ADUM4473ARIZ
ActiveISOLATED SWITCH REGULATOR WITH QUAD-CHANNEL ISOLATORS (1/3 CHANNEL DIRECTIONALITY)
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ADUM4473ARIZ
ActiveISOLATED SWITCH REGULATOR WITH QUAD-CHANNEL ISOLATORS (1/3 CHANNEL DIRECTIONALITY)
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Technical Specifications
Parameters and characteristics for this part
| Specification | ADUM4473ARIZ |
|---|---|
| Channel Type | Unidirectional |
| Common Mode Transient Immunity (Min) [Min] | 25 kV/µs |
| Data Rate | 1 Mbps |
| Inputs - Side 1/Side 2 | 1, 3 |
| 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
Description
General part information
ADUM4473 Series
ADuM4470/ADuM4471/ADuM4472/ ADuM4473 /ADuM4474is a four-channel digital isolator with integrated regulated DC-DC isolated power supply controller and integrated internal MOSFET driver. The DC/DC controller has a built-in isolated PWM feedback on the primary side, usingiCoupler®chip-level transformer technology and complete loop compensation. It is not necessary to use an optocoupler for feedback and to compensate the loop for stability.Compared to unregulated isolated DC/DC power supplies, ADuM447x isolators can provide a more stable output voltage and higher efficiency. It is packaged in a wide-body SOIC, fully integrated feedback and loop compensation, providing a smaller size and 8.3 mm creepage distance solution. Regulated feedback can provide a relatively flat efficiency curve over the entire output power range. AduM3070 can enable a DC/DC converter with an isolated output voltage range of 3.3 V to 24 V from an input voltage of 5.0 V or 3.3 V, with an output power of 2.5 WADuM447x isolators provide four independent isolation channels, supporting multiple channel configurations and data rates. (The ADuM447x mentioned in this data sheet represents ADuM4470 / ADuM4471 / ADuM4472 / ADuM4473 / ADuM4474)APPLICATIONSPower startup bias and gate driveIsolation sensor interfaceProcess controlRS-232/RS-422/RS-485 transceiver
