Isolated DC/DC Converter
Preliminary Technical Data
ADuM5000
Rev. PrA
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FEATURES
isoPower™ integrated isolated DC/DC converter
Regulated 3.3V or 5V output
500mW output power
SOIC 16-lead package with > 8mm creepage
High temperature operation: 105°C
High common-mode transient immunity: > 25 kV/μs
Thermal Overload Protection
Safety and regulatory approvals (pending)
UL recognition
2500 V rms for 1 minute per UL 1577
CSA component acceptance notice #5A
VDE certificate of conformity
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
VIORM = 560 V peak
APPLICATIONS
RS-232/RS-422/RS-485 transceiver
Industrial field bus isolation
Power Supply start up and Gate Drive
Isolated Sensor Interface
Industrial PLC
GENERAL DESCRIPTION
The ADuM50001 is an isolated DC/DC converter. Based on
Analog Devices’ iCoupler® technology, the DC/DC converter
provides up to 500 mW of regulated, isolated power at either
5.0V from a 5.0V input supply or 3.3V from a 3.3V or 5.0V
supply. Analog Devices’ chip-scale transformer iCoupler
technology is used both for the DC/DC converter. The result is a
small form-factor total-isolation solution.
ADuM5000 units may be used in combination with ADuM540x
and ADuM520x with isoPower to achieve higher output power
levels.
FUNCTIONAL BLOCK DIAGRAM
Figure 1ADuM5000 Functional Diagram
1 Protected by U.S. Patents 5,952,849, 6,873,065. and 7075 329 B2, Other
patents pending.
Preliminary Technical Data ADuM5000
Rev. PrA | Page 2 of 15
TABLE OF CONTENTS
Applications....................................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Electrical Characteristics – 5V Primary Input Supply / 5V
Secondary Isolated Supply .......................................................... 3
Electrical Characteristics – 3.3V Primary Input Supply / 3.3V
Secondary Isolated Supply .......................................................... 4
Electrical Characteristics – 5V Primary Input Supply / 3.3V
Secondary Isolated Supply .......................................................... 5
Package Characteristics ............................................................... 6
Insulation and Safety-Related Specifications............................ 6
DIN V VDE V 0884-10 (VDE V 0884-10) Insulation
Characteristics .............................................................................. 7
Recommended Operating Conditions ...................................... 7
Absolute Maximum Ratings ............................................................8
ESD Caution...................................................................................8
Pin Configuration and Function Descriptions..............................9
Application Information................................................................ 12
Theory of operation ................................................................... 12
PC Board Layout ........................................................................ 12
Thermal Analysis ....................................................................... 12
Insulation Lifetime..................................................................... 13
Outline Dimensions ....................................................................... 15
Ordering Guide .......................................................................... 15
REVISION HISTORY
Preliminary Technical Data ADuM5000
Rev. PrA | Page 3 of 15
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS – 5V PRIMARY INPUT SUPPLY / 5V SECONDARY ISOLATED SUPPLY1
4.5 V ≤ VDD1 ≤ 5.5 V, VSEL=VISO; all voltages are relative to their respective ground. All min/max specifications apply over the entire
recommended operating range, unless otherwise noted. All typical specifications are at TA = 25°C, VDD = 5.0 V, VISO = 5.0 V, VSEL= VISO.
Table 1.
Parameter Symbol Min Typ Max Unit Test Conditions
Setpoint VISO 4.7 5.0 5.4 V IISO=0mA
Line Regulation VISO(LINE) 1 mV/V IISO=50mA, VDD1=4.5V to 5.5V
Load Regulation VISO(LOAD) 1 5 % IISO = 10mA to 100mA
Output Ripple VISO(RIP) 75 mVP-P 5MHz Bandwidth, CBO=0.1μF ║ 6.6μF,
IISO = 100mA
Output Noise VISO(N) 200 mVP-P 20MHz Bandwidth, CBO=0.1μF ║
6.6μF, IISO = 100mA
Switching Frequency fOSC 180 MHz
PWM Frequency fPWM 625 kHz
IDD1 Supply Current, Full VISO load2 I
DD1(Max) 290 mA IISO=100mA
1 All voltages are relative to their respective ground.
2 IDD1(MAX) is the input current under full dynamic and VISO load conditions.
ADuM5000 Preliminary Technical Data
Rev. PrA| Page 4 of 15
ELECTRICAL CHARACTERISTICS – 3.3V PRIMARY INPUT SUPPLY / 3.3V SECONDARY ISOLATED SUPPLY1
3.0 V ≤ VDD1 ≤ 3.6 V, VSEL=GNDISO; all voltages are relative to their respective ground. All min/max specifications apply over the entire
recommended operating range, unless otherwise noted. All typical specifications are at TA = 25°C, VDD = 3.3 V, VISO = 3.3 V, VSEL=
GNDISO.
