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INA231AIYFFR Datasheet(PDF) 1 Page - Texas Instruments |
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INA231AIYFFR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 32 page ´ Power Register Current Register I C 2 Interface Voltage Register INA231 GND BUS ADC V I A0 A1 ALERT SDA SCL C 0.1 F BYPASS m High- Side Shunt Low- Side Shunt Load Alert Register V (Supply Voltage) S Power Supply (0 V to 28 V) INA231 www.ti.com SBOS644 – FEBRUARY 2013 High- or Low-Side Measurement, Bidirectional CURRENT/POWER MONITOR with 1.8-V I2C™ Interface Check for Samples: INA231 1 FEATURES DESCRIPTION The INA231 is a current-shunt and power monitor 23 • Bus Voltage Sensing From 0 V to +28 V with a 1.8-V compliant I2C interface that features 16 • High- or Low-Side Sensing programmable addresses. The INA231 monitors both • Current, Voltage, and Power Reporting shunt voltage drops and bus supply voltage. Programmable calibration value, conversion times, • High Accuracy: and averaging combined with an internal multiplier – 0.5% Gain Error (Max) enable direct readouts of current in amperes and – 50- μV Offset (Max) power in watts. • Configurable Averaging Options The INA231 senses current on buses that vary from 0 • Programmable Alert Threshold V to +28 V, with the device powered from a single +2.7-V to +5.5-V supply, drawing 330 μA (typical) of • 1.8-V I2C Compliant supply current. The INA231 is specified over the • Power-Supply Operation: 2.7 V to 5.5 V operating temperature range of –40°C to +125°C. • Package: 1.68-mm × 1.43-mm, WCSP-12 RELATED PRODUCTS APPLICATIONS DESCRIPTION DEVICE Current and power monitor with watchdog, peak- • Smartphones INA209 hold, and fast comparator functions • Tablets INA210, INA211, Zerø-drift, low-cost, analog current shunt monitor INA212, INA213, • Servers series in small package INA214 • Computers Zerø-drift, bidirectional current power monitor with INA219 two-wire interface • Power Management High or Low-side, bidirectional current and power • Battery Chargers monitor with two-wire interface and programmable INA226 alert • Power Supplies • Test Equipment HIGH-OR LOW-SIDE SENSING 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 I2C is a trademark of NXP Semiconductors. 3 All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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