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ADUM3473ARSZ

ANALOG DEVICES  ADUM3473ARSZ  数字隔离器, 4通道, 55 ns, 4.5 V, 5.5 V, SSOP, 20 引脚

Product Details

The ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 devices are quad-channel, digital isolators with an integrated PWM controller and transformer driver for an isolated DC/DC converter. Based on the Analog Devices, Inc., iCoupler® technology, the DC/DC converter provides up to 2 W of regulated, isolated power at 3.3 V to 24 V from a 5.0 V input supply or from a 3.3 V supply. This eliminates the need for a separate, isolated DC/DC converter in 2 W isolated designs. The iCoupler chip-scale transformer technology is used to isolate the logic signals, and the integrated transformer driver with isolated secondary side control provides higher efficiency for the isolated DC/DC converter. The result is a small form factor, total isolation solution.

The ADuM347x isolators provide four independent isolation channels in a variety of channel configurations and data rates.

**Applications**

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RS-232/RS-422/RS-485 transceivers
.
Industrial field bus isolation
.
Power supply startup bias and gate drives
.
Isolated sensor interfaces
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Process controls

### Features and Benefits

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Isolated PWM Controller
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Integrated transformer driver
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Regulated adjustable output: 3.3 V to 24 V
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2 W output power
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70% efficiency at guaranteed load of 400 mA at 5.0 V output
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Quad dc-to-25 Mbps NRZ signal isolation channels
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20-lead SSOP package
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High temperature operation: 105°C
.
High common-mode transient immunity: >25 kV/μs
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200 kHz to 1 MHz adjustable oscillator frequency
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Soft start function at power-up
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Pulse-by-pulse overcurrent protection
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Thermal shutdown
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2500 V rms isolation
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Evaluation Board available
.
Automotive Qualified

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