INA260 Texas instruments

INA260

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INA260

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Описание

The INA260 is a digital-output, current, power, and voltage monitor with an I2C and SMBus™-compatible interface with an integrated precision shunt resistor. It enables high-accuracy current and power measurements and over-current detection at common-mode voltages that can vary from 0 V to 36 V, independent of the supply voltage. The device is a bidirectional, low- or high-side, current-shunt monitor that measures current flowing through the internal current-sensing resistor. The integration of the precision current-sensing resistor provides calibration-equivalent measurement accuracy with ultra-low temperature drift performance and ensures that an optimized Kelvin layout for the sensing resistor is always obtained. The INA260 features up to 16 programmable addresses on the I2C-compatible interface. The digital interface allows programmable alert thresholds, analog-to-digital converter (ADC) conversion times, and averaging. To facilitate ease of use, an internal multiplier enables direct readouts of current in amperes and power in watts. The device operates from a single 2.7-V to 5.5-V supply, drawing 310 µA (typical) of supply current. The INA260 is specified over the operating temperature range between –40°C and +125°C and is available in the 16-pin TSSOP package.

Precision Integrated Shunt Resistor:
- Current Sense Resistance: 2 mΩ
- Tolerance Equivalent to 0.1%
- 15-A Continuous From –40°C to +85°C
- 10 ppm/°C Temperature Coefficient (0°C to +125°C )
Senses Bus Voltages From 0 V to 36 V
High-Side or Low-Side Sensing
Reports Current, Voltage, and Power
High Accuracy:
- 0.15% System Gain Error (Maximum)
- 5-mA Offset (Maximum)
Configurable Averaging Options
16 Programmable Addresses
Operates From a 2.7-V to 5.5-V Power Supply
16-Pin, TSSOP Package

Common-mode voltage (max) (V)	36
Common-mode voltage (min) (V)	0
Input offset drift (±) (typ) (µV/°C)	1
CMRR (min) (dB)	126
Supply voltage (max) (V)	5.5
Supply voltage (min) (V)	2.7
Iq (max) (mA)	0.42
Digital interface	I2C, SMBus
Resolution (Bits)	16
Features	Alert Function, Bi-directional, Integrated Power Monitor, Integrated Shunt, Low-side Capable, Ultra precise
Rating	Catalog
Operating temperature range (°C)	-40 to 125