ADUM4472CRIZ-RL
ActiveISOLATED SWITCH REGULATOR WITH QUAD-CHANNEL ISOLATORS (2/2 CHANNEL DIRECTIONALITY)
ADUM4472CRIZ-RL
ActiveISOLATED SWITCH REGULATOR WITH QUAD-CHANNEL ISOLATORS (2/2 CHANNEL DIRECTIONALITY)
Description
General part information
ADUM4472 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/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
Technical Specifications
Parameters and characteristics for this part
| Specification | ADUM4472CRIZ-RL |
|---|---|
| Channel Type | Unidirectional |
| Common Mode Transient Immunity (Min) | 25 kV/µs |
| Data Rate | 25 MBd |
| Fall Time (Typ) | 2.5 ns |
| Inputs - Side 1 | 2 |
| Inputs - Side 2 | 2 |
| Isolated Power | Yes |
| Mounting Type | Surface Mount |
| Number of Channels | 4 |
| Operating Temperature (Max) | 105 °C |
| Operating Temperature (Min) | -40 °C |
| Package Length | 0.295 in |
| Package Name | 20-SOIC, 20-SOIC-IC |
| Package Width | 7.5 mm |
| Propagation Delay tpHL (Max) | 60 ns |
| Propagation Delay tpLH (Max) | 60 ns |
| Pulse Width Distortion (Max) | 6 ns |
| Rise Time (Typ) | 2.5 ns |
| Technology | Magnetic Coupling |
| Type | General Purpose |
| Voltage - Isolation | 5000 Vrms |
| Voltage - Supply (Range 1 Maximum) | 3.6 V |
| Voltage - Supply (Range 1 Minimum) | 3 V |
| Voltage - Supply (Range 2 Maximum) | 5.5 V |
| Voltage - Supply (Range 2 Minimum) | 4.5 V |
Pricing
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