UCC28019AQDRQ1 - 65kHz CCM PFC Controller, AEC-Q100 | TI
MPN: UCC28019AQDRQ1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.45 | $1.45 |
| 10 | $1.3 | $13.00 |
| 100 | $1.05 | $105.00 |
| 500 | $0.92 | $460.00 |
| 1,000 | $0.78 | $780.00 |
Drop-in alternatives for UCC28019AQDRQ1 — 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:
UCC28019ADR
✅ Drop-In✓ In Stock
$1 / Unit
View Datasheet →UCC28019ADR
✅ Drop-In✓ In Stock
$1 / Unit
View Datasheet →UCC28019ADTR
✅ Drop-In📋 Reference alternative (not in catalog)
NCP1654
⚡ Same Package📋 Reference alternative (not in catalog)
L6562A
⚡ Same Package📋 Reference alternative (not in catalog)
UCC28019AQDRQ1 Maximum Ratings & Electrical Characteristics
| Topology | Boost, Continuous Conduction Mode (CCM) |
| Function | Active Power Factor Correction (PFC) Controller |
| Number of Pins | 8 |
| Operating Frequency | 65 kHz (fixed) |
| Maximum Duty Cycle | 97% |
| Power Range | 100 W to >2 kW |
| Input Line Range | Wide-range universal AC input |
| Start-up Current (UVLO) | < 200 uA |
| Standby Control Threshold | VSENSE below 0.77 V |
| Line Voltage Sensing | Not required (8-pin solution) |
| Package | SOIC-8 (D) |
| Mounting Type | Surface Mount |
| Qualification | AEC-Q100 (automotive) |
| Operating Temperature | [DATA_NEEDED: operating temperature range] |
| Supply Voltage Range | [DATA_NEEDED: VCC operating range] |
| RoHS Status | [DATA_NEEDED: RoHS status] |
UCC28019AQDRQ1 Pin Configuration
| Pin 1 | GND — Ground reference |
| Pin 2 | ICOMP — Current loop compensation |
| Pin 3 | ISENSE — Boost switch current sense |
| Pin 4 | VINS — AC line voltage enable threshold |
| Pin 5 | VREF — Reference voltage output |
| Pin 6 | VCOMP — Voltage loop compensation |
| Pin 7 | VSENSE — Output voltage sense / standby control (below 0.77 V) |
| Pin 8 | GATE — Gate drive output for boost MOSFET |
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
UCC28019AQDRQ1 is suitable for 6 applications: Automotive Onboard Charger (OBC) Front End, Telecom Rectifier AC-DC Front End, Industrial Power Supplies (>500 W), Server and Storage Power Front End, High-Power LED Driver Front End, Audio Amplifier Power Supplies.
Automotive Onboard Charger (OBC) Front End
The UCC28019AQDRQ1 fits automotive onboard chargers because its AEC-Q100 qualification addresses automotive reliability requirements while the CCM boost topology sustains 100 W to over 2 kW from universal AC input. Its fixed 65 kHz frequency keeps boost inductor current continuous, reducing peak MOSFET stress in compact OBC power stages. Placed between the bridge rectifier and the DC-DC conversion stage, it shapes input current for high power factor; the sub-200 uA UVLO start-up current and VSENSE-based standby (below 0.77 V) minimize key-off battery drain.
Recommended
Telecom Rectifier AC-DC Front End
Telecom rectifiers require high power factor and low input current harmonics across universal AC lines, exactly the operating envelope the UCC28019AQDRQ1 targets (100 W to >2 kW per TI). The CCM average-current control limits ripple current in the bulk capacitor and EMI filter, reducing rectifier size and cost. With no line-voltage sensing network required, the 8-pin design shortens the front-end BOM; the 97% maximum duty cycle supports wide boost conversion ratios from low-line AC input to a nominal 400 V PFC bus.
Recommended
Industrial Power Supplies (>500 W)
Industrial AC-DC supplies in the several-hundred-watt class benefit from the UCC28019AQDRQ1's CCM operation, which halves peak current stress versus transition-mode designs and reduces input EMI filtering cost. The fixed 65 kHz frequency eases magnetics and EMI filter standardization across product families. Soft, controlled on-times reduce turn-on losses in the boost switch, and protection features documented in the TI datasheet (open-loop detection, overvoltage protection) support robust factory-floor operation from universal AC input.
