kΩ, R2 = 30.9 kΩ,
R1 = 10 kΩ, R2 = 30.9 kΩ,
R1 = 10 kΩ, R2 = 16.9 kΩ
R1 = 10 kΩ, R2 = 16.9 kΩ
R1 = 10 kΩ, R2 = 30.9 kΩ,
R1 = 10 kΩ, R2 = 30.9 kΩ,
R1 = 10 kΩ, R2 = 16.9 kΩ
R1 = 10 kΩ, R2 = 16.9 kΩ
PDIS Input
Low
High
Low
High
Low
High
Low
High
VISO Output (V)
5
0
3.3
0
3.3
0
5
0
Notes
Configuration not recommended
Table 25. Data Section Truth Table (Positive Logic)
VDDI State 1
Powered
Powered
X2
Unpowered
Unpowered
VIx Input1
High
Low
X2
Low
High
VDDO State1
Powered
Powered
Unpowered
Powered
Powered
VOx Output1
High
Low
Z3
Low
Indeterminate
Notes
Normal operation, data is high
Normal operation, data is low
Output is off
Output default low
If a high level is applied to an input when no supply is present, then it
can parasitically power the input side causing unpredictable operation
The references to I and O in this table refer to the input side and output side of a given data path and the associated power supply.
X = don’t care.
3
Z = high impedance state.
1
2
Rev. 0 | Page 15 of 24
ADuM5210/ADuM5211/ADuM5212
Data Sheet
TYPICAL PERFORMANCE CHARACTERISTICS
2.0
1.8
0.25
0.20
0.15
0.10
0.45
0.40
1.6
0.35
1.4
0.30
1.0
0.25
0.8
0.20
0.6
0.15
0.4
0.05
VDD1 = VDDP = 5V/VDD2 = 5V
VDD1 = VDDP = 5V/VDD2 = 3.3V
VDD1 = VDDP = 3.3V/VDD2 = 3.3V
0
0.02
0.08
0.06
0.04
0.10
0.2
LOAD CURRENT (A)
Figure 6. Typical Power Supply Efficiency at 5 V/5 V, 5 V/3.3 V, and 3.3 V/3.3 V
0.05
0
3.0
10980-004
0
3.5
4.0
4.5
VDD1 (V)
5.0
5.5
0
6.0
Figure 9. Typical Short-Circuit Input Current and Power vs. VDD1 Supply Voltage
VISO (100mV/DIV)
450
350
300
250
200
150
90% LOAD
VDD1 = VDDP = 5V/VDD2 = 5V
VDD1 = VDDP = 5V/VDD2 = 3.3V
VDD1 = VDDP = 3.3V/VDD2 = 3.3V
10% LOAD
0
0
10
20
30
40
IISO (mA)
(1ms/DIV)
10980-010
100
10980-006
POWER DISSIPATION (mW)
400
50
Figure 10. Typical VISO Transient Load Response, 5 V Output,
10% to 90% Load Step
Figure 7. Typical Total Power Dissipation vs. IISO
35
VISO (100mV/DIV)
VDD1 = VDDP = 5V/VDD2 = 5V
VDD1 = VDDP = 5V/VDD2 = 3.3V
VDD1 = VDDP = 3.3V/VDD2 = 3.3V
30
IISO (mA)
25
20
15
90% LOAD
10
10% LOAD
0
50
IDDP (mA)
75
100
(1ms/DIV)
10980-008
25
Figure 11. Typical Transient Load Response, 3 V Output,
10% to 90% Load Step
Figure 8. Typical Isolated Output Supply Current, IISO, as a Function
of External Load, at 5 V/5 V, 5 V/3.3 V, and 3.3 V/3.3 V
Rev. 0 | Page 16 of 24
10980-011
5
0
IDDP CURRENT (A)
POWER DISSIPATION (W)
EFFICIENCY (%)
0.30
0.50
IDDP
POWER DISSIPATION
10980-009
0.35
Data Sheet
ADuM5210/ADuM5211/ADuM5212
VISO (100mV/DIV)
5.0
4.0
3.5
3.0
30mA LOAD
20mA LOAD
10mA LOAD
10980-013
2.5
(1ms/DIV)
2.0
3.0
3.5
4.0
4.5
5.0
5.5
6.0
OUTPUT VOLTAGE (V)
10980-115
MINIMUM INPUT VOLTAGE (V)
4.5
