Texas Instruments UCC33420/UCC33420-Q1 1.5W Isolated DC/DC Modules

Texas Instruments UCC33420/UCC33420-Q1 Automotive-Qualified 1.5W Isolated DC/DC Modules feature a 3kV_RMS isolation rating for providing efficient, isolated power to isolated circuits that require a bias supply with a well-regulated output voltage. TI UCC33420/UCC33420-Q1 integrates a transformer and DC/DC controller with a proprietary architecture to provide 1.5W (typical) isolated power with low EMI.

The UCC33420/UCC33420-Q1 integrates protection features for increased system robustness. The device also has an enable pin, a fault reporting mechanism, and a regulated 5.0V with a selectable headroom output voltage of 5.5V. This TI device comes in a miniaturized VSON package with a 1mm height (typical).

Features

High-efficiency DC/DC power module with integrated transformer technology
AEC-Q100 qualified (UCC33420-Q1)
-40°C to +125°C ambient operating temperature range
Functional safety-capable
Adaptive spread spectrum modulation (SSM)
Meets CISPR-25 Class 5 emission
Robust isolation barrier
- 3kV_RMS isolation rating
- 6.5kV_PK surge capability
- 1159V_PK working voltage
- 200V/nS common mode transient immunity
Strong magnetic fields immunity
Overload and short-circuit protection

1.5W maximum output power
4.5V to 5.5V input voltage
5.0V, 5.5V regulated selectable output voltage
Thermal shutdown
Low inrush current soft-start
Enable pin with a fault reporting mechanism
12-pin VSON-FCRLF package
>4.1mm creepage and clearance
Planned safety-related certifications
- Basic isolation per DIN EN IEC 60747-17 (VDE 0884-17)
- UL 1577 / CSA component recognition program
- UL certification per IEC 62368-1, and IEC 60601-1 end equipment standards