Quad-Channel, 5 kV Isolators with
Integrated DC-to-DC Converter
Data Sheet
FEATURES
isoPower
integrated, isolated dc-to-dc converter
Regulated 5 V or 3.3 V output
Up to 400 mW output power
16-lead SOIC wide body package (RW-16)
16-lead SOIC wide body package with enhanced
creepage (RI-16-1)
Quad dc-to-25 Mbps (NRZ) signal isolation channels
Schmitt triggered inputs
High temperature operation: 105°C maximum
High common-mode transient immunity: >25 kV/μs
Safety and regulatory approvals
(RI-16-1 package)
UL recognition
5000 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice #5A (pending)
IEC 60601-1: 250 V rms
IEC 60950-1: 400 V rms
VDE certificate of conformity
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
V
IORM
= 846 V peak
ADuM6400/ADuM6401/ADuM6402/ADuM6403/ADuM6404
FUNCTIONAL BLOCK DIAGRAMS
V
DD1 1
GND
1 2
V
IA
/V
OA 3
V
IB
/V
OB 4
V
IC
/V
OC 5
V
ID
/V
OD 6
V
DDL 7
GND
1 8
4-CHANNEL
iCOUPLER
CORE
OSC
RECT
REG
16
V
ISO
15
GND
ISO
14
V
IA
/V
OA
13
V
IB
/V
OB
12
V
IC
/V
OC
11
V
ID
/V
OD
10
V
SEL
9
ADuM6400/ADuM6401/
ADuM6402/ADuM6403/
ADuM6404
GND
ISO
Figure 1.
V
IA
V
IB
V
IC
V
ID
3
4
14
13
V
OA
V
OB
V
OC
V
OD
08141-002
ADuM6400
5
6
12
11
Figure 2.
ADuM6400
V
IA
V
IB
V
IC
V
OD
3
4
14
13
V
OA
V
OB
V
OC
V
ID
08141-003
APPLICATIONS
RS-232/RS-422/RS-485 transceivers
Medical isolation
AC/DC power supply start-up bias and gate drives
Isolated sensor interfaces
ADuM6401
5
6
12
11
Figure 3.
ADuM6401
V
IA
V
IB
V
OC
V
OD
3
4
14
13
V
OA
V
OB
V
IC
V
ID
08141-004
GENERAL DESCRIPTION
The
ADuM6400/ADuM6401/ADuM6402/ADuM6403/
ADuM6404
1
are quad-channel digital isolators with
isoPower®,
an integrated, isolated dc-to-dc converter. Based on the Analog
Devices, Inc.,
iCoupler®
technology, the dc-to-dc converter provides
up to 400 mW of regulated, isolated power at either 5.0 V or 3.3 V
from a 5.0 V input supply, or at 3.3 V from a 3.3 V supply at the
power levels shown in Table 1. These devices eliminate the need
for a separate, isolated dc-to-dc converter in low power, isolated
designs.
The
ADuM6400/ADuM6401/ADuM6402/ADuM6403/
ADuM6404
isolators provide four independent isolation
channels in a variety of channel configurations and data rates
(see the Ordering Guide for more information).
isoPower
uses high frequency switching elements to transfer power
through its transformer. Special care must be taken during printed
circuit board (PCB) layout to meet emissions standards. See the
AN-0971 Application Note
for board layout recommendations.
1
ADuM6402
5
6
12
11
Figure 4.
ADuM6402
V
IA
V
OB
V
OC
V
OD
3
4
14
13
V
OA
V
IB
V
IC
V
ID
08141-005
ADuM6403
5
6
12
11
Figure 5.
ADuM6403
V
OA
V
OB
V
OC
V
OD
V
IA
3
4
14
13
V
IB
V
IC
ADuM6404
5
6
12
11
V
ID
Figure 6.
ADuM6404
Table 1. Power Levels
Input Voltage
5.0 V
5.0 V
3.3 V
Output Voltage
5.0 V
3.3 V
3.3 V
Output Power
400 mW
330 mW
132 mW
Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329.
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©2009–2012 Analog Devices, Inc. All rights reserved.
