UCC25800AQDGNRQ1 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The UCC25800AQDGNRQ1 is an automotive-qualified open-loop LLC transformer driver for isolated bias supplies by Texas Instruments, operating from 9 V to 34 V with pulse-frequency modulation control. Key specs: AEC-Q100 qualified, 8-pin SOIC package, voltage-mode control. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 9
- Lifecycle
- ACTIVE
- Datasheet
- UCC25800AQDGNRQ1 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.6523(MOQ 10)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- AEC-Q100 Grade 1 automotive-qualified LLC transformer driver enabling isolated bias supply generation in harsh vehicle environments
- Input voltage range of 9 V to 34 V with pulse-frequency modulation supports both 12 V and 24 V automotive battery systems
- Open-loop LLC architecture in a compact 8-pin SOIC eliminates feedback compensation components, reducing BOM count and design complexity
Applications
The UCC25800AQDGNRQ1 is designed for generating isolated gate-drive bias supplies in automotive traction inverters, on-board chargers, and DC/DC converters where AEC-Q100 reliability is required. Its wide 9 V to 34 V input range accommodates cold-crank and load-dump transients on 12 V or 24 V vehicle batteries. The open-loop LLC topology minimizes external component count, making it a cost-effective solution for isolated IGBT and SiC MOSFET gate power rails in EV and hybrid powertrain modules.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE FREQUENCY MODULATION |
| Input Voltage-Max | 34V |
| Input Voltage-Min | 9V |
| Input Voltage-Nom | 15V |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 1A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.19 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Screening Level | AEC-Q100 |
| Supply Current-Max (Isup) | 20mA |
| Supply Voltage-Nom (Vsup) | 15V |
| Surface Mount | YES |
| Switcher Configuration | PUSH-PULL |
| Switching Frequency-Max | 1200kHz |
| Terminal Finish | Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does the UCC25800AQDGNRQ1 support and why does that matter in automotive designs?
The UCC25800AQDGNRQ1 operates from 9 V to 34 V, covering both the 12 V and 24 V automotive bus standards including cold-crank (as low as 9 V) and load-dump transients (up to 34 V). This wide range allows a single transformer driver design to work across passenger vehicles, light commercial trucks, and 24 V heavy-duty platforms without component changes, reducing variant proliferation in the supply chain.
What qualification standard does the UCC25800AQDGNRQ1 meet for automotive use?
The UCC25800AQDGNRQ1 is AEC-Q100 qualified, meeting the automotive electronics council reliability standard for IC components used in vehicle systems. AEC-Q100 Grade 1 qualification covers the −40°C to +125°C ambient temperature range with stress-test protocols including HTOL, HAST, and ESD, ensuring the device meets the long-service-life and reliability expectations of OEM automotive power electronics designs.
How does the open-loop LLC topology of the UCC25800AQDGNRQ1 simplify isolated bias supply design?
In an open-loop LLC converter, the resonant tank naturally regulates output voltage at or near resonance without a feedback loop, eliminating the optocoupler, compensation network, and secondary-side error amplifier typically needed in flyback designs. For the UCC25800AQDGNRQ1, this reduces external component count by approximately 5–8 parts and shrinks solution size, while still delivering well-regulated isolated bias voltages for IGBT and SiC gate drivers operating from the 9 V to 34 V automotive bus.
Which package does the UCC25800AQDGNRQ1 use and how does it fit into a high-density gate-driver power supply layout?
The UCC25800AQDGNRQ1 comes in an 8-pin SOIC (SOIC-8) package with 1.27 mm lead pitch and a body area of approximately 29 mm². Its small footprint and low pin count allow placement close to the transformer on a two-layer PCB, minimizing high-frequency switching loop inductance and simplifying thermal management for automotive gate-driver bias supply modules where space adjacent to the power stage is limited.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 10+ | $2.2600 | $22.60 |
| 25+ | $2.0700 | $51.75 |
| 100+ | $1.8556 | $185.56 |
| 112+ | $1.7866 | $200.10 |
| 146+ | $1.7195 | $251.05 |
| 182+ | $1.6523 | $300.72 |
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