Texas Instruments INA219EVM - INA219EVM Evaluation Module INA219EVM INA219EVM Datenbogen
Produktcode
INA219EVM
www.ti.com
INA219EVM Hardware Setup
Table 4. Power-Supply Jumper Configuration #1
Mode
Jumper
Comment
External Power—5V
JUMP17 = BUS (not used)
In this mode, all power is supplied to the EVM via J5 or T3. The external
(default jumper settings)
JUMP13 = REG
supply must be between 5.8V and 10.4V for proper operation. All digital
JUMP14 = 9V
I/Os are regulated to 5V using U19 (
JUMP1 = EXT
JUMP2 = EXT
JUMP6 = 5V
JUMP7 = REF
JUMP2 = EXT
JUMP6 = 5V
JUMP7 = REF
External Power—3V
JUMP17 = BUS (not used)
In this mode, all power is supplied to the EVM via J5 or T3. The external
(typical jumper settings)
JUMP13 = REG
supply must be between 5.8V and 10.4V for proper operation. All digital
JUMP14 = 9V
I/Os are regulated to 3V using U19 (
JUMP1 = EXT
JUMP2 = EXT
JUMP6 = 3V
JUMP7 = REF
JUMP2 = EXT
JUMP6 = 3V
JUMP7 = REF
External Power—Variable
JUMP17 = Vraw
In this mode, all the digital I/Os are referenced to the supply that is
Supply
JUMP13 = BUS
attached to either J5 or T3.
JUMP14 = 9V (not used)
JUMP1 = EXT
JUMP2 = EXT
JUMP1 = EXT
JUMP2 = EXT
CAUTION
JUMP6 = 5V (not used)
JUMP7 = REG (ratiometric
JUMP7 = REG (ratiometric
It is absolutely critical that the
mode)
supply
voltage
does
not
exceed 5.5V in this mode.
The supply is directly applied to devices with 5.5V absolute maximum
ratings. This mode of operation is useful when a device supply other
then 3.0V or 5.0V is required.
ratings. This mode of operation is useful when a device supply other
then 3.0V or 5.0V is required.
Table 5. Power-Supply Jumper Configuration #2
Mode
Jumper
Comment
Bus Power—5V
JUMP17 = BUS
In this mode, the USB bus completely powers the EVM. The USB bus is
JUMP13 = BUS
regulated by the master (computer) to be 5V. This mode relies upon
JUMP14 = 9V (not used)
external regulation. This mode is recommended only when an external
JUMP1 = BUS
9V supply is not available. If an external 9V supply is available, use
JUMP2 = BUS
either External Power 5V mode or External Power 3V mode.
JUMP6 = 5V (not used)
JUMP7 = REG (ratiometric
mode, 5V supply)
JUMP7 = REG (ratiometric
mode, 5V supply)
Bus Power—3V
JUMP17 = BUS (not used)
In this mode, the USB bus completely powers the EVM. The regulator
JUMP13 = REG
(U19,
) is used to generate a 3V supply for all digital I/O.
JUMP14 = BUS
JUMP1 = BUS
JUMP2 = BUS
JUMP6 = 3V
JUMP7 = REG (ratiometric
mode, 5V supply)
JUMP1 = BUS
JUMP2 = BUS
JUMP6 = 3V
JUMP7 = REG (ratiometric
mode, 5V supply)
13
SBOU074A – January 2009 – Revised February 2010
INA219 Evaluation Module
Copyright © 2009–2010, Texas Instruments Incorporated