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UCC34141

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1.5W, 5.5 to 20V Vin, regulated, 5kVRMS isolated DC-DC module with integrated transformer

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Data sheet

UCC34141

ACTIVE
Data sheet Order now

Product details

Rating Catalog Topology Full-bridge Vin (max) (V) 20 Vin (min) (V) 5.5 Vout (max) (V) 25 Vout (min) (V) 15 Features 1.5W, Dual output, Enable, Power good, Regulated, Reinforced isolation, Soft start, UVLO adjustable Device type Isolated modules Regulated outputs (#) 2 TI functional safety category Functional Safety-Capable Isolation rating Reinforced Output power (W) 1.5 Operating temperature range (°C) -40 to 125 Control mode Internally Regulated with Dual Adjustable Outputs
Rating Catalog Topology Full-bridge Vin (max) (V) 20 Vin (min) (V) 5.5 Vout (max) (V) 25 Vout (min) (V) 15 Features 1.5W, Dual output, Enable, Power good, Regulated, Reinforced isolation, Soft start, UVLO adjustable Device type Isolated modules Regulated outputs (#) 2 TI functional safety category Functional Safety-Capable Isolation rating Reinforced Output power (W) 1.5 Operating temperature range (°C) -40 to 125 Control mode Internally Regulated with Dual Adjustable Outputs
SO-MOD (DHA) 16 60.255 mm² (5.85 mm × 10.3 mm)
  • 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
  • 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

UCC34141 is a 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.

UCC34141 is a 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.
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Technical documentation

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* Data sheet UCC34141 Industrial 1.5 W, 12 V VIN , 25 V VOUT , High Power Density, > 5kVRMS , Isolated DC/DC Module datasheet (Rev. A) PDF | HTML Apr 13, 2026
Application note Towards Functional Safety in Traction Inverters: Design Approach and Component Overview PDF | HTML May 28, 2026
Certificate UCC34141EVM-116 EU RoHS Declaration of Conformity (DoC) PDF | HTML Sep 27, 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.
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Simulation model

UCC34141 and UCC34141-Q1 SIMPLIS Model

SLVMEY9.ZIP (98 KB) - SIMPLIS model
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Calculation tool

UCC34141-Q1-CALC — UCC34141-Q1 design calculator tool

Design calculator tool to generate external BOM based on system requirement
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SO-MOD (DHA) 16 Ultra Librarian
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