Table 2.
Parameter Symbol Min Typ Max Unit Test Conditions
Setpoint VISO 3.0 3.3 3.6 V IISO=0mA
Line Regulation VISO(LINE) 1 mV/V IISO=37.5 mA, VDD1=3.0V to 3.6V
Load Regulation VISO(LOAD) 1 5 % IISO = 6mA to 54mA
Output Ripple VISO(RIP) 50 mVP-P 20MHz Bandwidth, CBO=0.1μF ║ 10μF,
IISO = 90mA
Output Noise VISO(N) 130 mVP-P 20MHz Bandwidth, CBO=0.1μF ║ 10μF,
IISO = 60mA
Switching Frequency fOSC 180 MHz
PWM Frequency fPWM 625 kHz
IDD1 Supply Current, Full VISO load2 I
DD1(Max) 175 mA IISO=100mA
1 All voltages are relative to their respective ground.
2 IDD1(MAX) is the input current under full dynamic and VISO load conditions.
Preliminary Technical Data ADuM5000
Rev. PrA | Page 5 of 15
ELECTRICAL CHARACTERISTICS – 5V PRIMARY INPUT SUPPLY / 3.3V SECONDARY ISOLATED SUPPLY1
4.5 V ≤ VDD1 ≤ 5.5 V, VSEL= GNDISO, all voltages are relative to their respective ground. All min/max specifications apply over the entire
recommended operating range, unless otherwise noted. All typical specifications are at TA = 25°C, VDD = 5.0 V, VISO = 3.3 V, VSEL=
GNDISO.
Table 3.
Parameter Symbol Min Typ Max Unit Test Conditions
Setpoint VISO 3.0 3.3 3.6 V IISO=0mA
Line Regulation VISO(LINE) 1 mV/V IISO=50mA, VDD1=4.5V to 5.5V
Load Regulation VISO(LOAD) 1 5 % IISO = 10mA to 100mA
Output Ripple VISO(RIP) 50 mVP-P 20MHz Bandwidth, CBO=0.1μF ║ 10μF,
IISO = 100mA
Output Noise VISO(N) 130 mVP-P 20MHz Bandwidth, CBO=0.1μF ║ 10μF,
IISO = 100mA
Switching Frequency fSW 180 MHz
PWM Frequency fPWM 625 kHz
IDD1 Supply Current, Full VISO load2 I
DD1(Max) 230 mA IISO=100mA
1 All voltages are relative to their respective ground.
2 IDD1(MAX) is the input current under full dynamic and VISO load conditions.
ADuM5000 Preliminary Technical Data
Rev. PrA| Page 6 of 15
PACKAGE CHARACTERISTICS
Table 4.
Parameter Symbol Min Typ Max Unit Test Conditions
Resistance (Input-to-Output)1 R
I-O 1012 Ω
Capacitance (Input-to-Output)1 CI-O 2.2 pF f = 1 MHz
Input Capacitance2 C
I 4.0 pF
IC Junction to Ambient Thermal Resistance θCA 45 °C/W
Thermocouple located at center of
package underside, test conducted on 4
layer board with thin traces3.
Thermal Shutdown
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
TSSD
TSSD-HYS
150
20
°C
°C
TJ Rising
1 Device considered a 2-terminal device; Pins 1, 2, 3, 4, 5, 6, 7, and 8 shorted together and Pins 9, 10, 11, 12, 13, 14, 15, and 16 shorted together.
2 Input capacitance is from any input data pin to ground.
3 Refer to the Power Considerations section for thermal model definitions
Table 5.