Recommended
Server and Storage Power Front End
Server and storage power supplies demand power factor above 0.99 at load and low no-load consumption; the UCC28019AQDRQ1 delivers both with CCM boost control and VSENSE-standby below 0.77 V. In a two-stage architecture, this controller manages the PFC pre-regulator stage ahead of a LLC or buck DC-DC stage. The sub-200 uA start-up current lets a modest auxiliary supply bootstrap the controller, and the 8-pin, no-line-sensing architecture keeps the dense power board layout simple.
Recommended
High-Power LED Driver Front End
High-power industrial LED luminaires above 100 W must meet harmonic-current limits, making a CCM boost PFC pre-regulator based on the UCC28019AQDRQ1 a natural front end. Its fixed 65 kHz operation avoids audible-noise bands and keeps inductor current continuous, lowering output ripple that would otherwise cause visible flicker. Universal AC input support per the TI datasheet allows one luminaire design for global markets, while the 8-pin solution minimizes the small control-board footprint inside the luminaire housing.
Recommended
Audio Amplifier Power Supplies
High-power professional audio amplifiers use a boost PFC front end to hold bus voltage constant under rapidly varying program load; the UCC28019AQDRQ1's CCM control keeps input current sinusoidal even at partial load, meeting EMC harmonic requirements. Fixed 65 kHz operation stays above the audio band, avoiding audible coupling. The 100 W to >2 kW range per TI covers mono-block and multi-channel amplifiers, and standby entry via VSENSE below 0.77 V supports energy-efficient idle modes required by modern power regulations.
Recommended
Recommended Products Summary
Engineering reference data for UCC28019AQDRQ1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | UCC28019ADR | UCC28019AD | NCP1654 |
|---|---|---|---|---|
| Package | SOIC-8 (D) | SOIC-8 (D) - same | SOIC-8 (D) - same | SOIC-8 - same package, different pinout |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | onsemi |
| Automotive Qualification | AEC-Q100 qualified | No | No | [DATA_NEEDED] |
| Control Mode | CCM average current (boost) | CCM average current - same | CCM average current - same | CCM peak current (different loop) |
| Switching Frequency | 65 kHz fixed | 65 kHz fixed | 65 kHz fixed | [DATA_NEEDED] |
| Power Range | 100 W to >2 kW | 100 W to >2 kW | 100 W to >2 kW | [DATA_NEEDED] |
| Standby Control | VSENSE below 0.77 V | VSENSE below 0.77 V | VSENSE below 0.77 V | [DATA_NEEDED] |
| Start-up Current (UVLO) | < 200 uA | < 200 uA | < 200 uA | [DATA_NEEDED] |
| Pin-to-Pin Drop-in | Reference | Yes - true drop-in | Yes - true drop-in | No - redesign required |
Key Differentiators
- AEC-Q100 automotive qualification (vs UCC28019ADR)
- No line-voltage sensing required (vs NCP1654)
- CCM operation for high power (vs L6562A)
Design Notes
Size the boost inductor so current remains continuous above the minimum expected load; if the inductance is too small, the stage falls into discontinuous mode near light load and the CCM average-current loop loses accuracy. Use the ICOMP pin compensation network per the TI datasheet for slope compensation to prevent subharmonic oscillation at duty cycles approaching the 97% maximum.
Keep the ISENSE sensing path to the boost MOSFET source as short as possible and use Kelvin sensing. Place ICOMP, VCOMP, and VSENSE compensation networks close to the IC with a local ground reference to pin 1 (GND) to prevent switching-noise injection into the control loops. Bypass VREF and VCC with 0.1 uF ceramic capacitors adjacent to the pins.
Pulling VSENSE below 0.77 V places the controller in standby - ensure the output divider cannot transiently dip below this threshold during AC sag or load steps, or the PFC will drop out unexpectedly. Also verify VINS threshold behavior at low line so the controller enables only when the rectified line is valid, avoiding false starts during brownout conditions.
Compliance Information
AEC-Q100 qualification is confirmed by the -Q1 designation and TI product data. RoHS/REACH status not present in provided data - verify on TI product page.
