ZSPM4521
Evaluation Kit Manual
Kit Description
February 12, 2013
© 2013 Zentrum Mikroelektronik Dresden AG
— Rev. 1.00
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the
prior written consent of the copyright owner. The information furnished in this publication is
subject to changes without notice.
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3
General Overview
3.1.
Default Settings
The EVB is preset to have a 1.0A maximum charging current, 4.12V termination voltage, 100mA pre-charge
current, and 100mA end-of-charge current. These parameters are adjustable and can be customized to a specific
system optimization and stored in EEPROM memory through the I
2
C
™* interface. With the default settings, the
charging current and termination voltage are independent of battery temperature. However, these parameters can
be set via EEPROM settings to automatically adjust based on the battery temperature in order to meet the JEITA
charging standard. Details of the I
2
C™ interface and register programming can be found in the ZSPM4521
datasheet.
The SDA and SCL nodes for I
2
C
™ communication are accessible via the J6 header pins (see Figure 2.1). If the
EVB
’s default ZSPM4521 configuration settings are desired, no I
2
C
™ operation is needed.
Operating the ZSPM4521 EVB is straightforward. Once the Li-ion battery and input voltage are properly
connected as described in section 4.1, simply set switch SW1 to the ON position (see Figure 2.1), which starts the
charging of the battery.
* I
2
C
™ is a trademark of NXP.