UL (Pending) CSA (Pending) VDE (Pending)
Recognized under 1577 component
recognition program1
Approved under CSA Component
Acceptance Notice #5A
Certified according to DIN V VDE V 0884-10
(VDE V 0884-10):2006-122
Reinforced insulation,
2500 V rms isolation voltage
Reinforced insulation per CSA 60950-1-03
and IEC 60950-1,
400 V rms (566 V peak)maximum working
voltage
Reinforced insulation, 560 V peak
File E214100 File 205078 File 2471900-4880-0001
1 In accordance with UL1577, each ADuM5000 is proof tested by applying an insulation test voltage ≥3000 V rms for 1 sec (current leakage detection limit = 5 μA).
2 In accordance with DIN V VDE V 0884-10, each ADuM5000 is proof tested by applying an insulation test voltage ≥1050 V peak for 1 sec (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 6.
Parameter Symbol Value Unit Conditions
Rated Dielectric Insulation Voltage 2500 V rms 1 minute duration
Minimum External Air Gap (Clearance) L(I01) >8 min mm Measured from input terminals to output terminals,
shortest distance through air
Minimum External Tracking (Creepage) L(I02) >8 min mm Measured from input terminals to output terminals,
shortest distance path along body
Minimum Internal Gap (Internal Clearance) 0.017 min mm Insulation distance through insulation
Tracking Resistance (Comparative Tracking Index) CTI >175 V DIN IEC 112/VDE 0303 Part 1
Isolation Group IIIa Material Group (DIN VDE 0110, 1/89, Table 1)
Preliminary Technical Data ADuM5000
Rev. PrA | Page 7 of 15
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
protective circuits. The * marking on packages denotes DIN V VDE V 0884-10 approval.
Table 7.
Description Conditions Symbol Characteristic Unit
Installation Classification per DIN VDE 0110
For Rated Mains Voltage ≤ 150 V rms I to IV
For Rated Mains Voltage ≤ 300 V rms I to III
For Rated Mains Voltage ≤ 400 V rms I to II
Climatic Classification 40/105/21
Pollution Degree per DIN VDE 0110, Table 1 2
Maximum Working Insulation Voltage VIORM 560 V peak
Input-to-Output Test Voltage, Method B1 VIORM × 1.875 = VPR, 100% production test, tm = 1 sec,
partial discharge < 5 pC
VPR 1050 V peak
Input-to-Output Test Voltage, Method A VIORM × 1.6 = VPR, tm = 60 sec, partial discharge < 5 pC VPR
After Environmental Tests Subgroup 1 896 V peak
After Input and/or Safety Test Subgroup 2
and Subgroup 3
VIORM × 1.2 = VPR, tm = 60 sec, partial discharge < 5 pC 672 V peak
Highest Allowable Overvoltage Transient overvoltage, tTR = 10 seconds VTR 4000 V peak
Safety-Limiting Values Maximum value allowed in the event of a failure
( see Figure 2)
Case Temperature TS 150 °C
Side 1 Current IS1 265 mA
Side 2 Current IS2 335 mA
Insulation Resistance at TS VIO = 500 V RS >109 Ω
0
100
200
300
400
500
600
0 50 100 150 200
Amb ient Tempeartur e (°C)
Safe Operating VDD1 Cur rent (mA)
Figure 2. Thermal Derating Curve, Dependence of Safety Limiting Values on
Case Temperature, per DIN EN 60747-5-2
RECOMMENDED OPERATING CONDITIONS
Table 8.
Parameter Symbol Min Max Unit
Operating Temperature TA −40 +85 °C
Supply Voltages1
VDD @ VSEL=0V VDD 2.7 5.5 V
VDD @ VSEL=5V VDD 4.5 5.5 V
1 All voltages are relative to their respective ground.
Preliminary Technical Data ADuM5000
Rev. PrA | Page 8 of 15
ABSOLUTE MAXIMUM RATINGS
Ambient temperature = 25°C, unless otherwise noted.
Table 9.
Parameter Rating
Storage Temperature (TST) −55°C to +150°C
Ambient Operating Temperature (TA) −40°C to +105°C
Supply Voltages (VDD, VISO)1 −0.5 V to +7.0 V
Input Voltage
(CTR,RCIN, VSEL)1, 2
−0.5 V to VDDI + 0.5 V
Output Voltage
(RCOUT)1, 2
−0.5 V to VDDO + 0.5 V
Average Total Output Current 3
IISO 100mA
Common-Mode Transients4 −100 kV/μs to +100 kV/μs
1 All voltages are relative to their respective ground.
2 VDDI and VDDO refer to the supply voltages on the input and output sides of a
given channel, respectively. See the PC Board Layout section.
