Texas Instruments bq27531EVM, User Manual, Page: 14 / 27

EVM Hardware and Software Setup
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14 SLUUA90A – April 2013 – Revised July 2016
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bq27531EVM With bq27531 Battery Management Unit Impedance Track™
Fuel Gauge and bq24192 4.5-A, Switch-Mode Battery Charger for Single-Cell
Applications
4.1.3 Load #2 Between SYS and GND
Although not required, a resistive load capable of sinking up to 3 A can be used.
4.1.4 Meters
Three equivalent voltage meters (VM #) and two equivalent current meters (CM #) are required. The
current meters must be able to measure 3-A current.
4.1.5 Test Equipment Setup
1. For all power connections, use short, twisted-pair wires of appropriate gauge wire for the amount of the
current.
2. Set Power Supply #1 (PS #1) for 6-V, 3-A current limit and then turn off supply.
3. If BAT_Load as shown in Figure 8 is used, connect Power Supply #2 (PS #2) set to approximately 3.6
V to the input side (PS #2+/-) of BAT_Load, then turn off PS #2.
4. Connect the output side of the battery or BAT_Load in series with current meter to J12 (PACK+,
PACK-). Ensure that a voltage meter is connected across J12 (PACK+,PACK-).
5. Connect VM #3 across J5 (SYS, GND).
6. Ensure jumpers are at the default factory settings per Section 2.4
7. Connect I2C port of EV2300 with J10 board using the assembled 4 colored-wire connector included
with EV2300 kit (GND / BLACK at the bottom).
8. After the preceding steps have been performed, the test setup for PWR216 is configured as is shown
in Figure 8