Integrated DC-to-DC Converter
ADuM6010
Data Sheet
FEATURES
FUNCTIONAL BLOCK DIAGRAM
ADuM6010
20
NC
GNDP 2
19
GNDISO
NC
3
18
NC
NC 4
17
NC
GNDP 5
16
GNDISO
GNDP 6
15
GNDISO
NC 7
14
NC
13
VSEL
NC 1
PDIS 8
PCS
VDDP 9
GNDP 10
1.25V 12 VISO
OSC
RECT
REG
11
GNDISO
11043-001
isoPower integrated, isolated dc-to-dc converter
Regulated 3.15 V or 5.25 V output
Up to 150 mW output power
20-lead SSOP package with 5 mm creepage
High temperature operation: 105°C
High common-mode transient immunity: >25 kV/μs
Safety and regulatory approvals
UL recognition (pending)
3750 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 = 849 V peak
Figure 1.
APPLICATIONS
Power supply start-up bias and gate drives
Isolated sensor interfaces
Industrial PLCs
Table 1. Power Levels
GENERAL DESCRIPTION
The ADuM6010 is an integrated, isolated dc-to-dc converter.
Based on the Analog Devices, Inc., iCoupler® technology, the
dc-to-dc converter provides regulated, isolated power, adjustable
between 3.15 V and 5.25 V. Input supply voltages can range from
slightly below the required output to significantly higher.
Popular combination ant their associated power levels are shown in
Table 1.
Input Voltage (V)
5
5
3.3
Output Voltage (V)
5
3.3
3.3
Output Power (mW)
150
100
100
The iCoupler chip-scale transformer technology is used for isolated
logic signals and for the magnetic components of the dc-to-dc
converter. The result is a small form factor, total isolation
solution.
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
Document Feedback
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
©2012 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
ADuM6010
Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1 Applications ....................................................................................... 1 DIN V VDE V 0884-10 (VDE V 0884-10) Insulation
Characteristics ...............................................................................7 General Description ......................................................................... 1 Recommended Operating Conditions .......................................7 Functional Block Diagram .............................................................. 1 Absolute Maximum Ratings ............................................................8 Revision History ............................................................................... 2 ESD Caution...................................................................................8 Specifications..................................................................................... 3 Pin Configurations and Function Descriptions ............................9 Electrical Characteristics—5 V Primary Input Supply/5 V
Secondary Isolated Supply .......................................................... 3 Truth Table .................................................................................. 10 Typical Performance Characteristics ........................................... 11 Electrical Characteristics—3.3 V Primary Input Supply/3.3 V
Secondary Isolated Supply .......................................................... 4 Applications Information .............................................................. 13 Electrical Characteristics—5 V Primary Input Supply/3.3 V
