Texas Instruments Evaluation Module for TPS22924C TPS22924CEVM-532 TPS22924CEVM-532 Datenbogen
Produktcode
TPS22924CEVM-532
Operation
2.3
JP3 – EN
This is the enable input for the device. Place a shorting jumper across the HI and EN pins of JP3 to
enable the integrated circuit (IC). Place a shorting jumper across the LO and EN pins of JP3 to disable the
IC. A shorting jumper must be installed on JP3 in either the ON or OFF positions, and EN must not be left
unconnected. An external enable source can be applied to the TPS22924 by removing the shunt and
connecting a signal to the center pin of JP3. EN
enable the integrated circuit (IC). Place a shorting jumper across the LO and EN pins of JP3 to disable the
IC. A shorting jumper must be installed on JP3 in either the ON or OFF positions, and EN must not be left
unconnected. An external enable source can be applied to the TPS22924 by removing the shunt and
connecting a signal to the center pin of JP3. EN
≥
0.75V is required for the ACTIVE or ON state of the
device. A switching signal may also be used and connected at this point.
2.4
J2/J5 – V
IN
Sense and V
OUT
Sense
These two connectors are used when very accurate measurements of input or output voltage are required,
Ron measurements should be made using these sense connections and measuring the voltage drop from
VIN to VOUT and then calculating the resistance.
Ron measurements should be made using these sense connections and measuring the voltage drop from
VIN to VOUT and then calculating the resistance.
3
Operation
Connect the positive input of the power supply to the VIN J1 and the negative lead of the power supply to
GND J3. The input voltage range of the TPS22924 is 0.75 V to 3.6 V.
GND J3. The input voltage range of the TPS22924 is 0.75 V to 3.6 V.
Output load can be applied by connecting between J4 VOUT and J6 GND. The TPS22924 is rated for a
maximum continuous current of 2A. Additional output load can be selected using JP6, JP7, and JP8.
Shorting across JP6 selects R1 an 36 ohm on board resistor. JP7 selects R2 an 11 ohm on board resistor.
JP8 selects R3 which is open for customer selection. R1, 2 and 3 are intended for light loads of the
output, observe the 1/8W power rating for these parts. Configure jumper JP3 as required. JP3 must be
installed for proper operation. ON is normal operation. While operating in the ON state the rise time of the
device is internally controlled to avoid inrush current. Different rise times are selected by device types as
shown above in
maximum continuous current of 2A. Additional output load can be selected using JP6, JP7, and JP8.
Shorting across JP6 selects R1 an 36 ohm on board resistor. JP7 selects R2 an 11 ohm on board resistor.
JP8 selects R3 which is open for customer selection. R1, 2 and 3 are intended for light loads of the
output, observe the 1/8W power rating for these parts. Configure jumper JP3 as required. JP3 must be
installed for proper operation. ON is normal operation. While operating in the ON state the rise time of the
device is internally controlled to avoid inrush current. Different rise times are selected by device types as
shown above in
. In the OFF position, the device is shut down and a 1250-
Ω
on-chip load resistor
is added for output quick discharge.
4
Test Results
See the Typical Characteristics section of the TPS22924 data sheet.
2
TPS22924EVM-532
SLVU456B – May 2011 – Revised May 2013
Copyright © 2011–2013, Texas Instruments Incorporated