ホーム パワー マネージメント AC/DC スイッチング レギュレータ AC/DC コントローラ

7.2V/6.9V UVLO 搭載、プログラマブル デューティ サイクル、-40℃ ~ 85℃、エコノミー、低消費電力、BICMOS、1MHz、電流モード PWM

UCC2807-1 は新規設計での使用を推奨しません
これまでにご購入されたお客様をサポートする目的でこの製品を引き続き生産しています。新規設計では代替品をご検討ください。
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比較対象デバイスと類似の機能。
UCC2801 アクティブ 9.4V/7.4V UVLO 搭載、50% デューティ サイクル、12V、1A、低消費電力、BICMOS、1MHz、電流モード PWM Wider temperature range
UCC2800 アクティブ 7.2V/6.9V UVLO 搭載、100% デューティ サイクル、12V、1A、低消費電力、BICMOS、1MHz、電流モード PWM Wider temperature range

製品詳細

Topology Boost, Flyback, Forward Control mode Current Features Adjustable switching frequency, Error amplifier, Leading edge blanking, Multi-topology, Programmable max duty cycle, Soft start Duty cycle (max) (%) 78
Topology Boost, Flyback, Forward Control mode Current Features Adjustable switching frequency, Error amplifier, Leading edge blanking, Multi-topology, Programmable max duty cycle, Soft start Duty cycle (max) (%) 78
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • User Programmable Maximum PWM Duty Cycle
  • 100-A Startup Current
  • Operation to 1 MHz
  • Internal Full Cycle Soft Start
  • Internal Leading Edge Blanking of Current Sense Signal
  • 1-A Totem Pole Output

  • User Programmable Maximum PWM Duty Cycle
  • 100-A Startup Current
  • Operation to 1 MHz
  • Internal Full Cycle Soft Start
  • Internal Leading Edge Blanking of Current Sense Signal
  • 1-A Totem Pole Output

The UCC3807 family of high speed, low power integrated circuits contains all of the control and drive circuitry required for off-line and dc-to-dc fixed frequency current mode switching power supplies with minimal external parts count.

These devices are similar to the UCC3800 family, but with the added feature of a user programmable maximum duty cycle. Oscillator frequency and maximum duty cycle are programmed with two resistors and a capacitor. The UCC3807 family also features internal full cycle soft start and internal leading edge blanking of the current sense input.

The UCC3807 family offers a variety of package options, temperature range options, and choice of critical voltage levels. The family has UVLO thresholds and hysteresis levels for off-line and battery powered systems. Thresholds are shown in the table below.

The UCC3807 family of high speed, low power integrated circuits contains all of the control and drive circuitry required for off-line and dc-to-dc fixed frequency current mode switching power supplies with minimal external parts count.

These devices are similar to the UCC3800 family, but with the added feature of a user programmable maximum duty cycle. Oscillator frequency and maximum duty cycle are programmed with two resistors and a capacitor. The UCC3807 family also features internal full cycle soft start and internal leading edge blanking of the current sense input.

The UCC3807 family offers a variety of package options, temperature range options, and choice of critical voltage levels. The family has UVLO thresholds and hysteresis levels for off-line and battery powered systems. Thresholds are shown in the table below.

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技術資料

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上位の文書 タイプ タイトル フォーマットオプション 最新の英語版をダウンロード 日付
* データシート Programmable Maximum Duty Cycle PWM Controller データシート (Rev. B) 2010/10/07

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