TI INA226 600V单向太阳能智能汇流箱参考设计

TI工司的INA226是具有I2C™或SMBUS兼容接口的电流和功率监测器.总线电压检测从0V到36V,工作电压2.7-V到5.5-V,耗电330 µA,高边或低边检测,主要用在服务器,通信设备,计算机,电源和电源管理,电池充电器和测试设备.本文介绍了INA226主要特性,框图和应用电路,以及600V单向电压/电流/功率监测太阳能智能汇流箱参考设计TIDA-00639主要特性,框图,电路图,材料清单和PCB设计图.

The INA226 is a current shunt and power monitor with an I2C™- or SMBUS-compatible interface. The device monitors both a shunt voltage drop and bus supply voltage. Programmable calibration value, conversion times, and averaging, combined with an internal multiplier, enable direct readouts of current in amperes and power in watts.

The INA226 senses current on common-mode bus voltages that can vary from 0 V to 36 V, independent of the supply voltage. The device operates from a single 2.7-V to 5.5-V supply, drawing a typical of 330 µA of supply current. The device is specified over the operating temperature range between –40°C and 125xC2°C and features up to 16 programmable addresses on the I2C-compatible interface.

INA226主要特性:

Senses Bus Voltages From 0 V to 36 V

High-Side or Low-Side Sensing

Reports Current, Voltage, and Power

High Accuracy:

0.1% Gain Error (Max)

10 µV Offset (Max)

Configurable Averaging Options

16 Programmable Addresses

Operates from 2.7-V to 5.5-V Power Supply

10-Pin, DGS (VSSOP) Package

INA226应用:

• Servers

• Telecom Equipment

• Computing

• Power Management

• Battery Chargers

• Power Supplies

• Test Equipment

图1.INA226功能框图

图2.INA226应用电路图

图3.INA226典型电路配置图

600V单向电压/电流/功率监测太阳能智能汇流箱参考设计TIDA-00639...