Texas Instruments INA209
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. The INA209 features two separate, onboard watchdog capabilities: a warning comparator and an over-limit comparator.| Part No. | INA209 |
|---|---|
| Datasheet | INA209 Download |
| Manufacturer |  Texas Instruments |
| Description | Bi-Directional Current/Power Monitor |
| Buy | Stock & Price |
FEATURES
1●23 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 VIN+ VIN- VS (Supply Voltage) Critical DAC + Critical DAC - CMP CMP Filter INA209 Critical Watchdog Overlimit Warning
DESCRIPTION
A programmable calibration value, combined with an internal multiplier, enables direct readouts in amperes. An additional multiplying register calculates power in watts. 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.