3 See Figure 2 for maximum rated current values for various temperatures.
4 Refers to common-mode transients across the insulation barrier. Common-
mode transients exceeding the Absolute Maximum Ratings may cause latch-
up or permanent damage.
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.
ESD CAUTION
Table 10. Maximum Continuous Working Voltage1
Parameter Max Unit Constraint
AC Voltage, Bipolar Waveform 424 V peak 50-year minimum lifetime
AC Voltage, Unipolar Waveform V peak
Basic Insulation 600 V peak Maximum approved working voltage per IEC 60950-1
Reinforced Insulation 560 V peak Maximum approved working voltage per IEC 60950-1 and VDE
V 0884-10
DC Voltage
Basic Insulation 600 V peak Maximum approved working voltage per IEC 60950-1
Reinforced Insulation 560 V peak Maximum approved working voltage per IEC 60950-1 and VDE
V 0884-10
1 Refers to continuous voltage magnitude imposed across the isolation barrier. See the Insulation Lifetime section for more details.
Table 11. Truth Table (Positive Logic)
RCSEL
Input
RCIN
Input
RCOUT
Output
VSEL
Input1
VDDI
Input
VISO
Output Notes
H X FB-PWM H 5.0V 5.0V Master mode operation, Self Regulating
H X FB-PWM L 5.0V 3.3V Master mode operation, Self Regulating
H X FB-PWM H 3.3V 5.0V Master mode operation, Self Regulating
H X FB-PWM L 3.3V 3.3V Master mode operation, Self Regulating
L EXT-PWM RCIN X 5.0V X Slave mode operation, Regulation from another isoPower part.
L L L L X X Low power mode, Converter disabled
L H X X X X WARNING! This combination of RCIN and RCSEL is prohibited.
Damage will occur on the secondary due to exess output voltage at
VISO. RCin must be either Low or a PWM signal from a master
isoPower part..
Preliminary Technical Data ADuM5000
Rev. PrA | Page 9 of 15
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Figure 3. ADuM5200 Pin Configuration
Table 12. ADuM5000 Pin Function Descriptions
Pin No. Mnemonic Description
1 VDD1 Primary Supply Voltage 3.0V to 5.5 V. Pin 1 and Pin 7 are internally connected, and connecting both to VDD1 is
recommended
2,8 GND1 Ground 1. Ground reference for converter Primary. Pin 2 and Pin 8 are internally connected, and it is recommended that
both pins be connected to a common ground.
3 NC No Internal Connection.
4 RCIN Regulation Control Input, In slave power configuration (RCSEL=Low), this pin is connected to the RCOUT of a master
isoPower device, or tied low to disable the converter. In Master/Stand alone mode(RCSEL=High) this pin has no
function. This pin is weakly pulled to low. In Noisy environments it should be tied to low or to a PWM control source.
Warning -This pin must not be tied high if RCSEL is low, this combination will cause excessive volatge on the
secondary, damaging the ADuM5000 and possibly devices that it powers.
5 RCOUT Regulation Control Output, In master power configuration, this pin is connected to the RCIN of a slave isoPower device
to allow the ADuM5000 to regulate additional devices.
6 RCSEL Control input, Determines Master/self regulation (CTL High) mode or Slave mode(CTL Low)allowing external
regulation. This pin is weakly pulled to high. In noisy environments it should be tied either high or low.
7 VDD1 Primary Supply Voltage 3.0V to 5.5 V. Pin 1 and Pin 7 are internally connected, and connecting both to VDD1 is
recommended.
9,15 GNDISO Ground reference for converter Secondary. Pin 9 and Pin 15 are internally connected, and it is recommended that both pins
be connected to a common ground.
10 VISO Secondary Supply Voltage Output External Loads, 3.3V (VSEL Low) or 5.0V (VSEL High), 5.0V output Functioanlity not
guaranteed for a 3.3V primary supply input. Pin 10 and Pin 16 are internally connected, and connecting both to GNDISO is
recommended.
11 NC No Internal Connection.
12 NC No Internal Connection.
13 VSEL Output Voltage Selection: When VSEL = VISO then the Viso set point is 5.0V, When VSEL = GNDISO Then the VISO setpoint
is 3.3V. This pin is weakly pulled to high. In noisy environments it should be tied either high or low. In Slave regulation
mode this pin has no function.
