TLV809
- Precision supply voltage monitor: 2.5 V, 3 V, 3.3 V, 5 V
- Power-on reset generator with a fixed delay time of 200 ms
- Supply current: 9 µA (typical)
- Temperature range: –40°C to +85°C
- 3-Pin SOT-23 package
- Pin-for-pin compatible with the MAX809
The TLV809 family of supervisory circuits provides circuit initialization and timing supervision, primarily for digital signal processors (DSPs) and processor-based systems. The newer TLV809E device is a pin-to-pin compatible alternative.
During power-on, RESET is asserted when the supply voltage (VDD) becomes greater than 1.1 V. Thereafter, the supervisory circuit monitors VDD and keeps RESET active as long as VDD remains below the threshold voltage, VIT. An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time (td(typ) = 200 ms) starts after VDD rises above the threshold voltage, VIT. When the supply voltage drops below the VIT threshold voltage, the output becomes active (low) again. No external components are required. All devices in this family have a fixed sense-threshold voltage (VIT) set by an internal voltage divider.
This product family is designed for supply voltages of 2.5 V, 3 V, 3.3 V, and 5 V. The circuits are available in a 3-pin SOT-23 package. The TLV809 devices are characterized for operation over a temperature range of –40°C to +85°C.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | TLV809 3-Pin Supply Voltage Supervisor datasheet (Rev. F) | 2020/12/30 | |||
| 應用說明 | Voltage Supervisors (Reset ICs): Frequently Asked Questions (FAQs) (Rev. A) | 2020/3/17 | ||||
| 選擇指南 | Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H) | 2020/2/28 | ||||
| 技術文章 | Using low-Iq voltage supervisors to extend battery life in handheld electronics | PDF | HTML | 2019/9/27 | |||
| 電子書 | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 2019/6/28 | ||||
| 測試報告 | TIDA-00274 Test Results | 2014/7/16 | ||||
| 使用指南 | TIDA-00274 Sensorless 3-Phase BLDC Drive | 2014/7/16 |
設計與開發
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TIDC517 — TIDA-00274 Software
TIDA-00274 — 適用於無感測器梯形控制且具有成本效益的三相無刷 DC 驅動器參考設計
這款參考評估模組搭載 DRV8313，搭載整合式 MOSFET 及 MSP430G2553 MCU 的 3 相位驅動器，提供具成本效益的無感測器解決方案，以梯形整流執行 3 相位 BLDC 馬達。參考設計軟體隨附易於使用的 GUI ，以進行快速評估。 此外也共用軟體專案檔案，以根據終端使用者需求開發獨立的應用程式專案。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-23 (DBZ) | 3 | Ultra Librarian |
| SOT-23 (DBV) | 3 | Ultra Librarian |