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監控器和重設 IC

TLV809

現行

具低電位作動、推挽重設的 3 針腳電壓監控器 (重設 IC)

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產品規格表

TLV809

現行
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產品詳細資料

Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 2.25, 2.64, 2.93, 4.55 Features Reset time delay, Undervoltage monitor only Reset threshold accuracy (%) 2, 2.2, 2.3 Iq (typ) (mA) 0.009 Output driver type/reset output Active-low, Push-Pull Time delay (ms) 200 Supply voltage (min) (V) 2 Supply voltage (max) (V) 6 Rating Catalog Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 85
Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 2.25, 2.64, 2.93, 4.55 Features Reset time delay, Undervoltage monitor only Reset threshold accuracy (%) 2, 2.2, 2.3 Iq (typ) (mA) 0.009 Output driver type/reset output Active-low, Push-Pull Time delay (ms) 200 Supply voltage (min) (V) 2 Supply voltage (max) (V) 6 Rating Catalog Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 85
SOT-23 (DBV) 3 8.12 mm² 2.9 x 2.8 SOT-23 (DBZ) 3 6.9204 mm² 2.92 x 2.37
  • 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
  • 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.

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.
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類型 標題 日期
* Data sheet TLV809 3-Pin Supply Voltage Supervisor datasheet (Rev. F) 2020年 12月 30日
Application note Voltage Supervisors (Reset ICs): Frequently Asked Questions (FAQs) (Rev. A) 2020年 3月 17日
Selection guide Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H) 2020年 2月 28日
Technical article Using low-Iq voltage supervisors to extend battery life in handheld electronics PDF | HTML 2019年 9月 27日
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 2019年 6月 28日
User guide TIDA-00274 Sensorless 3-Phase BLDC Drive 2014年 7月 16日
Test report TIDA-00274 Test Results 2014年 7月 16日

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TLV809KEVM-019 — 適用於低功耗 3 針腳電壓監控器 (重設 IC) 的 TLV809 評估模組

TLV809KEVM-019 評估模組 (EVM) 是完全組裝且經過測試的電路，可在 3.3 V 的供應電壓下輕鬆評估 TLV809K33 供應電壓監控器 (SVS)。TLV809K33 裝置是低電位作動復位 SVS。當 VDD 電壓大於閾值電壓時，EVM 的輸出 (復位) 為高電平 (相當於電源電壓)，或者當 VDD 電壓小於閾值電壓時，則為低電平 (0 V)。
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TLV809 — 具低電位作動、推挽重設的 3 針腳電壓監控器 (重設 IC)
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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

This reference evaluation module, featuring DRV8313, 3-phase driver with integrated MOSFETs and MSP430G2553 MCU, provides a cost effective sensor-less solution to run of 3-phase BLDC motor in trapezoidal commutation. Reference design software comes with easy to use GUI for quick evaluation.  (...)
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