TPS3803
- Single Voltage Detector (TPS3803): Adjustable/1.5 V
- Dual Voltage Detector (TPS3805): Adjustable/3.3 V
- High ±1.5% Threshold Voltage Accuracy
- Supply Current: 3 µA Typical at VDD = 3.3 V
- Push/Pull Reset Output (TPS3805) Open-Drain Reset Output (TPS3803)
- Temperature Range: -40°C to +85°C
- 5-Pin SC-70 Package
- APPLICATIONS
- Applications Using DSPs, Microcontrollers, or Microprocessors
- Wireless Communication Systems
- Portable/Battery-Powered Equipment
- Programmable Controls
- Intelligent Instruments
- Industrial Equipment
- Notebook/Desktop Computers
- Automotive Systems
All trademarks are the property of their respective owners.
The TPS3803 and TPS3805 families of supervisory circuits provide circuit initialization and timing supervision, primarily for DSPs and processor-based systems.
The TPS3803G15 device has a fixed-sense threshold voltage VIT set by an internal voltage divider, whereas the TPS3803-01 has an adjustable SENSE input that can be configured by two external resistors. In addition to the fixed sense threshold monitored at VDD, the TPS3805 devices provide a second adjustable SENSE input. RESET is asserted in case any of the two voltages drops below VIT.
During power on, RESET is asserted when supply voltage VDD becomes higher than 0.8 V. Thereafter, the supervisory circuit monitors VDD (and/or SENSE) and keeps RESET active as long as VDD or SENSE remains below the threshold voltage VIT. As soon as VDD (SENSE) rises above the threshold voltage VIT , RESET is deasserted again. The product spectrum is designed for 1.5 V, 3.3 V, and adjustable supply voltages. The devices are available in a 5-pin SC-70 package.
The TPS3803 and TPS3805 devices are characterized for operation over a temperature range of -40°C to +85°C.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | Voltage Detector datasheet (Rev. A) | 2007年 6月 26日 | |
| Application note | Voltage Supervisors (Reset ICs): Frequently Asked Questions (FAQs) (Rev. A) | 2020年 3月 17日 | ||
| E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 2019年 6月 28日 | ||
| Application note | Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs | 2011年 9月 19日 | ||
| Test report | PMP2960 Test Results | 2011年 1月 18日 | ||
| Test report | PMP1941 TEST RESULTS | 2011年 1月 6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)。
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-010008 — 適合電網應用暫態保護的平箝制 TVS 架構參考設計
PMP21103 — 具有平穩過渡至輔助設備的 5 類 PoE PD (12 V/2.5 A) 電源參考設計
需要支援 IEEE802.3bt 的 PSE 控制器嗎?進一步瞭解 TPS23881。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-SC70 (DCK) | 5 | 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