UCC28019AQDRQ1 - 65kHz CCM PFC Controller, AEC-Q100 | TI
MPN: UCC28019AQDRQ1 ✓ Hoạt độngUCC28019AQDRQ1 Tóm tắt
A PFC controller is a power management IC that shapes the input current of an AC-DC converter so it follows the sinusoidal line voltage, raising power factor and reducing harmonic distortion to meet IEC harmonic-current requirements. PFC pre-regulators sit between the bridge rectifier and downstream DC-DC stage in the broader power-supply hierarchy.
Key features include an 8-pin solution that senses neither line voltage nor line frequency, reducing external component count; a maximum duty cycle of 97%; and start-up current below 200 uA during undervoltage lockout, minimizing startup loss. Low-power standby mode is controlled by pulling the VSENSE pin below 0.77 V, enabling efficient no-load and light-load system behavior. Internal protection includes soft start, open-loop detection, and overvoltage protection per the datasheet.
Architecturally, the controller implements average-current-mode CCM control with soft, controlled on-times that reduce ripple current stress on the boost inductor and MOSFET compared with transition-mode approaches, making it well matched to higher-power designs where EMI filtering and peak-current stress dominate design cost.
Typical applications include automotive onboard chargers and front-end AC-DC power supplies, telecom rectifiers, industrial power supplies in the several-hundred-watt to multi-kilowatt range, and server/storage front ends requiring high power factor over universal AC input.
Design consideration: because the part operates in CCM, ensure the boost inductor is sized so inductor current remains continuous above minimum load, and add adequate slope compensation via the ICOMP network per the TI datasheet to avoid subharmonic oscillation.
Bộ thay thế dễ dàng lắp đặt cho UCC28019AQDRQ1 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với UCC28019AQDRQ1 (cùng hình factor và footprint) — khác nhau ở Input Line Range, Maximum Duty Cycle, Topology.
UCC28019ADR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →UCC28019ADR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →UCC28019ADTR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
NCP1654
⚡ Đồng gói ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
L6562A
⚡ Đồng gói ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
UCC28019AQDRQ1 Tỷ lệ tối đa & tính chất điện
| Cấu trúc | Boost, Continuous Conduction Mode (CCM) |
| Chức năng | Active Power Factor Correction (PFC) Controller |
| Số lượng chân | 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) |
| Hộp | SOIC-8 (D) |
| Kiểu lắp đặt | Surface Mount |
| Qualification | AEC-Q100 (automotive) |
Cấu hình chân UCC28019AQDRQ1
| Chân 1 | GND — Ground reference |
| Chân 2 | ICOMP — Current loop compensation |
| Chân 3 | ISENSE — Boost switch current sense |
| Chân 4 | VINS — AC line voltage enable threshold |
| Chân 5 | VREF — Reference voltage output |
| Chân 6 | VCOMP — Voltage loop compensation |
| Chân 7 | VSENSE — Output voltage sense / standby control (below 0.77 V) |
| Chân 8 | GATE — Gate drive output for boost MOSFET |
Ứng dụng tiêu biểu
UCC28019AQDRQ1 phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho UCC28019AQDRQ1 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
| Control Mode | CCM average current (boost) | CCM average current - same | CCM average current - same | CCM peak current (different loop) |
| Pin-to-Pin Drop-in | Reference | Yes - true drop-in | Yes - true drop-in | No - redesign required |
Bảo phân biệt quan trọng
- AEC-Q100 automotive qualification (vsUCC28019ADR)
- No line-voltage sensing required (vsNCP1654)
- CCM operation for high power (vsL6562A)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.
