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比較器

TLV4021

現行

具有參考的低功耗比較器 (非反相、開漏)

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產品規格表

TLV4021

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 1 Output type Open-collector, Open-drain Propagation delay time (µs) 0.36 Vs (max) (V) 5.5 Vs (min) (V) 1.6 Rating Catalog Features Fail-safe, Hysteresis, Internal Reference, POR Iq per channel (typ) (mA) 0.002 Vos (offset voltage at 25°C) (max) (mV) 4 Rail-to-rail In Operating temperature range (°C) -40 to 125 Input bias current (±) (max) (nA) 5 VICR (max) (V) 5.5 VICR (min) (V) 1.6
Number of channels 1 Output type Open-collector, Open-drain Propagation delay time (µs) 0.36 Vs (max) (V) 5.5 Vs (min) (V) 1.6 Rating Catalog Features Fail-safe, Hysteresis, Internal Reference, POR Iq per channel (typ) (mA) 0.002 Vos (offset voltage at 25°C) (max) (mV) 4 Rail-to-rail In Operating temperature range (°C) -40 to 125 Input bias current (±) (max) (nA) 5 VICR (max) (V) 5.5 VICR (min) (V) 1.6
DSBGA (YKA) 4 0.788544 mm² 0.888 x 0.888
  • Wide supply voltage range: 1.6 V to 5.5 V
  • Precision References: 0.2 V, 0.5 V, and 1.2 V
  • Fixed threshold of 3.2 V
  • Reference accuracy
    • 0.5% at 25°C
    • 1% over temperature
  • Low quiescent current: 2 µA
  • Propagation delay: 360 ns
  • Push-pull and open-drain output options
  • Known startup conditions
  • Non-inverting and inverting input options
  • Precision hysteresis
  • Temperature range: –40°C to +125°C
  • Packages:
    • 0.73 mm × 0.73 mm DSBGA (4-bump)
    • SOT-23 (5-pin)  
  • Wide supply voltage range: 1.6 V to 5.5 V
  • Precision References: 0.2 V, 0.5 V, and 1.2 V
  • Fixed threshold of 3.2 V
  • Reference accuracy
    • 0.5% at 25°C
    • 1% over temperature
  • Low quiescent current: 2 µA
  • Propagation delay: 360 ns
  • Push-pull and open-drain output options
  • Known startup conditions
  • Non-inverting and inverting input options
  • Precision hysteresis
  • Temperature range: –40°C to +125°C
  • Packages:
    • 0.73 mm × 0.73 mm DSBGA (4-bump)
    • SOT-23 (5-pin)  

The TLV40x1 devices are low-power, high-accuracy comparators with precision references and fast response. The comparators are available in an ultra-small, DSBGA package measuring 0.73 mm × 0.73 mm, making the TLV40x1 applicable for space-critical designs like portable or battery-powered electronics where low-power and fast response to changes in operating conditions is required.

The factory-trimmed references and precision hysteresis combine to make the TLV40x1 appropriate for voltage and current monitoring in harsh, noisy environments where slow moving input signals must be converted into clean digital outputs. Similarly, brief glitches on the input are rejected ensuring stable output operation without false triggering.

The TLV40x1 are available in multiple configurations allowing system designers to achieve their desired output response. For example, the TLV4021 and TLV4041 offer a non-inverting input, while the TLV4031 and TLV4051 have an inverting input. Furthermore, the TLV4021 and TLV4031 feature an open-drain output stage, while the TLV4041 and TLV4051 feature a push-pull output stage. Lastly, each comparator in the TLV40x1 family is available with a 0.2V, 0.5V, or 1.2V precision reference.

The TLV40x1 devices are low-power, high-accuracy comparators with precision references and fast response. The comparators are available in an ultra-small, DSBGA package measuring 0.73 mm × 0.73 mm, making the TLV40x1 applicable for space-critical designs like portable or battery-powered electronics where low-power and fast response to changes in operating conditions is required.

The factory-trimmed references and precision hysteresis combine to make the TLV40x1 appropriate for voltage and current monitoring in harsh, noisy environments where slow moving input signals must be converted into clean digital outputs. Similarly, brief glitches on the input are rejected ensuring stable output operation without false triggering.

The TLV40x1 are available in multiple configurations allowing system designers to achieve their desired output response. For example, the TLV4021 and TLV4041 offer a non-inverting input, while the TLV4031 and TLV4051 have an inverting input. Furthermore, the TLV4021 and TLV4031 feature an open-drain output stage, while the TLV4041 and TLV4051 feature a push-pull output stage. Lastly, each comparator in the TLV40x1 family is available with a 0.2V, 0.5V, or 1.2V precision reference.
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類型 標題 日期
* Data sheet TLV40x1 Small-Size, Low-Power Comparator with Precision Reference datasheet (Rev. C) PDF | HTML 2021年 12月 11日
Circuit design Undervoltage protection with comparator circuit (Rev. A) PDF | HTML 2024年 9月 27日
Application brief Voltage Supervision with a Comparator PDF | HTML 2023年 9月 28日
Technical article Use fast, precise overcurrent detection to enable diagnostics in automotive safety PDF | HTML 2019年 6月 24日
Circuit design Fast-response overcurrent event detection circuit 2019年 5月 27日

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開發板

TLV4021-41EVM — 用於整合參考比較器的 TLV40x1 評估模組

TLV40x1EVM 評估模組 (EVM) 將展示 TLV40x1 比較器系列的性能與整合參考。

使用指南: PDF | HTML
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模擬型號

TLV4021 TINA-TI Reference Design (Rev. A)

SNVMBP3A.ZIP (7 KB) - TINA-TI Reference Design
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TLV4021R1 PSpice Model (Rev. A)

SNVMC24A.ZIP (87 KB) - PSpice Model
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TLV4021R1 TINA-TI MACRO and Reference Design

SNVMC74.ZIP (8 KB) - TINA-TI Spice Model
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TLV4021R2 PSpice Model (Rev. A)

SNVMC30A.ZIP (88 KB) - PSpice Model
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TLV4021R2 TINA-TI MACRO and Reference Design

SNVMC75.ZIP (8 KB) - TINA-TI Spice Model
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TLV4021S5 PSpice Model

SNVMC77.ZIP (121 KB) - PSpice Model
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TLV4021S5 TINA-TI MACRO and Reference Design

SNVMC76.ZIP (9 KB) - TINA-TI Spice Model
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設計工具

CIRCUIT060083 — 具有比較器電路的欠電壓保護

此欠電壓保護電路使用一個具有精密整合參考的比較器，在電池電壓驟降至 2.0 V 以下時，於比較器輸出 (OUT) 建立警示訊號。此實作中的欠電壓警示為低電位作動。因此當電池電壓低於 2.0 V 時，比較器輸出會變低，並提供警示訊號給監控輸出的任何裝置。磁滯整合在比較器中，因此當電池電壓上升至 2.034 V 以上時，比較器輸出將回到邏輯高狀態。此電路利用開漏輸出比較器對輸出高邏輯位準進行位準移位，以控制數位邏輯輸入針腳。對於需要驅動 MOSFET 開關閘極的應用，建議使用具推挽輸出的比較器。
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模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI 是有助於評估類比電路功能的設計和模擬環境。這款全功能設計和模擬套件使用 Cadence® 的類比分析引擎。PSpice for TI 包括業界最大的模型庫之一，涵蓋我們的類比和電源產品組合，以及特定類比行為模型，且使用無需支付費用。

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 (...)
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模擬工具

TINA-TI — 基於 SPICE 的類比模擬程式

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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DSBGA (YKA) 4 Ultra Librarian
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