Secondary Isolated Supply .......................................................... 5 Thermal Analysis ....................................................................... 13 Package Characteristics ............................................................... 6 Regulatory Approvals................................................................... 6 Insulation and Safety-Related Specifications ............................ 6 PCB Layout ................................................................................. 13 EMI Considerations ................................................................... 14 Insulation Lifetime ..................................................................... 14 Outline Dimensions ....................................................................... 15 Ordering Guide .......................................................................... 15 REVISION HISTORY
10/12—Revision 0: Initial Version
Rev. 0 | Page 2 of 15
Data Sheet
ADuM6010
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS—5 V PRIMARY INPUT SUPPLY/5 V SECONDARY ISOLATED SUPPLY
All typical specifications are at TA = 25°C, VDDP = VISO = 5 V, VSEL resistor network: R1 = 10 kΩ, R2 = 30 kΩ. Minimum/maximum specifications
apply over the entire recommended operation range which is 4.5 V ≤ VDDP, VSEL, VISO ≤ 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
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
Typ
Max
Unit
Test Conditions/Comments
VISO
VISO (LINE)
VISO (LOAD)
VISO (RIP)
VISO (NOISE)
fOSC
fPWM
IISO (MAX)
4.89
5.0
20
1
75
200
TBD
TBD
5.11
V
mV/V
%
mV p-p
mV p-p
MHz
kHz
mA
%
mA
mA
IISO = 15 mA, R1 = 10 kΩ, R2 = 30 kΩ
IISO = 15 mA, VDD1 = 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
IDD1 (Q)
IDD1 (MAX)
5
29
29
2.5
95
5
154
10
VISO > 4.5 V
IISO = 27 mA
°C
°C
Table 3. Input and Output Characteristics
Parameter
DC SPECIFICATIONS
Logic High Input Threshold
Logic Low Input Threshold
Undervoltage Lockout
Positive Going Threshold
Negative Going Threshold
Hysteresis
Input Currents per Channel
Symbol
Min
VIH
VIL
0.7 VISO or 0.7 VDDP
Typ
Max
Unit
0.3 VISO or 0.3 VDDP
V
V
+10
V
V
V
μA
Test Conditions/Comments
VISO, VDDP supply
VUV+
VUV−
VUVH
IPDIS
−10
2.7
2.4
0.3
+0.01
Rev. 0 | Page 3 of 15
0 V ≤ VPDIS ≤ VDDP
ADuM6010
Data Sheet
ELECTRICAL CHARACTERISTICS—3.3 V PRIMARY INPUT SUPPLY/3.3 V SECONDARY ISOLATED SUPPLY
All typical specifications are at TA = 25°C, VDDP = VISO = 3.3 V, VSEL resistor network: R1 = 10 kΩ, R2 = 16.2 kΩ. Minimum/maximum
specifications apply over the entire recommended operation range which is 3.0 V ≤ VDDP, VSEL, VISO ≤ 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 4. DC-to-DC Converter Static Specifications
Parameter
DC-TO-DC CONVERTER SUPPLY
Setpoint
Line Regulation
Load Regulation
Output Ripple
Output Noise
Switching Frequency
Pulse Width Modulation Frequency
Output Supply
Efficiency at IISO (MAX)
IDD1, No VISO Load
IDD1, Full VISO Load
Thermal Shutdown
Shutdown Temperature
Thermal Hysteresis
Thermal Shutdown
Shutdown Temperature
Thermal Hysteresis
Symbol
Min
VISO
VISO (LINE)
VISO (LOAD)
VISO (RIP)
VISO (NOISE)
fOSC
fPWM
IISO (MAX)
3.23
IDD1 (Q)
IDD1 (MAX)
Typ
Max
3.3
3.37
20
1
50
130
TBD
TBD
5
20
27
4
99
7
Unit
Test Conditions/Comments
V
IISO = 15 mA, R1 = 10 kΩ, R2 = 16.2 kΩ
mV/V
%
mV p-p
mV p-p
MHz
kHz
mA
%
mA
mA
IISO = 15 mA, VDD1 = 3.0 V to 3.6 V
IISO = 3 mA to 27 mA
20 MHz bandwidth, CBO = 0.1 μF||10 μF, IISO = 18 mA
