or SMBUS-compatible interface. The device monitors
both a shunt voltage drop and bus supply voltage.
The TPA626 common mode input voltage can vary
from 0V to 36V.
The TPA626 features up to 16 programmable
addresses on the I
2
C-compatible interface.
Operates from 2.7-V to 5.5-V Power Supply
10-Pin, MSOP Package
Applications
Power management
Servers
Telecom Equipment
Computing
Test Equipment
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Rev.A.02
TPA626
Bi-Directional Current and Power Monitor
Function block or application schematic
Power Supply(0V to 36V)
C
BYPASS
0.1μF
VBUS
High Side
Shunt
VS(Supply Voltage)
SDA
SCL
Load
V
IN+
Low Side
Shunt
V
Current Register
ADC
V
IN-
I
Voltage Register
I
2
C or SMBus
Compatible
Interface
Power Register
Alert
A0
Alert Register
A1
GND
Figure 1.
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Rev.A.02
TPA626
Bi-Directional Current and Power Monitor
Table of Contents
Features ........................................................................................................................................................................... 1
Function block or application schematic ..................................................................................................................... 2
Table of Contents ............................................................................................................................................................ 3
Pin Configuration and Functions .................................................................................................................................. 4
Order Information ............................................................................................................................................................ 4
Absolute Maximum Ratings ........................................................................................................................................... 5
Thermal Information ....................................................................................................................................................... 5
Tape And Reel Information ........................................................................................................................................... 16
Revision History ............................................................................................................................................................ 18
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3 / 18
Rev.A.02
TPA626
Bi-Directional Current and Power Monitor
Pin Configuration and Functions
MSOP10
A1
1
A0
2
Alert
3
SDA
4
SCL
5
10
IN+
9
IN-
8
VBUS
7
GND
6
VS
Pin Functions
PIN
NAME
A0
A1
Alert
GND
IN+
IN–
SCL
SDA
VBUS
VS
NO.
2
1
3
7
10
9
5
4
8
6
I/O
Digital input
Digital input
Digital output
Analog
Analog input
Analog input
Digital input
Digital I/O
Analog input
Analog
DESCRIPTION
Address pin. Connect to GND, SCL, SDA, or VS.
Address pin. Connect to GND, SCL, SDA, or VS.
Multi-functional alert, open-drain output.
Ground.
Connect to supply side of shunt resistor.
Connect to load side of shunt resistor.
Serial bus clock line, open-drain input.
Serial bus data line, open-drain input/output.
Bus voltage input.
Power supply, 2.7 V to 5.5 V.
Order Information
Model Name
Order Number
Package
MSL Level
Transport Media, Quantity
Marking
Information
TPA626
TPA626-VR
MSOP10
1
Tape and Reel, 3000
TPA626
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Rev.A.02
TPA626
Bi-Directional Current and Power Monitor
Absolute Maximum Ratings
Cover operating free-air temperature range (unless otherwise noted)
(1)
MIN
V
VS
Analog Inputs,
IN+, IN–
V
VBUS
V
SDA
V
SCL
I
IN
I
OUT
T
J
T
stg
(1)
(2)
Input current into any pin
Open-drain digital output current
Junction temperature
Storage temperature range
–65
Supply voltage
Differential (V
IN+
– V
IN-
)
(2)
Common-Mode (V
IN+
+ V
IN-
) / 2
–40
–0.3
–0.3
GND – 0.3
GND – 0.3
MAX
6
40
40
40
6
V
VS
+ 0.3
5
10
150
150
UNIT
V
V
V
V
V
mA
mA
°C
°C
Stresses beyond those listed under
Absolute Maximum Ratings
may cause permanent damage to the device. These are stress ratings only,
which do not imply functional operation of the device at these or any other conditions beyond those indicated under
Recommended Operating
Conditions.
Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
IN+ and IN– may have a differential voltage between –40 V and 40 V. However, the voltage at these pins must not exceed the range
–0.3 V to 40 V.
ESD, Electrostatic Discharge Protection
VALUE
Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins
(1)
V
(ESD)
Electrostatic
Charged device model (CDM), per JEDEC specification JESD22-C101, all
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