LM3880-Q1
- Qualified for automotive applications
- AEC-Q100 qualified with the following results:
- Device temperature grade: –40°C to 125°C junction uemperature range
- Simple solution for sequencing three voltage rails from 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
The LM3880-Q1 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-Q1 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.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LM3880-Q1 Simple Power Sequencer datasheet (Rev. A) | 2021年 2月 26日 | |
| Technical article | The need for sequencing in automotive applications | PDF | HTML | 2018年 1月 30日 | |
| Technical article | Improving DDR Memory Performance in Automotive Applications | PDF | HTML | 2017年 6月 22日 | |
| Analog Design Journal | Power-supply sequencing for FPGAs | 2014年 10月 24日 | ||
| Application note | LM1771 and LM3880 Based FPGA Power Supply Reference Design (Rev. A) | 2013年 5月 5日 | ||
| Application note | AN-1603 LM274X Reference Designs (Rev. C) | 2013年 5月 1日 | ||
| Application note | Power Supply Design Considerations for Modern FPGAs (Power Designer 121) | 2010年 2月 2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)。
LM3880EVAL — 電源序列器
The LM3880 evaluation board has been designed to connect directly to the power supplies of an existing system to enable sequencing. Upon enabling the device, the three open drain output flags will rise in sequential order, 1-2-3. Once the part is disabled, the shutdown sequence will occur in (...)
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前，建立完整的終端設備設計和解決方案原型，進而縮短上市時間並降低開發成本。
在 PSpice for TI 設計與模擬工具中，您可以搜尋 TI (...)
TIDA-00803 — 適用於前置攝影機系統且採用單核電壓應用處理器的車用電源設計
TIDA-00530 — 適用於低功耗 TDA3x 系統的車用電源參考設計
TIDA-00346 — 適用於入門級核心應用處理器架構 ADAS 系統的成本最佳化電源供應器解決方案
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-23 (DBV) | 6 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點