INA199A3DCKT

Product Overview

Category: Integrated Circuit (IC)

Use: The INA199A3DCKT is a high-side current shunt monitor IC that accurately measures the voltage drop across a current-sensing resistor. It is commonly used in applications where precise current monitoring is required, such as power management systems, battery chargers, motor control, and industrial automation.

Characteristics: - High accuracy current sensing - Wide common-mode voltage range - Low offset voltage and drift - Small package size for space-constrained designs - Low power consumption

Package: The INA199A3DCKT is available in a small SOT-23 package, which is ideal for compact circuit board designs.

Essence: The essence of the INA199A3DCKT lies in its ability to accurately measure current by monitoring the voltage drop across a shunt resistor.

Packaging/Quantity: The INA199A3DCKT is typically sold in reels or tubes containing multiple units, with each reel or tube containing a specific quantity of ICs.

Specifications

• Supply Voltage Range: 2.7V to 26V
• Common-Mode Voltage Range: -0.3V to V+ + 0.3V
• Input Offset Voltage: ±150µV (maximum)
• Gain Error: ±0.5% (maximum)
• Bandwidth: 500kHz (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The INA199A3DCKT has a total of six pins:

1. V+ (Positive Supply Voltage)
2. V- (Negative Supply Voltage/Ground)
3. OUT (Output Voltage)
4. REF (Reference Voltage)
5. IN+ (Positive Current Sense Input)
6. IN- (Negative Current Sense Input)

Functional Features

• High accuracy current sensing: The INA199A3DCKT provides precise measurement of current by monitoring the voltage drop across a shunt resistor.
• Wide common-mode voltage range: It can operate with a wide range of common-mode voltages, allowing for flexibility in various applications.
• Low offset voltage and drift: The IC has low offset voltage and drift, ensuring accurate measurements over time.
• Small package size: The compact SOT-23 package enables space-saving designs, making it suitable for applications with limited board space.
• Low power consumption: The INA199A3DCKT consumes minimal power, making it energy-efficient.

Advantages and Disadvantages

Advantages: - Accurate current sensing - Wide common-mode voltage range - Compact package size - Low power consumption

Disadvantages: - Limited maximum supply voltage range (up to 26V) - Requires an external shunt resistor for current sensing

Working Principles

The INA199A3DCKT operates based on the principle of measuring the voltage drop across a shunt resistor. It amplifies this voltage drop and provides an output voltage proportional to the current flowing through the shunt resistor. By accurately measuring this voltage, the IC enables precise current monitoring in various applications.

Detailed Application Field Plans

The INA199A3DCKT finds application in a wide range of fields, including:

1. Power management systems: It is used to monitor current in power supplies, DC-DC converters, and voltage regulators.
2. Battery chargers: The IC ensures accurate current measurement during charging processes, preventing overcharging or undercharging of batteries.
3. Motor control: It enables precise current monitoring in motor control circuits, ensuring optimal performance and protection against overload conditions.
4. Industrial automation: The INA199A3DCKT is utilized in industrial automation systems to monitor current in various machinery and equipment.

Detailed and Complete Alternative Models

1. INA199A2DCKR: Similar to the INA199A3DCKT, but with a different pin configuration (5-pin SOT-23 package).
2. INA199AIDGST: A surface-mount IC with similar functionality, but available in a different package (8-pin VSSOP).

These alternative models offer similar features and performance characteristics, providing flexibility for different design requirements.

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