Texas Instruments UCC28070PWR
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 20-TSSOP (0.173", 4.40mm Width) |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C |
| Supplier Device Package | 20-TSSOP |
| Mode | Continuous Conduction (CCM) |
| Voltage - Supply | 11.2V ~ 21V |
| Frequency - Switching | Adjustable |
| Current - Startup | 20 mA |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | UCC28070 |
| REACH Status | REACH Unaffected |
| Standard Package | 2,000 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
UCC28070PWR PFC Controller
The UCC28070PWR from Texas Instruments is an advanced interleaved transition-mode (TM) PFC (Power Factor Correction) controller, designed for high-efficiency AC/DC power supplies in industrial, server, and telecom applications. This 8-pin PWM controller implements a dual-phase interleaved critical conduction mode (CrM) architecture, significantly reducing input current ripple and improving power factor (PF > 0.99) while minimizing EMI emissions. With its average current mode control and synchronized 180° out-of-phase operation, it enables high-power designs (up to 4kW) with reduced component stress and improved thermal performance, making it ideal for high-density power supplies, LED drivers, and renewable energy systems.
Application Scenarios
The UCC28070PWR is widely used in high-power AC/DC converters, including server power supplies, telecom rectifiers, industrial motor drives, and solar inverters. Its interleaved PFC architecture reduces input/output capacitor requirements, making it ideal for compact, high-efficiency power supplies in data centers, medical equipment, and EV charging stations. The controller's low THD (Total Harmonic Distortion) and high PF compliance ensure adherence to IEC 61000-3-2 and ENERGY STAR standards.
Alternative PFC Controller Models
● UCC28064: A single-phase CrM PFC controller with similar features but lower power handling capability (up to 500W).
● NCP1654: ON Semiconductor's single-stage PFC controller with fixed-frequency operation for cost-sensitive designs.
● L6562A: STMicroelectronics' transition-mode PFC controller, optimized for low to medium power applications.
● FAN7930: Fairchild's critical-mode PFC controller with high-voltage startup for industrial power supplies.