14 NC No Internal Connection.
16 VISO Secondary Supply Voltage Output External Loads, 3.3V (VSEL Low) or 5.0V (VSEL High), 5.0V output Functioanlity not
guaranteed for a 3.3V primary supply input. Pin 10 and Pin 16 are internally connected, and connecting both to GNDISO is
recommended.
ADuM5000 Preliminary Technical Data
Rev. PrA| Page 10 of 15
Typical Performance Characteristics
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0 0.02 0.04 0.06 0.08 0.1 0.12
Output Current (A)
Efficiency
3.3V in / 3.3V out
5V in / 3.3V out
5V in / 5V out
Figure 4. Typical Power Supply Efficiency at 5V/5V, 3.3V/3.3V and
5V/3.3V
0
0.02
0.04
0.06
0.08
0.1
0.12
0 0.05 0.1 0.15 0.2 0.25 0.3 0.35
Input Current (A)
Onput Current (A)
3.3V in / 3.3V out
5V in / 3.3V out
5V in / 5V out
Figure 5. Typical Isolated Output Supply Current, IISO as a function of
external load, no dynamic current draw at 5V/5V, 3.3V/3.3V and
5V/3.3V
0
0.5
1
1.5
2
2.5
3
3.5
4
33.544.555.566.5
Input Voltage (V)
Input Current (A) a nd Power (W)
Idd
Po w e r
Figure 6. Typical Short Circuit Input Current and Power vs. VDD supply
voltage
Figure 7. Typical VISO Transient Load Response 5V Output 10%-90%
Load Step
Figure 8. Typical Transient Load Response 3V Output 10%-100% Load
Step
Preliminary Technical Data ADuM5000
Rev. PrA | Page 11 of 15
Figure 9. Typical Viso=5V Output Voltage Ripple at 90% Load
Figure 10. Typical Viso=3.3V Output Voltage Ripple at 90% Load
ADuM5000 Preliminary Technical Data
Rev. PrA| Page 12 of 15
APPLICATION INFORMATION
THEORY OF OPERATION
The DC/DC converter section of the ADuM5000 works on
principles that are common to most modern power supply
designs. It is implemented as a secondary side controller with
isolated PWM feedback. VDD1 power is supplied to an oscillating
circuit that switches current into a chip-scale air core
transformer. Power is transferred to the secondary side where it
is rectified to a DC voltage. The power is then regulated to
either 3.3or 5V and supplied to the secondary side data section
and to the VISO pin for external use. Active feedback is
implemented by a digital feedback path. The output regulator
creates a pulse width modulated signal which is coupled to the
input side and switches the oscillator on and off regulating the
power. Feedback allows for significantly higher power,
efficiency, and synchronization of multiple supplies.
The ADuM5000 provides its Regulation Control output
(RCout) signal that can be connected to other isoPower devices.
This allows a single regulator to control multiple power
modules without contention. When auxiliary power modules
are present, the VSIO pins can be connected together to work as a
single supply. Since there is only one feedback control path, the
supplies will work together seamlessly. The ADuM5000 can
only be a source of Regulation Control, other devices
There is hysteresis into the input VDD input voltage detect
circuit. Once the DC/DC converter is active, the input voltage
must be decreased below the turn on threshold to disable the
converter. This feature ensures that the converter does not go
into oscillation due to noisy input power.
PC BOARD LAYOUT
The ADuM5000 digital isolator with a ½W isoPower integrated
DC/DC converter requires no external interface circuitry for
the logic interfaces. Power supply bypassing is required at the
input and output supply pins (Figure 11). The power supply
section of the ADuM5000 uses a very high oscillator frequency
to efficiently pass power through its chip scale transformers. In
addition, the normal operation of the data section of the
iCoupler introduces switching transients on the power supply
pins. 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 Pins 1 and 2 for VDD1 and between Pins 15
and 16 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 6.6μF. It is
strongly recommended that a very low inductance ceramic or
equivalent capacitor be used for the smaller value. The total lead
length between both ends of the capacitor and the input power
supply pin should not exceed 20 mm. Bypassing between Pins 1
and 8 and between Pins 9 and 16 should also be considered
unless the both of the common ground pins are connected
together close to the package.
Figure 11. Recommended Printed Circuit Board Layout
In applications involving high common-mode transients, care
should be taken to ensure that board coupling across the isolation
barrier is minimized. Furthermore, the board layout should be
designed such that any coupling that does occur equally affects
all pins on a given component side. Failure to ensure this could
cause voltage differentials between pins exceeding the device’s
Absolute Maximum Ratings, specified in Table 9 thereby
leading to latch-up and/or permanent damage.