CBO = 0.1 μF||10 μF, IISO = 18 mA
154
10
°C
°C
154
10
°C
°C
3.6 V >VISO > 3 V
IISO = 18 mA
Table 5. Input and Output Characteristics
Parameter
DC SPECIFICATIONS
Logic High Input Threshold
Logic Low Input Threshold
Undervoltage Lockout
Positive Going Threshold
Negative Going Threshold
Hysteresis
Input Currents per Channel
Symbol
Min
VIH
VIL
0.7 VISO or 0.7 VDDP
Typ
Max
Unit
0.3 VISO or 0.3 VDDP
V
V
+10
V
V
V
μA
Test Conditions/Comments
VDDP supply
VUV+
VUV−
VUVH
IPDIS
−10
2.7
2.4
0.3
+0.01
Rev. 0 | Page 4 of 15
0 V ≤ VPDIS ≤ VDDP
Data Sheet
ADuM6010
ELECTRICAL CHARACTERISTICS—5 V PRIMARY INPUT SUPPLY/3.3 V SECONDARY ISOLATED SUPPLY
All typical specifications are at TA = 25°C, VDDP = 5.0 V, VISO = 3.3 V, VSEL resistor network: R1 = 10 kΩ, R2 = 16.2 kΩ. Minimum/maximum
specifications apply over the entire recommended operation range which is 4.5 V ≤ VDDP ≤ 5.5 V, 3.0 V ≤ VISO ≤ 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 6. DC-to-DC Converter Static Specifications
Parameter
DC-TO-DC CONVERTER SUPPLY
Setpoint
Line Regulation
Load Regulation
Output Ripple
Output Noise
Switching Frequency
Pulse Width Modulation Frequency
Output Supply
Efficiency at IISO (MAX)
IDD1, No VISO Load
IDD1, Full VISO Load
Thermal Shutdown
Shutdown Temperature
Thermal Hysteresis
Symbol
Min
Typ
Max
Unit
Test Conditions/Comments
VISO
VISO (LINE)
VISO (LOAD)
VISO (RIP)
VISO (NOISE)
fOSC
fPWM
IISO (MAX)
3.23
3.3
20
1
50
130
TBD
TBD
3.37
V
mV/V
%
mV p-p
mV p-p
MHz
kHz
mA
%
mA
mA
IISO = 15 mA, R1 = 10 kΩ, R2 = 16.2 kΩ
IISO = 15 mA, VDD1 = 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
IDD1 (Q)
IDD1 (MAX)
5
30
24
2.5
71
5
154
10
3.6 V > VISO > 3 V
IISO = 27 mA
°C
°C
Table 7. Input and Output Characteristics
Parameter
DC SPECIFICATIONS
Logic High Input Threshold
Logic Low Input Threshold
Undervoltage Lockout
Positive Going Threshold
Negative Going Threshold
Hysteresis
Input Currents per Channel
Symbol
Min
VIH
VIL
0.7 VISO or 0.7 VDDP
Typ
Max
Unit
0.3 VISO or 0.3 VDDP
V
V
+10
V
V
V
μA
Test Conditions/Comments
VISO, VDDP supply
VUV+
VUV−
VUVH
IPDIS
−10
2.7
2.4
0.3
+0.01
Rev. 0 | Page 5 of 15
0 V ≤ VPDIS ≤ VDDP
ADuM6010
Data Sheet
PACKAGE CHARACTERISTICS
Table 8. Thermal and Isolation Characteristics
Parameter
Resistance (Input to Output)1
Capacitance (Input to Output)1
Input Capacitance2
IC Junction-to-Ambient Thermal
Resistance
Symbol
RI-O
CI-O
CI
θJA
Min
Typ
1012
2.2
4.0
83
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 traces3
1
The device is considered a 2-terminal device: Pin 1 to Pin 10 are shorted together; and Pin 11 to 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.
2
REGULATORY APPROVALS
Table 9.
UL (Pending)1
Recognized under 1577 component
recognition program1
Single protection, 3750 V rms
isolation voltage
File E214100
1
2
CSA (Pending)
Approved under CSA Component
Acceptance Notice #5A
Reinforced insulation per CSA 60950-1-03
and IEC 60950-1, 360 V rms (509 V peak)
maximum working voltage
File 205078
VDE (Pending)2
Certified according to DIN V VDE V 0884-10
(VDE V 0884-10):2006-122
Reinforced insulation, 849 V peak
File 2471900-4880-0001
In accordance with UL 1577, each ADuM6010 is proof tested by applying an insulation test voltage ≥ 3000 V rms for 1 second (current leakage detection limit = 10 μA).
In accordance with DIN V VDE V 0884-10, each ADuM6010 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.
