Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

INA3221AIRGV Datasheet(PDF) 18 Page - Texas Instruments

Part # INA3221AIRGV
Description  Triple-Channel, High-Side Measurement, Shunt and Bus Voltage Monitor
Download  36 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

INA3221AIRGV Datasheet(HTML) 18 Page - Texas Instruments

Back Button INA3221AIRGV Datasheet HTML 14Page - Texas Instruments INA3221AIRGV Datasheet HTML 15Page - Texas Instruments INA3221AIRGV Datasheet HTML 16Page - Texas Instruments INA3221AIRGV Datasheet HTML 17Page - Texas Instruments INA3221AIRGV Datasheet HTML 18Page - Texas Instruments INA3221AIRGV Datasheet HTML 19Page - Texas Instruments INA3221AIRGV Datasheet HTML 20Page - Texas Instruments INA3221AIRGV Datasheet HTML 21Page - Texas Instruments INA3221AIRGV Datasheet HTML 22Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 18 / 36 page
background image
INA3221
SBOS576 – MAY 2012
www.ti.com
Overload conditions are another consideration for the INA3221 inputs. The INA3221 inputs are specified to
tolerate 26 V across the inputs. A large differential scenario might be a short to ground on the load side of the
shunt. This type of event can result in full power-supply voltage across the shunt (as long as the power supply or
energy storage capacitors can support it). Keep in mind that removing a short to ground can result in inductive
kickbacks that can exceed the 26-V differential and common-mode rating of the INA3221. Inductive kickback
voltages are best controlled by zener-type transient-absorbing devices (commonly called transzorbs) combined
with sufficient energy storage capacitance.
In applications that do not have large energy storage electrolytics on one or both sides of the shunt, an input
overstress condition may result from an excessive dV/dt of the voltage applied to the input. A hard physical short
is the most likely cause of this event, particularly in applications without large electrolytics present. This problem
occurs because an excessive dV/dt can activate the INA3221 ESD protection in systems where large currents
are available. Testing has demonstrated that the addition of 10-
Ω resistors in series with each INA3221 input
sufficiently protects the inputs against this dV/dt failure up to the 26-V device rating. Selecting these resistors in
the range noted has minimal effect on accuracy.
DEFAULT INA3221 SETTINGS
The default register power-up states are listed in the Register Details section. These registers are volatile, and if
programmed to a value other than the default values shown in Table 1, they must be reprogrammed every time
the device powers up.
Software Reset
The INA3321 features a software reset that can reinitialize the device and register settings to the default power-
up values without having to cycle power to the device. Bit 15 (RESET) of the Configuration Register can be used
to perform this software reset. Setting this bit reinitializes all registers and settings to the default power state with
the exception of the Power Valid output state.
If a software reset is issued, the INA3221 holds the output of the Power Valid pin until the Power Valid detection
sequence completes. The Power Valid Upper and Lower limit registers default to the default state when the
software reset has been issued so any reprogrammed limit registers are reset, thus resulting in the original
Power Valid thresholds validating the Power Valid conditions. This architecture ensures that circuitry connected
to the Power Valid output is not interrupted during a software reset event.
18
Submit Documentation Feedback
Copyright © 2012, Texas Instruments Incorporated
Product Folder Link(s): INA3221


Similar Part No. - INA3221AIRGV

ManufacturerPart #DatasheetDescription
logo
Texas Instruments
INA3221AIRGVR TI1-INA3221AIRGVR Datasheet
1Mb / 46P
[Old version datasheet]   Triple-Channel, High-Side Measurement, Shunt and Bus Voltage Monitor with I2C- and SMBUS-Compatible Interface
INA3221AIRGVT TI1-INA3221AIRGVT Datasheet
1Mb / 46P
[Old version datasheet]   Triple-Channel, High-Side Measurement, Shunt and Bus Voltage Monitor with I2C- and SMBUS-Compatible Interface
More results

Similar Description - INA3221AIRGV

ManufacturerPart #DatasheetDescription
logo
Texas Instruments
INA3221 TI-INA3221_15 Datasheet
1,015Kb / 40P
[Old version datasheet]   Triple-Channel, High-Side Measurement, Shunt and Bus Voltage Monitor with I2C??Interface
INA3221 TI1-INA3221_17 Datasheet
1Mb / 46P
[Old version datasheet]   Triple-Channel, High-Side Measurement, Shunt and Bus Voltage Monitor with I2C- and SMBUS-Compatible Interface
INA139 TI-INA139 Datasheet
200Kb / 11P
[Old version datasheet]   High-Side Measurement CURRENT SHUNT MONITOR
INA139-Q1 TI-INA139-Q1_15 Datasheet
1Mb / 16P
[Old version datasheet]   HIGH-SIDE MEASUREMENT CURRENT SHUNT MONITOR
INA139NA TI-INA139NA Datasheet
408Kb / 15P
[Old version datasheet]   High-Side Measurement CURRENT SHUNT MONITOR
INA138NA250G4 TI1-INA138NA250G4 Datasheet
422Kb / 15P
[Old version datasheet]   High-Side Measurement CURRENT SHUNT MONITOR
INA138-Q1 TI1-INA138-Q1 Datasheet
1Mb / 19P
[Old version datasheet]   HIGH-SIDE MEASUREMENT CURRENT SHUNT MONITOR
INA139 TI1-INA139_17 Datasheet
950Kb / 25P
[Old version datasheet]   High-Side Measurement Current Shunt Monitor
logo
Burr-Brown (TI)
INA138 BURR-BROWN-INA138 Datasheet
69Kb / 7P
   High-Side Measurement CURRENT SHUNT MONITOR
logo
Texas Instruments
INA138 TI1-INA138_14 Datasheet
1Mb / 27P
[Old version datasheet]   High-Side Measurement Current Shunt Monitor
More results


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


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com