INA199

現行

26V、雙向電流感測放大器

產品詳細資料

Product type Analog output Common-mode voltage (max) (V) 26 Common-mode voltage (min) (V) -0.3 Input offset (±) (max) (µV) 150 Input offset drift (±) (typ) (µV/°C) 0.1 Features Bidirectional, Low-side Capable Rating Catalog Voltage gain (V/V) 50, 100, 200 CMRR (min) (dB) 100 Bandwidth (kHz) 14, 30, 80 Supply voltage (max) (V) 26 Supply voltage (min) (V) 2.7 Iq (max) (mA) 0.115 Number of channels 1 Comparators (#) 0 Gain error (%) 0.9, 1.4 Gain error drift (±) (max) (ppm/°C) 10 Slew rate (V/µs) 0.4 Operating temperature range (°C) -40 to 125
Product type Analog output Common-mode voltage (max) (V) 26 Common-mode voltage (min) (V) -0.3 Input offset (±) (max) (µV) 150 Input offset drift (±) (typ) (µV/°C) 0.1 Features Bidirectional, Low-side Capable Rating Catalog Voltage gain (V/V) 50, 100, 200 CMRR (min) (dB) 100 Bandwidth (kHz) 14, 30, 80 Supply voltage (max) (V) 26 Supply voltage (min) (V) 2.7 Iq (max) (mA) 0.115 Number of channels 1 Comparators (#) 0 Gain error (%) 0.9, 1.4 Gain error drift (±) (max) (ppm/°C) 10 Slew rate (V/µs) 0.4 Operating temperature range (°C) -40 to 125
SOT-SC70 (DCK) 6 4.2 mm² 2 x 2.1 UQFN (RSW) 10 2.52 mm² 1.8 x 1.4
  • Wide Common-Mode Range: –0.3 V to 26 V
  • Offset Voltage: ±150 µV (Maximum) (Enables Shunt Drops of 10-mV Full-Scale)
  • Accuracy:
    • Gain Error (Maximum Over Temperature):
      • ±1% (C Version)
      • ±1.5% (A and B Versions)
    • 0.5-µV/°C Offset Drift (Maximum)
    • 10-ppm/°C Gain Drift (Maximum)
  • Choice of Gains:
    • INA199x1: 50 V/V
    • INA199x2: 100 V/V
    • INA199x3: 200 V/V
  • Quiescent Current: 100 µA (Maximum)
  • Packages: 6-Pin SC70, 10-Pin UQFN
  • Wide Common-Mode Range: –0.3 V to 26 V
  • Offset Voltage: ±150 µV (Maximum) (Enables Shunt Drops of 10-mV Full-Scale)
  • Accuracy:
    • Gain Error (Maximum Over Temperature):
      • ±1% (C Version)
      • ±1.5% (A and B Versions)
    • 0.5-µV/°C Offset Drift (Maximum)
    • 10-ppm/°C Gain Drift (Maximum)
  • Choice of Gains:
    • INA199x1: 50 V/V
    • INA199x2: 100 V/V
    • INA199x3: 200 V/V
  • Quiescent Current: 100 µA (Maximum)
  • Packages: 6-Pin SC70, 10-Pin UQFN

The INA199 series of voltage-output, current-shunt monitors (also called current-sense amplifiers) are commonly used for overcurrent protection, precision-current measurement for system optimization, or in closed-loop feedback circuits. This series of devices can sense drops across shunt resistors at common-mode voltages from –0.3 V to 26 V, independent of the supply voltage. Three fixed gains are available: 50 V/V, 100 V/V, and 200 V/V. The low offset of the zero-drift architecture enables current sensing with maximum drops across the shunt as low as 10-mV full-scale.

These devices operate from a single 2.7-V to 26-V power supply, drawing a maximum of 100 µA of supply current. All versions are specified from –40°C to 125°C, and offered in both SC70-6 and thin UQFN-10 packages.

The INA199 series of voltage-output, current-shunt monitors (also called current-sense amplifiers) are commonly used for overcurrent protection, precision-current measurement for system optimization, or in closed-loop feedback circuits. This series of devices can sense drops across shunt resistors at common-mode voltages from –0.3 V to 26 V, independent of the supply voltage. Three fixed gains are available: 50 V/V, 100 V/V, and 200 V/V. The low offset of the zero-drift architecture enables current sensing with maximum drops across the shunt as low as 10-mV full-scale.

These devices operate from a single 2.7-V to 26-V power supply, drawing a maximum of 100 µA of supply current. All versions are specified from –40°C to 125°C, and offered in both SC70-6 and thin UQFN-10 packages.

