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AC/DC 和 DC/DC 控制器 (外部 FET)

UCC28700-Q1

現行

具汽車級的小型一次側調節 PWM 控制器

立即訂購
產品規格表

UCC28700-Q1

現行
產品規格表 立即訂購

產品詳細資料

Operating temperature range (°C) -40 to 125 Control mode Primary-side regulation Topology Buck, Flyback Rating Automotive Features Automotive qualified, DCM, Leading edge blanking, Light load efficiency, Low power, Overcurrent protection, Primary-side regulated, Soft start Duty cycle (max) (%) 99 TI functional safety category Functional Safety-Capable
Operating temperature range (°C) -40 to 125 Control mode Primary-side regulation Topology Buck, Flyback Rating Automotive Features Automotive qualified, DCM, Leading edge blanking, Light load efficiency, Low power, Overcurrent protection, Primary-side regulated, Soft start Duty cycle (max) (%) 99 TI functional safety category Functional Safety-Capable
SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified with the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
    • Device HBM Classification Level 2: ±2 kV
    • Device CDM Classification Level C4B: 750 V
  • Functional Safety-Capable
  • < 30-mW Standby Power Consumption
  • Primary-Side Regulation (PSR) Eliminates Opto-Coupler
  • ±5% Voltage and Current Regulation
  • 130-kHz Maximum Switching Frequency
  • Quasi-Resonant Valley-Switching Operation for Highest Overall Efficiency
  • Patent-Pending Frequency-Jitter Scheme to Ease EMI Compliance
  • Wide VDD Range Allows Small Bias Capacitor
  • Clamped Gate-Drive Output for MOSFET
  • Protection Functions: Overvoltage, Low-Line, and Overcurrent
  • Programmable Cable Compensation
  • SOT23-6 Package
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified with the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
    • Device HBM Classification Level 2: ±2 kV
    • Device CDM Classification Level C4B: 750 V
  • Functional Safety-Capable
  • < 30-mW Standby Power Consumption
  • Primary-Side Regulation (PSR) Eliminates Opto-Coupler
  • ±5% Voltage and Current Regulation
  • 130-kHz Maximum Switching Frequency
  • Quasi-Resonant Valley-Switching Operation for Highest Overall Efficiency
  • Patent-Pending Frequency-Jitter Scheme to Ease EMI Compliance
  • Wide VDD Range Allows Small Bias Capacitor
  • Clamped Gate-Drive Output for MOSFET
  • Protection Functions: Overvoltage, Low-Line, and Overcurrent
  • Programmable Cable Compensation
  • SOT23-6 Package

The UCC28700-Q1 of flyback power supply controllers provides Constant-Voltage (CV) and Constant-Current (CC) output regulation without the use of an optical coupler. The devices process information from the primary power switch and an auxiliary flyback winding for precise control of output voltage and current. Low start-up current, dynamically controlled operating states and a tailored modulation profile support very low standby power without sacrificing start-up time or output transient response.

Control algorithms in the UCC28700-Q1 allows operating efficiencies to meet or exceed applicable standards. The output drive interfaces to a MOSFET power switch. Discontinuous Conduction Mode (DCM) with valley switching reduces switching losses. Modulation of switching frequency and primary current peak amplitude (FM and AM) keeps the conversion efficiency high across the entire load and line ranges.

The controllers have a maximum switching frequency of 130 kHz and always maintain control of the peak-primary current in the transformer. Protection features help keep primary and secondary component stresses in check. The UCC28700-Q1 allows the level of cable compensation to be programmed.

The UCC28700-Q1 of flyback power supply controllers provides Constant-Voltage (CV) and Constant-Current (CC) output regulation without the use of an optical coupler. The devices process information from the primary power switch and an auxiliary flyback winding for precise control of output voltage and current. Low start-up current, dynamically controlled operating states and a tailored modulation profile support very low standby power without sacrificing start-up time or output transient response.

Control algorithms in the UCC28700-Q1 allows operating efficiencies to meet or exceed applicable standards. The output drive interfaces to a MOSFET power switch. Discontinuous Conduction Mode (DCM) with valley switching reduces switching losses. Modulation of switching frequency and primary current peak amplitude (FM and AM) keeps the conversion efficiency high across the entire load and line ranges.

