High-Side Measurement, Bi-Directional Current/Power Monitor With I2C Interface

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 limitsthat could require immediate system shutdown. The INA209 also includes an Analog-to-digital converter (ADC) 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 -25C to +85C. By Texas Instruments
Part Manufacturer Description Datasheet Samples
INA209AIPWRG4 Texas Instruments 26-V, Bi-Directional, Low-/High-Side, I2C Out Current/Power Monitor & High-Speed Comparator 16-TSSOP -40 to 125
INA209AIPW Texas Instruments 26-V, Bi-Directional, Low-/High-Side, I2C Out Current/Power Monitor & High-Speed Comparator 16-TSSOP -40 to 125
INA209AIPWG4 Texas Instruments 26-V, Bi-Directional, Low-/High-Side, I2C Out Current/Power Monitor & High-Speed Comparator 16-TSSOP -40 to 125
INA209AIPWR Texas Instruments 26-V, Bi-Directional, Low-/High-Side, I2C Out Current/Power Monitor & High-Speed Comparator 16-TSSOP -40 to 125
INA209 's PackagesINA209 's pdf datasheet
INA209AIPW TSSOP
INA209AIPWG4 TSSOP
INA209AIPWR TSSOP
INA209AIPWRG4 TSSOP




INA209 Pinout, Pinouts
INA209 pinout,Pin out
This is one package pinout of INA209,If you need more pinouts please download INA209's pdf datasheet.

INA209 Application circuits
INA209 circuits
This is one application circuit of INA209,If you need more circuits,please download INA209's pdf datasheet.


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