下載 觀看有字幕稿的影片 影片

您可能會感興趣的類似產品

open-in-new 比較替代產品
可直接投入的替代產品,相較於所比較的裝置,具備升級功能
INA181 現行 26-V 雙向 350-kHz 電流感測放大器 The INA181 has similar functionality with higher speed perfromance
INA210 現行 26V、雙向、高精度電流感應放大器 The INA210 is a pin-for-pin accuracy upgrade to the INA199x3.
INA213 現行 26V、雙向、高精度電流感應放大器 The INA213 is a pin-for-pin accuracy upgrade to the INA199x1.
INA214 現行 26V、雙向、高精度電流感應放大器 The INA214 is a pin-for-pin accuracy upgrade to the INA199x2.

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件,然後再試一次。
檢視所有 17
重要文件 類型 標題 格式選項 日期
* Data sheet INA199 26-V, Bidirectional, Zero-Drift, Low- or High-Side,Voltage-Output, Current-Shunt Monitor datasheet (Rev. H) PDF | HTML 2023年 10月 17日
Application note Risks and Prevention of ESD, EOS, and Latch Up Events for Current Sense Amplifiers PDF | HTML 2024年 11月 18日
Application brief Precision Current Measurements on High-Voltage Power-Supply Rails (Rev. F) PDF | HTML 2022年 10月 17日
E-book An Engineer's Guide to Current Sensing (Rev. B) 2022年 4月 12日
Application note Using a PCB Copper Trace as a Current-Sense Shunt Resistor PDF | HTML 2022年 1月 25日
Application brief Integrating the Current Sensing Signal Path (Rev. B) PDF | HTML 2021年 9月 29日
Selection guide Current Sense Amplifiers (Rev. E) 2021年 9月 20日
Analog Design Journal Current sensing in high‐power USB Type‐C applications 2020年 12月 21日
Circuit design Low-Drift, Low-Side, Bidirectional Current Sensing Circuit (Rev. A) PDF | HTML 2020年 12月 2日
Application brief External current sense amps vs integrated onboard amplifiers for current sensing (Rev. B) 2019年 2月 19日
Application note Closed-Loop Analysis of Load-Induced Amplifier Stability Issues Using Zout 2017年 10月 27日
Technical article Precise constant current regulation helps advance fast-charging PDF | HTML 2017年 6月 15日
Application brief Low-Side Current Sense Circuit Integration 2017年 3月 30日
White paper Overcurrent protection enables more efficient and reliable systems 2016年 5月 16日
Technical article How to get started with current sense amplifiers – part 4 PDF | HTML 2015年 7月 16日
Technical article What are you sensing? Re-thinking system efficiency and reliability - part 1 PDF | HTML 2015年 5月 27日
Technical article How to get started with current sense amplifiers – part 1 PDF | HTML 2015年 5月 19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)。

開發板

INA199EVM — INA199 評估模組

The INA199B1-B3 devices are voltage output, high-side measurement, bi-directional, zero-drift current

shunt monitors. The INA199EVM is intended to provide basic functional evaluation of this device family.  The fixture layout is not intended to be a model for the target circuit, nor is it laid (...)

使用指南: PDF
TI.com 無法提供
模擬型號

INA199A1 PSpice Model

SBOMBC8.ZIP (24 KB) - PSpice Model
模擬型號

INA199A1 TINA Reference Design

SBOM926.TSC (252 KB) - TINA-TI Reference Design
模擬型號

INA199A1 TINA Spice Macromodel

SBOM925.ZIP (7 KB) - TINA-TI Spice Model
模擬型號

INA199A2 PSpice Model

SBOMBC1.ZIP (24 KB) - PSpice Model
模擬型號

INA199A2 TINA Reference Design

SBOM928.TSC (253 KB) - TINA-TI Reference Design
模擬型號

INA199A2 TINA Spice Macromodel

SBOM927.ZIP (7 KB) - TINA-TI Spice Model
模擬型號

INA199A3 PSpice Model

SBOMBD0.ZIP (24 KB) - PSpice Model
模擬型號

INA199A3 TINA Reference Design

SBOM930.TSC (253 KB) - TINA-TI Reference Design
模擬型號

INA199A3 TINA Spice Macromodel

SBOM929.ZIP (7 KB) - TINA-TI Spice Model
計算工具

ANALOG-ENGINEER-CALC PC software analog engineer's calculator

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)

支援產品和硬體

支援產品和硬體

計算工具

CS-AMPLIFIER-ERROR-TOOL Current Sense Amplifier Comparison and Error Tool

This Excel calculator provides a comparison between two and five of our standard current sense amplifiers, delivering a chart containing the basic parameters of each device. This calculator also takes system condition inputs from users such as common-mode voltage, supply voltage, shunt resistor (...)
支援產品和硬體

