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AC/DC & DC/DC controllers (external FET)

UCC28711

現行

具 PSR、波谷切換、NTC 選項和 0 mV 纜線補償的定電壓、定電流 PWM

立即訂購
產品規格表

UCC28711

現行
產品規格表 立即訂購

產品詳細資料

Vin (min) (V) 21 Vin (max) (V) 450 Iout (max) (A) 3 Operating temperature range (°C) -40 to 125 Control mode Primary-side regulation Topology Buck, Flyback Rating Catalog Vout (min) (V) 3.3 Vout (max) (V) 24 Iq (typ) (A) 0.002 Duty cycle (max) (%) 99
Vin (min) (V) 21 Vin (max) (V) 450 Iout (max) (A) 3 Operating temperature range (°C) -40 to 125 Control mode Primary-side regulation Topology Buck, Flyback Rating Catalog Vout (min) (V) 3.3 Vout (max) (V) 24 Iq (typ) (A) 0.002 Duty cycle (max) (%) 99
SOIC (D) 7 29.4 mm² 4.9 x 6
  • < 10-mW No-Load Power
  • Primary-Side Regulation (PSR) Eliminates Opto-Coupler
  • ±5% Voltage and Current Regulation Across Line and Load
  • 700-V Start-Up Switch
  • 100-kHz Maximum Switching Frequency Enables High-Power Density Charger Designs
  • Resonant Valley-Switching Operation for Highest Overall Efficiency
  • Frequency Jitter to Ease EMI Compliance
  • Wide VDD Range Allows Small Bias Capacitor
  • Clamped Gate-Drive Output for MOSFET
  • Overvoltage, Low-Line, and Overcurrent Protection Functions
  • Programmable Cable Compensation (UCC28710)
  • NTC Resistor Interface (UCC28711, UCC28712 and UCC28713) with Fixed Cable Compensation Options
  • SOIC-7 Package
  • Create a Custom Design Using the UCC28710 With the WEBENCH® Power Designer
  • < 10-mW No-Load Power
  • Primary-Side Regulation (PSR) Eliminates Opto-Coupler
  • ±5% Voltage and Current Regulation Across Line and Load
  • 700-V Start-Up Switch
  • 100-kHz Maximum Switching Frequency Enables High-Power Density Charger Designs
  • Resonant Valley-Switching Operation for Highest Overall Efficiency
  • Frequency Jitter to Ease EMI Compliance
  • Wide VDD Range Allows Small Bias Capacitor
  • Clamped Gate-Drive Output for MOSFET
  • Overvoltage, Low-Line, and Overcurrent Protection Functions
  • Programmable Cable Compensation (UCC28710)
  • NTC Resistor Interface (UCC28711, UCC28712 and UCC28713) with Fixed Cable Compensation Options
  • SOIC-7 Package
  • Create a Custom Design Using the UCC28710 With the WEBENCH® Power Designer

The UCC2871x family of flyback power supply controllers provides isolated-output 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.

An internal 700-V start-up switch, dynamically-controlled operating states and a tailored modulation profile support ultra-low standby power without sacrificing start-up time or output transient response.

Control algorithms in the UCC28710 family allow 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 100 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 UCC28710 allow the cable compensation to be programmed. The UCC28711, UCC28712 and UCC28713 devices allow remote temperature sensing using a negative temperature coefficient (NTC) resistor while providing fixed cable-compensation levels.

The UCC2871x family of flyback power supply controllers provides isolated-output 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.

An internal 700-V start-up switch, dynamically-controlled operating states and a tailored modulation profile support ultra-low standby power without sacrificing start-up time or output transient response.

Control algorithms in the UCC28710 family allow 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 100 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 UCC28710 allow the cable compensation to be programmed. The UCC28711, UCC28712 and UCC28713 devices allow remote temperature sensing using a negative temperature coefficient (NTC) resistor while providing fixed cable-compensation levels.
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UCC28712 現行 具 PSR、波谷切換、NTC 選項和 150mV 纜線補償的定電壓、定電流 PWM Cable compensation threshold is 150 mV versus 0 mV