Figure 15. Relationship Between Output Voltage and Required Input Voltage,
Under Load, to Maintain >80% Duty Factor in the PWM
Figure 12. Typical Transient Load Response, 5 V Input, 3.3 V Output,
10% to 90% Load Step
4.970
500
450
VDD1 = VDDP = 5V/VDD2 = 5V
VDD1 = VDDP = 5V/VDD2 = 3.3V
POWER DISSIPATION (mW)
4.965
VISO (V)
4.960
4.955
4.950
400
350
300
250
200
4.945
0
1
2
3
4
TIME (µs)
100
–40
10980-014
4.940
Figure 13. Typical VISO = 5 V Output Voltage Ripple at 90% Load
–20
0
40
60
80
20
AMBIENT TEMPERATURE (°C)
100
120
10980-116
150
Figure 16. Power Dissipation with a 30 mA Load vs. Temperature
3.280
500
450
POWER DISSIPATION (mW)
3.276
3.274
3.272
VDD1 = 5V/VDD2 = 5V
VDD1 = 3.3V/VDD2 = 3.3V
VDDP = 5V/VDD2 3.3V
400
350
300
250
200
0
1
2
3
4
TIME (µs)
100
–40
–20
0
60
80
20
40
AMBIENT TEMPERATURE (°C)
100
120
Figure 17. Power Dissipation with a 20 mA Load vs. Temperature
Figure 14. Typical VISO = 3.3 V Output Voltage Ripple at 90% Load
Rev. 0 | Page 17 of 24
10980-117
150
3.270
10980-015
VISO (V)
2.278
ADuM5210/ADuM5211/ADuM5212
Data Sheet
10
20
SUPPLY CURRENT (mA)
SUPPLY CURRENT (mA)
8
6
5V
3.3V
4
15
5V
10
3V
5
0
10
20
30
40
50
60
70
80
90
100
DATA RATE (Mbps)
0
10980-016
0
Figure 18. Typical Supply Current per Input Channel vs. Data Rate
for 5 V and 3.3 V Operation
0
10
20
30
40
50
60
70
80
90
100
DATA RATE (Mbps)
10980-019
2
Figure 21. Typical ADuM5210 VDD1 or ADuM5212 VDD2 Supply Current vs.
Data Rate for 5 V and 3.3 V Operation
10
20
SUPPLY CURRENT (mA)
SUPPLY CURRENT (mA)
8
6
4
5V
15
10
5V
5
2
0
10
20
30
40
50
60
70
80
90
100
DATA RATE (Mbps)
0
10980-017
0
Figure 19. Typical Supply Current per Output Channel vs. Data Rate
for 5 V and 3.3 V Operation (No Output Load)
0
10
20
30
40
50
60
70
80
90
100
DATA RATE (Mbps)
10980-020
3.3V
3.3V
Figure 22. Typical ADuM5210 VDD2 or ADuM5212 VDD2 Supply Current vs.
Data Rate for 5 V and 3.3 V Operation
20
10
SUPPLY CURRENT (mA)
6
5V
4
3.3V
15
10
5V
5
2
3.3V
0
10
20
30
40
50
60
70
80
90
100
DATA RATE (Mbps)
Figure 20. Typical Supply Current per Output Channel vs. Data Rate
for 5 V and 3.3 V Operation (15 pF Output Load)
0
10980-018
0
0
10
20
30
40
50
60
DATA RATE (Mbps)
70
80
90
100
10980-012
SUPPLY CURRENT (mA)
8
Figure 23. Typical ADuM5211 VDD1 or VDD2 Supply Current vs. Data Rate for
5 V and 3.3 V Operation
Rev. 0 | Page 18 of 24
Data Sheet
ADuM5210/ADuM5211/ADuM5212
APPLICATIONS INFORMATION
PDIS
8
VDDP
10µF
+
GNDP
0.1µF
9
10
Figure 24. VDDP Bias and Bypass Components
13
12
11
(1)
VSEL
R2
30kΩ
VISO
GNDISO
0.1µF
R1
10kΩ
10µF
+
10980-023
Figure 25. VISO Bias and Bypass Components
where:
R1 is a resistor between VSEL and GNDISO.
R2 is a resistor between VSEL and VISO.
