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INA209-26V、双向、低侧/高侧、I2C 输出电流/功率监控器和高速比较器
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INA209 - 26V、双向、低侧/高侧、I2C 输出电流/功率监控器和高速比较器

INA209是TI公司(德州仪器)的一款电流分流比较器产品,INA209是26V、双向、低侧/高侧、I2C 输出电流/功率监控器和高速比较器,本站介绍了INA209的产品说明、应用、特性等,并给出了与INA209相关的TI元器件型号供参考.

INA209 - High-Side Measurement, Bi-Directional Current/Power Monitor with I2C Interface - TI德州仪器(Texas Instruments)

产品描述

The INA209 is a high-side current shunt and power monitor with an I2C interface. The INA209 monitors both shunt drop and shunt bus voltage. A programmable calibration value, combined with an internal multiplier, enables direct readouts in amperes. An additional multiplying register calculates power in watts. The INA209 features two separate, onboard watchdog capabilities: a warning comparator and an over-limit comparator. The warning comparator is useful for monitoring lower warning limits and incorporates a user-defined delay. The over-limit comparator assists with monitoring upper limits that could require immediate system shutdown.

The INA209 also includes an analog comparator and a programmable digital-to-analog converter (DAC) that combine to provide the fastest possible responses to current overload conditions.

The INA209 can be used together with hot swap controllers that already use a current sense resistor. The INA209 full-scale range can be selected to be either within the hot-swap controller sense limits, or wide enough to include them.

The INA209 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 1.5mA of supply current. It is specified for operation from -25°C to +85°C.

产品特性

  • SENSES BUS VOLTAGES FROM 0V TO +26V
  • REPORTS CURRENT, VOLTAGE, AND POWER; STORES PEAKS
  • TRIPLE WATCHDOG LIMITS:
    • Lower Warning with Delay
    • Upper Over-limit, No Delay
    • Fast Analog Critical
  • HIGH ACCURACY: 1% MAX OVER TEMP
  • APPLICATIONS
    • SERVERS
    • TELECOM EQUIPMENT
    • AUTOMOTIVE
    • 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.

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