Datasheet

Evaluation Board User Guide UG-329
Rev. 0 | Page 3 of 8
SETTING UP THE EVALUATION BOARD
POWERING UP THE EVALUATION BOARD
The ADP2164 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, make sure that the enable input, EN, is high.
Table 1. Jumper Settings
Jumper
State or
Connection
Function
J2 (EN) High Enable output voltage
Low
Disable output voltage
J4 (SYNC) High or low Force PWM
External clock Synchronize to the external clock
J7 (RT) High Set frequency to 1.2 MHz
Low Set frequency to 600 kHz
External resistor Set frequency from 500 kHz
to 1.4 MHz
J10 (TRK) High Tracking function not used
External voltage Tracking with the external voltage
Input Power Source Connection
Before connecting the power source to the ADP2164 evaluation
board, make sure 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 (J3) on the evaluation board.
2. Connect the negative terminal of the power source to the
GND terminal (J6) on the evaluation 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 (J6) on the evaluation board.
3. Connect the negative terminal (−) of the current meter to
the VIN terminal (J3) on the evaluation board.
Output Load Connection
Before connecting the load to the ADP2164 evaluation board,
make sure 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 terminal (+) of the load to the VOUT
terminal (J9) on the evaluation board.
2. Connect the negative terminal (−) of the load to the GND
terminal (J12) on the evaluation board.
If a separate 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 (J9) 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 (J12) on the evaluation board.
Input and Output Voltmeter Connections
Measure the input and output voltages with voltmeters. Make
sure 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 T1 on the evaluation
board.
2. Connect the negative terminal (−) of the input voltage
measuring voltmeter to Test Point T2 on the board.
3. Connect the positive terminal (+) of the output voltage
measuring voltmeter to Test Point T3 on the board.
4. Connect the negative terminal (−) of the output voltage
measuring voltmeter to Test Point T5 on the board.
Power On the Evaluation Board
When the power source and load are connected to the ADP2164
evaluation board, the board can be powered on. If the input
power source is above 2.7 V, the output voltage rises to 1.2 V
by default.