INA3221AIRGVT datasheet(37/46 Pages) TI1

Part #	INA3221AIRGVT

Description	Triple-Channel, High-Side Measurement, Shunt and Bus Voltage Monitor with I2C- and SMBUS-Compatible Interface

Download	46 Pages

Scroll/Zoom	100%

Manufacturer	TI1 [Texas Instruments]

Direct Link	http://www.ti.com

Logo

37 / 46 page

Time (200 Ps/div)

CRITICAL ALERT

INPUT

LIMIT

Time (100 Ps/div)

CRITICAL ALERT

INPUT

LIMIT

37

INA3221

www.ti.com

SBOS576B – MAY 2012 – REVISED MARCH 2016

Product Folder Links: INA3221

Submit Documentation Feedback

Typical Application (continued)

9.2.1 Design Requirements

For this design example, use the input parameters shown in Table 25. All other register settings are default.

Table 25. Design Parameters

DESIGN PARAMETER

EXAMPLE VALUE

Supply voltage, VS

5 V

Pull-up resistors

10 k

Ω

Input range

–163.84 to +163.8

Enabled channel

CH1

Operating mode

Shunt voltage, continuous

Average setting

1

Critical alert limit

80 mV

Critical Alert Limit register setting

7D0h

9.2.2 Detailed Design Procedure

This design shows two shunt voltage conversion times in order to demonstrate the difference in the alert

response times. This design generates a critical-alert response when the input voltage exceeds 80 mV on

channel 1. See Table 25 for all design parameters.

For the first example the shunt voltage conversion time is set to 1.1 ms. When the input signal exceeds 80 mV,

the Critical alert pin pulls low after the conversion cycle completes, indicating an overcurrent condition, as shown

in Figure 53.

For the second example, the conversion time is set to 588 µs, and the response is shown in Figure 54.

9.2.3 Application Curves

Figure 53 shows the Critical alert pin response to a shunt voltage overlimit of 80 mV for a conversion time of 1.1

ms. Figure 54 shows the response for the same limit, but with the conversion time reduced to 588 µs.

Configuration register = 4125h,

conversion time = 588 µs

Figure 53. Critical Alert Response for 1.1-ms Conversion

Time

Configuration register = 40DDh,

conversion time = 588 µs

Figure 54. Critical Alert Response for 588-µs Conversion

Time

Similar Part No. - INA3221AIRGVT

Manufacturer	Part #	Datasheet	Description
Texas Instruments	INA3221AIRGVT	552Kb / 36P	[Old version datasheet] Triple-Channel, High-Side Measurement, Shunt and Bus Voltage Monitor

More results

Similar Description - INA3221AIRGVT

Manufacturer	Part #	Datasheet	Description
Texas Instruments	INA3221	1,015Kb / 40P	[Old version datasheet] Triple-Channel, High-Side Measurement, Shunt and Bus Voltage Monitor with I2C??Interface
	INA3221	552Kb / 36P	[Old version datasheet] Triple-Channel, High-Side Measurement, Shunt and Bus Voltage Monitor
	INA233	681Kb / 48P	[Old version datasheet] High-Side or Low-Side Measurement, Bidirectional Current and Power Monitor With I2C-, SMBus-, and PMBus-Compatible Interface
Burr-Brown (TI)	INA200	285Kb / 19P	High-Side Measurement Current-Shunt Monitor with Comparator and Reference
Burr-Brown (TI)	INA200	345Kb / 22P	High-Side Measurement Current-Shunt Monitor with Comparator and Reference
ON Semiconductor	NCP45491	153Kb / 10P	26V, 4-Channel Voltage Bus and 4-Channel High-Side Current Shunt Monitor August, 2018 ??Rev. 2
ON Semiconductor	NCP45492	221Kb / 12P	26V, 4-Channel Voltage Bus and 4-Channel High-Side Current Shunt Monitor June, 2020 ??Rev. 1
Texas Instruments	INA139	200Kb / 11P	[Old version datasheet] High-Side Measurement CURRENT SHUNT MONITOR
	INA139-Q1	1Mb / 16P	[Old version datasheet] HIGH-SIDE MEASUREMENT CURRENT SHUNT MONITOR
	INA139NA	408Kb / 15P	[Old version datasheet] High-Side Measurement CURRENT SHUNT MONITOR

More results

INA3221AIRGVT Datasheet(PDF) 37 Page - Texas Instruments

INA3221AIRGVT Datasheet(HTML) 37 Page - Texas Instruments

Similar Part No. - INA3221AIRGVT

Similar Description - INA3221AIRGVT

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46

Datasheet Download

Link URL