Isolated DC/DC Converter ADuM5000 Preliminary Technical Data FEATURES FUNCTIONAL BLOCK DIAGRAM 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 Figure 1ADuM5000 Functional Diagram 1 Protected by U.S. Patents 5,952,849, 6,873,065. and 7075 329 B2, Other patents pending. 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. Rev. PrA 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 ©2008 Analog Devices, Inc. All rights reserved. Preliminary Technical Data ADuM5000 TABLE OF CONTENTS Applications....................................................................................... 1 Absolute Maximum Ratings ............................................................8 Revision History ............................................................................... 2 ESD Caution...................................................................................8 Specifications..................................................................................... 3 Pin Configuration and Function Descriptions..............................9 Electrical Characteristics – 5V Primary Input Supply / 5V Secondary Isolated Supply .......................................................... 3 Application Information................................................................ 12 Electrical Characteristics – 3.3V Primary Input Supply / 3.3V Secondary Isolated Supply .......................................................... 4 Theory of operation ................................................................... 12 PC Board Layout ........................................................................ 12 Electrical Characteristics – 5V Primary Input Supply / 3.3V Secondary Isolated Supply .......................................................... 5 Thermal Analysis ....................................................................... 12 Package Characteristics ............................................................... 6 Outline Dimensions ....................................................................... 15 Insulation and Safety-Related Specifications............................ 6 Ordering Guide .......................................................................... 15 Insulation Lifetime ..................................................................... 13 DIN V VDE V 0884-10 (VDE V 0884-10) Insulation Characteristics .............................................................................. 7 Recommended Operating Conditions ...................................... 7 REVISION HISTORY Rev. PrA | Page 2 of 15 Preliminary Technical Data ADuM5000 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 Setpoint Line Regulation Load Regulation Output Ripple Symbol VISO VISO(LINE) VISO(LOAD) VISO(RIP) Output Noise VISO(N) 200 mVP-P Switching Frequency PWM Frequency IDD1 Supply Current, Full VISO load2 fOSC fPWM IDD1(Max) 180 625 290 MHz kHz mA 1 2 Min 4.7 Typ 5.0 1 1 75 All voltages are relative to their respective ground. IDD1(MAX) is the input current under full dynamic and VISO load conditions. Rev. PrA | Page 3 of 15 Max 5.4 5 Unit V mV/V % mVP-P Test Conditions IISO=0mA IISO=50mA, VDD1=4.5V to 5.5V IISO = 10mA to 100mA 5MHz Bandwidth, CBO=0.1μF ║ 6.6μF, IISO = 100mA 20MHz Bandwidth, CBO=0.1μF ║ 6.6μF, IISO = 100mA IISO=100mA ADuM5000 Preliminary Technical Data 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 Setpoint Line Regulation Load Regulation Output Ripple Symbol VISO VISO(LINE) VISO(LOAD) VISO(RIP) Output Noise VISO(N) 130 mVP-P Switching Frequency PWM Frequency IDD1 Supply Current, Full VISO load2 fOSC fPWM IDD1(Max) 180 625 175 MHz kHz mA 1 2 Min 3.0 Typ 3.3 1 1 50 All voltages are relative to their respective ground. IDD1(MAX) is the input current under full dynamic and VISO load conditions. Rev. PrA| Page 4 of 15 Max 3.6 5 Unit V mV/V % mVP-P Test Conditions IISO=0mA IISO=37.5 mA, VDD1=3.0V to 3.6V IISO = 6mA to 54mA 20MHz Bandwidth, CBO=0.1μF ║ 10μF, IISO = 90mA 20MHz Bandwidth, CBO=0.1μF ║ 10μF, IISO = 60mA IISO=100mA Preliminary Technical Data ADuM5000 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 Setpoint Line Regulation Load Regulation Output Ripple Symbol VISO VISO(LINE) VISO(LOAD) VISO(RIP) Output Noise VISO(N) 130 mVP-P Switching Frequency PWM Frequency IDD1 Supply Current, Full VISO load2 fSW fPWM IDD1(Max) 180 625 230 MHz kHz mA 1 2 Min 3.0 Typ 3.3 1 1 50 All voltages are relative to their respective ground. IDD1(MAX) is the input current under full dynamic and VISO load conditions. Rev. PrA | Page 5 of 15 Max 3.6 5 Unit V mV/V % mVP-P Test Conditions IISO=0mA IISO=50mA, VDD1=4.5V to 5.5V IISO = 10mA to 100mA 20MHz Bandwidth, CBO=0.1μF ║ 10μF, IISO = 100mA 20MHz Bandwidth, CBO=0.1μF ║ 10μF, IISO = 100mA IISO=100mA ADuM5000 Preliminary Technical Data PACKAGE CHARACTERISTICS Table 4. 