| FLYiNG 零件編號 | ICLM3880MFE1ABNOPBTI |
| FLYiNG 庫存現貨 | 電洽/Contact |
| 製造商 | TEXAS INSTRUMENTS |
| 製造商零件編號 | LM3880MFE-1AB/NOPB |
| 說明 | LM3880MFE-1AB/NOPB SOT-23-6 TI |
| 無鉛狀態 / RoHS 指令狀態 | RoHS |
| 電源電壓 | 2.7V~5.5V |
| 電源電流 | 25uA |
| 工作溫度 | -40°C ~ 125°C |
| 安裝類型 | 表面黏著式 |
| 封裝／外殼 | SOT-23-6 |
| 標準包裝數量 | 2500/Reel |
文件:LM3880.png)
LM3880
Three-Rail Simple Power Supply Sequencer
Features
LM3880
Three-Rail Simple Power Supply Sequencer
Features
- Simple solution for sequencing three voltage railsfrom a single input signal
- Easily cascade up to three devices to sequence as many as nine voltage rails
- Powerup and powerdown control
- Tiny 2.9-mm x 1.6-mm footprint
- Low quiescent current: 25 μA
- Input voltage range: 2.7 V to 5.5 V
- Standard timing options available
- Advanced driver assistance systems (ADAS)
- Automotive camera modules
- Security cameras
- Servers
- Networking elements
- FPGA power supply sequencing
- Microprocessor and microcontroller sequencing
- Multiple supply sequencing
The LM3880 simple power supply sequencer offers the easiest method to control powerup sequencing and powerdown sequencing of multiple Independent voltage rails. By staggering the startup sequence, it is possible to avoid latch conditions or large in-rush currents that can affect the reliability of the system.
Available in a 6-pin SOT-23 package, the simple sequencer contains a precision enable pin and three open-drain output flags. The open-drain output flags permit that they can be pulled up to distinct voltage supplies separate from the sequencer VDD (only if they do not exceed the recommended maximum voltage of 0.3 V greater than VDD), so as to interface with ICs requiring a range of different enable signals. When the LM3880 is enabled, the three output flags sequentially release, after individual time delays, thus permitting the connected power supplies to start up. The output flags follow a reverse sequence during power down to avoid latch conditions.
EPROM capability allows every delay and sequence to be fully adjustable. Contact Texas Instruments to request a non-standard configuration.
Available in a 6-pin SOT-23 package, the simple sequencer contains a precision enable pin and three open-drain output flags. The open-drain output flags permit that they can be pulled up to distinct voltage supplies separate from the sequencer VDD (only if they do not exceed the recommended maximum voltage of 0.3 V greater than VDD), so as to interface with ICs requiring a range of different enable signals. When the LM3880 is enabled, the three output flags sequentially release, after individual time delays, thus permitting the connected power supplies to start up. The output flags follow a reverse sequence during power down to avoid latch conditions.
EPROM capability allows every delay and sequence to be fully adjustable. Contact Texas Instruments to request a non-standard configuration.
LM3880
三軌簡易電源排序控制器
特性
- 單一輸入信號即可控制三組電壓軌的開機順序
- 最多可串接三顆 LM3880，以控制多達九組電壓軌
- 具備電源啟動與關閉控制
- 超小型封裝（2.9 mm × 1.6 mm）
- 低靜態電流：25 μA
- 輸入電壓範圍：2.7 V 至 5.5 V
- 提供標準化延遲時間選項
應用領域
- ADAS（先進駕駛輔助系統）
- 車載攝影模組
- 監控攝影機
- 伺服器
- 網路設備
- FPGA 電源排序
- 微處理器與微控制器電源排序
- 多電源排序管理
產品描述
LM3880 是一款簡易電源排序控制器，可輕鬆實現多組獨立電壓軌的開機與關機順序控制。透過錯開各電源的啟動時序，可避免鎖存效應 (Latch-up) 或過大浪湧電流，提升系統可靠性。
LM3880 採用 6 引腳 SOT-23 封裝，內建高精度使能 (Enable) 輸入與三組開漏 (Open-Drain) 輸出旗標。這些旗標可獨立拉升至不同電源軌（但不得超過 VDD + 0.3V），以適配不同 IC 的使能訊號需求。當 LM3880 使能後，三組輸出旗標將依序釋放，允許對應的電源依序啟動。當關機時，輸出旗標則反向依序關閉，避免鎖存問題。
此外，LM3880 具備 EPROM 可編程功能，可依需求客製化延遲時間與啟動順序。若需要非標準配置，請聯繫 Texas Instruments 以獲得客製化版本。
