Figure 3.1 Charging State Diagram - ZMDI ZSPM4521 Manual

ZSPM4521
Evaluation Kit Manual

Figure 3.1 Charging State Diagram

INITIALIZE STATE
PRE-CHARGE STATE
FULL-CHARGE CONSTANT
CURRENT (CC) MODE
VBAT =
V
TERMINATION
© 2013 Zentrum Mikroelektronik Dresden AG — Rev. 1.00
Kit Description
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the
February 12, 2013
prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
Charging Conditions
NO
MPPT w/Pre-charge
NO
MPPT w/1C Current Limit and
NO
VBAT
NO
VBAT regulated to V
YES
EN
INITIALIZE
Waiting for Valid
No Faults &
VBAT < V
RESTART
YES
PRE-CHARGE
Current Limit
VBAT > V
PRECHG
Threshold
YES
1C CHARGING
Full Charge Timer
=V
TERMINATION
& I < I
CHARGE EOC
YES
END OF CHARGE
TERMINATION
with EOC Timer
I < Top Off
CHARGE
End Current
YES
YES
VBAT< V
PRECHG
Threshold
NO
CONSTANT VOLTAGE MODE
NO
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