• - 交流-直流(AC-DC)控制器和稳压器
• - 直流-直流(DC-DC)控制器、转换器和稳压器
• - 电压和电流管理
• - 通讯IC
• - 驱动器
• - 热管理

• - 时钟及数据分配
• - 标准逻辑

• - 放大器和比较器
• - 模拟开关
• - 数字电位计
• - 接口
• - EMI和RFI滤波器

• - EEPROM存储器
• - 非易失性只读存储器(NVRAM)
• - SRAM存储器

说明

The INA219 is a high-side current shunt and power monitor with an I²C interface. The INA219 monitors both shunt drop and supply voltage, with programmable conversion times and filtering. A programmable calibration value, combined with an internal multiplier, enables direct readouts in amperes. An additional multiplying register calculates power in watts. The I²C interface features 16 programmable addresses.

The INA219 is available in two grades: A and B. The B grade version has higher accuracy and higher precision specifications.

The INA219 senses across shunts on buses that can vary from 0V to 26V. The device uses a single +3V to +5.5V supply, drawing a maximum of 1mA of supply current. The INA219 operates from –40°C to +125°C.

特性

• SENSES BUS VOLTAGES FROM 0V TO +26V
• REPORTS CURRENT, VOLTAGE, AND POWER
• 16 PROGRAMMABLE ADDRESSES
• HIGH ACCURACY: 0.5% (Max) OVER TEMPERATURE (INA219B)
• FILTERING OPTIONS
• CALIBRATION REGISTERS
• SOT23-8 AND SO-8 PACKAGES
• APPLICATIONS
  • SERVERS
  • TELECOM EQUIPMENT
  • NOTEBOOK COMPUTERS
  • POWER MANAGEMENT
  • BATTERY CHARGERS
  • WELDING EQUIPMENT
  • POWER SUPPLIES
  • TEST EQUIPMENT

I²C is a trademark of NXP Semiconductors.
All other trademarks are the property of their respective owners.