The ADuM5000 is a power device that dissipates about 1W of
power when fully loaded and running at maximum speed.
Since it is not possible to apply a heat sink to an isolation
device, the device primarily depends on heat dissipation into
the PCB through the GND pins. If the device will be used at
high ambient temperatures, care should be taken to provide a
thermal path from the GND pins to the PCB ground plane.
The board layout in Figure 11 shows enlarged pads for pins 2, 8,
9, and 15. Multiple vias should be implemented from the pad to
the ground plane. This will significantly reduce the
temperatures inside of the chip. The dimensions of the
expanded pads are left to discretion of the designer and the
available board space.
THERMAL ANALYSIS
The ADuM5000 parts consist of four internal die, attached to a
split lead frame with two die attach paddles. For the purposes
of thermal analysis it is treated as a thermal unit with the
highest junction temperature reflected in the θJA from Table 4.
The value of θJA is based on measurements taken with the part
mounted on a JEDEC standard 4 layer board with fine width
traces and still air. Under normal operating conditions the
ADuM5000 will operate at full load across the full temperature
range without derating the output current. However, following
the recommendations in the PC Board Layout section will
decrease the thermal resistance to the PCB allowing increased
thermal margin it high ambient temperatures.
CURRENT LIMIT AND THERMAL OVERLOAD
PROTECTION
Preliminary Technical Data ADuM5000
Rev. PrA | Page 13 of 15
The ADuM5000 is protected against damage due to excessive
power dissipation by thermal overload protection circuits.
Thermal overload protection limits the junction temperature to
a maximum of 150°C (typical). Under extreme conditions (that
is, high ambient temperature and power dissipation) when the
junction temperature starts to rise above 150°C, the PWM is
turned off, reducing the output current to zero. When the
junction temperature drops below 130°C (typical), the PWM is
turned on again and output current is restored to its nominal
value.
Consider the case where a hard short from VISO to ground
occurs. At first, the ADuM5000 reaches its maximum current,
which is proportional to the voltage applied at VDD1. Power is
dissipated in the primary (see Error! Reference source not
found.). If self-heating of the junction becomes great enough
to cause its temperature to rise above 150°C, thermal
shutdown activates, turning off the PWM and reducing the
output current to zero. As the junction temperature cools and
drops below 130°C, the PWM turns on and power is again
dissipated in the primary, again causing the junction
temperature to rise above 150°C. This thermal oscillation
between 130°C and 150°C causes a current oscillation that
continues as long as the short remains at the output.
Thermal limit protections are intended to protect the device
against accidental overload conditions. For reliable operation,
device power dissipation should be externally limited so
junction temperatures do not exceed 130°C.
POWER CONSIDERATIONS
The ADuM5000 Converter Primary side, is protected from
premature operation by Under Voltage Lock Out (UVLO)
circuitry. Below the minimum operating voltage, the power
converter holds its oscillator inactive.
INCREASING AVAILABLE POWER
The ADuM5000 devices are designed with capability of running
in combination with other compatible isoPower devices. The
RCOUT RCIN and RCSEL pins allow the ADuM5000 to provide its
PWM signal to another device through the RCOUT pin acting as
a master. It can also receive a PWM signal from another device
through the RCIN pin and act as a slave to that control signal.
The RCSEL pin chooses whether the part will act as a master or
slave device. When the ADuM5000 is acting as a slave, its
power is regulated by the master device allowing multiple
isoPower parts to be combined in parallel while sharing the
load equally. When the ADuM5000 is configured as a
Master/Stand alone unit, it generates its own PWM feedback
signal to regulate itself and slave devices.
The ADuM5000 can act as a master or a slave deice, the
ADuM5400 can only be a master/stand alone, and the
ADuM5200 can only be a slave/Stand alone device. This means
that the ADuM5000, ADuM5200, and ADuM5400 can only be
used in certain master slave combinations as listed in Table 13.
Slave
ADuM5000 ADuM5200 ADuM5400
ADuM5000 Y Y N
ADuM5200 N N N
Master
ADuM5400 Y Y N
Table 13 Allowed combinations of isoPower Parts
The allowed combinations of master and slave configured parts
listed in Table 13 is sufficient to make any combination of
power and channel count. Table 14 illustrates how isoPower
devices can provide many combinations of data channel count
and multiples of the single unit power.