Because the output voltage can be adjusted continuously
there are an infinite number of operating conditions. This
data sheet addresses three discrete operating conditions in the
Specifications tables. Many other combinations of input and
output voltage are possible; Figure 15 depicts the supported
voltage combinations at room temperature. Figure 15 was
generated by fixing the VISO load and decreasing the input
voltage until the PWM was at 80% duty cycle. Each of the
curves represents the minimum input voltage that is required
for operation under this criterion. For example, if the application requires 30 mA of output current at 5 V, the minimum
input voltage at VDDP is 4.25 V. Figure 15 also illustrates why
the VDDP = 3.3 V input and VISO = 5 V configuration is not
recommended. Even at 10 mA of output current, the PWM
cannot maintain less than 80% duty factor, leaving no margin
to support load or temperature variations.
Typically, the ADuM5210/ADuM5211/ADuM5212 dissipate
about 17% more power between room temperature and maximum temperature; therefore, the 20% PWM margin covers
temperature variations.
The ADuM5210/ADuM5211/ADuM5212 implement
undervoltage lockout (UVLO) with hysteresis on the primary
and secondary side I/O pins as well as the VDDP power input.
This feature ensures that the converter does not go into
oscillation due to noisy input power or slow power-on ramp rates.
The power supply section of the ADuM5210/ADuM5211/
ADuM5212 uses a 125 MHz oscillator frequency to efficiently
pass power through its chip-scale transformers. Bypass capacitors are required for several operating frequencies. Noise
suppression requires a low inductance, high frequency capacitor;
ripple suppression and proper regulation require a large value
bulk capacitor. These capacitors are most conveniently connected
between Pin 9 and Pin 10 for VDDP and between Pin 11 and Pin 12
for VISO. To suppress noise and reduce ripple, a parallel combination
of at least two capacitors is required. The recommended capacitor
values are 0.1 µF and 10 µF for VDD1. The smaller capacitor must
have a low ESR; for example, use of an NPO or X5R ceramic
capacitor is advised. Ceramic capacitors are also recommended for
the 10 μF bulk capacitance. An additional 10 nF capacitor can be
added in parallel if further EMI reduction
is required.
Note that the total lead length between the ends of the low ESR
capacitor and the input power supply pin must not exceed 2 mm.
VDD1
VDD2
GNDP
GNDISO
VOA/VIA
VIA/VOA
VIB/VOB
GNDP
ADuM5210/
ADuM5211/
ADuM5212
VOB/VIB
GNDISO
PDIS
VSEL
VDDP
VISO
GNDP
GNDISO
BYPASS < 2mm
PCB LAYOUT
Figure 26. Recommended PCB Layout
The ADuM5210/ADuM5211/ADuM5212 digital isolators with
0.15 W isoPower integrated dc-to-dc converters require no external interface circuitry for the logic interfaces. Power supply
bypassing with a low ESR capacitor is required, as close to the
chip pads as possible. The isoPower inputs require several
In applications involving high common-mode transients, ensure
that board coupling across the isolation barrier is minimized.
Furthermore, design the board layout such that any coupling
that does occur equally affects all pins on a given component side.
Rev. 0 | Page 19 of 24
10980-024
VISO
(R1 + R2)
= 1.25 V
R1
passive components to bypass the power effectively as well as
set the output voltage and bypass the core voltage regulator (see
Figure 24 through Figure 26).
10980-022
The dc-to-dc converter section of the ADuM5210/ADuM5211/
ADuM5212 works on principles that are common to most
modern power supplies. It has a split controller architecture with
isolated pulse-width modulation (PWM) feedback. VDDP power is
supplied to an oscillating circuit that switches current into a chipscale air core transformer. Power transferred to the secondary
side is rectified and regulated to a value between 3.15 V and
5.25 V, depending on the setpoint supplied by an external
voltage divider (see Equation 1). The secondary (VISO) side
controller regulates the output by creating a PWM control signal
that is sent to the primary (VDDP) side by a dedicated iCoupler
data channel. The PWM modulates the oscillator circuit to control
the power being sent to the secondary side. Feedback allows for
significantly higher power and efficiency.
ADuM5210/ADuM5211/ADuM5212
Data Sheet
Failure to ensure this can cause voltage differentials between pins,
exceeding the absolute maximum ratings specified in Table 19,
thereby leading to latch-up and/or permanent damage.
THERMAL ANALYSIS
The ADuM5210/ADuM5211/ADuM5212 consist of four internal
die attached to a split lead frame with two die attach paddles. For
the purposes of thermal analysis, the chip is treated as a thermal
unit, with the highest junction temperature reflected in the θJA from
Table 14. The value of θJA is based on measurements taken with the
parts mounted on a JEDEC standard, 4-layer board with fine
width traces and still air. Under normal operating conditions, the
ADuM5210/ADuM5211/ADuM5212 can operate at full load
across the full temperature range without derating the output current.
