adum3471 Analog Devices, Inc., adum3471 Datasheet
adum3471
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... One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 Fax: 781.461.3113 T1 RECT V REG X2 ADuM3470/ADuM3471/ ADuM3472/ADuM3473/ ADuM3474 V DD2 REG 5V FB SECONDARY FB CONTROLLER OC CHA CHB I/OA SECONDARY DATA I/O I/OB CHC 4CH I/OC CHD I/OD GND 2 ADuM3471 ADuM3472 ADuM3474 www.analog.com ©2010 Analog Devices, Inc. All rights reserved. V ISO ...
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... ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 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 .......................................................... 7 Electrical Characteristics—5 V Primary Input Supply/15 V Secondary Isolated Supply ...
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... ADuM3470 ADuM3471 ADuM3472 ADuM3473 ADuM3474 I Supply Current, Full V Load CC ISO I/O Input Currents Logic High Input Threshold Logic Low Input Threshold ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 = 500 kHz; all voltages are relative to their respective grounds; see the REG ISO SW = 25° 5 DD1 DDA ...
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... ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 Parameter Logic High Output Voltages Logic Low Output Voltages AC SPECIFICATIONS ADuM347xARWZ Minimum Pulse Width Maximum Data Rate Propagation Delay Pulse Width Distortion, |t − PLH PHL Propagation Delay Skew Channel-to-Channel Matching ADuM347xCRWZ Minimum Pulse Width Maximum Data Rate Propagation Delay Pulse Width Distortion, |t − ...
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... ADuM3470 ADuM3471 ADuM3472 ADuM3473 ADuM3474 I Supply Current, Full V Load CC ISO I/O Input Currents Logic High Input Threshold Logic Low Input Threshold ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 = 500 kHz; all voltages are relative to their respective grounds; see the ISO SW = 25° 3 DD1 DDA Symbol ...
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... ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 Parameter Logic High Output Voltages Logic Low Output Voltages AC SPECIFICATIONS ADuM347xARWZ Minimum Pulse Width Maximum Data Rate Propagation Delay Pulse Width Distortion, |t − PLH PHL Propagation Delay Skew Channel-to-Channel Matching ADuM347xCRWZ Minimum Pulse Width Maximum Data Rate Propagation Delay Pulse Width Distortion, |t − ...
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... ADuM3470 ADuM3471 ADuM3472 ADuM3473 ADuM3474 I Supply Current, Full V Load CC ISO I/O Input Currents Logic High Input Threshold Logic Low Input Threshold ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 = 500 kHz; all voltages are relative to their respective grounds; see the REG ISO SW = 25° 5 DD1 DDA ...
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... ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 Parameter Logic High Output Voltages Logic Low Output Voltages AC SPECIFICATIONS ADuM347xARWZ Minimum Pulse Width Maximum Data Rate Propagation Delay Pulse Width Distortion, |t − PLH PHL Propagation Delay Skew Channel-to-Channel Matching ADuM347xCRWZ Minimum Pulse Width Maximum Data Rate Propagation Delay Pulse Width Distortion, |t − ...
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... ADuM3471 ADuM3472 ADuM3473 ADuM3474 I Supply Current, Full V Load CC ISO I/O Input Currents Logic High Input Threshold Logic Low Input Threshold ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 = 5 500 kHz; all voltages are relative to their respective grounds; see the ISO DD2 SW = 25° 5 DD1 DDA ...
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... ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 Parameter Logic High Output Voltages Logic Low Output Voltages AC SPECIFICATIONS ADuM347xARWZ Minimum Pulse Width Maximum Data Rate Propagation Delay Pulse Width Distortion, |t − PLH PHL Propagation Delay Skew Channel-to-Channel Matching ADuM347xCRWZ Minimum Pulse Width Maximum Data Rate Propagation Delay Pulse Width Distortion, |t − ...
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... File E214100 1 In accordance with UL 1577, each ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 is proof tested by applying an insulation test voltage of ≥3000 V rms for 1 sec (current leakage detection limit = 10 μA accordance with DIN V VDE V 0884-10, each of the ADuM347x is proof tested by applying an insulation test voltage of ≥1050 V peak for 1 sec (partial discharge detection limit = 5 pC) ...
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... ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 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 asterisk (*) marking on packages denotes DIN V VDE V 0884-10 approval. Table 8. Description Installation Classification per DIN VDE 0110 For Rated Mains Voltage ≤ ...
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... Refers to common-mode transients across the insulation barrier. Common- mode transients exceeding the absolute maximum ratings may cause latch-up or permanent damage. ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 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 ...
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... ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS Table 12. ADuM3470 Pin Function Descriptions Pin No. Mnemonic Description 1 X1 Transformer Driver Output GND Ground 1. Ground reference for isolator primary Transformer Driver Supply Voltage 3 5.5 V. Connect to V DD1 GND . Transformer Driver Output Logic Input A ...
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... Table 13. ADuM3471 Pin Function Descriptions Pin No. Mnemonic Description 1 X1 Transformer Driver Output GND Ground 1. Ground reference for isolator primary Transformer Driver Supply Voltage 3 5.5 V. Connect to V DD1 GND . Transformer Driver Output Logic Input Logic Input B. ...
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... ADuM3470/ADuM3471/ADuM 3472/ADuM3473/ADuM3474 Table 14. ADuM3472 Pin Function Descriptions Pin No. Mnemonic Description 1 X1 Transformer Driver Output GND Ground 1. Ground reference for isolator primary Transformer Driver Supply Voltage 3 5.5 V. Connect to V DD1 GND . Transformer Driver Output Logic Input Logic Input B. ...
