UCC28019ADR - 65kHz CCM PFC Controller | Texas Instruments
MPN: UCC28019ADR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.5 | $1.50 |
| 10 | $1.35 | $13.50 |
| 100 | $1.2 | $120.00 |
| 500 | $1.1 | $550.00 |
| 1,000 | $1 | $1,000.00 |
Drop-in alternatives for UCC28019ADR — 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:
UCC28019AD
✅ Drop-In📋 Reference alternative (not in catalog)
UCC28019ADR
✅ Drop-In✓ In Stock
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View Datasheet →NCP1654
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ICE2PCS02
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UCC28019ADR Maximum Ratings & Electrical Characteristics
| Configuration / Function | Boost |
| Package Type | SOIC-8 (D) |
| Switching Frequency | 65 kHz (fixed) |
| Maximum Duty Cycle | 98% (typ) |
| Input Voltage (VIN) | 15 V (typical) |
| UVLO Thresholds On/Off | 10.5 V / 9.5 V |
| Start-up Current during UVLO | < 200 µA |
| Operating Temperature Range | -40°C to +125°C |
| Control Mode | Average Current Mode |
| Topology | Boost |
| Standby Mode Threshold (VSENSE) | 0.77 V |
| Output Over/Under Voltage Protection | Yes |
| Overcurrent Protection | Yes |
| RoHS Status | Compliant |
| Mounting Type | Surface Mount |
UCC28019ADR Pin Configuration
| Pin 1 | GND — Ground |
| Pin 2 | ICOMP — Current loop compensation |
| Pin 3 | ISENSE — Current sense input |
| Pin 4 | VCOMP — Voltage loop compensation |
| Pin 5 | VSENSE — Output voltage sense |
| Pin 6 | VCC — Supply voltage |
| Pin 7 | GATE — Gate drive output |
| Pin 8 | VIN — Input voltage sense |
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
UCC28019ADR is suitable for 6 applications: Desktop Computer Power Supplies, Server Power Supplies, Telecom Equipment Power Supplies, Industrial Power Supplies, LED Lighting Drivers, Battery Chargers.
Desktop Computer Power Supplies
The UCC28019ADR is ideal for desktop computer power supplies where high power factor and low harmonic distortion are required to meet regulatory standards like IEC 61000-3-2. Its fixed 65-kHz CCM operation ensures stable performance across the 100 W to >2 kW range. The controller's average current mode control provides good noise immunity, and the 8-pin SOIC package minimizes board space. With over/under voltage and overcurrent protection, it enhances system reliability. The low start-up current (<200 µA) reduces standby power consumption, helping meet energy-efficiency requirements.
Recommended
Server Power Supplies
In server power supplies, the UCC28019ADR provides high power factor correction for efficient operation. Its wide-range universal AC input (85-265 VAC) handles global voltage variations. The fixed 65-kHz switching frequency simplifies EMI filter design, crucial for meeting CISPR standards. The controller's enhanced transient response reduces output voltage overshoot/undershoot during load steps, ensuring stable power to processors. The 8-pin SOIC package allows compact PFC stages, and the standby mode (VSENSE <0.77 V) reduces power draw during idle, contributing to energy savings in data centers.
Recommended
Telecom Equipment Power Supplies
The UCC28019ADR is suitable for telecom power supplies that require high power factor and low harmonic distortion. Its CCM operation ensures low input current ripple, reducing stress on input capacitors and improving EMI performance. The controller's average current mode control provides stable operation over a wide load range, essential for telecom applications with varying loads. The wide input voltage range accommodates universal AC input, and the over/under voltage protection safeguards the system. The 8-pin SOIC package is ideal for space-constrained telecom boards.
Recommended
Industrial Power Supplies
For industrial power supplies, the UCC28019ADR provides robust PFC performance in harsh environments. Its operating temperature range of -40°C to +125°C ensures reliability in industrial settings. The fixed 65-kHz switching frequency allows for a well-defined EMI filter design, meeting industrial standards. The controller's overcurrent protection prevents damage during overloads, and the standby mode reduces power consumption when equipment is idle. The 8-pin SOIC package is easy to integrate into existing designs, and the wide input voltage range supports global industrial power grids.
Recommended
LED Lighting Drivers
The UCC28019ADR is used in LED lighting drivers to achieve high power factor and comply with lighting regulations. Its CCM operation reduces input current harmonics, improving power quality. The fixed 65-kHz frequency allows for a compact magnetic design, reducing driver size. The controller's low start-up current (<200 µA) minimizes standby power, important for energy-efficient lighting. The standby mode (VSENSE <0.77 V) enables dimming or standby functionality. The 8-pin SOIC package is suitable for space-constrained LED drivers.
Recommended
Battery Chargers
The UCC28019ADR is suitable for battery chargers that require high power factor and low harmonic distortion. Its CCM operation ensures smooth input current, reducing stress on the input rectifier and capacitors. The controller's average current mode control provides stable operation over a wide load range, essential for charging profiles. The wide input voltage range supports universal AC input, and the over/under voltage protection safeguards the charger. The 8-pin SOIC package is compact, and the standby mode reduces power consumption when the battery is fully charged.
Recommended
Recommended Products Summary
Engineering reference data for UCC28019ADR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | UCC28019AD | UCC28019P | NCP1654 | ICE2PCS02 |
|---|---|---|---|---|---|
| Package | SOIC-8 | SOIC-8 | PDIP-8 | SOIC-8 | SOIC-8 |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | onsemi | Infineon |
| Switching Frequency | 65 kHz | 65 kHz | 65 kHz | 65 kHz (adjustable) | 65 kHz (adjustable) |
| Control Mode | Average Current Mode | Average Current Mode | Average Current Mode | Average Current Mode | Average Current Mode |
| Maximum Duty Cycle | 98% | 98% | 98% | 96% | 95% |
| UVLO Thresholds On/Off | 10.5 V / 9.5 V | 10.5 V / 9.5 V | 10.5 V / 9.5 V | [DATA_NEEDED] | [DATA_NEEDED] |
| Start-up Current | <200 µA | <200 µA | <200 µA | [DATA_NEEDED] | [DATA_NEEDED] |
| Operating Temperature Range | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C |
Key Differentiators
- Fixed 65-kHz frequency simplifies EMI filter design (vs NCP1654)
- Low start-up current (<200 µA) improves standby efficiency (vs ICE2PCS02)
- 8-pin SOIC package minimizes board space (vs UCC28019P)
Design Notes
For optimal performance, place the UCC28019ADR close to the power stage. Keep the gate drive trace short and wide to minimize inductance. The current sense resistor should be placed near the ISENSE pin with a Kelvin connection to avoid noise pickup. Use a solid ground plane to reduce EMI.
The UCC28019ADR requires a VCC supply between 10.5 V and 21 V. Use a bypass capacitor of at least 0.1 µF close to the VCC pin. The start-up current is less than 200 µA, so a simple resistor from the rectified line can provide start-up current. Ensure the VCC capacitor is large enough to maintain voltage during start-up.
Do not pull the VSENSE pin below 0.77 V during normal operation, as this triggers standby mode. Ensure the voltage sense divider is designed to keep VSENSE above this threshold. Also, avoid exceeding the maximum VIN of 21 V on the VIN pin. Use proper snubbing on the gate drive to reduce ringing.
Compliance Information
RoHS compliant per TI product page. No AEC-Q100 qualification indicated for this part.
