ADUM3470CRSZ Analog Devices Inc, ADUM3470CRSZ Datasheet
ADUM3470CRSZ
Specifications of ADUM3470CRSZ
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ADUM3470CRSZ Summary of contents
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... GENERAL DESCRIPTION The ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 1 devices are quad-channel, digital isolators with an integrated PWM controller and transformer driver for an isolated dc-to-dc converter. Based on the Analog Devices, Inc., iCoupler® technology, the dc-to-dc converter provides regulated, isolated power at 3 from a 5.0 V input supply or from a 3.3 V supply ...
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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 ...
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SPECIFICATIONS ELECTRICAL CHARACTERISTICS—5 V PRIMARY INPUT SUPPLY/5 V SECONDARY ISOLATED SUPPLY 4.5 V ≤ ≤ 5 DD1 DDA DD2 application schematic in Figure 38. All minimum/maximum specifications apply over the entire recommended ...
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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 ...
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ELECTRICAL CHARACTERISTICS—3.3 V PRIMARY INPUT SUPPLY/3.3 V SECONDARY ISOLATED SUPPLY 3.0 V ≤ ≤ 3 DD1 DDA DD2 REG application schematic in Figure 38. All minimum/maximum specifications apply over the entire recommended ...
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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 ...
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ELECTRICAL CHARACTERISTICS—5 V PRIMARY INPUT SUPPLY/3.3 V SECONDARY ISOLATED SUPPLY 4.5 V ≤ ≤ 5 DD1 DDA DD2 application schematic in Figure 38. All minimum/maximum specifications apply over the entire recommended operating ...
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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 ...
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ELECTRICAL CHARACTERISTICS—5 V PRIMARY INPUT SUPPLY/15 V SECONDARY ISOLATED SUPPLY 4.5 V ≤ ≤ 5 DD1 DDA REG application schematic in Figure 39. All minimum/maximum specifications apply over the entire recommended operating ...
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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 ...
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PACKAGE CHARACTERISTICS Table 5. Parameter 1 Resistance (Input to Output) 1 Capacitance (Input to Output) 2 Input Capacitance IC Junction to Ambient Thermal Resistance Thermal Shutdown Thermal Shutdown Threshold Thermal Shutdown Hysteresis 1 The device is considered a 2-terminal device: ...
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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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ABSOLUTE MAXIMUM RATINGS Ambient temperature = 25°C, unless otherwise noted. Table 10. Parameter Rating Storage Temperature Range (T ) −55°C to +150°C ST Ambient Operating Temperature −40°C to +105°C Range ( Supply Voltages ...
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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 3.0 ...
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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 ...
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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. ...
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Table 15. ADuM3473 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 ...
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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. ...
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TYPICAL PERFORMANCE CHARACTERISTICS 1500 1400 1300 1200 1100 1000 900 800 700 600 500 400 300 200 100 100 150 200 250 300 R (Ω) OC Figure 9. Switching Frequency ( ...
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ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 LOAD CURRENT (mA) Figure 15 Out Efficiency at Various Switching Frequencies with Halo Transformer 80 ...
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ISO 3.3V CC ISO V = 3.3V 3. ISO DATA RATE (Mbps) Figure 21. Typical ...
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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 ...
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C = 47µ 47µ 47µH OUT 47µ 100µ 100µH OUT 200 10% LOAD 90% LOAD 100 0 – ...
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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 (D) ...
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APPLICATIONS INFORMATION THEORY OF OPERATION The dc-to-dc converter section of the ADuM347x uses a secondary side controller architecture with isolated pulse-width modulation (PWM) feedback. V power is supplied to an oscillating circuit CC that switches current to the primary of ...
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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 ...
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... V Figure 30 to Figure 33. resistor OC COMPONENT SELECTION The ADuM347x digital isolators with 2 W dc-to-dc converters resistance require no external interface circuitry for the logic interfaces. Power OC supply bypassing is required at the input and output supply pins. Note that a low ESR ceramic bypass capacitor of 0.1 μF is required on Side 1 between Pin 9 and Pin 10, and on Side 2 between Pin 18 and Pin 19, as close to the chip pads as possible ...
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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 ...
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DC CORRECTNESS AND MAGNETIC FIELD IMMUNITY Positive and negative logic transitions at the isolator input cause narrow (~1 ns) pulses to be sent to the decoder via the transformer. The decoder is bistable and is, therefore, either set or reset ...
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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 ...
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When power is removed from V , the primary side converter CC and coupler shut down when the UVLO level is reached. The secondary side stops receiving power and starts to discharge. The outputs on the secondary side hold the ...
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... ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 OUTLINE DIMENSIONS 2.00 MAX 0.05 MIN COPLANARITY 0.10 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. ...