The controllers have a maximum switching frequency of 130 kHz and always maintain control of the peak-primary current in the transformer. Protection features help keep primary and secondary component stresses in check. The UCC28700-Q1 allows the level of cable compensation to be programmed.
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UCC28700 現行 具 PSR 和可編程纜線補償的定電壓、定電流 PWM This is the non-automotive variant

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類型 標題 日期
* Data sheet UCC28700-Q1 Constant-Voltage, Constant-Current Controller With Primary-Side Regulation datasheet (Rev. A) PDF | HTML 2020年 12月 8日
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 2024年 4月 30日
White paper Isolated Bias Power Supply Architecture for HEV and EV Traction Inverters PDF | HTML 2023年 10月 11日
Application brief Designing a Robust Traction Inverter Redundant Power Supply From 800 V Battery (Rev. C) PDF | HTML 2023年 2月 16日
Functional safety information UCC28700-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 2020年 8月 18日
Application note Minimize Standby Consumption for UCC287XX Family 2019年 8月 1日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
Technical article Hybrid electric vehicles and electric vehicles need different isolated DC/DCs to w PDF | HTML 2017年 12月 27日
Application note Troubleshooting TI PSR controllers 2016年 10月 3日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

UCC28700EVM-068 — UCC28700 評估模組

The Texas Instruments UCC28700EVM-068 evaluation module (EVM) helps designers evaluate the performance of the UCC28700 Constant-Voltage, Constant-Current PWM with Primary-Side Regulation. The 5W EVM is used for evaluating an off line adapter for USB applications. It converts a 90V to 265V RMS (...)
使用指南: PDF
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模擬型號

UCC2870x PSPICE Transient Model

SLUM455.ZIP (131 KB) - PSpice Model
下載
模擬型號

UCC2870x TINA-TI Transient Reference Design

SLUM619.TSC (195 KB) - TINA-TI Reference Design
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模擬型號

UCC2870x TINA-TI Transient Spice Model

SLUM617.ZIP (101 KB) - TINA-TI Spice Model
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計算工具

SLUC381 — MathCAD Design Tool

支援產品和硬體

支援產品和硬體

產品
AC/DC 和 DC/DC 控制器 (外部 FET)
UCC28700 — 具 PSR 和可編程纜線補償的定電壓、定電流 PWM UCC28700-Q1 — 具汽車級的小型一次側調節 PWM 控制器 UCC28701 — 具 PSR、NTC 選項和 0 mV 纜線補償的定電壓、定電流 PWM UCC28702 — 具 PSR、NTC 選項和 150mV 纜線補償的定電壓、定電流 PWM UCC28703 — 具 PSR、NTC 選項和 300mV 纜線補償的定電壓、定電流 PWM
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計算工具

SLUC408 — UCC28700 Excel 97 Design Tool

支援產品和硬體

支援產品和硬體

產品
AC/DC 和 DC/DC 控制器 (外部 FET)
UCC28700 — 具 PSR 和可編程纜線補償的定電壓、定電流 PWM UCC28700-Q1 — 具汽車級的小型一次側調節 PWM 控制器 UCC28701 — 具 PSR、NTC 選項和 0 mV 纜線補償的定電壓、定電流 PWM UCC28702 — 具 PSR、NTC 選項和 150mV 纜線補償的定電壓、定電流 PWM UCC28703 — 具 PSR、NTC 選項和 300mV 纜線補償的定電壓、定電流 PWM
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參考設計

TIDA-01604 — 適用於 HEV/EV 車載充電器的 98.6% 效率、6.6-kW 圖騰柱 PFC 參考設計

This reference design functions from a base of silicon carbide (SiC) MOSFETs that are driven by a C2000 microcontroller (MCU) with SiC-isolated gate drivers. The design implements three-phase interleaving and operates in continuous conduction mode (CCM) to achieve a 98.46% efficiency at a 240-V (...)
Design guide: PDF
電路圖: PDF
參考設計

PMP20583 — 適用於電動車電池監控的主要側穩壓返馳式轉換器參考設計

PMP20583 is a primary-side regulated flyback reference design which provides a ground referenced 5V output and an isolated 5V output at up to 80mA each from an input voltage of 37V to 125V. This design uses the UCC28700-Q1 flyback controller for constant voltage and constant current control of the (...)
Test report: PDF
電路圖: PDF
參考設計

PMP10739 — 90 至 110Vin 12Vout @ 0.3A 非同步降壓轉換器參考設計

PMP10739 is a 3.6W buck converter using the UCC28700 controller IC. The design accepts an input voltage of 90Vin to 110Vin and provides an output of 12Vout capable of supplying 0.3A of current to the load. The UCC28700 has a frequency dithering feature for reduced EMI.
Test report: PDF
電路圖: PDF
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SOT-23 (DBV) 6 Ultra Librarian
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訂購與品質

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  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
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