Texas Instruments bq24295EVM-549, Руководство пользователя

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Test Summary
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2 Test Summary
Section 2.1 – Section 2.3 explains the equipment, the equipment setup, and the test procedures.
2.1 Equipment
2.1.1 Power Supplies
Power supply #1 (PS#1): a power supply capable of supplying 5 V at 1 A is required. While this part can
handle a larger voltage and/or current, it is not necessary for this procedure.
2.1.2 Load #1 (Electronic Load, Constant Voltage < 4.5 V) - Battery Connection
A 0–20 V/0–5 A, > 30-W system, DC electronic load and setting as constant voltage load mode.
Or:
Kepco load: BOP 20–5M, DC 0 to ±20 V, 0 to ±5 A (or higher)
Or:
Real single-cell battery
2.1.3 Load #2 – Use with Boost Mode
PMID-to-GND load, 10 Ω , 5 W or greater
2.1.4 Meters
Five Fluke 75 multimeters, (equivalent or better)
Or:
Three equivalent voltage meters and two equivalent current meters.
The current meters must be capable of measuring 2 A of current.
2.1.5 Computer
A computer with at least one USB port and a USB cable. The bq2429xEVM evaluation software must be
properly installed.
2.1.6 USB-to-GPIO Communication Kit (HPA172-USB Interface Adapter)
2.1.7 Software
Unzip the bq2429xEVM_GUI.zip and double-click on the SETUP.EXE file. Follow the installation steps.
The software supports the Microsoft
®
Windows
®
XP and Windows 7 operating systems.
2.2 Equipment Setup
(A) Set PS#1 for 5-V DC, 1-A current limit and then turn off the supply.
(B) Connect the output of PS#1 in series with a current meter (multimeter) to J2 (VBUS and GND), as
shown in Figure 3 .
(C) Connect a voltage meter across J2 (VBUS) and J2 (GND).
(D) Turn on the electron Load, set to constant voltage mode and output to 2.5 V. Turn off (disable) Load.
Connect Load to J5 (BAT+ and GND) as shown in Figure 3 , via a current meter in the return line of the
load. Connect a voltage meter across J5 (BAT+ and GND).
(E) Connect a voltage meter across J3 (SYS and GND).
(F) Connect HPA172 USB interface adapter to the computer with a USB mini-cable and to J4 with the 10-
pin ribbon cable. The connections are shown in Figure 2 .
4 bq24295EVM-549 (PWR549) User’s Guide SLUUAO5B – August 2013 – Revised April 2014
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