Texas Instruments UCC34141-Q1 Isolated DC/DC Modules

Texas Instruments UCC34141-Q1 Isolated DC/DC Modules feature TI's IsoShield technology, a proprietary multichip packaging solution that delivers up to three times the power density of discrete solutions in isolated power designs. These automotive-qualified DC/DC power modules offer high isolation voltage and deliver power to SiC and IGBT isolated gate drivers. The UCC34141-Q1's proprietary integrated transformer, advanced control architectures, and flip-chip package achieve high power density, low noise, and low system BOM. These devices deliver 1.5W typical output power at +85°C ambient temperature, and the highly accurate dual-output voltages can be easily set by resistor dividers, enabling low on-resistance and fast, reliable switching for SiC/IGBT. The UCC34141-Q1 isolated DC/DC modules from TI feature a 16-pin wide-body SOIC package with 8.2mm creepage and clearance to ensure high isolation. The UCC34141-Q1 devices are AEC-Q100 qualified for automotive applications.

Features

Fully integrated high-density isolated DC/DC module with an isolation planar transformer
Wide input range of 5.5V to 28V (with 22V OVLO)
Programmable (VDD – COM) output voltage with 15V to 20V, ≤ ±1.5% total regulation accuracy
Programmable (VEE – COM) output voltage with -2V to -8V, ≤ ±5% total regulation accuracy
Adaptive spread spectrum modulation (SSM)
Strong magnetic and radiated field immunities
Reduced inrush current soft-start
ENA pin for logic enable and programming input UVLO
Open-drain power-good for fault indicator

Integrated protections include UVLO, OVLO, short-circuit, OVP, UVP, and thermal shutdown
<3pF isolation capacitance
> ±250kV/µs static and dynamic CMTI
AEC-Q100 qualified for automotive applications (temperature grade 1:-40°C ≤ T_A ≤ +125°C)
Safety-related certifications (planned)
- Reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
- UL 1577 / CSA component recognition program
16-pin, wide-body SOIC package

Applications

Hybrid, electric, and power train systems (EV/HEV)
- Inverters and motor control
- Onboard (OBC) and wireless chargers
- DC/DC converters
Industrial transport, such as off-highway vehicle electric drives

Grid infrastructure
- EV charging station power modules
- DC charging (pile) stations
- String inverters
Power delivery, including rack and server power