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 θCA Thermal Shutdown Thermal Shutdown Threshold Thermal Shutdown Hysteresis TSSD TSSD-HYS Min Typ 1012 2.2 4.0 45 Max 150 20 Unit Ω pF pF °C/W °C °C Test Conditions f = 1 MHz Thermocouple located at center of package underside, test conducted on 4 layer board with thin traces3. 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. Input capacitance is from any input data pin to ground. 3 Refer to the Power Considerations section for thermal model definitions 2 Table 5. UL (Pending) Recognized under 1577 component recognition program1 Reinforced insulation, 2500 V rms isolation voltage File E214100 CSA (Pending) Approved under CSA Component Acceptance Notice #5A Reinforced insulation per CSA 60950-1-03 and IEC 60950-1, 400 V rms (566 V peak)maximum working voltage File 205078 VDE (Pending) Certified according to DIN V VDE V 0884-10 (VDE V 0884-10):2006-122 Reinforced insulation, 560 V peak 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 Rated Dielectric Insulation Voltage Minimum External Air Gap (Clearance) Symbol Value 2500 L(I01) >8 min Unit Conditions V rms 1 minute duration mm Measured from input terminals to output terminals, shortest distance through air >8 min mm Measured from input terminals to output terminals, shortest distance path along body 0.017 min mm Insulation distance through insulation >175 V DIN IEC 112/VDE 0303 Part 1 IIIa 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. PrA| Page 6 of 15 Preliminary Technical Data ADuM5000 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 Installation Classification per DIN VDE 0110 For Rated Mains Voltage ≤ 150 V rms For Rated Mains Voltage ≤ 300 V rms For Rated Mains Voltage ≤ 400 V rms Climatic Classification Pollution Degree per DIN VDE 0110, Table 1 Maximum Working Insulation Voltage Input-to-Output Test Voltage, Method B1 Input-to-Output Test Voltage, Method A After Environmental Tests Subgroup 1 After Input and/or Safety Test Subgroup 2 and Subgroup 3 Highest Allowable Overvoltage Safety-Limiting Values Case Temperature Side 1 Current Side 2 Current Insulation Resistance at TS Conditions VIORM × 1.875 = VPR, 100% production test, tm = 1 sec, partial discharge < 5 pC VIORM × 1.6 = VPR, tm = 60 sec, partial discharge < 5 pC Characteristic Unit VIORM VPR I to IV I to III I to II 40/105/21 2 560 1050 V peak V peak 896 672 V peak V peak VTR 4000 V peak TS IS1 IS2 RS 150 265 335 >109 °C mA mA Ω VPR VIORM × 1.2 = VPR, tm = 60 sec, partial discharge < 5 pC Transient overvoltage, tTR = 10 seconds Maximum value allowed in the event of a failure ( see Figure 2) VIO = 500 V RECOMMENDED OPERATING CONDITIONS 600 Safe Operating VDD1 Current (mA) Symbol 500 Table 8. Parameter Operating Temperature Supply Voltages1 VDD @ VSEL=0V VDD @ VSEL=5V 400 300 200 Symbol TA Min −40 Max +85 Unit °C VDD VDD 2.7 4.5 5.5 5.5 V V 100 1 0 0 50 100 150 All voltages are relative to their respective ground. 200 Am bient Tem pearture (°C) Figure 2. Thermal Derating Curve, Dependence of Safety Limiting Values on Case Temperature, per DIN EN 60747-5-2 Rev. PrA | Page 7 of 15 Preliminary Technical Data ADuM5000 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 9. Parameter Storage Temperature (TST) Ambient Operating Temperature (TA) Supply Voltages (VDD, VISO)1 Input Voltage (CTR,RCIN, VSEL)1, 2 Output Voltage (RCOUT)1, 2 Average Total Output Current 3 IISO Common-Mode Transients4 Rating −55°C to +150°C −40°C to +105°C −0.5 V to +7.0 V −0.5 V to VDDI + 0.5 V −0.5 V to VDDO + 0.5 V ESD CAUTION 100mA −100 kV/μs to +100 kV/μs 1 All voltages are relative to their respective ground. 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. Commonmode transients exceeding the Absolute Maximum Ratings may cause latchup or permanent damage. 