INA209 Monitor Datasheet

INA209 Datasheet, PDF, Equivalent


Part Number

INA209

Description

Bi-Directional Current/Power Monitor

Manufacture

etcTI

Total Page 30 Pages
Datasheet
Download INA209 Datasheet


INA209
INA209INA209
www.ti.com ......................................................................................................................................................... SBOS403B – JUNE 2007 – REVISED MARCH 2009
High-Side Measurement, Bi-Directional Current/Power Monitor
with I2C™ Interface
FEATURES
1
23 SENSES BUS VOLTAGES FROM 0V TO +26V
REPORTS CURRENT, VOLTAGE, AND
POWER; STORES PEAKS
TRIPLE WATCHDOG LIMITS:
– Lower Warning with Delay
– Upper Over-limit, No Delay
– Fast Analog Critical
HIGH ACCURACY: 1% MAX OVER TEMP
APPLICATIONS
SERVERS
TELECOM EQUIPMENT
AUTOMOTIVE
POWER MANAGEMENT
BATTERY CHARGERS
WELDING EQUIPMENT
POWER SUPPLIES
TEST EQUIPMENT
VIN+ VIN-
VS
(Supply Voltage)
Critical
DAC +
Critical
DAC -
CMP
CMP
Filter
INA209
Critical
Watchdog
Overlimit
Warning
DESCRIPTION
The INA209 is a high-side current shunt and power
monitor with an I2C interface. The INA209 monitors
both shunt drop and shunt bus voltage. A
programmable calibration value, combined with an
internal multiplier, enables direct readouts in
amperes. An additional multiplying register calculates
power in watts. The INA209 features two separate,
onboard watchdog capabilities: a warning comparator
and an over-limit comparator. The warning
comparator is useful for monitoring lower warning
limits and incorporates a user-defined delay. The
over-limit comparator assists with monitoring upper
limits that could require immediate system shutdown.
The INA209 also includes an analog comparator and
a programmable digital-to-analog converter (DAC)
that combine to provide the fastest possible
responses to current overload conditions.
The INA209 can be used together with hot swap
controllers that already use a current sense resistor.
The INA209 full-scale range can be selected to be
either within the hot-swap controller sense limits, or
wide enough to include them.
The INA209 senses across shunts on buses that can
vary from 0V to 26V. The device uses a single +3V to
+5.5V supply, drawing a maximum of 1.5mA of
supply current. It is specified for operation from
–25°C to +85°C.
GND
ADC
´ Power Register
Current Register
Voltage Register
I2C
Interface
Convert
GPIO
Alert
Data
CLK
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.
I2C is a trademark of NXP Semiconductors.
2
All other trademarks are the property of their respective owners.
3
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2007–2009, Texas Instruments Incorporated

INA209
INA209
SBOS403B – JUNE 2007 – REVISED MARCH 2009 ......................................................................................................................................................... www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
ORDERING INFORMATION(1)
PRODUCT
INA209
PACKAGE-LEAD
TSSOP-16
PACKAGE DESIGNATOR
PW
PACKAGE MARKING
INA209A
(1) For the most current package and ordering information see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
ABSOLUTE MAXIMUM RATINGS(1)
Over operating free-air temperature range (unless otherwise noted).
Supply Voltage, VS
Analog Inputs,
Differential (VIN+) – (VIN–)(2)
VIN+, VIN–
Common-Mode
Open-Drain Digital Outputs
GPIO, Convert Pins
Input Current Into Any Pin
Open-Drain Digital Output Current
Operating Temperature
Storage Temperature
Junction Temperature
Human Body Model
ESD Ratings
Charged-Device Model
Machine Model (MM)
INA209
6
–26 to +26
–0.3 to +26
GND – 0.3 to +6
GND – 0.3 to VS + 0.3
5
10
–40 to +125
–65 to +150
+150
2000
1000
150
UNIT
V
V
V
V
V
mA
mA
°C
°C
°C
V
V
V
(1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may
degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond
those specified is not implied.
(2) VIN+ and VIN– may have a differential voltage of –26V to +26V; however, the voltage at these pins must not exceed the range –0.3V to
+26V.
2 Submit Documentation Feedback
Product Folder Link(s): INA209
Copyright © 2007–2009, Texas Instruments Incorporated


Features INA209INA209 www.ti.com ............... ....................................... ....................................... ....................................... ..................... SBOS403B – JUNE 2007 – REVISED MARCH 2009 High-Side Measurement, Bi-Directional Current/Pow er Monitor with I2C™ Interface FEATU RES 1 •23 SENSES BUS VOLTAGES FROM 0V TO +26V • REPORTS CURRENT, VOLTAGE, AND POWER; STORES PEAKS • TRIPLE WATC HDOG LIMITS: – Lower Warning with Del ay – Upper Over-limit, No Delay – F ast Analog Critical • HIGH ACCURACY: 1% MAX OVER TEMP APPLICATIONS • SERV ERS • TELECOM EQUIPMENT • AUTOMOTIV E • POWER MANAGEMENT • BATTERY CHAR GERS • WELDING EQUIPMENT • POWER SU PPLIES • TEST EQUIPMENT VIN+ VIN- V S (Supply Voltage) Critical DAC + Crit ical DAC - CMP CMP Filter INA209 Cri tical Watchdog Overlimit Warning DES CRIPTION The INA209 is a high-side curr ent shunt and power monitor with an I2C interface. The INA209 monitors both shunt drop and shunt bus voltage. A programmable calibration v.
Keywords INA209, datasheet, pdf, etcTI, Bi-Directional, Current/Power, Monitor, NA209, A209, 209, INA20, INA2, INA, Equivalent, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute




@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)