08141-006
08141-001
ADuM6400/ADuM6401/ADuM6402/ADuM6403/ADuM6404
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagrams ............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Electrical Characteristics—5 V Primary Input Supply/
5 V Secondary Isolated Supply ................................................... 3
Electrical Characteristics—3.3 V Primary Input Supply/
3.3 V Secondary Isolated Supply ................................................ 5
Electrical Characteristics—5 V Primary Input Supply/
3.3 V Secondary Isolated Supply ................................................ 6
Package Characteristics ............................................................... 8
Regulatory Information ............................................................... 9
Insulation and Safety-Related Specifications ............................ 9
Insulation Characteristics.......................................................... 10
Recommended Operating Conditions .................................... 10
Absolute Maximum Ratings.......................................................... 11
ESD Caution ................................................................................ 11
Data Sheet
Pin Configurations and Function Descriptions ......................... 12
Truth Table .................................................................................. 16
Typical Performance Characteristics ........................................... 17
Terminology .................................................................................... 20
Applications Information .............................................................. 21
PCB Layout ................................................................................. 21
Start-Up Behavior....................................................................... 21
EMI Considerations ................................................................... 22
Propagation Delay Parameters ................................................. 22
DC Correctness and Magnetic Field Immunity ..................... 22
Power Consumption .................................................................. 23
Current Limit and Thermal Overload Protection ................. 24
Power Considerations ................................................................ 24
Thermal Analysis ....................................................................... 25
Insulation Lifetime ..................................................................... 25
Outline Dimensions ....................................................................... 26
Ordering Guide .......................................................................... 27
REVISION HISTORY
4/12—Rev.
0 to Rev. A
Changes to Features Section, General Description Section,
and Table 1 ......................................................................................... 1
Changes to Table 2 and Table 3 ....................................................... 3
Changes to Endnote 1 in Table 5 .................................................... 4
Changes to Table 6 and Table 7 ....................................................... 5
Change to Propagation Delay Parameter in Table 8 .................... 5
Changes to Endnote 1 in Table 9; Changes to Table 10 ............... 6
Changes to Table 11 .......................................................................... 7
Changes to Endnote 1 in Table 13; Changes to Table 14 ............. 8
Changes to Regulatory Information Section, Table 15,
and Table 16 ....................................................................................... 9
Changes to Insulation Characteristics Section, Table 17,
and Table 18 ..................................................................................... 10
Changes to Table 20 ........................................................................ 11
Changes to Table 26 ........................................................................ 16
Changes to Figure 13, Figure 14, Figure 15, Figure 17,
and Figure 18 ................................................................................... 17
Changes to Figure 19 and Figure 20............................................. 18
Added Figure 21 and Figure 22; Renumbered
Figures Sequentially ....................................................................... 18
Added Definition of I
ISO(LOAD)
to Terminology Section .............. 20
Changes to PCB Layout Section ................................................... 21
Added Start-Up Behavior Section ................................................ 21
Changes to EMI Considerations Section .................................... 22
Moved Propagation Delay Parameters Section .......................... 22
Changes to Power Consumption Section .................................... 23
Added Current Limit and Thermal Overload Protection
Section.............................................................................................. 24
Moved Thermal Analysis Section ................................................ 25
Changes to Insulation Lifetime Section and Figure 33 ............. 25
Updated Outline Dimensions ....................................................... 26
Changes to Ordering Guide .......................................................... 27
5/09—Revision 0: Initial Version
Rev. A | Page 2 of 28
Data Sheet
SPECIFICATIONS
ADuM6400/ADuM6401/ADuM6402/ADuM6403/ADuM6404
ELECTRICAL CHARACTERISTICS—5 V PRIMARY INPUT SUPPLY/5 V SECONDARY ISOLATED SUPPLY
Typical specifications are at T
A
= 25°C, V
DD1
= V
SEL
= V
ISO
= 5 V. Minimum/maximum specifications apply over the entire recommended
operation range, which is 4.5 V ≤ V
DD1
, V
SEL
, V
ISO
≤ 5.5 V, and −40°C ≤ T
A
≤ +105°C, unless otherwise noted. Switching specifications are
tested with C
L
= 15 pF and CMOS signal levels, unless otherwise noted.