INSULATION AND SAFETY-RELATED SPECIFICATIONS
Table 10. Critical Safety-Related Dimensions and Material Properties
Parameter
Rated Dielectric Insulation Voltage
Minimum External Air Gap (Clearance)
Symbol Value
3750
L(I01)
5.1
Unit Test Conditions/Comments
V rms 1-minute duration
mm
Measured from input terminals to output terminals,
shortest distance through air
5.1
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 6 of 15
Data Sheet
ADuM6010
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 11. 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
After Input and/or Safety Test Subgroup 2
and Subgroup 3
Highest Allowable Overvoltage
Withstand Isolation Voltage
Surge Isolation Voltage
Safety Limiting Values
Case Temperature
Total Power Dissipation at 25°C
Insulation Resistance at TS
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
1 minute withstand rating
VPEAK = 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 IV
I to III
40/105/21
2
849
1592
V peak
V peak
Vpd(m)
1273
V peak
Vpd(m)
1018
V peak
VIOTM
VISO
VIOSM
5300
3750
6000
V peak
V rms
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
11043-002
0.5
Figure 2. Thermal Derating Curve, Dependence of Safety Limiting Values on Case Temperature, per DIN EN 60747-5-2
RECOMMENDED OPERATING CONDITIONS
Table 12.
Parameter
Operating Temperature1
Supply Voltages2
VDD1 at VSEL = 0 V
VDD1 at VSEL = VISO
1
2
Symbol
TA
Min
−40
Max
+105
Unit
°C
VDD
3.0
4.5
5.5
5.5
V
V
Operation at 105°C requires reduction of the maximum load current as specified in Table 13.
Each voltage is relative to its respective ground.
Rev. 0 | Page 7 of 15
ADuM6010
Data Sheet
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 13.
Parameter
Storage Temperature (TST)
Ambient Operating Temperature (TA)
Supply Voltages (VDDP, VISO)1
VISO Supply Current2
TA = −40°C to +105°C
Input Voltage (PDIS, VSEL)1, 3
Common-Mode Transients4
1
Rating
−55°C to +150°C
−40°C to +105°C
−0.5 V to +7.0 V
30 mA
−0.5 V to VDDI + 0.5 V
−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. See Figure 2 for the maximum rated current values for various
temperatures.
3
VDDI and VDDO refer to the supply voltages on the input and output sides of a
given channel, respectively. See the Applications Information section.
4
Refers to common-mode transients across the insulation barrier. Commonmode transients exceeding the absolute maximum ratings may cause latch-up
or permanent damage.
2
Table 14. Maximum Continuous Working Voltage
Supporting 50-Year Minimum Lifetime1
Parameter
AC Voltage
Bipolar Waveform
Unipolar Waveform
DC Voltage
|DC Peak Voltage|
1
Max
Unit
360
V peak
560
V peak
560
V peak
Applicable
Certification
All certifications,
50-year operation
Working voltage per
IEC 60950-1
Working voltage per
IEC 60950-1
Refers to the continuous voltage magnitude imposed across the isolation
barrier. See the Insulation Lifetime section for more information.
ESD CAUTION
Rev. 0 | Page 8 of 15
Data Sheet
ADuM6010
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
NC 1
20 NC
GNDP 2
19 GNDISO
NC 3
GNDP 5
GNDP 6
NC 7
18 NC
ADuM6010
TOP VIEW
(Not to Scale)
17 NC
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.
11043-003
NC 4
Figure 3. Pin Configuration
Table 15. ADuM6010 Pin Function Descriptions
Pin No.
1, 3, 4, 7, 14,
17, 18, 20
2, 5, 6, 10
Mnemonic
NC
Description
This pin is not connected internally (see Figure 3).
GNDP
8
PDIS
9
11, 15, 16,19
VDDP
GNDISO
12
13
VISO
VSEL
Ground 1. Ground reference for isolator primary. Pin 2 and Pin 10 are internally connected, and it is recommended
that both pins be connected to a common ground.
Power Disable. When this pin is tied to GNDP the power converter is active; when a logic high voltage is applied,
the power supply enters a low power standby mode.
Primary Supply Voltage, 3.0 V to 5.5 V.
Ground Reference for Isolator Side 2. Pin 19 and Pin 11 are internally connected, and it is recommended that both
pins be connected to a common ground.
Secondary Supply Voltage Output for External Loads, 3.3 V (VSEL low) or 5.0 V (VSEL high).
Output Voltage Selection. When VSEL = VISO, the VISO setpoint is 5.0 V. When VSEL = GNDISO, the VISO setpoint is 3.3 V.
