Texas Instruments BQ25170, Руководство пользователя

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2 Test Summary
This section describes the jumpers and connectors on the EVM as well as how to properly connect, setup, and
use the BQ25170EVM. Note that the default jumper setting of headers and switches are marked with two dots to
indicate the shorting jumper position. This will put the unit into a single cell Li-Ion configuration, 4.2V at 400mA.
2.1 Equipment
This section includes a list of supplies required to perform tests on this EVM.
1. Battery simulator such as Keithley 2400 or equilvalent. Or a single-cell battery.
2. Power supply, 5V 1A input. Note that unit can operate up to 6.6V input.
3. Voltage meter and current meter.
2.2 Cautions
To prevent possible damage to battery under test verify that charging conditions of the cell are not exceeded.
Check max charge voltage and current.
Power dissipation of the device can be exceeded with too high an input to output voltage drop and current.
Thermal regulation begins reducing current at 125 °C, at 150 °C device will shut off.
Device can get hot during high input-to-output voltage drop and high current conditions. Use caution when
handling the board.
2.3 Test Instructions
In order for this EVM to operate properly, the following components must be connected and properly configured.
1. Set input power supply to 5V and Battery Simulator to 3.6V with compliance to support 800mA. Turn off
Supply and Battery Simulator.
2. Connect input voltages to J1 and Battery Simulator to J2 on the EVM.
3. Configure all EVM jumpers to factory setting, refer to table below.
4. Turn on all supplies and loads
a. 5V Input supply current limit should be greater than 500mA
b. Out voltage should be 3.6V and charge current 400mA
c. LED D1 and D2 will be ON
5. Simulate battery completing charge by increasing Battery Simulator voltage to 4.2V
a. Current will decrease to 0mA
b. LED D2 will switch to OFF.
Table 2-1. Jumper Factory Setting
I/O Connector Factory Setting
JP1 Installed
JP2 IN
JP3 Installed
JP4 Fixed
JP5 Installed
JP6 Fixed
JP7 N/A
JP8 N/A
JP9 N/A
S1 Position 3 (4.2 V Li-Ion)
S2 N/A
Note: IN, ON, Fixed are positions of a 3 pin header. If it is a 2 pin header then it is installed or not installed.
www.ti.com Test Summary
SLUUCD6A – AUGUST 2020 – REVISED JUNE 2021
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BQ25170EVM Evaluation Module 3
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