Texas Instruments TPS3899EVM, User Manual

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3 EVM Connectors
This section describes the connectors, jumpers, and test points on the EVM as well as how to connect, set up,
and properly use the EVM.
3.1 EVM Test Points
Table 3-1 lists the test points and functional descriptions. All TPS3899 pins have a corresponding test point on
the EVM. These test points are located close to the pins for more accurate measurements.
Table 3-1. Test Points
Test Point Number Test Point Silkscreen
Label
Function Description
TP1 VDD Connect to VDD pin Allows user to connect to VDD pin. The VDD pin
connects to the input power supply.
TP2 RESET Connect to RESET pin Allows user to monitor the RESET output pin.
TP3 SENSE Connect to SENSE pin Allows user to connect to SENSE pin. The SENSE
pin is the voltage that will be monitored by
TPS3899.
TP4 CTS Connect to CTS pin Allows user to monitor the CTS pin. The CTS
capacitor sets the sense delay. Leave CTS pin
floating (no capacitor) for minimum sense delay.
TP5 CTR Connect to CTR pin Allows user to monitor the CTR pin. The CTR
capacitor sets the reset delay. Leave CTR pin
floating (no capacitor) for minimum reset delay.
TP6 GND Connect to GND pin Allows user to connect to GND.
3.2 EVM Jumpers
Table 3-2 lists the jumpers on the TPS3899EVM. As ordered, the EVM will have five jumpers and three shunts.
Table 3-2. EVM Jumpers
Jumper Default Connection Description
J1 Shorted Both pins on J1 are shorted together. Connect either pin on jumper J1 to the
input power supply.
J2 Shorted Both pins on J2 are connected together. Use either pin on jumper J2 monitor
the output RESET.
J3 Closed (Shunt) Connect a shunt to jumper J3 to short V
MON
to VDD.
J4 Closed (Shunt) Connect a shunt to jumper J4 to use R1 as the pull-up resistor on the RESET
output pin.
J5 Closed (Shunt on R
DIV
[pin
3] to GND [pin 2])
Connect a shunt to this jumper J5 for different configurations. Connect shunt
to R
DIV
and GND for voltage divider configuration. Connect shunt to GND and
SENSE to manually reset. Connect shunt to RESET and R
DIV
for
programmable push-button functionality.
J6 Shorted Both pins on J6 are connected together. Connect either pin on jumper J6 to
connect to ground.
EVM Connectors www.ti.com
8 TPS3899EVM Voltage Supervisor User Guide SLVUBZ3 – SEPTEMBER 2020
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