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UCC2818A-Q1

不推薦在新設計中採用

具 10.5V/10V UVLO 和更小閘極驅動電阻器的車用 6kHz 至 220kHz CCM PFC 控制器

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產品規格表
UCC2818A-Q1 不建議用於新設計
此產品將繼續向現有客戶提供。新設計應考量替代產品。
open-in-new 比較替代產品
功能相同，但針腳輸出與所比較的裝置不同。
UCC28070-Q1 現行 車用雙相交錯式連續傳導 (CCM) 模式 PFC 控制器 Interleaved operation for higher power

UCC2818A-Q1

不推薦在新設計中採用
產品規格表 立即訂購

產品詳細資料

Topology Boost, PFC controller Control mode CCM Features < 150 W applications, > 750 W applications, Average current mode, Continuous Control Mode, Enable, OVP Duty cycle (max) (%) 100
Topology Boost, PFC controller Control mode CCM Features < 150 W applications, > 750 W applications, Average current mode, Continuous Control Mode, Enable, OVP Duty cycle (max) (%) 100
SOIC (D) 16 59.4 mm² (9.9 mm × 6 mm)
  • Qualified for Automotive Applications
  • Controls Boost Preregulator to Near-Unity
    Power Factor
  • Limits Line Distortion
  • World-Wide Line Operation
  • Overvoltage Protection
  • Accurate Power Limiting
  • Average Current Mode Control
  • Improved Noise Immunity
  • Improved Feed-Forward Line Regulation
  • Leading Edge Modulation
  • 150-µA Typical Start-Up Current
  • Low-Power BiCMOS Operation
  • 12-V to 17-V Operation
  • Frequency Range of 6 kHz to 220 kHz
  • Qualified for Automotive Applications
  • Controls Boost Preregulator to Near-Unity
    Power Factor
  • Limits Line Distortion
  • World-Wide Line Operation
  • Overvoltage Protection
  • Accurate Power Limiting
  • Average Current Mode Control
  • Improved Noise Immunity
  • Improved Feed-Forward Line Regulation
  • Leading Edge Modulation
  • 150-µA Typical Start-Up Current
  • Low-Power BiCMOS Operation
  • 12-V to 17-V Operation
  • Frequency Range of 6 kHz to 220 kHz

The UCC2818A-Q1 device provides all the functions necessary for active power factor corrected preregulators. The controller achieves near unity power factor by shaping the ac input line current waveform to correspond to that of the ac input line voltage. Average current mode control maintains stable, low distortion sinusoidal line current.

Designed in Texas Instrument’s BiCMOS process, the UCC2818A-Q1 device offers new features such as lower start-up current, lower power dissipation, overvoltage protection, a shunt UVLO detect circuitry, a leading-edge modulation technique to reduce ripple current in the bulk capacitor and an improved, low-offset (±2 mV) current amplifier to reduce distortion at light load conditions.

The UCC2818A-Q1 PFC controller is directly pin-for-pin compatible with the UCC2818 devices. Only the output stage of UCC2818A-Q1 device has been modified to allow use of a smaller external gate drive resistor values. For some power supply designs where an adequately high enough gate drive resistor can not be used, the UCC2818A-Q1 device offers a more robust output stage at the cost of increasing the internal gate resistances. The gate drive of the UC2818A, however, remains strong at ±1.2 A of peak current capability.

The UCC2818A-Q1 device is intended for applications with a fixed supply (VCC). It is available in the 16-pin D package.

The UCC2818A-Q1 device provides all the functions necessary for active power factor corrected preregulators. The controller achieves near unity power factor by shaping the ac input line current waveform to correspond to that of the ac input line voltage. Average current mode control maintains stable, low distortion sinusoidal line current.

Designed in Texas Instrument’s BiCMOS process, the UCC2818A-Q1 device offers new features such as lower start-up current, lower power dissipation, overvoltage protection, a shunt UVLO detect circuitry, a leading-edge modulation technique to reduce ripple current in the bulk capacitor and an improved, low-offset (±2 mV) current amplifier to reduce distortion at light load conditions.

The UCC2818A-Q1 PFC controller is directly pin-for-pin compatible with the UCC2818 devices. Only the output stage of UCC2818A-Q1 device has been modified to allow use of a smaller external gate drive resistor values. For some power supply designs where an adequately high enough gate drive resistor can not be used, the UCC2818A-Q1 device offers a more robust output stage at the cost of increasing the internal gate resistances. The gate drive of the UC2818A, however, remains strong at ±1.2 A of peak current capability.

The UCC2818A-Q1 device is intended for applications with a fixed supply (VCC). It is available in the 16-pin D package.
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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 UCC2818A-Q1 BiCMOS Power-Factor Preregulator datasheet (Rev. A) PDF | HTML 2014/12/11

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