Texas Instruments Evaluation Module for TPS3808G01 TPS3808G01DBVEVM TPS3808G01DBVEVM Datenbogen
Produktcode
TPS3808G01DBVEVM
Power Supply 1
(1.7 V to 6.5 V)
Power Supply 2
(1.7 V to 6.5 V)
Oscilloscope /
Multimeter /
External Circuit
Power Supply 1
(1.7 V to 6.5 V)
Oscilloscope /
Multimeter /
External Circuit
Operation
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3.1.2
Dual-Rail Monitoring
To use the TPS3808G01EVM as a dual-rail monitor, connect shorts on JP2 and JP4. Use JP1 to set the
desired level of the voltage rail to be monitored. JP3 can be used to set the duration of the reset signal, or
left open for a fixed 20-ms duration. Connect one power supply to VDD (J4) and GND (J5) and a second
power supply (or external rail to be monitored) to Monitor Voltage (J3) and GND (J6). Connect the RST
output (J1) to an oscilloscope, multimeter, or external circuit.
desired level of the voltage rail to be monitored. JP3 can be used to set the duration of the reset signal, or
left open for a fixed 20-ms duration. Connect one power supply to VDD (J4) and GND (J5) and a second
power supply (or external rail to be monitored) to Monitor Voltage (J3) and GND (J6). Connect the RST
output (J1) to an oscilloscope, multimeter, or external circuit.
A diagram showing the proper configuration for dual-rail monitoring is given in
.
Figure 2. Using the TPS3808G01EVM as a Dual-Rail Monitor
3.1.3
Using Fixed-Voltage Versions of TPS3808Gxx
It is possible to use the TPS3808G01EVM to evaluate fixed-voltage versions of the
as well.
First, the TPS3808G01 device (U1) must be carefully replaced with the desired fixed-voltage TPS3808Gxx
device. Configure the board jumpers so that JP2 and JP5 are shorted and JP4 is open. Again, JP3 may
be used to set the reset signal duration, or simply left open for a fixed 20-ms duration. Connect a power
supply to VDD (J4) and GND (J5). Connect the RST output (J1) to an oscilloscope, multimeter, or external
circuit.
device. Configure the board jumpers so that JP2 and JP5 are shorted and JP4 is open. Again, JP3 may
be used to set the reset signal duration, or simply left open for a fixed 20-ms duration. Connect a power
supply to VDD (J4) and GND (J5). Connect the RST output (J1) to an oscilloscope, multimeter, or external
circuit.
illustrates the proper configuration to evaluate fixed-voltage versions of the TPS3808Gxx.
Figure 3. Using the TPS3808G01EVM with Fixed-Voltage TPS3808Gxx
Note that jumper JP5 shorts VDD (the power supply rail) to the SNS input of the TPS3808Gxx. In order to
configure the TPS3808G01EVM to monitor an external power rail, simply remove the short across JP5
and connect the voltage to be monitored to pin 2 (marked SNS) of the JP5 header. J6 (GND) can be used
as a ground connection for this voltage.
configure the TPS3808G01EVM to monitor an external power rail, simply remove the short across JP5
and connect the voltage to be monitored to pin 2 (marked SNS) of the JP5 header. J6 (GND) can be used
as a ground connection for this voltage.
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TPS3808G01EVM
SBVU015 – April 2010
Copyright © 2010, Texas Instruments Incorporated