UCC3807-3
4.3V/4.1V UVLO 搭載、プログラマブル デューティ サイクル、0℃ ～ 70℃、エコノミー、低消費電力、BICMOS、1MHz、電流モード PWM
UCC3807-3
- 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.
技術資料
| 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 |