PROPAGATION DELAY PARAMETERS
Propagation delay is a parameter that describes the time it takes
a logic signal to propagate through a component (see Figure 27).
The propagation delay to a logic low output may differ from the
propagation delay to a logic high.
50%
V = (−dβ/dt)∑πrn2; n = 1, 2, … , N
50%
Figure 27. Propagation Delay Parameters
Pulse width distortion is the maximum difference between these
two propagation delay values and is an indication of how
accurately the input signal timing is preserved.
Channel-to-channel matching refers to the maximum amount
the propagation delay differs between channels within a single
ADuM5210/ADuM5211/ADuM5212 component.
where:
β is the magnetic flux density (gauss).
N is the number of turns in the receiving coil.
rn is the radius of the nth turn in the receiving coil (cm).
Given the geometry of the receiving coil in the ADuM5210/
ADuM5211/ADuM5212 and an imposed requirement that
the induced voltage be, at most, 50% of the 0.5 V margin at the
decoder, a maximum allowable magnetic field is calculated as
shown in Figure 28.
100
Propagation delay skew refers to the maximum amount the
propagation delay differs between multiple ADuM5210/
ADuM5211/ADuM5212 devices operating under the same
conditions.
EMI CONSIDERATIONS
The dc-to-dc converter section of the ADuM5210/ADuM5211/
ADuM5212 components must, of necessity, operate at a very high
frequency to allow efficient power transfer through the small
transformers. This creates high frequency currents that can
propagate in circuit board ground and power planes, causing
edge and dipole radiation. Grounded enclosures are recommended for applications that use these devices. If grounded
enclosures are not possible, follow good RF design practices
in the layout of the PCB. See the AN-0971 Application Note
for the most current PCB layout recommendations for the
ADuM5210/ADuM5211/ADuM5212.
DC CORRECTNESS AND MAGNETIC FIELD IMMUNITY
Positive and negative logic transitions at the isolator input cause
narrow (~1 ns) pulses to be sent to the decoder via the transformer.
The decoder is bistable and is, therefore, either set or reset by
the pulses, indicating input logic transitions. In the absence of
MAXIMUM ALLOWABLE MAGNETIC FLUX
DENSITY (kGauss)
OUTPUT (VOx)
The pulses at the transformer output have an amplitude of >1.5 V.
The decoder has a sensing threshold of about 0.5 V, thus establishing a 0.5 V margin in which induced voltages can be tolerated.
The voltage induced across the receiving coil is given by
tPHL
10980-025
tPLH
The limitation on the ADuM5210/ADuM5211/ADuM5212
magnetic field immunity is set by the condition in which induced
voltage in the transformer receiving coil is sufficiently large to either
falsely set or reset the decoder. The following analysis defines
the conditions under which this can occur. The 3.3 V operating
condition of the ADuM5210/ADuM5211/ADuM5212 is examined
because it represents the most susceptible mode of operation.
10
1
0.1
0.01
0.001
1k
1M
10k
10M
100k
MAGNETIC FIELD FREQUENCY (Hz)
100M
10980-026
INPUT (VIx)
logic transitions at the input for more than 1.6 µs, periodic sets
of refresh pulses indicative of the correct input state are sent to
ensure dc correctness at the output. If the decoder receives no
internal pulses of more than approximately 6.4 µs, the input side
is assumed to be unpowered or nonfunctional, in which case,
the isolator output is forced to a default low state by the watchdog
timer circuit. This situation should occur in the ADuM5210/
ADuM5211/ADuM5212 only during power-up and powerdown operations.
Figure 28. Maximum Allowable External Magnetic Flux Density
For example, at a magnetic field frequency of 1 MHz, the
maximum allowable magnetic field of 0.2 kgauss induces a
voltage of 0.25 V at the receiving coil. This is about 50% of the
sensing threshold and does not cause a faulty output transition.
Similarly, if such an event occurs during a transmitted pulse
(and is of the worst-case polarity), it reduces the received pulse
from >1.0 V to 0.75 V, which is still well above the 0.5 V sensing
threshold of the decoder.
