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Name: INA199A1DCKR
Brand: Texas Instruments
SKU: INA199A1DCKR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Texas Instruments INA199A1DCKR

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Номер детали:: INA199A1DCKR

Производитель:: Texas Instruments

Категория:: Регулирование/управление током

Упаковка:: 6-TSSOP, SC-88, SOT-363

Технический лист:: INA199A1DCKR.pdf

Описание:: 26-V bidirectional zero-drift low- and high-side current-sense amplifier with 50-V/V gain in 6-pin SC70 package.

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About INA199A1DCKR

Looking for INA199A1DCKR supplier or distributor? Tomato Electronics provides high-quality electronic components including MLCC capacitors, tantalum capacitors, ICs, diodes and more.

Подробности продукта

INA199A1DCKR – TI 26V Bidirectional Zero-Drift Current-Sense Amplifier

INA199A1DCKR is a Texas Instruments voltage-output current-shunt monitor designed for precise low-side and high-side current measurement. With a -0.3V to 26V common-mode range, 50V/V fixed gain, bidirectional sensing capability and compact 6-pin SC70 package, it is suitable for power monitoring, battery charging, telecom equipment, portable systems and overcurrent protection circuits.

FunctionCurrent Sense Amplifier

Gain50V/V

ArchitectureZero-Drift

PackageDCK / SC70-6

Engineering note: Always verify the latest TI datasheet, shunt resistor value, REF pin bias, common-mode voltage, output swing and PCB layout before final production approval.

Component Overview

INA199A1DCKR belongs to the TI INA199 family of zero-drift, voltage-output current-shunt monitors. It measures the small voltage drop across a current-sense resistor and outputs an amplified voltage that can be used by an ADC, MCU, comparator or feedback control circuit.

TomatoElec view: INA199A1DCKR is useful when a design needs compact, low-power and accurate bidirectional current monitoring with fixed 50V/V gain. Its value comes from zero-drift accuracy, wide common-mode sensing, low quiescent current and the small SC70-6 package.

Circuit Function & Design Role

Bidirectional Current Sensing

Supports current measurement in both directions when the REF pin is biased correctly, making it suitable for charge and discharge current monitoring.

High-Side Measurement

Measures current on the supply side while keeping the load referenced to system ground.

Low-Side Measurement

Can be used near ground for simple current feedback, load-current measurement and protection circuits.

50V/V Gain Scaling

The A1 gain option provides moderate amplification for shunt-voltage signals while helping maintain output headroom.

Key Electrical & Package Information

Manufacturer	Texas Instruments
Part Number	INA199A1DCKR
Device Type	Bidirectional zero-drift current-shunt monitor
Gain Option	50V/V
Common-Mode Range	-0.3V to 26V
Supply Voltage Range	2.7V to 26V
Offset Voltage	±150µV max
Quiescent Current	100µA max
Package	DCK / 6-pin SC70
Operating Temperature	-40°C to +125°C
Product Status	Active

Design reminder: Current-sense accuracy depends on shunt resistor tolerance, Kelvin layout, REF pin stability, common-mode range, output swing and ADC reference accuracy.

Application Scenarios

Battery Chargers

Suitable for monitoring charge and discharge current in battery chargers, portable devices and battery-powered systems.

Power Management

Used to monitor supply current, load current and system power consumption in compact electronic systems.

Telecom Equipment

Supports current monitoring and protection functions in telecom modules, communication equipment and distributed power rails.

Overcurrent Protection

Provides a voltage output signal for current-limit, fault detection and closed-loop feedback circuits.

TomatoElec Quality & Supply Notes

As an in-stock independent distributor and electronic components supplier, TomatoElec supports INA199A1DCKR sourcing for engineering samples, production replenishment, urgent replacement and BOM purchasing. For current-sense amplifiers, correct gain option, package type and original sourcing are important because the device affects measurement accuracy and protection behavior.

Original component sourcing: support sourcing of original Texas Instruments current-sense amplifier ICs for customer BOM requirements.
Inventory support: help customers confirm available stock, package condition, date code and shipment schedule.
Gain option verification: confirm the A1 50V/V gain option before shipment, especially when comparing with INA199A2 or INA199A3 versions.
BOM matching: verify gain, common-mode range, supply voltage, package, REF pin usage and temperature requirements before approving any substitute.

Replacement & BOM Matching Guidance

INA199A1DCKR should not be replaced only by matching the current-sense amplifier category. Engineers should compare gain, zero-drift architecture, common-mode range, offset voltage, REF pin configuration, package, pinout and operating temperature range.

Selection tip: For customer BOM replacement, confirm whether the design requires the A1 50V/V gain version. A different gain option may change ADC scaling, current-limit thresholds and firmware calibration.

FAQ

What is INA199A1DCKR used for?

INA199A1DCKR is used for bidirectional current measurement, overcurrent protection, power monitoring, battery charging systems, telecom equipment and closed-loop feedback circuits.

What does A1 mean in INA199A1DCKR?

The A1 option indicates a fixed gain of 50V/V. This gain should match the shunt resistor value, ADC input range and current measurement target of the design.

Can INA199A1DCKR be used for high-side current sensing?

Yes. INA199A1DCKR supports high-side and low-side current sensing within its specified common-mode voltage range.

Can TomatoElec support INA199A1DCKR sourcing?

TomatoElec can support INA199A1DCKR inquiry, inventory confirmation, BOM sourcing and shipment coordination. Customers are recommended to confirm required quantity, gain option, package condition, date code preference and delivery schedule before ordering.

Final Selection Summary

INA199A1DCKR is a compact zero-drift current-sense amplifier for designs requiring bidirectional current measurement, 50V/V gain and a small SC70-6 package. Its main value is in battery charging, power management, telecom equipment, overcurrent protection and precision current monitoring.

TomatoElec recommendation: Use INA199A1DCKR when the BOM requires Texas Instruments zero-drift current-shunt monitor technology, A1 50V/V gain, low/high-side sensing and DCK / SC70-6 packaging. Before production or replacement, verify shunt resistor value, REF pin bias, common-mode range, output swing, PCB layout and measurement accuracy target.

INA199A1DCKR Характеристики

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Номер детали	INA199A1DCKR
Производитель	Texas Instruments
Серия	-
Корпус/корпус	6-TSSOP, SC-88, SOT-363
Упаковка	Tape & Reel (TR)
Состояние продукта	Active
Функция	Current Sense
Метод измерения	High/Low-Side
Точность	±1.5%
Напряжение - Вход	-0.3V ~ 26V
Ток - выход	-
Рабочая температура	-40°C ~ 125°C
Марка	-
Квалификация	-
Тип крепления	Surface Mount
Устройство поставщика Упаковка	SC-70-6

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