Number of Data Channels
0 2 4 6
ADuM5000
Master
ADuM520x
Master
ADuM540x
Master
ADuM540x
Master
ADuM12xx
1 Unit
Power
ADuM5000
Master
ADuM500x
Master
ADuM540x
Master
ADuM540x
Master
ADuM5000
Slave
ADuM5200
Slave
ADuM5200
Slave
ADuM520x
Slave
2 Unit
Power
ADuM5000
Master
ADuM5000
Master
ADuM540x
Master
ADuM540x
Master
ADuM5000
Slave
ADuM5000
Slave
ADuM5000
Slave
ADuM520x
Slave
3 Unit
Power
ADuM5000
Slave
ADuM520x
Slave
ADuM5000
Slave
ADuM5000
Slave
Table 14 Configurations for Power and Data Channels
INSULATION LIFETIME
All insulation structures will eventually break down when
subjected to voltage stress over a sufficiently long period. The
rate of insulation degradation is dependant on the
characteristics of the voltage waveform applied across the
insulation. In addition to the testing performed by the
regulatory agencies, Analog Devices carries out an extensive set
of evaluations to determine the lifetime of the insulation
structure within the ADuM5000.
ADI performs accelerated life testing using voltage levels higher
than the rated continuous working voltage. Acceleration factors
for several operating conditions are determined. These factors
allow calculation of the time to failure at the actual working
voltage. The values shown in Table 10 summarize the peak
voltage for 50 years of service life for a bipolar ac operating
condition, and the maximum CSA/VDE approved working
voltages. In many cases, the approved working voltage is higher
than 50-year service life voltage. Operation at these high
working voltages can lead to shortened insulation life in some
cases.
The insulation lifetime of the ADuM5000 depends on the
ADuM5000 Preliminary Technical Data
Rev. PrA| Page 14 of 15
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 12, Figure 13, and Figure 14 illustrate these
different isolation voltage waveforms.
Bipolar ac voltage is the most stringent environment. The goal
of a 50-year operating lifetime under the ac bipolar condition
determines ADI’s 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 10 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
131or Figure 14 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 10.
0V
RATED P E AK V OLTAGE
05007-021
Figure 12. Bipolar AC Waveform
0V
RATED P E AK V OLTAGE
05007-022
Figure 13. Unipolar AC Waveform
0V
RATED P E AK V OLTAGE
05007-023
Figure 14. DC Waveform
1 The voltage presented in Figure 13 is shown as sinusoidal for illustration
purposes only. It is meant to represent any voltage waveform varying
between 0 and some limiting value. The limiting value can be positive or
negative, but the voltage cannot cross 0V.
Preliminary Technical Data ADuM5000
Rev. PrA | Page 15 of 15 PR07539-0-5/08(PrA)
OUTLINE DIMENSIONS
CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN.
COMPLIANT TO JEDEC STANDARDS MS-013-AA
SEATING
PLANE
0.30 (0.0118)
0.10 (0.0039)
0.51 (0.0201)
0.31 (0.0122)
2.65 (0.1043)
2.35 (0.0925)
1.27 (0.0500)
BSC
16 9
8
1
10.65 (0.4193)
10.00 (0.3937)
7.60 (0.2992)
7.40 (0.2913)
10.50 (0.4134)
10.10 (0.3976)
8°
0°
0.75 (0.0295)
0.25 (0.0098) × 45°
1.27 (0.0500)
0.40 (0.0157)
0.33 (0.0130)
0.20 (0.0079)
COPLANARITY
0.10
Figure 15. 16-Lead Standard Small Outline Package [SOIC_W]
Wide Body (RW-16)
Dimension shown in millimeters and (inches)
ORDERING GUIDE
Model
Number of
Inputs,
VDD1 Side
Number of
Inputs,
VDD2 Side
Maximum
Data Rate
(Mbps)
Maximum
Propagation
Delay, 5 V (ns)
Maximum
Pulse Width
Distortion (ns) Temperature Range (°C)
Package
Option
ADuM5200ARWZ1, 0 0 0 0 0 −40 to +105 16-Lead SOIC_W
1 Tape and reel are available. The additional “-RL7” suffice designates a 7” (1,000 units) tape and reel options.