Rev. 0 | Page 9 of 15
ADuM6010
Data Sheet
TRUTH TABLE
Table 16. Truth Table (Positive Logic)
VDDP (V)
5
5
3.3
3.3
5
5
3.3
3.3
VSEL Input
R1 = 30 kΩ, R2 = 10 kΩ
R1 = 30 kΩ, R2 = 10 kΩ
R1 = 25 kΩ, R2 = 15 kΩ
R1 = 25 kΩ, R2 = 15 kΩ
R1 = 25 kΩ, R2 = 15 kΩ
R1 = 25 kΩ, R2 = 15 kΩ
R1 = 30 kΩ, R2 = 10 kΩ
R1 = 30 kΩ, R2 = 10 kΩ
PDIS Input
Low
High
Low
High
Low
High
Low
High
VISO Output (V)
5
0
3.3
0
3.3
0
5
0
Rev. 0 | Page 10 of 15
Notes
Configuration not recommended
Data Sheet
ADuM6010
TYPICAL PERFORMANCE CHARACTERISTICS
1.8
0.25
0.20
0.15
0.10
0.05
0
0.02
0.04
0.06
0.08
LOAD CURRENT (A)
Figure 4. Typical Power Supply Efficiency at 5 V/5 V, 5 V/3.3 V, and 3.3 V/3.3 V
0.7
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
3.0
0.10
0.05
3.5
4.0
4.5
5.0
VDD INPUT VOLTAGE (V)
0
6.0
VISO (100mV/DIV)
0.5
0.4
0.3
10% LOAD
0
0.02
0.04
IISO (A)
0.06
0.08
Figure 5. Typical Total Power Dissipation vs. IISO with Data Channels Idle
0.07
Figure 8. Typical VISO Transient Load Response, 5 V Input, 5 V Output,
10% to 90% Load Step
VISO (100mV/DIV)
VDD = 5V/VISO = 5V
VDD = 5V/VISO = 3.3V
VDD = 3.3V/VISO = 3.3V
0.06
(1ms/DIV)
11043-005
0
11043-008
90% LOAD
0.2
0.1
0.05
0.04
90% LOAD
0.03
0.02
10% LOAD
0
0
50
100
VISO (mA)
150
200
11043-006
0.01
Figure 6. Typical Isolated Output Supply Current, IISO, as a Function of External
Load, No Dynamic Current Draw at 5 V/5 V, 5 V/3.3 V, and 3.3 V/3.3 V
Rev. 0 | Page 11 of 15
(1ms/DIV)
11043-009
IDD (A)
5.5
Figure 7. Typical Short-Circuit Input Current and Power vs. VDD1 Supply Voltage
VDD = 5V/VISO = 5V
VDD = 5V/VISO = 3.3V
VDD = 3.3V/VISO = 3.3V
0.6
POWER DISSIPATION (W)
0.45
0.2
11043-004
0
0.50
IIN
PIN
11043-007
POWER DISSIPATION (W)
0.30
EFFICIENCY (%)
2.0
5V/5V
5V/3.3V
3.3V/3.3V
IDDP CURRENT (A)
0.35
Figure 9. Typical Transient Load Response, 3.3 V input 3.3 V Output,
10% to 90% Load Step
ADuM6010
Data Sheet
VISO (100mV/DIV)
3.280
VISO (V)
2.278
90% LOAD
3.276
3.274
11043-010
10% LOAD
(1ms/DIV)
3.270
0
1
2
3
4
TIME (µs)
Figure 10. Typical Transient Load Response, 5 V Input, 3.3 V Output,
10% to 90% Load Step
Figure 12. Typical VISO = 3.3 V Output Voltage Ripple at 90% Load
4.970
4.965
4.955
4.950
4.945
4.940
0
1
2
3
4
TIME (µs)
11043-011
VISO (V)
4.960
Figure 11. Typical VISO = 5 V Output Voltage Ripple at 90% Load
Rev. 0 | Page 12 of 15
11043-012
3.272
Data Sheet
ADuM6010
APPLICATIONS INFORMATION
The dc-to-dc converter section of the ADuM6010 works on
principles that are common to most modern power supplies. It
has split controller architecture with isolated pulse-width
modulation (PWM) feedback. VDDP power is supplied to an
oscillating circuit that switches current into a chip-scale 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 set-point 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.