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... The Internal Supply Voltage Pin for the Secondary Side Controller and Side 2 Data Channels. When a sufficient external DD2 voltage is supplied to V 5.5 V range. Connect a 0.1 μF bypass capacitor from The Input of an Internal Regulator to Power the Secondary Side Controller and Side 2 Data Channels. V REG the 5 range to regulate the V ADuM3470/ADuM3471/ADuM REG *GND 2 GND ...
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... ADuM3470/ADuM3471/ADuM 3472/ADuM3473/ADuM3474 Table 16. ADuM3474 Pin Function Descriptions Pin No. Mnemonic Description 1 X1 Transformer Driver Output GND Ground 1. Ground reference for isolator primary Transformer Driver Supply Voltage 3 5.5 V. Connect to V DD1 GND . Transformer Driver Output Logic Output Logic Output B. ...
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... LOAD CURRENT (mA) Figure 11. Typical Efficiency Out at Various Switching Frequencies with Halo Transformer ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 350 400 450 500 Figure 12 Out Efficiency over Temperature with Coilcraft Resistance OC 1MHz 700kHz 500kHz 200kHz ...
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... ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 LOAD CURRENT (mA) Figure 15 Out Efficiency at Various Switching Frequencies with Halo Transformer LOAD CURRENT (mA) Figure 16 Out Efficiency over Temperature with Coilcraft ...
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... 12V CC ISO DATA RATE (Mbps) Figure 23. Typical Double Supply I Supply Current per Reverse Data CH Channel (15 pF Output Load) ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 Figure 24. Typical Double Supply Figure 25. Typical Double Supply I ...
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... ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 TIME (ms) Figure 27. Typical V Startup 3.3 V Out with 10 mA, 50 mA, and ISO 400 mA Output Load TIME (ms) Figure 28. Typical V Startup 3 3.3 V Out with 10 mA, 50 mA, and ISO 250 mA Output Load ...
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... Output Ripple Out at 400 mA Load at ISO 500 kHz f SW 3.34 3.32 3.30 3. –2 –1 0 TIME (µs) Figure 35. Typical V Output Ripple 3.3 V Out at 400 mA Load at ISO 500 kHz f SW ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 3.34 3.32 3.30 3. –2 Figure 36. Typical V SW 15.4 15.2 15.0 14.8 14 ...
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... ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 TERMINOLOGY the minimum operating current drawn at the V CC (Q) input when there is no external load at V are operating below 2 Mbps, requiring no additional dynamic supply current ( the typical input supply current with all channels CC (D) simultaneously driven at a maximum data rate of 25 Mbps with the full capacitive load representing the maximum dynamic load conditions ...
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... 47µH 47µF C OUT1 C OUT2 D2 L2 47µF 47µ REG 2 GND 19 GND 1 2 0.1µF ADuM3470/ 3 VDD1 18 VDD2 +5V ADuM3471 ADuM3472/ 5 I/OA 16 I/OA ADuM3473/ 6 I/OB 15 I/OB ADuM3474 7 I/OC 14 I/OC 8 I/OD 13 I/OD R 100kΩ DDA 10 GND 11 GND × (R1 + R2)R2 ISO FB Figure 40 ...
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... ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 TRANSFORMER DESIGN Transformers have been designed for use in the circuits shown in Figure 38, Figure 39, and Figure 40 and are listed in Table 18. The design of a transformer for the ADuM347x can differ from some isolated dc-to-dc converter designs that do not regulate the output voltage. The output voltage is regulated by a PWM controller ...
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... This open-loop mode is selected when the OC pin is connected high to the V pin. In open-loop mode, the DD2 switching frequency is 318 kHz. ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 ET Constant Total Primary Total Primary (V × μs Min) Inductance (μH) Resistance (Ω) ...
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... ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 Inductors must be selected based on the value and supply current needed. Most applications with switching frequencies between 500 kHz and 1 MHz and load transients between 10% and 90% of full load are stable with the 47 μH inductor value listed in Table 19. Values as large as 200 μH can be used for power supply applications ...
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... MAGNETIC FIELD FREQUENCY (Hz) Figure 43. Maximum Allowable External Magnetic Flux Density ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 For example magnetic field frequency of 1 MHz, the maximum allowable magnetic field of 0.2 kgauss induces a voltage of 0. the receiving coil. This is about 50% of the sensing threshold and does not cause a faulty output transition. ...
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... ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 POWER CONSUMPTION The V power supply input provides power to the i Coupler data CC channels, as well as to the power converter. For this reason, the quiescent currents drawn by the data converter and the primary and secondary I/O channels cannot be determined separately. All of these quiescent power demands have been combined into the I current, as shown in Figure 45 ...
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... Figure 46, Figure 47, and Figure 48 illustrate these different isolation voltage waveforms. ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 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. ...
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... ORDERING GUIDE Number Number of Inputs, of Inputs Model V Side V Side CC ISO ADuM3470ARSZ 4 0 ADuM3470CRSZ 4 0 ADuM3471ARSZ 3 1 ADuM3471CRSZ 3 1 ADuM3472ARSZ 2 2 ADuM3472CRSZ 2 2 ADuM3473ARSZ 1 3 ADuM3473CRSZ 1 3 ADuM3474ARSZ 0 4 ADuM3474CRSZ Tape and reel are available. The addition of an RL7 suffix designates a 7” (500 units) tape and reel option. ...