Table 2. DC-to-DC Converter Static Specifications
Parameter
DC-TO-DC CONVERTER SUPPLY
Setpoint
Line Regulation
Load Regulation
Output Ripple
Output Noise
Switching Frequency
PWM Frequency
Output Supply Current
Efficiency at I
ISO(MAX)
I
DD1
, No V
ISO
Load
I
DD1
, Full V
ISO
Load
Symbol
V
ISO
V
ISO(LINE)
V
ISO(LOAD)
V
ISO(RIP)
V
ISO(NOISE)
f
OSC
f
PWM
I
ISO(MAX)
I
DD1(Q)
I
DD1(MAX)
Min
4.7
Typ
5.0
1
1
75
200
180
625
34
13
290
Max
5.4
5
Unit
V
mV/V
%
mV p-p
mV p-p
MHz
kHz
mA
%
mA
mA
Test Conditions/Comments
I
ISO
= 0 mA
I
ISO
= 40 mA, V
DD1
= 4.5 V to 5.5 V
I
ISO
= 8 mA to 72 mA
20 MHz bandwidth, C
BO
= 0.1 μF||10 μF, I
ISO
= 72 mA
C
BO
= 0.1 μF||10 μF, I
ISO
= 72 mA
80
35
V
ISO
> 4.5 V
I
ISO
= 80 mA
Table 3. DC-to-DC Converter Dynamic Specifications
Parameter
SUPPLY CURRENT
Input
ADuM6400
ADuM6401
ADuM6402
ADuM6403
ADuM6404
Available to Load
ADuM6400
ADuM6401
ADuM6402
ADuM6403
ADuM6404
Symbol
I
DD1(D)
12
12
13
14
14
I
ISO(LOAD)
80
80
80
80
80
69
67
65
63
61
mA
mA
mA
mA
mA
64
68
71
75
78
mA
mA
mA
mA
mA
No V
ISO
load
No V
ISO
load
No V
ISO
load
No V
ISO
load
No V
ISO
load
1 Mbps—A or C Grade
Min
Typ
Max
25 Mbps—C Grade
Min
Typ
Max
Unit
Test Conditions/
Comments
Rev. A | Page 3 of 28
ADuM6400/ADuM6401/ADuM6402/ADuM6403/ADuM6404
Table 4. Switching Specifications
Parameter
SWITCHING SPECIFICATIONS
Data Rate
Propagation Delay
Pulse Width Distortion
Change vs. Temperature
Pulse Width
Propagation Delay Skew
Channel Matching
Codirectional
1
Opposing Directional
2
1
7
Data Sheet
Test Conditions/
Comments
Within PWD limit
50% input to 50% output
|t
PLH
− t
PHL
|
Within PWD limit
Between any two units
Symbol
Min
A Grade
Typ
Max
1
100
40
Min
C Grade
Typ
Max
25
60
6
Unit
Mbps
ns
ns
ps/°C
ns
ns
ns
ns
t
PHL
, t
PLH
PWD
PW
t
PSK
t
PSKCD
t
PSKOD
1000
55
45
5
40
50
50
50
15
6
15
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.
2
Opposing directional channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on opposite sides of the
isolation barrier.
Table 5. Input and Output Characteristics
Parameter
DC SPECIFICATIONS
Logic High Input Threshold
Logic Low Input Threshold
Logic High Output Voltages
Logic Low Output Voltages
Undervoltage Lockout
Positive-Going Threshold
Negative-Going Threshold
Hysteresis
Input Currents per Channel
AC SPECIFICATIONS
Output Rise/Fall Time
Common-Mode Transient
Immunity
1
Refresh Rate
1
Symbol
V
IH
V
IL
V
OH
V
OL
UVLO
V
UV+
V
UV−
V
UVH
I
I
t
R
/t
F
|CM|
f
r
Min
0.7 × V
ISO
or 0.7 × V
DD1
Typ
Max
Unit
V
V
V
V
V
V
V
V
V
μA
ns
kV/μs
Mbps
Test Conditions/
Comments
0.3 × V
ISO
or 0.3 × V
DD1
V
DD1
− 0.3 or V
ISO
− 0.3
V
DD1
− 0.5 or V
ISO
− 0.5
5.0
4.8
0.0
0.2
2.7
2.4
0.3
+0.01
2.5
35
1.0
0.1
0.4
I
Ox
= −20 μA, V
Ix
= V
IxH
I
Ox
= −4 mA, V
Ix
= V
IxH
I
Ox
= 20 μA, V
Ix
= V
IxL
I
Ox
= 4 mA, V
Ix
= V
IxL
V
DD1
, V
DDL
, V
ISO
supplies
−20
+20
0 V ≤ V
Ix
≤ V
DDx
10% to 90%
V
Ix
= V
DD1
or V
ISO
, V
CM
= 1000 V,
transient magnitude = 800 V
25
|CM| is the maximum common-mode voltage slew rate that can be sustained while maintaining V
O
> 0.7 × V
DD1
or 0.7 × V
ISO
for a high input or V
O
< 0.3 × V
DD1
or 0.3 × V
ISO
for a low
input. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges.
