INA381A1IDGST

Obsolete

Texas Instruments

IC CURRENT SENSE 1% 10VSSOP

INA381A1IDGST

Obsolete

Texas Instruments

IC CURRENT SENSE 1% 10VSSOP

Description Specifications Series Pricing CAD Documents

Description

General part information

INA381 Series

The INA381-Q1 includes both a 26-V common-mode, current-sensing amplifier and a high-speed comparator. This device detects overcurrent conditions by measuring the voltage developed across a current-shunt resistor and comparing that voltage to a user-defined threshold limit set by the comparator reference pin. The current-shunt monitor can measure differential voltage signals on common-mode voltages that vary from –0.2 V up to 26 V, independent of the supply voltage.

The open-drain alert output can be configured to operate in two modes: transparent or latched. In transparent mode, the output status follows the input state. In latched mode, the alert output is cleared only when the latch is reset. The standalone comparator large-signal alert response time is less than 2 µs, allowing for quick detection of overcurrent events. The total system overcurrent protection response time provided by the INA381-Q1 is less than 10 µs.

This device operates from a single 2.7-V to 5.5-V supply, drawing a maximum supply current of 350 µA. The device is specified over an operating temperature range of –40°C to +125°C, and is available in the 10-pin VSSOP package.

Technical Specifications

Parameters and characteristics for this part

Specification	INA381A1IDGST

Accuracy	1 %
Function	Current Sense
Mounting Type	Surface Mount
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Package Length	0.118 in
Package Name	10-VSSOP, 10-TFSOP, 10-MSOP
Package Width	3 mm
Sensing Method	High/Low-Side
Voltage - Input (Maximum)	26 V
Voltage - Input (Minimum)	0 V

INA381 Series

26-V, 350-kHz current sense amplifier with integrated over-current comparator

Part	Accuracy	Operating Temperature (Max)	Operating Temperature (Min)	Package Width	Package Name	Package Length	Voltage - Input (Maximum)	Package / Case	Sensing Method	Mounting Type	Function	Grade	Qualification
Texas Instruments INA381A3IDSGR	1 %	125 °C	-40 °C	2 mm	8-WSON	2 mm	26 V	8-WFDFN Exposed Pad	High/Low-Side	Surface Mount	Current Sense
Texas Instruments INA381A2IDGST	1 %	125 °C	-40 °C	3 mm	10-MSOP 10-TFSOP 10-VSSOP	0.118 in	26 V		High/Low-Side	Surface Mount	Current Sense
Texas Instruments INA381A3IDGST	1 %	125 °C	-40 °C	3 mm	10-MSOP 10-TFSOP 10-VSSOP	0.118 in	26 V		High/Low-Side	Surface Mount	Current Sense
Texas Instruments INA381A1IDGST	1 %	125 °C	-40 °C	3 mm	10-MSOP 10-TFSOP 10-VSSOP	0.118 in	26 V		High/Low-Side	Surface Mount	Current Sense
Texas Instruments INA381A4QDGSRQ1	1 %	125 °C	-40 °C	3 mm	10-MSOP 10-TFSOP 10-VSSOP	0.118 in	26 V		High/Low-Side	Surface Mount	Current Sense	Automotive	AEC-Q100
Texas Instruments INA381A3IDGSR	1 %	125 °C	-40 °C	3 mm	10-MSOP 10-TFSOP 10-VSSOP	0.118 in	26 V		High/Low-Side	Surface Mount	Current Sense
Texas Instruments INA381A1IDSGR	1 %	125 °C	-40 °C	2 mm	8-WSON	2 mm	26 V	8-WFDFN Exposed Pad	High/Low-Side	Surface Mount	Current Sense
Texas Instruments INA381A4IDGSR	1 %	125 °C	-40 °C	3 mm	10-MSOP 10-TFSOP 10-VSSOP	0.118 in	26 V		High/Low-Side	Surface Mount	Current Sense
Texas Instruments INA381A1IDSGT	1 %	125 °C	-40 °C	2 mm	8-WSON	2 mm	26 V	8-WFDFN Exposed Pad	High/Low-Side	Surface Mount	Current Sense
Texas Instruments INA381A1QDGSRQ1	1 %	125 °C	-40 °C	3 mm	10-MSOP 10-TFSOP 10-VSSOP	0.118 in	26 V		High/Low-Side	Surface Mount	Current Sense	Automotive	AEC-Q100

Pricing

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