Home Power management AC/DC & DC/DC controllers (external FET)
Home
Power management
AC/DC & DC/DC controllers (external FET)

UCC28070-Q1

ACTIVE

Automotive two-phase interleaved continuous conduction(CCM) mode PFC controller

Order now
Data sheet

UCC28070-Q1

ACTIVE
Data sheet Order now

Product details

Rating Automotive Topology Boost, PFC controller Vin (max) (V) 21 Control mode CCM Features Automotive qualified, Feed-forward Correction, Frequency Dithering, Interleaved, Programable Switching Frequency, Programmable Soft-start, Synchronizable Operating temperature range (°C) -40 to 125 Duty cycle (max) (%) 98
Rating Automotive Topology Boost, PFC controller Vin (max) (V) 21 Control mode CCM Features Automotive qualified, Feed-forward Correction, Frequency Dithering, Interleaved, Programable Switching Frequency, Programmable Soft-start, Synchronizable Operating temperature range (°C) -40 to 125 Duty cycle (max) (%) 98
TSSOP (PW) 20 41.6 mm² 6.5 x 6.4
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1, TA: –40°C to 125°C
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4
  • Interleaved average current-mode PWM control with inherent current matching
  • Advanced current-synthesizer current sensing for superior efficiency
  • Synchronization capability to external clock
  • Highly-linear multiplier output with internal quantized voltage feed-forward for near-unity PF
  • Enhanced transient response through slew-rate correction of voltage amplifier output current
  • Programmable frequency (30kHz to 300kHz)
  • Programmable maximum duty-cycle clamp
  • Programmable frequency-dithering rate and magnitude (up to 30kHz) for EMI reduction
  • Programmable soft-start
  • Programmable peak current limiting
  • External PFC-disable interface
  • Protections: bias-supply UVLO, output overvoltage, open‑loop detection, open-circuit detection on VSENSE and VINAC, and PFC-enable monitoring
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1, TA: –40°C to 125°C
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4
  • Interleaved average current-mode PWM control with inherent current matching
  • Advanced current-synthesizer current sensing for superior efficiency
  • Synchronization capability to external clock
  • Highly-linear multiplier output with internal quantized voltage feed-forward for near-unity PF
  • Enhanced transient response through slew-rate correction of voltage amplifier output current
  • Programmable frequency (30kHz to 300kHz)
  • Programmable maximum duty-cycle clamp
  • Programmable frequency-dithering rate and magnitude (up to 30kHz) for EMI reduction
  • Programmable soft-start
  • Programmable peak current limiting
  • External PFC-disable interface
  • Protections: bias-supply UVLO, output overvoltage, open‑loop detection, open-circuit detection on VSENSE and VINAC, and PFC-enable monitoring

The UCC28070-Q1 is an advanced power factor correction (PFC) controller that integrates two pulse-width modulators (PWMs) operating interleaved by 180° in CCM boost-mode. Derived from the UCC28070, this device can switch at frequencies from 30kHz up to 300kHz.

The 180° out-of-phase interleaved operation results in substantial reduction of high-frequency input and output ripple currents and conducted-EMI filtering becomes easier and less expensive.

The UCC28070-Q1 features multiple innovations including current synthesis and quantized voltage feedforward to promote performance enhancements in PF, efficiency, THD, and transient response. In addition, frequency dithering, clock synchronization, and slew-rate enhancement further expand the potential for performance improvements. Also, protection features include output overvoltage detection, programmable peak-current limit, undervoltage lockout, and open-loop protection.

The UCC28070-Q1 is an advanced power factor correction (PFC) controller that integrates two pulse-width modulators (PWMs) operating interleaved by 180° in CCM boost-mode. Derived from the UCC28070, this device can switch at frequencies from 30kHz up to 300kHz.

The 180° out-of-phase interleaved operation results in substantial reduction of high-frequency input and output ripple currents and conducted-EMI filtering becomes easier and less expensive.

The UCC28070-Q1 features multiple innovations including current synthesis and quantized voltage feedforward to promote performance enhancements in PF, efficiency, THD, and transient response. In addition, frequency dithering, clock synchronization, and slew-rate enhancement further expand the potential for performance improvements. Also, protection features include output overvoltage detection, programmable peak-current limit, undervoltage lockout, and open-loop protection.
filter Find other AC/DC & DC/DC controllers (external FET)
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Drop-in replacement with upgraded functionality to the compared device
UCC28070 ACTIVE Two-phase Interleaved continuous conduction mode (CCM) PFC controller This is the non-automotive version

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 6
Type Title Date
* Data sheet UCC28070-Q1 Interleaving Continuous Conduction Mode PFC Controller datasheet (Rev. B) PDF | HTML 06 Sep 2025
Application note PFC Design Choice for On Board Charger Designs 24 May 2018
Application brief Reducing Switching Losses in On-Board Chargers for Electric Vehicles 27 Mar 2018
Technical article Hybrid electric vehicles and electric vehicles need different isolated DC/DCs to w PDF | HTML 27 Dec 2017
Technical article Are you on-board? Demystifying EV charging systems PDF | HTML 31 Jul 2017
Application note UCC28070 Implement Bridgeless PFC Pre-Regulator Design 18 Jun 2009

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

UCC28070EVM — UCC28070 Evaluation module

The UCC28070 evaluation module is a 300W, two-phase interleaved, PFC pre-regulator that uses average current mode control techniques to achieve near unity power factor. The pre-regulator was designed to operate off a universal ac line input of 85V to 265V and provides a regulated 390V dc output. (...)
User guide: PDF
Not available on TI.com
Gerber file

UCC28070 Mathcad Design Tool

SLUC667.ZIP (217 KB)
Download
Package Pins CAD symbols, footprints & 3D models
TSSOP (PW) 20 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos