ADUM4471ARIZ
ActiveISOLATED SWITCH REGULATOR WITH QUAD-CHANNEL ISOLATORS (3/1 CHANNEL DIRECTIONALITY)
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ADUM4471ARIZ
ActiveISOLATED SWITCH REGULATOR WITH QUAD-CHANNEL ISOLATORS (3/1 CHANNEL DIRECTIONALITY)
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Technical Specifications
Parameters and characteristics for this part
| Specification | ADUM4471ARIZ |
|---|---|
| Channel Type | Unidirectional |
| Common Mode Transient Immunity (Min) [Min] | 25 kV/µs |
| Data Rate | 1 Mbps |
| Inputs - Side 1/Side 2 [custom] | 3 |
| Inputs - Side 1/Side 2 [custom] | 1 |
| Isolated Power | True |
| Mounting Type | Surface Mount |
| Number of Channels [custom] | 4 |
| Operating Temperature [Max] | 105 ░C |
| Operating Temperature [Min] | -40 C |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) |
| Propagation Delay tpLH / tpHL (Max) [Max] | 100 ns |
| Pulse Width Distortion (Max) [Max] | 40 ns |
| Rise / Fall Time (Typ) [custom] | 2.5 ns |
| Rise / Fall Time (Typ) [custom] | 2.5 ns |
| Supplier Device Package | 20-SOIC-IC |
| Technology | Magnetic Coupling |
| Type | General Purpose |
| Voltage - Supply [Max] | 5.5 V, 3.6 V |
| Voltage - Supply [Min] | 3 V, 4.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | Updated |
|---|---|---|---|---|
| Digikey | Tube | 62 | $ 9.22 | 1w |
Description
General part information
ADUM4471 Series
TheADuM4470/ ADuM4471 /ADuM4472/ADuM4473/ADuM4474are quad-channel, digital isolations with a regulated DC/DC isolated power supply controller with an internal MOSFET driver. The DC/DC controller has an internal isolated PWM feedback from the secondary side based on theiCoupler®chip scale transformer technology and complete loop compensation. This eliminates the need to use an optocoupler for feedback and compensates the loop for stability.The ADuM447x isolator provides a more stable output voltage and higher efficiency compared to unregulated isolated dc-to-dc power supplies. The fully integrated feedback and loop compensation in a wide-body SOIC package provide a smaller form factor and 8.3 mm creepage distance solution.The regulated feedback provides a relatively flat efficiency curve over the full output power range. The ADuM3070 enables a DC/DC converter with a 3.3 V to 24 V isolated output voltage range from either a 5.0 V or a 3.3 V input voltage, with an output power of up to 2.5 W.The ADuM447x isolators provide four independent isolation channels in a variety of channel configurations and data rates. (The x in ADuM447x throughout this data sheet stands for the ADuM4470 / ADuM4471 / ADuM4472 / ADuM4473 / ADuM4474).APPLICATIONSPower supply startup bias and gate drivesIsolated sensor interfacesProcess controlsRS-232/RS-422/RS-485 transceivers
