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AC/DC- und DC/DC-Controller (externer FET)

UCC28070-Q1

AKTIV

Zweiphasiger Interleaved-CCM-PFC-Controller für Continuous-Conduction-Modus (CCM) für Fahrzeuganwend

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Datenblatt

UCC28070-Q1

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

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.
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Technische Dokumentation

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Typ Titel Datum
* 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 Mai 2018
Application brief Reducing Switching Losses in On-Board Chargers for Electric Vehicles 27 Mär 2018
Technical article Hybrid electric vehicles and electric vehicles need different isolated DC/DCs to w PDF | HTML 27 Dez 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 und Entwicklung

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Evaluierungsplatine

UCC28070EVM — UCC28070-Evaluierungsmodul

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. (...)
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Gerberdatei

UCC28070 Mathcad Design Tool

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