Overview
The ADUM3472WARSZ from Analog Devices Inc. is a versatile electronic component that integrates quad-channel digital isolators with an integrated PWM controller and transformer driver for an isolated DC/DC converter. This device is part of the ADuM347x series, which includes the ADuM3470, ADuM3471, ADuM3473, and ADuM3474, each offering unique features to meet diverse application needs. The ADUM3472WARSZ provides up to 2 W of regulated, isolated power at voltages ranging from 3.3 V to 24 V, eliminating the need for a separate DC/DC converter in 2 W isolated designs. This makes it a cost-effective and space-saving solution for various applications.
Key Specifications
| Parameter | Value | Unit | Test Conditions/Comments |
|---|---|---|---|
| Minimum Operating Supply Voltage (VDD1, VDD2) | 3.0 / 4.5 | V | |
| Maximum Operating Supply Voltage (VDD1, VDD2) | 3.6 / 5.5 | V | |
| Isolated Output Voltage (VISO) | 3.0 to 3.6 | V | IISO = 0 mA |
| Feedback Voltage Setpoint (VFB) | 1.125 to 1.375 | V | IISO = 0 mA |
| Maximum Output Supply Current (IISO) | 400 mA | VISO = 5.0 V | |
| Efficiency at Maximum Output Supply Current | 70% | IISO = IISO (MAX) | |
| Switching Frequency (fSW) | 1000 kHz to 1 MHz | Adjustable | |
| Package/Case | SSOP-20 | ||
| Operating Temperature | -40°C to 105°C | ||
| Common-Mode Transient Immunity | >25 kV/µs |
Key Features
- Data transmission up to 10 Mbps
- Differential output stage
- Low power consumption
- Synchronization feature
- Bus-powered configuration available
- Integrated PWM controller and transformer driver for isolated DC/DC converter
- Quad-channel digital isolators
- Regulated adjustable output: 3.3 V to 24 V
- Soft start function at power-up
- Pulse-by-pulse overcurrent protection and thermal shutdown
Applications
- RS-232/RS-422/RS-485 transceivers
- Industrial field bus isolation
- Power supply start-up bias and gate drives
- Isolated sensor interfaces
- Process controls
- Automotive system integration
- Efficient power management
- Isolated signal conditioning
Q & A
- Q: What is the ADUM3472WARSZ used for?
A: The ADUM3472WARSZ is used for providing isolated power and signal isolation in various applications, including industrial field buses, power supply start-up, isolated sensor interfaces, and automotive systems. - Q: What are the key features of the ADUM3472WARSZ?
A: Key features include quad-channel digital isolators, an integrated PWM controller and transformer driver, regulated adjustable output from 3.3 V to 24 V, and high common-mode transient immunity. - Q: What is the maximum output power of the ADUM3472WARSZ?
A: The maximum output power is up to 2 W. - Q: What is the operating temperature range of the ADUM3472WARSZ?
A: The operating temperature range is -40°C to 105°C. - Q: Is the ADUM3472WARSZ qualified for automotive applications?
A: Yes, it is qualified for automotive applications and meets the AEC-Q100 standard. - Q: What is the package type of the ADUM3472WARSZ?
A: The package type is SSOP-20. - Q: Does the ADUM3472WARSZ have overcurrent protection?
A: Yes, it has pulse-by-pulse overcurrent protection and thermal shutdown. - Q: What is the data rate of the isolators in the ADUM3472WARSZ?
A: The data rate can be up to 10 Mbps. - Q: Is the ADUM3472WARSZ RoHS compliant?
A: Yes, it is RoHS compliant. - Q: What kind of warranty does the ADUM3472WARSZ come with?
A: It typically comes with a 1-year warranty, depending on the supplier.
