UCC34141-Q1 - 1.5W Isolated DC/DC Module | Texas Instruments
MPN: UCC34141-Q1 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.5 | $8.50 |
| 10 | $7.65 | $76.50 |
| 100 | $6.8 | $680.00 |
| 500 | $6.12 | $3,060.00 |
| 1,000 | $5.5 | $5,500.00 |
Drop-in alternatives for UCC34141-Q1 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
UCC35341-Q1
β Drop-Inπ Reference alternative (not in catalog)
UCC14131-Q1
β Drop-Inπ Reference alternative (not in catalog)
UCC35131-Q1
β Drop-Inπ Reference alternative (not in catalog)
UCC34141DQDHARQ1
β Drop-Inπ Reference alternative (not in catalog)
UCC34141-Q1 Maximum Ratings & Electrical Characteristics
| Input Voltage Range | 5.5V to 20V (22V OVLO) |
| Output Power | 1.5W |
| Output Voltage | 15V to 20V (typical 18V) |
| Output Current | 75mA |
| Isolation Rating | >5kVRMS |
| Isolation Type | Reinforced |
| Package | 16-SO-MOD |
| Operating Temperature | -40Β°C to +125Β°C |
| Qualification | AEC-Q100 |
| Integrated Transformer | Yes (planar) |
| Output Overvoltage Protection | Yes |
| Feedback Pins | FBVDD, FBVEE |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Technology | IsoShield |
UCC34141-Q1 Pin Configuration
| Pin 1 | VIN β Input supply voltage |
| Pin 2 | GND β Input ground |
| Pin 3 | EN β Enable pin (active high) |
| Pin 4 | FBVDD β Feedback for positive output |
| Pin 5 | FBVEE β Feedback for negative output |
| Pin 6 | VDD β Positive output voltage |
| Pin 7 | VEE β Negative output voltage |
| Pin 8 | GND_ISO β Isolated ground |
| Pin 9 | NC β No connect |
| Pin 10 | NC β No connect |
| Pin 11 | NC β No connect |
| Pin 12 | NC β No connect |
| Pin 13 | NC β No connect |
| Pin 14 | NC β No connect |
| Pin 15 | NC β No connect |
| Pin 16 | NC β No connect |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
UCC34141-Q1 is suitable for 6 applications: Automotive Traction Inverter Gate Driver Bias, Industrial Motor Drive Isolated Supply, On-Board Charger (OBC) Bias Supply, Solar Inverter Gate Driver Bias, Battery Management System (BMS) Isolated Power, Server and Telecom Bias Supplies.
Automotive Traction Inverter Gate Driver Bias
The UCC34141-Q1 provides isolated bias power for SiC and IGBT gate drivers in automotive traction inverters. Its 5.5V-20V input range accommodates 12V automotive rails, while the >5kVRMS reinforced isolation ensures safety in high-voltage environments. The 1.5W output power is sufficient for gate driver ICs, and the AEC-Q100 qualification guarantees reliability under harsh automotive conditions. The integrated transformer reduces board space, enabling compact inverter designs.
Recommended
Industrial Motor Drive Isolated Supply
In industrial motor drives, the UCC34141-Q1 supplies isolated power to gate drivers for IGBT modules. The wide input range and reinforced isolation meet the safety requirements of industrial equipment. The module's high power density and integrated transformer simplify PCB layout, reducing design time and component count. The output overvoltage protection safeguards the gate driver from fault conditions, enhancing system robustness.
Recommended
On-Board Charger (OBC) Bias Supply
The UCC34141-Q1 is ideal for providing bias power in on-board chargers for electric vehicles. Its automotive qualification and wide input range support the fluctuating battery voltages. The reinforced isolation ensures safe separation between the high-voltage traction battery and low-voltage control electronics. The compact 16-SO-MOD package fits within the space constraints of OBC designs, while the integrated transformer eliminates the need for external magnetics.
Recommended
Solar Inverter Gate Driver Bias
In solar inverters, the UCC34141-Q1 provides isolated bias power for IGBT and SiC gate drivers. The wide input range accommodates varying DC bus voltages, and the reinforced isolation meets safety standards for photovoltaic systems. The module's high efficiency and low EMI help maintain clean power delivery to sensitive gate driver circuits. The integrated transformer reduces component count, improving reliability and reducing assembly cost.
Recommended
Battery Management System (BMS) Isolated Power
The UCC34141-Q1 can supply isolated power to battery management system (BMS) components, such as cell monitoring ICs and communication interfaces. Its automotive qualification and wide input range make it suitable for electric vehicle BMS. The reinforced isolation protects low-voltage control circuitry from high-voltage battery stacks. The compact module simplifies the design of isolated power domains within the BMS, reducing board space and improving reliability.
Recommended
Server and Telecom Bias Supplies
The UCC34141-Q1 is suitable for providing isolated bias power in server and telecom equipment, where high-voltage isolation is required for safety. Its wide input range and 1.5W output power can supply gate drivers, auxiliary control circuits, and communication interfaces. The integrated transformer and compact package enable high-density designs, while the reinforced isolation meets industry safety standards. The module's reliability and long lifecycle make it ideal for infrastructure applications.
Recommended
Recommended Products Summary
Engineering reference data for UCC34141-Q1 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | UCC35341-Q1 | UCC14131-Q1 | UCC35131-Q1 |
|---|---|---|---|---|
| Package | 16-SO-MOD | 16-SO-MOD | 16-SO-MOD | 16-SO-MOD |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Output Power | 1.5W | 2W | 1W | 1W |
| Input Voltage Range | 5.5V to 20V | 5.5V to 20V | 5.5V to 20V | 5.5V to 20V |
| Isolation Rating | >5kVRMS | >5kVRMS | >5kVRMS | >5kVRMS |
| AEC-Q100 | Yes | Yes | Yes | Yes |
| Output Voltage | 15V to 20V | 15V to 20V | 15V to 20V | 15V to 20V |
| Pin Compatibility | Reference | Pin-to-pin compatible | Likely compatible, verify | Likely compatible, verify |
Key Differentiators
- Higher output power than base variant (vs UCC34141-Q1 (base))
- Pin-to-pin compatible with UCC35341-Q1 (vs UCC35341-Q1)
- Automotive qualification (vs UCC33420)
Design Notes
For the UCC34141-Q1, maintain proper isolation spacing on the PCB between the input and output sides to meet the >5kVRMS isolation rating. Follow the recommended layout in the datasheet, ensuring adequate creepage and clearance distances. Use a solid ground plane on the input side and isolated ground on the output side, with a clear separation to prevent arcing.
The UCC34141-Q1 dissipates power internally, so thermal management is important. Ensure adequate copper area and thermal vias under the module to dissipate heat. The operating temperature range is -40Β°C to +125Β°C, so verify that the junction temperature stays within limits under worst-case load and ambient conditions. Refer to the thermal impedance data in the datasheet.
Do not exceed the input voltage of 20V (22V OVLO) to avoid damage. Ensure the feedback pins FBVDD and FBVEE are properly connected to the output divider network to maintain regulation. The output overvoltage protection is a safety feature, but proper feedback design is essential for stable operation. Also, verify that the load does not exceed 1.5W to prevent thermal shutdown.
Compliance Information
AEC-Q100 qualified per TI product page. RoHS compliant. Other compliance details not explicitly stated in provided data.
