Overview
The INA201AIDR, part of the INA200 series from Texas Instruments, is a high-side current-shunt monitor designed to measure voltage drops across shunts in a variety of applications. This device is particularly useful in systems where high accuracy and wide common-mode range are required. The INA201AIDR operates with a gain of 50 V/V, providing a scalable output voltage based on the sensed current. It features an integrated open-drain comparator with a 0.6-V internal reference, which can be configured for various trip points using external dividers. The device is available in compact SOIC-8 and VSSOP-8 packages, making it suitable for space-constrained designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Gain | 50 | V/V |
| Common-Mode Range | -16 to 80 | V |
| Bandwidth | 300 kHz | |
| Quiescent Current | 1800 | μA |
| Supply Voltage Range | 2.7 to 18 | V |
| Operating Temperature Range | -40 to 125 | °C |
| Output Impedance | 1.5 | Ω |
| Maximum Capacitive Load | 10 nF | |
| Comparator Response Time | 1.3 μs | |
| Comparator Reset Threshold | 1.1 V |
Key Features
- Complete Current Sense Solution: The INA201AIDR provides a comprehensive solution for current sensing, including voltage output and an integrated comparator.
- High Accuracy: The device offers high accuracy with a maximum error of 3.5% over temperature.
- Wide Common-Mode Range: It can sense drops across shunts at common-mode voltages from -16 V to 80 V.
- Internal Reference and Comparator: Features a 0.6-V internal voltage reference and an open-drain comparator with latching capability.
- Compact Packages: Available in SOIC-8 and VSSOP-8 packages, suitable for space-constrained designs.
- Wide Supply Voltage Range: Operates from a single 2.7-V to 18-V supply.
Applications
- Notebook Computers: Ideal for monitoring battery and power management systems.
- Cell Phones: Used in battery management and power monitoring.
- Telecom Equipment: Suitable for current monitoring in telecommunications hardware.
- Automotive Systems: Applied in various automotive applications requiring high-side current sensing.
- Power Management: Utilized in power supplies, battery chargers, and welding equipment.
Q & A
- What is the gain of the INA201AIDR?
The gain of the INA201AIDR is 50 V/V.
- What is the common-mode range of the INA201AIDR?
The common-mode range is from -16 V to 80 V.
- What is the bandwidth of the INA201AIDR?
The bandwidth is 300 kHz.
- What is the quiescent current of the INA201AIDR?
The quiescent current is up to 1800 μA.
- What is the supply voltage range for the INA201AIDR?
The supply voltage range is from 2.7 V to 18 V.
- What are the package options for the INA201AIDR?
The device is available in SOIC-8 and VSSOP-8 packages.
- How does the integrated comparator work?
The integrated comparator has a 0.6-V internal reference and includes a latching capability that can be reset via the RESET pin.
- What is the operating temperature range of the INA201AIDR?
The operating temperature range is from -40°C to 125°C.
- What is the maximum capacitive load for the INA201AIDR?
The maximum capacitive load is 10 nF.
- How fast is the comparator response time?
The comparator response time is typically 1.3 μs.
