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ADuM347x Isolated DC/DC Controller
Featuring a quad iCoupler® digital isolator from Analog Devices
ADI's ADuM347x device is a quad-channel digital isolator with an integrated transformer driver for an isolated DC/DC converter. Based on ADI's 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 up to 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.
Features
- Integrated transformer driver for isolated DC/DC converter
- Regulated adjustable output: 3.3 V to 24 V
- 2 W output power
- 70% efficiency at maximum load of 400 mA at 5.0 V output
- Quad DC-to-25 Mbps (NRZ) signal isolation channels
- Schmitt trigger inputs
- 20-lead SSOP package
- High temperature operation: 105°C
- High common-mode transient immunity: > 25 kV / µs
- 200 kHz to 1 MHz oscillator frequency with adjust function
- Soft start function at power-up
- Pulse-by-pulse overcurrent protection
- Thermal shutdown
- 2500 VRMS isolation
Applications
- RS-232 / RS-422 / RS-485 transceivers
- Industrial field bus isolation
- Power supply startup bias and gate drives
- Isolated sensor interfaces
- Process controls
ADuM347x
| Image | Manufacturer Part Number | Description | Function | Embedded | Utilized IC / Part | Available Quantity | View Details | |
|---|---|---|---|---|---|---|---|---|
 |  | EVAL-ADUM3471EBZ | EVALUATION MODULE FOR ADUM3471 | Digital Isolator | No | - | 1 - Immediate | View Details |
Published: 2012-09-19
Hong Kong, China