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bq34z100 Quick Start Guide
•
The LED Configuration
When configuring the data flash registers, choose one of five LED/Comm configuration codes (refer to Table
21 in the bq34z100-G1 datasheet SLUSBZ5). After reviewing those possibilities, select the jumper pattern
desired for the J6 header on the EVM. For single LED mode, place a jumper on the pair marked A. For four
direct LED mode, place jumpers on A, B, C, and D. (Note: This configuration is only available when using
HDQ communications mode.) For external LEDs using the shift register option, place a single jumper on EXT.
In all cases, where one or more LED's are used, place a jumper across the J1 header to provide power to the
LED (see
Figure
2-1).
•
Parameter setup
The default data flash settings configure the device for 1-series Li-Ion cell. The user must update the data to
set up the number of series cells to match the physical pack configuration (see Cell Configuration in
3.2). This provides basic functionality to the setup. Other data flash parameters should also be updated to
fine tune the gauge to the pack. See the bq34z100 datasheet for help with setting the parameters.
6
bq34z100EVM Wide Range Impedance Track™ Enabled Battery Fuel Gauge
Solution
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SLUU904B – APRIL 2012 – REVISED APRIL 2021
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