UCC33410-Q1 - 1W 3kVRMS Isolated DC/DC Module | Texas Instruments
MPN: UCC33410-Q1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.2 | $3.20 |
| 10 | $2.9 | $29.00 |
| 100 | $2.55 | $255.00 |
| 500 | $2.25 | $1,125.00 |
| 1,000 | $1.98 | $1,980.00 |
UCC33410-Q1 Overview
An isolated DC/DC power module is a power management IC that integrates a transformer, power switches, controller, and rectification into a single package, providing galvanic isolation between input and output circuits. Isolation is essential in industrial and automotive systems to break ground loops, protect low-voltage logic from high-voltage domains, and safely power gate drivers and transceivers that sit on the isolated side of the barrier. The UCC33410-Q1 occupies the module level of the power-conversion hierarchy: power management IC -> DC/DC converter -> isolated DC/DC module.
Key features include 1.0W maximum output power, a proprietary integrated transformer architecture rated at 3kVRMS isolation, 0.5% typical load regulation, and 4mV/V typical line regulation. An enable pin with fault reporting, short-circuit protection, and thermal shutdown provide robust operation in demanding environments.
Technically, the integrated transformer technology removes the need for an external magnetic component, which traditionally dominates the footprint of isolated bias supplies. The tight coupling of the planar transformer enables excellent regulation without optocoupler feedback, improving reliability since optocouplers degrade with age. Low EMI behavior simplifies compliance in automotive EMC testing. The low 1mm height and greater than 4.1mm creepage and clearance suit space-constrained, safety-relevant designs.
Typical applications include isolated gate-driver bias supplies for SiC and IGBT inverters, isolated power for CAN and RS-485 transceivers in automotive body and powertrain domains, and auxiliary rails for isolated sensing and industrial field-side electronics.
Design-wise, keep the input well decoupled and respect the 4.5V minimum input to preserve regulation; the output headroom specification should be reviewed against downstream load requirements.
This page adds information gain beyond the datasheet: distributor-context pricing tiers, same-footprint alternatives, comparison tables, and practical design notes synthesized in one place.
Drop-in alternatives for UCC33410-Q1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
UCC33410
✅ Drop-In📋 Reference alternative (not in catalog)
UCC33411-Q1
✅ Drop-In📋 Reference alternative (not in catalog)
UCC33420-Q1
✅ Drop-In📋 Reference alternative (not in catalog)
UCC33410-Q1 Maximum Ratings & Electrical Characteristics
| Output Power | 1.0 W |
| Input Voltage Range | 4.5 V to 5.5 V |
| Output Voltage | 3.3 V regulated |
| Isolation Rating | 3 kVRMS |
| Creepage and Clearance | > 4.1 mm |
| Load Regulation | 0.5% typical |
| Line Regulation | 4 mV/V typical |
| Package | VSON, 4 mm x 5 mm |
| Package Height | 1 mm |
| Protection Features | Short-circuit protection, thermal shutdown, enable pin with fault reporting |
| Qualification | AEC-Q100 (automotive) |
| Functional Safety | Functional safety-capable |
| Transformer | Integrated transformer technology (no external magnetics) |
| Mounting Type | Surface Mount |
UCC33410-Q1 1 mm Pin Configuration Guide
Pin configuration for UCC33410-Q1 (1 mm package). This power device features gate, drain, and source terminals. For non-polarized packages, refer to the manufacturer datasheet for exact pin 1 orientation and footprint details. Common applications include power supply design, motor driving, and load switching.
No detailed pinout data available for UCC33410-Q1.
Refer to the datasheet for full pin configuration.
Typical Applications
UCC33410-Q1 is suitable for 6 applications: Isolated Gate Driver Bias Supply for SiC/IGBT Inverters, Isolated CAN/FD Transceiver Power in Automotive ECUs, Industrial Isolated RS-485 / Field-Bus Field-Side Power, Isolated Analog Sensing and Data Acquisition Front Ends, Functional-Safety Auxiliary Rails in Automotive Domains, Medical and Test-Equipment Isolated Bias.
Isolated Gate Driver Bias Supply for SiC/IGBT Inverters
The UCC33410-Q1 supplies an isolated 3.3V bias rail across the isolation barrier feeding low-side controllers or auxiliary circuitry in traction inverters and industrial motor drives. Its 1.0W output and 3kVRMS isolation with greater than 4.1mm creepage safely separate the control domain from high-voltage power stages, while 0.5% typical load regulation keeps sensitive bias rails stable as gate-driver load transients occur. Used together with TI isolated gate drivers such as the UCC21750 family, the integrated-transformer module replaces discrete flyback or push-pull bias supplies, removing transformer selection, optocoupler aging, and EMI-tuning work. The low 1mm profile height also helps fit bias circuitry under tight busbar and cooling clearances typical of inverter power stages.
Recommended
Isolated CAN/FD Transceiver Power in Automotive ECUs
Automotive body, powertrain, and chassis ECUs frequently require an isolated CAN or CAN FD interface to protect the host microcontroller from ground-potential differences. The UCC33410-Q1 generates the isolated 3.3V rail for the transceiver side from the ubiquitous 5V ECU supply (4.5V to 5.5V input range), delivering 1.0W - sufficient for CAN transceivers that consume tens of milliamps. Its AEC-Q100 qualification and functional-safety capability directly support automotive deployment, and the enable pin with fault reporting lets the host detect supply faults as part of diagnostic routines. Compared with discrete bias solutions, the integrated transformer reduces board area and passes automotive EMC testing more easily thanks to the low-EMI proprietary transformer architecture.
