ADP5302-EVALZ User Guide
UG-880
Rev. 0 | Page 3 of 7
EVALUATION BOARD SOFTWARE QUICK START PROCEDURES
CONFIGURING THE BOARD
The
ADP5302
evaluation board is fully assembled and tested.
Before applying power to the evaluation board, follow the setup
procedures in this section.
Jumper Settings
Table 1 describes the jumper settings. Before selecting the
jumper settings, ensure that the enable input, EN, is high.
Table 1. Jumper Settings
Jumper
State or
Connection
Function
J5 (EN)
High
Enable V
OUT
Low
Disable V
OUT
J8 (VID)
VIN
2.5 V
GND
3 V
Floating
Program V
OUT
by an external
resistor
J6 (SYNC)
VIN
Pulse-width modulation (PWM)
mode
GND
Hysteresis mode
External
frequency
Set the frequency from
1.2 MHz to 2.5 MHz
J7 (VIN OK)
VIN
Pull VIN OK to VIN
VOUT
Pull VIN OK to VOUT
Input Power Source Connection
Before connecting the power source to the
ADP5302
evaluation
board, ensure that the board is turned off. If the input power
source includes a current meter, use the meter to monitor the
input current as follows:
1.
Connect the positive terminal of the power source to the
VIN terminal (J1) on the evaluation board.
2.
Connect the negative terminal of the power source to the
GND terminal (J3) on the board.
If the power source does not include a current meter, connect a
current meter in series with the input source voltage as follows:
1.
Connect the positive terminal of the power source to the
positive terminal (+) of the current meter.
2.
Connect the negative terminal of the power source to the
GND terminal (J3) on the evaluation board.
3.
Connect the negative terminal (−) of the current meter to
the VIN terminal (J1) on the evaluation board.
Output Load Connection
Before connecting the load to the
ADP5302
evaluation board,
ensure that the board is turned off. If the load includes a current
meter or if the current is not measured, connect the load
directly to the evaluation board as follows:
1.
Connect the positive load connection (+) to the VOUT
terminal (J2).
2.
Connect the negative load connection (−) to the GND
terminal (J4).
If a current meter is used, connect it in series with the load as
follows:
1.
Connect the positive terminal (+) of the current meter to
the VOUT terminal (J2) on the evaluation board.
2.
Connect the negative terminal (−) of the current meter to
the positive terminal (+) of the load.
3.
Connect the negative terminal (−) of the load to the GND
terminal (J4) on the evaluation board.
Input and Output Voltmeter Connections
Measure the input and output voltages with voltmeters. Ensure
that the voltmeters are connected to the appropriate test points
on the board. If the voltmeters are not connected to the correct
test points, the measured voltages may be incorrect due to the
voltage drop across the leads or due to the connections between
the board, the power source, and/or the load.
1.
Connect the positive terminal (+) of the input voltage
measuring voltmeter to Test Point TP1 on the evaluation
board.
2.
Connect the negative terminal (−) of the input voltage
measuring voltmeter to Test Point TP5 on the board.
3.
Connect the positive terminal (+) of the output voltage
measuring voltmeter to Test Point TP4 on the board.
4.
Connect the negative terminal (−) of the output voltage
measuring voltmeter to Test Point TP7 on the board.
Power On the Evaluation Board
When the power source and load are connected to the
ADP5302-EVALZ
evaluation board, the board can be powered
on. If the input power source exceeds 2.06 V (typical), the
output voltage rises to 1.8 V by default.
