UCC14240 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
UCC14240 is an automotive-grade isolated DC/DC power module from Texas Instruments delivering 1.5 W regulated output from a 24 V input with an integrated transformer and 3 kV RMS isolation. It targets gate driver bias supply and isolated auxiliary rail applications in AEC-Q100 automotive systems. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 36
- Lifecycle
- ACTIVE
- Datasheet
- UCC14240 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 3 kV RMS reinforced isolation with integrated transformer eliminates external magnetics, reducing BOM and simplifying PCB layout for automotive gate driver bias supplies
- AEC-Q100 qualified with -40°C to 125°C operating range ensuring reliability in under-hood automotive traction inverter and OBC gate drive applications
- Regulated 1.5 W output from 24 V input with tight output voltage regulation across load, providing stable IGBT/SiC gate drive bias of ±15 V or ±12 V configurations
Applications
UCC14240 is designed to power gate driver bias supplies in automotive traction inverters, on-board chargers, and DC-DC converters where galvanic isolation of 3 kV RMS is required between high-voltage bus and gate driver logic. Its integrated transformer removes the need for custom magnetics design, enabling faster time-to-market for SiC MOSFET and IGBT gate drive modules in 400 V and 800 V EV/HEV drivetrain systems. The AEC-Q100 Grade 1 qualification and small outline package footprint suit space-constrained automotive power electronics modules operating across -40°C to 125°C.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What isolation voltage does UCC14240 provide and how does it protect gate driver circuits in a 800 V traction inverter?
UCC14240 provides 3 kV RMS reinforced isolation between its input and output, protecting 5 V or 3.3 V control-side gate driver ICs from 800 V DC bus voltage transients. This isolation level exceeds IEC 60664-1 reinforced insulation requirements for automotive 800 V systems, enabling safe gate bias supply without additional opto-isolators.
Can UCC14240 deliver the ±15 V gate bias voltage required for SiC MOSFETs in an automotive OBC design?
UCC14240 provides a regulated output configurable to supply ±15 V gate bias for SiC MOSFETs, with 1.5 W output power sufficient for driving a single gate driver IC at switching frequencies up to 200 kHz. The regulated output maintains less than 5% voltage variation across the full -40°C to 125°C operating range demanded by automotive OBC standards.
How does UCC14240's integrated transformer simplify PCB design compared to discrete isolated power supply approaches?
UCC14240 integrates the isolation transformer and power stage in a single small outline package, eliminating the need for custom-wound magnetics, air gap calculations, and creepage distance PCB routing required by discrete transformer designs. This reduces PCB area by approximately 60% compared to a discrete 1.5 W isolated flyback supply while meeting 3 kV RMS isolation in a single component.
What input voltage range does UCC14240 support for automotive 24 V rail applications with battery voltage variation?
UCC14240 is designed for 24 V nominal input, supporting the typical automotive 24 V rail variation from approximately 16 V to 32 V that occurs during cold crank, load dump, and normal operating conditions. The regulated output maintains stable voltage within this input range, ensuring gate driver bias supply operates correctly even during 24 V bus transients in commercial vehicle or industrial vehicle applications.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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