Rev. 0 | Page 20 of 24
Data Sheet
ADuM5210/ADuM5211/ADuM5212
The preceding magnetic flux density values correspond to specific
current magnitudes at given distances from the ADuM5210/
ADuM5211/ADuM5212 transformers. Figure 29 expresses these
allowable current magnitudes as a function of frequency for
selected distances. As shown in Figure 29, the ADuM5210/
ADuM5211/ADuM5212 are extremely immune and can be
affected only by extremely large currents operated at high
frequency very close to the component. For the 1 MHz example,
a 0.5 kA current, placed 5 mm away from the ADuM5210/
ADuM5211/ADuM5212, is required to affect component
operation.
The VDDP power supply input provides power only to the converter.
Power for the data channels is provided through VDD1 and VDD2.
These power supplies can be connected to VDDP and VISO, if desired,
or the supplies can receive power from an independent source. The
converter should be treated as a standalone supply to be utilized at
the discretion of the designer.
The VDD1 or VDD2 supply current at a given channel of the
ADuM5210/ADuM5211/ADuM5212 isolator is a function of
the supply voltage, the data rate of the channel, and the output
load of the channel.
For each input channel, the supply current is given by
DISTANCE = 1m
100
IDDI = IDDI(Q)
f ≤ 0.5 fr
IDDI = IDDI(D) × (2f − fr) + IDDI(Q)
f > 0.5 fr
For each output channel, the supply current is given by
10
DISTANCE = 100mm
IDDO = IDDO(Q)
1
f ≤ 0.5 fr
IDDO = (IDDO(D) + (0.5 × 10 ) × CL × VDDO) × (2f − fr) + IDDO Q)
f > 0.5 fr
−3
DISTANCE = 5mm
0.1
0.01
1k
10k
100k
1M
10M
MAGNETIC FIELD FREQUENCY (Hz)
100M
10980-027
MAXIMUM ALLOWABLE CURRENT (kA)
1k
POWER CONSUMPTION
Figure 29. Maximum Allowable Current for Various Current-to-ADuM521x
Spacings
Note that, in combinations of strong magnetic field and high
frequency, any loops formed by PCB traces can induce error
voltages sufficiently large to trigger the thresholds of succeeding
circuitry. Exercise care in the layout of such traces to avoid this
possibility.
where:
IDDI(D), IDDO(D) are the input and output dynamic supply currents
per channel (mA/Mbps).
IDDI(Q), IDDO(Q) are the specified input and output quiescent
supply currents (mA).
f is the input logic signal frequency (MHz); it is half the input
data rate, expressed in units of Mbps.
fr is the input stage refresh rate (Mbps).
CL is the output load capacitance (pF).
VDDO is the output supply voltage (V).
To calculate the total VDD1 and VDD2 supply current, the supply
currents for each input and output channel corresponding to
VDD1 and VDD2 are calculated and totaled. Figure 18 and
Figure 19 show per-channel supply currents as a function of
data rate for an unloaded output condition. Figure 20 shows the
per-channel supply current as a function of data rate for a 15 pF
output condition. Figure 21throughFigure 23 show the total
VDD1 and VDD2 supply current as a function of data rate for
ADuM5210/ ADuM5211/ADuM5212 channel configurations.
Rev. 0 | Page 21 of 24
ADuM5210/ADuM5211/ADuM5212
Data Sheet
The insulation lifetime of the ADuM5210/ADuM5211/
ADuM5212 depends on the voltage waveform type imposed
across the isolation barrier. The iCoupler insulation structure
degrades at different rates, depending on whether the waveform is bipolar ac, unipolar ac, or dc. Figure 30, Figure 31, and
Figure 32 illustrate these different isolation voltage waveforms.
Bipolar ac voltage is the most stringent environment. A 50-year
operating lifetime under the bipolar ac condition determines
the Analog Devices recommended maximum working voltage.
RATED PEAK VOLTAGE
0V
Figure 30. Bipolar AC Waveform
RATED PEAK VOLTAGE
0V
Figure 31. DC Waveform
RATED PEAK VOLTAGE
0V
NOTES
1. THE VOLTAGE IS SHOWN AS SINUSOIDAL FOR ILLUSTRATION
PUPOSES ONLY. IT IS MEANT TO REPRESENT ANY VOLTAGE
WAVEFORM VARYING BETWEEN 0V AND SOME LIMITING VALUE.
THE LIMITING VALUE CAN BE POSITIVE OR NEGATIVE,
BUT THE VOLTAGE CANNOT CROSS 0V.
