SBOU251 October   2020 INA280

PRODUCTION DATA  

  1.   Trademarks
  2. 1General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  3. 2Overview
    1. 2.1 EVM Kit Contents
    2. 2.2 Related Documentation From Texas Instruments
  4. 3Hardware
    1. 3.1 Features
  5. 4Operation
    1. 4.1 Quick Start Setup
    2. 4.2 Measurements
  6. 5EVM Components
    1. 5.1 R2_An, R3_An, R4_An, C2_An, C3_An
    2. 5.2 C1_An
    3. 5.3 R1_An
    4. 5.4 U1_An (INA280)
  7. 6Schematic, PCB Layout, and Bill of Materials
    1. 6.1 Schematics
    2. 6.2 PCB Layout
    3. 6.3 Bill of Materials

2 Overview

The INA280-Q1 device is a voltage-output, high-side current sense amplifier with an enable pin in a very-small SC-70 (5) package. As shown in Table 2-1, the INA280 has gains that range from 20 V/V to 500 V/V, depending on the gain option that is selected. The voltage developed across the device inputs is amplified by the corresponding gain of the specific device, and is presented at the output pin. The device can accurately sense voltage drops across shunts at 2.7-V to +110-V common-mode voltages, dependent of supply voltages. The device survives common-mode voltages from –20 V to +120 V. The device operates with supply voltages between 2.7 V and 20 V, and draws a typical of 350 µA at room temperature.

Table 2-1 INA280 Gain Option Summary
Product(1)Gain (V/V)
INA280A120
INA280A250
INA280A3100
INA280A4200
INA280A5500
(1) INA280B-Q1 is a preview device.