VISO  1.25 V
(R1  R2 )
R1
(1)
where:
R1 is a resistor between VSEL and GNDISO.
R2 is a resistor between VSEL and VISO.
The ADuM6010 implements undervoltage lockout (UVLO) with
hysteresis on the VISO and VDDP power inputs. 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 ADuM6010 uses a ? MHz
oscillator frequency to efficiently pass power through its chipscale 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 capacitor. These 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. 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.
Installing the bypass capacitor with traces more than 2 mm in
length may result in data corruption. A 0.1 μF bypass between
Pin 1 and Pin 2 and between Pin 19 and Pin 20 is required for
proper operation of the data channels.
GNDISO
GNDP
The ADuM6010 digital isolator with 0.15 W isoPower integrated
dc-to-dc converter requires no external interface circuitry for
the logic interfaces. Power supply bypass with a low ESR
capacitor is required, as close to the chip pads as possible. The
isoPower inputs require several passive components to bypass
the power effectively as well as set the output voltage and bypass
the core voltage regulator (see Figure 13 through Figure 15).
VDDP
10µF
+
0.1µF
GNDP
8
9
10
11043-013
PDIS
Figure 13. VDDP Bias and Bypass Components
PDIS
VSEL
VDDP
VISO
GNDP
GNDISO
BYPASS < 2mm
11043-015
ADuM6010
PCB LAYOUT
Figure 15. Recommended PCB Layout
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.
Failure to ensure this can cause voltage differentials between pins,
exceeding the absolute maximum ratings specified in Table 13,
thereby leading to latch-up and/or permanent damage.
THERMAL ANALYSIS
12
11
VSEL
30kΩ
VISO
GNDISO
0.1µF
10kΩ
10µF
+
11043-014
13
Figure 14. VISO Bias and Bypass Components
The ADuM6010 consist of four internal die attached to a split lead
frame with two die attach paddles. For the purposes of thermal
analysis, the die is treated as a thermal unit, with the highest
junction temperature reflected in the θJA from Table 8. 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 ADuM6010 can operate
at full load across the full temperature range without derating the
output current.
Rev. 0 | Page 13 of 15
ADuM6010
Data Sheet
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 ADuM6010.
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 14 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.
The insulation lifetime of the ADuM6010 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 16,
Rev. 0 | Page 14 of 15
RATED PEAK VOLTAGE
0V
Figure 16. Bipolar AC Waveform
RATED PEAK VOLTAGE
0V
Figure 17. DC Waveform
RATED PEAK VOLTAGE
0V
NOTES
1. THE VOLTAGE IS SHOWN AS SINU SOIDAL 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 18. Unipolar AC Waveform
11043-018
INSULATION LIFETIME
11043-016
The dc-to-dc converter section of the ADuM6010 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 at www.analog.com for
the most current PCB layout recommendations for the
ADuM6010.
Figure 17, and Figure 18 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.
In the case of unipolar ac or dc 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 14 can be applied while maintaining the
50-year minimum lifetime, provided the voltage conforms to either
the unipolar ac or dc voltage cases. Any cross-insulation voltage
waveform that does not conform to Figure 17 or Figure 18 should
be treated as a bipolar ac waveform, and its peak voltage should
be limited to the 50-year lifetime voltage value listed in Table 14.
11043-017
EMI CONSIDERATIONS
Data Sheet
ADuM6010
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 19. 20-Lead Shrink Small Outline Package [SSOP]
(RS-20)
Dimensions shown in millimeters
ORDERING GUIDE
Model1, 2
ADuM6010ARSZ
ADuM6010ARSZ-RL7
1
2
Temperature Range
−40°C to +105°C
−40°C to +105°C
Tape and reel are available. The addition of an RL suffix designates a 7” tape and reel option.
Z = RoHS Compliant Part.
©2012 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D11043-0-10/12(0)
Rev. 0 | Page 15 of 15
Package Description
20-Lead SSOP
20-Lead SSOP
Package Option
RS-20
RS-20
Download PDF
Similar pages