支援產品和硬體

設計工具

CIRCUIT060033 — 具有整合式精密增益的低漂移、低壓側、雙向電流感測電路

下圖所示的低壓側雙向電流分流監控器解決方案可精確測量 –4 A 至 4 A 的電流,且可針對不同電流量測範圍輕鬆變更設計參數。INA21x 系列的電流分流監控器具備整合式精密增益電阻器及零漂移架構,可實現分流器中最大壓降低至 10-mV 的全刻度電流感測。
使用指南: PDF
設計工具

CIRCUIT060035 — 具有窗型比較器電路的雙向電流感測

此雙向電流感測解決方案採用電流感測放大器與高速雙比較器,並具備軌對軌輸入共模範圍,可在比較器輸出 (OUTA 和 OUTB) 處建立過電流 (OC) 警示訊號,如果輸入電流 (IG1) 高於 100 A 或降至 -35 A 以下。在此實作中,兩個過電流警示訊號都是高電位作動,因此當超過 100 A 或 -35 A 閾值時,比較器輸出將會變高。在兩個比較器上實作外部磁滯,因此當電流降低 10% (90 A 和 -31 A) 時,比較器輸出將回到邏輯低狀態。雖然下方電路將分流電阻器 R8 連接至接地,但相同的電路仍適用於高壓側電流感測,最高可達 INA 的共模電壓範圍。
設計工具

CIRCUIT060037 — 精密過電流閂鎖電路

這個高壓側電流感測解決方案採用電流感測放大器、含整合式參考的比較器以及 P 通道 MOSFET,以建立過電流閂鎖電路。當偵測到負載電流大於 200 mA 時,電路會中斷系統與電源的連接。比較器輸出將閂鎖 (將 P 通道 MOSFET 的閘極電壓保持在 0 V),直到電路的電源開始循環,因為比較器會驅動 P 通道 MOSFET 的閘極,並將訊號傳送回電流感測放大器的參考針腳。
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 (...)
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 (...)
使用指南: PDF
參考設計

TIDA-00302 — 具瞬態穩定性的電流分流監控器參考設計

This high-side current shunt monitor is used to measure the voltage developed across a current-sensing resistor when current passes through it.

Additionally, an external protection circuit is implemented to provide surge and fast-transient protection and demonstrate the different immunity levels to (...)

Design guide: PDF
電路圖: PDF
參考設計

TIDA-00753 — 使用比流器進行三相 AC 電流量測參考設計

TIDA-00753 參考設計展示了使用 INA199 零漂移分流監測器實現三相馬達高精度、寬範圍 AC 電流測量的解決方案。此設計在增益級設定為 200 時,功耗僅 25mW,相較於分立式解決方案可顯著降低功耗。由於 INA199 內建高精度電阻,此設計的佈局面積與 BOM 成本相較分立式解決方案大幅降低。
Design guide: PDF
電路圖: PDF
參考設計

PMP10594 — 97% 效率、125W、廣泛輸入同步 4 開關降壓-升壓電池充電器參考設計

PMP10594 是採用 LM5175 控制器的同步 4 開關降壓升壓轉換器參考設計,適用於電池充電器應用。輸出電壓設定點可透過在 7.1V 至 9.2V 範圍內的 PWM 訊號進行調整。I2C 編程允許獨立控制平均輸入電流和充電電流。全刻度輸入電流限制為 6A,充電電流則可編程為 12.5A。LM5175 平均電流迴路可設定最大輸出電流 20A,在正常情況不應觸發。電流模式控制器內建額外的逐脈衝電流限制,使其成為非常穩固的設計。如果電池電壓低於 6V,則使用電池斷開開關提供微電流充電。
Test report: PDF
電路圖: PDF
參考設計

TIDA-00748 — 適用於汽車應用的 60W 同步升壓 LED 驅動器參考設計

TIDA-00748 is a 60W Synchronous Boost Design for automotive LED application utilizing the Synchronous Boost Converter LM5122-Q1.  This design applies to automotive lighting for exterior lighting such as headlights and taillights and also interior LED lighting systems. The design accepts an (...)
Test report: PDF
電路圖: PDF
參考設計

TIDM-LPSM — 使用 FRAM 的低功耗微型步進馬達驅動器參考設計

Controlled by the  MSP-EXP430FR5969 FRAM LaunchPad, this 20-pin boosterpack utilizes the DRV8836 motor driver for operating low-voltage stepper motors with minimal power consumption to better optimize battery life.  Micro stepping logic provides for smooth motor steps, a INA199 current (...)
Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-SC70 (DCK) 6 Ultra Librarian
UQFN (RSW) 10 Ultra Librarian

訂購與品質

內含資訊:
  • 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
  • 進行中的可靠性監測
內含資訊:
  • 晶圓廠位置
  • 組裝地點

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

內容係由 TI 和社群貢獻者依「現狀」提供,且不構成 TI 規範。檢視使用條款

若有關於品質、封裝或訂購 TI 產品的問題,請參閱 TI 支援。​​​​​​​​​​​​​​

影片