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類型 標題 日期
* Data sheet UCC2871x Constant-Voltage, Constant-Current Controller With Primary-Side Regulation datasheet (Rev. C) PDF | HTML 2017年 6月 30日
Selection guide Current Sense Amplifiers (Rev. E) 2021年 9月 20日
Application note Flyback Aux Winding OVP and UVLO Fault Sensing Design and Troubleshooting Tips PDF | HTML 2021年 8月 31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
Application note Troubleshooting TI PSR controllers 2016年 10月 3日
White paper Control Challenges for Low Power AC/DC Converters 2015年 10月 2日
White paper Control Challenges for Low Power AC/DC Converters (PPT) 2015年 10月 2日
More literature Exposing the Inner Behavior of a Quasi-Resonant Flyback Converter 2013年 10月 29日
EVM User's guide Using the UCC28711EVM-160 2012年 9月 14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

UCC28711EVM-160 — UCC28711 評估模組

The Texas Instruments UCC28711EVM-160 evaluation module (EVM) helps designers evaluate the performance of the UCC28711 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
TI.com 無法提供
開發板

UCC28740EVM-525 — UCC28740EVM-525 評估模組

The UCC28740EVM-525 evaluation module is a 10W off-line discontinuous mode (DCM) flyback converter that provides constant-voltage (CV) and constant-current (CC) output regulation. It uses optical coupler feedback for tight voltage regulation and improved the transient response to large load steps (...)

使用指南: PDF
TI.com 無法提供
模擬型號

UCC2871x PSpice Transient Model

SLUM464.ZIP (17619 KB) - PSpice Model
下載
模擬型號

UCC2871x TINA-TI Transient Reference Design

SLUM539.TSC (224 KB) - TINA-TI Reference Design
下載
模擬型號

UCC2871x TINA-TI Transient Spice Model

SLUM538.ZIP (119 KB) - TINA-TI Spice Model
下載
計算工具

SLUC590 — UCC2871x Calculator

支援產品和硬體

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產品
AC/DC & DC/DC controllers (external FET)
UCC28710 — 具 PSR、波谷切換和可編程纜線補償的定電壓、定電流 PWM UCC28711 — 具 PSR、波谷切換、NTC 選項和 0 mV 纜線補償的定電壓、定電流 PWM UCC28712 — 具 PSR、波谷切換、NTC 選項和 150mV 纜線補償的定電壓、定電流 PWM UCC28713 — 具 PSR、波谷切換、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-00440 — 用於判斷絕緣電阻的漏電流量測參考設計

This reference design measures insulation resistance up to 100 MΩ. It has an on-board isolated 500-Vdc power supply and an isolated signal conditioning circuit to measure the leakage current. This design is useful to find leakage due to insulation breakdown in transformer and motor windings.
Design guide: PDF
電路圖: PDF
參考設計

PMP21927 — 15-W 多輸出離線返馳參考設計

This reference design takes a universal Vac input and creates three isolated 15-Vdc outputs. The main output can be loaded up to 1-A and achieves over 86% efficiency. The other isolated 15-V outputs can be loaded to 50-mA. These outputs have linear regulators to keep the voltages within 1% (...)
Test report: PDF
電路圖: PDF
參考設計

TIDA-00173 — 適用於馬達驅動器的 400V 至 690V AC 輸入、50W 返馳隔離式電源參考設計

This reference design provides isolated +24V (45W), ±16 V (4.5W), and +6V (0.5W) outputs to power the control electronics in variable speed drives.  The power supply can be either powered directly from 3-phase AC mains (380Vac to 690Vac) or can be powered from the DC-link voltage (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00315 — 適用於伺服驅動器的 100/200Vac 輸入、30W 隔離電源供應參考設計

This reference design provides isolated 24Vdc, 16Vdc (x3) and 6V outputs to power the control electronics, IGBT module and fan for 100Vac/200Vac input servo drives. The power supply can be either powered directly from a single or 3- phase AC mains or can be powered from the DC link voltage. This (...)
Design guide: PDF
電路圖: PDF
參考設計

PMP11135 — 85-265VAC 輸入、13.5V/0.9A PSR 返馳參考設計

The PMP11135 reference design uses the UCC28711 to provide an isolated 13.5V at 0.9A output.  The UCC28711 implements primary-side regulation, eliminating the need for an opto-coupler and reducing the size and cost of the design.  This design meets Class B conducted emissions without the (...)
Test report: PDF
電路圖: PDF
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