Calculation tool
UCC34141-Q1-CALC — UCC34141-Q1 design calculator tool
Design calculator tool to generate external BOM based on system requirement
UCC34141-Q1
Automotive, 5.5V-to-20V VIN, 1.5W regulated 5kVRMS isolated DC/DC module with integrated transformer
Data sheet
UCC34141-Q1
- Fully integrated isolated planar transformer
- Wide input range: 5.5V to 28V (with 22V OVLO)
- ≥ 1.5W typical output for 11V ≤ VVIN ≤ 13V, 18V ≤ VVDD-COM ≤ 20V, at TA ≤ 85°C
- Programmable (VDD – COM) output voltage
- 15V to 20V, ≤ ±1.5% total regulation accuracy
- Programmable (VEE – COM) output voltage
- -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 indication
- Integrated protections: UVLO, OVLO, short-circuit, OVP, UVP, and thermal shutdown.
- < 3pF isolation capacitance
- > 8.2mm creepage and clearance
- Static and dynamic CMTI > ±250kV/µs
- AEC-Q100 qualified for automotive applications
- Temperature grade 1:–40°C ≤ TA ≤ 125°C
- Functional Safety-Capable
UCC34141-Q1 is an automotive qualified , reinforced isolation, high working voltage, DC/DC power module designed to provide power to SiC and IGBT isolated gate drivers. TI’s proprietary integrated transformer and advanced control architectures achieve high power density, low noise, and a low system bill of materials. This device is capable of delivering 1.5W typical output power at 85°C ambient temperature. The highly accurate dual-output voltages, easily set by resistor dividers, enables low on-resistance, fast and reliable switching for SiC/IGBT. The low-latency feedback control reduces the output capacitance for fast load transient and supports dynamic voltage programming. The wide input voltage and adjustable VIN UVLO supports both wide battery voltage of electric vehicles and regulated input rails. The device is operational from 5.5V to 20V VIN, and can withstand VIN overvoltage transients up to 28V.
The integrated protection features, fault-report Power-Good pin, and enables function increase system robustness and save external components. The SOIC package with 8.2mm creepage and clearance distance establishes high isolation capability.
Technical documentation
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View all 8 | Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | UCC34141-Q1 Automotive 1.5 W, 12 V VIN , 25 V VOUT , High Power Density, > 5kVRMS , Isolated DC/DC Module datasheet (Rev. C) | PDF | HTML | 30 Mar 2026 |
| Technical article | soShield™ 기술이 적용된 절연 전원 모듈로 최대 70% 까지 솔루션 크기 축소 | PDF | HTML | 20 Mar 2026 | |
| Technical article | 採用 IsoShield™ 技術的隔離式電源模組，可將解決方案尺寸 縮減多達 70% | PDF | HTML | 20 Mar 2026 | |
| Technical article | Isolated power modules with IsoShield™ technology cut solution size by as much as 70% | PDF | HTML | 03 Mar 2026 | |
| Application brief | Optimized Excitation Power Stage for Electrically Excited Synchronous Machines | PDF | HTML | 27 Feb 2026 | |
| Functional safety information | UCC34141-Q1 Functional Safety FIT Rate, FMD and Pin FMA | PDF | HTML | 25 Feb 2026 | |
| White paper | Isolated Bias Power Supply Architecture for HEV/EV Single Stage Onboard Chargers | PDF | HTML | 07 Jan 2026 | |
| Certificate | UCC34141EVM-116 EU RoHS Declaration of Conformity (DoC) | 27 Sep 2024 |
Design & development
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Evaluation board
UCC34141EVM-116 — UCC34141 evaluation module
This evaluation module (EVM) accepts the UCC35341-Q1 as a drop-in, pin-to-pin compatible, 2W variant of the UCC34141-Q1, 1.5W bias module. The UCC34141EVM-116 EVM operates from 5.5VIN to 20VIN and is configured for dual outputs of VDD=18V and VEE= -5V.
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
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