Figure 32. Unipolar AC Waveform
Rev. 0 | Page 22 of 24
10980-030
Accelerated life testing is performed using voltage levels higher
than the rated continuous working voltage. Acceleration factors
for several operating conditions are determined, allowing
calculation of the time to failure at the working voltage of
interest. The values shown in Table 20 summarize the peak
voltages for 50 years of service life in several operating
conditions. In many cases, the working voltage approved by
agency testing is higher than the 50-year service life voltage.
Operation at working voltages higher than the service life
voltage listed leads to premature insulation failure.
10980-028
All insulation structures eventually break down when subjected
to voltage stress over a sufficiently long period. The rate of
insulation degradation is dependent on the characteristics of
the voltage waveform applied across the insulation. Analog
Devices conducts an extensive set of evaluations to determine
the lifetime of the insulation structure within the ADuM5210/
ADuM5211/ADuM5212.
In the case of dc or unipolar ac voltage, the stress on the insulation
is significantly lower. This allows operation at higher working
voltages while still achieving a 50-year service life. The working
voltages listed in Table 20 can be applied while maintaining the
50-year minimum lifetime, provided the voltage conforms to either
the dc or unipolar ac voltage cases. Any cross-insulation voltage
waveform that does not conform to Figure 31 or Figure 32 must be
treated as a bipolar ac waveform, and its peak voltage must be
limited to the 50-year lifetime voltage value listed in Table 20.
10980-029
INSULATION LIFETIME
Data Sheet
ADuM5210/ADuM5211/ADuM5212
OUTLINE DIMENSIONS
7.50
7.20
6.90
11
20
5.60
5.30
5.00
1
8.20
7.80
7.40
10
0.65 BSC
SEATING
PLANE
8°
4°
0°
0.95
0.75
0.55
COMPLIANT TO JEDEC STANDARDS MO-150-AE
060106-A
0.38
0.22
0.05 MIN
COPLANARITY
0.10
0.25
0.09
1.85
1.75
1.65
2.00 MAX
Figure 33. 20-Lead Shrink Small Outline Package [SSOP]
(RS-20)
Dimensions shown in millimeters
ORDERING GUIDE
Model1, 2
ADuM5210ARSZ
ADuM5210ARSZ-RL7
ADuM5210BRSZ
ADuM5210BRSZ-RL7
ADuM5210CRSZ
ADuM5210CRSZ-RL7
ADuM5211ARSZ
ADuM5211ARSZ-RL7
ADuM5211BRSZ
ADuM5211BRSZ-RL7
ADuM5211CRSZ
ADuM5211CRSZ-RL7
ADuM5212ARSZ
ADuM5212ARSZ-RL7
ADuM5212BRSZ
ADuM5212BRSZ-RL7
ADuM5212CRSZ
ADuM5212CRSZ-RL7
1
2
Number
of Inputs,
VDDP Side
2
2
2
2
2
2
1
1
1
1
1
1
0
0
0
0
0
0
Number
of Inputs,
VISO Side
0
0
0
0
0
0
1
1
1
1
1
1
2
2
2
2
2
2
Maximum
Data Rate
(Mbps)
1
1
25
25
100
100
1
1
25
25
100
100
1
1
25
25
100
100
Maximum
Propagation
Delay, 5 V (ns)
75
75
40
40
15
15
75
75
40
40
15
15
75
75
40
40
15
15
The addition of an RL7 suffix designates a 7” tape and reel option.
Z = RoHS Compliant Part.
Rev. 0 | Page 23 of 24
Maximum
Pulse Width
Distortion (ns)
40
40
3
3
2
2
40
40
3
3
2
2
40
40
3
3
2
2
Temperature
Range (°C)
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
Package
Description
20-Lead SSOP
20-Lead SSOP
20-Lead SSOP
20-Lead SSOP
20-Lead SSOP
20-Lead SSOP
20-Lead SSOP
20-Lead SSOP
20-Lead SSOP
20-Lead SSOP
20-Lead SSOP
20-Lead SSOP
20-Lead SSOP
20-Lead SSOP
20-Lead SSOP
20-Lead SSOP
20-Lead SSOP
20-Lead SSOP
Package
Option
RS-20
RS-20
RS-20
RS-20
RS-20
RS-20
RS-20
RS-20
RS-20
RS-20
RS-20
RS-20
RS-20
RS-20
RS-20
RS-20
RS-20
RS-20
ADuM5210/ADuM5211/ADuM5212
Data Sheet
NOTES
©2013 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D10980-0-1/13(0)
Rev. 0 | Page 24 of 24