Rev. A | Page 4 of 28
Data Sheet
ADuM6400/ADuM6401/ADuM6402/ADuM6403/ADuM6404
ELECTRICAL CHARACTERISTICS—3.3 V PRIMARY INPUT SUPPLY/3.3 V SECONDARY ISOLATED SUPPLY
Typical specifications are at T
A
= 25°C, V
DD1
= V
ISO
= 3.3 V, V
SEL
= GND
ISO
. Minimum/maximum specifications apply over the entire
recommended operation range, which is 3.0 V ≤ V
DD1
, V
SEL
, V
ISO
≤ 3.6 V, and −40°C ≤ T
A
≤ +105°C, unless otherwise noted. Switching
specifications are tested with C
L
= 15 pF and CMOS signal levels, unless otherwise noted.
Table 6. DC-to-DC Converter Static Specifications
Parameter
DC-TO-DC CONVERTER SUPPLY
Setpoint
Line Regulation
Load Regulation
Output Ripple
Output Noise
Switching Frequency
PWM Frequency
Output Supply Current
Efficiency at I
ISO(MAX)
I
DD1
, No V
ISO
Load
I
DD1
, Full V
ISO
Load
Symbol
V
ISO
V
ISO(LINE)
V
ISO(LOAD)
V
ISO(RIP)
V
ISO(NOISE)
f
OSC
f
PWM
I
ISO(MAX)
I
DD1(Q)
I
DD1(MAX)
Min
3.0
Typ
3.3
1
1
50
130
180
625
33
15
175
Max
3.6
5
Unit
V
mV/V
%
mV p-p
mV p-p
MHz
kHz
mA
%
mA
mA
Test Conditions/Comments
I
ISO
= 0 mA
I
ISO
= 20 mA, V
DD1
= 3.0 V to 3.6 V
I
ISO
= 4 mA to 36 mA
20 MHz bandwidth, C
BO
= 0.1 μF||10 μF, I
ISO
= 54 mA
C
BO
= 0.1 μF||10 μF, I
ISO
= 54 mA
40
28
V
ISO
> 3 V
I
ISO
= 40 mA
Table 7. DC-to-DC Converter Dynamic Specifications
Parameter
SUPPLY CURRENT
Input
ADuM6400
ADuM6401
ADuM6402
ADuM6403
ADuM6404
Available to Load
ADuM6400
ADuM6401
ADuM6402
ADuM6403
ADuM6404
Symbol
I
DD1(D)
8
8
8
9
9
I
ISO(LOAD)
40
40
40
40
40
33
31
30
29
28
mA
mA
mA
mA
mA
41
44
46
47
51
mA
mA
mA
mA
mA
No V
ISO
load
No V
ISO
load
No V
ISO
load
No V
ISO
load
No V
ISO
load
1 Mbps—A or C Grade
Min
Typ
Max
25 Mbps—C Grade
Min
Typ
Max
Unit
Test Conditions/
Comments
Table 8. Switching Specifications
Parameter
SWITCHING SPECIFICATIONS
Data Rate
Propagation Delay
Pulse Width Distortion
Change vs. Temperature
Pulse Width
Propagation Delay Skew
Channel Matching
Codirectional
1
Opposing Directional
2
1
7
Symbol
Min
A Grade
Typ
Max
1
100
40
Min
C Grade
Typ
Max
25
65
6
Unit
Mbps
ns
ns
ps/°C
ns
ns
ns
ns
Test Conditions/
Comments
Within PWD limit
50% input to 50% output
|t
PLH
− t
PHL
|
Within PWD limit
Between any two units
t
PHL
, t
PLH
PWD
PW
t
PSK
t
PSKCD
t
PSKOD
1000
60
45
5
40
50
50
50
45
6
15
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.
2
Opposing directional channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on opposite sides of the
isolation barrier.
Rev. A | Page 5 of 28
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