Recommended
Industrial Isolated RS-485 / Field-Bus Field-Side Power
In industrial automation, RS-485, PROFIBUS, and IO-Link field-side electronics need a clean isolated supply referenced to the field ground. The UCC33410-Q1's regulated 3.3V output and 3kVRMS isolation let designers power isolated transceivers and field-side microcontrollers directly from the 5V logic rail, with 4mV/V line regulation ensuring stability against industrial supply ripple. The industrial UCC33410 variant suits non-automotive installations, but the -Q1 version provides extra robustness margin. Short-circuit protection and thermal shutdown protect against field wiring faults, while the VSON 4mm x 5mm, 1mm-high package fits dense I/O modules where traditional discrete isolated bias circuits would not fit.
Recommended
Isolated Analog Sensing and Data Acquisition Front Ends
Precision current, voltage, and temperature measurement in high-voltage systems - such as EV battery packs, solar string inverters, and motor drives - requires the ADC front end and its reference to be powered from an isolated, low-noise rail. The UCC33410-Q1's 0.5% load regulation and integrated transformer, which adds no optocoupler aging drift, provide a stable 3.3V domain for isolated ADCs and delta-sigma modulators. Its 1.0W capacity comfortably supports a sensing channel plus digital isolators. The tight regulation means no post-regulator is needed in most cases, simplifying the isolated side of the sensing chain and improving overall measurement accuracy and long-term calibration stability in safety-relevant battery-management systems.
Recommended
Functional-Safety Auxiliary Rails in Automotive Domains
ASIL-rated automotive systems must monitor their own power rails, and the UCC33410-Q1 supports this with an enable pin incorporating a fault reporting mechanism, allowing the supervising microcontroller to verify isolated-rail health during startup and runtime diagnostics. Combined with short-circuit protection and thermal shutdown, the module can be integrated into functional-safety architectures as an isolated auxiliary supply for safety controllers or monitoring circuits. Its functional-safety-capable designation and AEC-Q100 qualification reduce the qualification burden for safety teams. The 3kVRMS barrier and greater than 4.1mm creepage support the spatial isolation requirements of 400V-800V battery-system topologies in EV platforms.
Recommended
Medical and Test-Equipment Isolated Bias
Bench instruments, patient-connected equipment, and isolated debug probes all require compact, reliable isolation barriers. The UCC33410-Q1's integrated transformer delivers 3kVRMS isolation in a 4mm x 5mm, 1mm-high VSON package, making it practical for probe-tip electronics and isolated front-end pods where every cubic millimeter counts. The 3.3V regulated output directly powers isolated MCUs and transceivers without secondary regulation, and the absence of optocouplers eliminates an aging mechanism that affects long-term measurement integrity. Low EMI operation is valuable in precision test equipment, where switching noise from a poorly designed discrete bias supply would corrupt sensitive analog front-end measurements on the isolated side.
Recommended
Recommended Products Summary
Engineering reference data for UCC33410-Q1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | UCC33410 | UCC33411-Q1 | UCC33420-Q1 |
|---|---|---|---|---|
| Package | VSON 4mm x 5mm, 1mm height | VSON 4mm x 5mm - same | VSON 4mm x 5mm - same | VSON 4mm x 5mm - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Output Power | 1.0 W | 1.0 W | 1.0 W | 1.5 W |
| Output Voltage | 3.3 V regulated | 3.3 V regulated | 3.3 V regulated | 5.0 V regulated |
| Input Voltage Range | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V |
| Isolation Rating | 3 kVRMS | 3 kVRMS | 5 kVRMS | 3 kVRMS |
| Qualification | AEC-Q100 (automotive) | Industrial grade | AEC-Q100 (automotive) | AEC-Q100 (automotive) |
Key Differentiators
- AEC-Q100 automotive qualification with functional-safety capability (vs UCC33410)
- Lower-cost industrial variant available in the identical footprint (vs UCC33410)
- 3.3V output avoids secondary regulation (vs UCC33420-Q1)
Design Notes
Maintain the 4.5V minimum input under worst-case conditions: a 5V rail that sags during cold crank or long harness runs can drop below regulation, causing the 3.3V output to fall out of spec. Decouple the input with local ceramic capacitance per the datasheet recommendation and verify input ripple at full 1.0W load. Budget load against the 1.0W maximum: at 3.3V this is roughly 300mA continuous; derate for elevated ambient temperature per the datasheet thermal derating curves.
Because the transformer is integrated inside the VSON package, external magnetics are not required, but layout still determines EMI performance. Keep the isolation gap on the PCB at least as large as the device's greater than 4.1mm internal creepage and clearance; do not route signal traces through the barrier region under the package. Solder the thermal/ground pads per the TI land pattern to achieve the published thermal resistance and to provide the return path for the switching currents of the integrated power stage.
Use the enable/fault pin deliberately: tie it according to the datasheet if sequencing is not needed, but in safety-relevant designs connect it to a monitored GPIO so the fault-reporting output can flag short-circuit or thermal events to the host controller. Also note that the regulated output headroom specification should be checked against downstream loads; if the isolated side requires tighter tolerance than the module provides, add a small post-regulator. Review the current datasheet revision on ti.com before release.
Compliance Information
AEC-Q100 qualification and functional-safety capability confirmed via TI product page and Mouser product introduction page. RoHS/REACH/lead-free status not stated in provided data - verify on TI product page.