2 Table 10. Maximum Continuous Working Voltage1 Parameter AC Voltage, Bipolar Waveform AC Voltage, Unipolar Waveform Basic Insulation Reinforced Insulation Max 424 DC Voltage Basic Insulation Reinforced Insulation 1 Constraint 50-year minimum lifetime 600 560 Unit V peak V peak V peak V peak 600 560 V peak V peak Maximum approved working voltage per IEC 60950-1 Maximum approved working voltage per IEC 60950-1 and VDE V 0884-10 Maximum approved working voltage per IEC 60950-1 Maximum approved working voltage per IEC 60950-1 and VDE V 0884-10 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 H H H H L L L RCIN Input X X X X EXT-PWM L H RCOUT Output FB-PWM FB-PWM FB-PWM FB-PWM RCIN L X VSEL Input1 H L H L X L X VDDI Input 5.0V 5.0V 3.3V 3.3V 5.0V X X VISO Output 5.0V 3.3V 5.0V 3.3V X X X Notes Master mode operation, Self Regulating Master mode operation, Self Regulating Master mode operation, Self Regulating Master mode operation, Self Regulating Slave mode operation, Regulation from another isoPower part. Low power mode, Converter disabled 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.. Rev. PrA | Page 8 of 15 Preliminary Technical Data ADuM5000 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. Rev. PrA | Page 9 of 15 ADuM5000 Preliminary Technical Data Typical Performance Characteristics 0.4 0.35 Efficiency 0.3 0.25 0.2 0.15 3.3V in / 3.3V out 0.1 5V in / 3.3V out 0.05 5V in / 5V out 0 0 0.02 0.04 0.06 0.08 0.1 0.12 Figure 7. Typical VISO Transient Load Response 5V Output 10%-90% Load Step Output Current (A) Figure 4. Typical Power Supply Efficiency at 5V/5V, 3.3V/3.3V and 5V/3.3V 0.12 Onput Current (A) 0.1 0.08 0.06 0.04 3.3V in / 3.3V out 0.02 5V in / 3.3V out 5V in / 5V out 0 0 0.05 0.1 0.15 0.2 0.25 0.3 Figure 8. Typical Transient Load Response 3V Output 10%-100% Load Step 0.35 Input Current (A) 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 4 Input Current (A) and Power (W) 3.5 3 2.5 2 Idd 1.5 Pow er 1 0.5 0 3 3.5 4 4.5 5 5.5 6 6.5 Input Voltage (V) Figure 6. Typical Short Circuit Input Current and Power vs. VDD supply voltage Rev. PrA| Page 10 of 15 Preliminary Technical Data ADuM5000 Figure 10. Typical Viso=3.3V Output Voltage Ripple at 90% Load Figure 9. Typical Viso=5V Output Voltage Ripple at 90% Load Rev. PrA | Page 11 of 15 ADuM5000 Preliminary Technical Data 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 Rev. PrA| Page 12 of 15 Preliminary Technical Data ADuM5000 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. that the ADuM5000, ADuM5200, and ADuM5400 can only be used in certain master slave combinations as listed in Table 13. Slave ADuM5000 Master ADuM5200 ADuM5400 ADuM5000 Y Y N ADuM5200 N N N 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 1 Unit Power 0 ADuM5000 Master 2 ADuM520x Master 4 ADuM540x Master 6 ADuM540x Master ADuM12xx 2 Unit Power ADuM5000 Master ADuM5000 Slave ADuM500x Master ADuM5200 Slave ADuM540x Master ADuM5200 Slave ADuM540x Master ADuM520x Slave 3 Unit Power ADuM5000 Master ADuM5000 Slave ADuM5000 Slave ADuM5000 Master ADuM5000 Slave ADuM520x Slave ADuM540x Master ADuM5000 Slave ADuM5000 Slave ADuM540x Master ADuM520x Slave ADuM5000 Slave POWER CONSIDERATIONS Table 14 Configurations for Power and Data Channels 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 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 Rev. PrA | Page 13 of 15 ADuM5000 Preliminary Technical Data 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. 05007-021 RATED PEAK VOLTAGE 0V Figure 12. Bipolar AC Waveform 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. 05007-022 RATED PEAK VOLTAGE 0V Figure 13. Unipolar AC Waveform 05007-023 RATED PEAK VOLTAGE 0V 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. Rev. PrA| Page 14 of 15 Preliminary Technical Data ADuM5000 OUTLINE DIMENSIONS 10.50 (0.4134) 10.10 (0.3976) 9 16 7.60 (0.2992) 7.40 (0.2913) 8 1 1.27 (0.0500) BSC 0.75 (0.0295) × 45° 0.25 (0.0098) 2.65 (0.1043) 2.35 (0.0925) 0.30 (0.0118) 0.10 (0.0039) COPLANARITY 0.10 10.65 (0.4193) 10.00 (0.3937) 0.51 (0.0201) 0.31 (0.0122) SEATING PLANE 8° 0.33 (0.0130) 0° 0.20 (0.0079) 1.27 (0.0500) 0.40 (0.0157) COMPLIANT TO JEDEC STANDARDS MS-013-AA 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. Figure 15. 16-Lead Standard Small Outline Package [SOIC_W] Wide Body (RW-16) Dimension shown in millimeters and (inches) ORDERING GUIDE Model ADuM5200ARWZ1, 1 Number of Inputs, VDD1 Side 0 Number of Inputs, VDD2 Side 0 Maximum Data Rate (Mbps) 0 Maximum Propagation Delay, 5 V (ns) 0 Maximum Pulse Width Package Distortion (ns) Temperature Range (°C) Option 0 −40 to +105 16-Lead SOIC_W Tape and reel are available. The additional “-RL7” suffice designates a 7” (1,000 units) tape and reel options. Rev. PrA | Page 15 of 15 PR07539-0-5/08(PrA)