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SLUSBJ3B –AUGUST 2013–REVISED JANUARY 2014
HIGH-LEVEL FUNCTIONAL BLOCK DIAGRAM
VSTOR
LBST
VBAT_SEC
VBAT_PRI
PFM Boost
Charger
Controller
VOR
CKT
VSS
VSS
Cold-start
Unit
VB_PRI_ON
VB_SEC_ON
Enable
Enable
VIN_DC
Interrupt
VBAT_OK
OK_PROG
VOC_SAMP
VREF_SAMP
BAT_SAVE
+
MPPT
Controller
+
Battery Threshold
Control
OT
VREF
OK
OK_HYST
Temp
Sensing
Element
VREF
Bias Reference &
Oscillator
VREF
VBAT_UV
VBAT_OV
VRDIV
EN
Figure 5. High-Level Functional Diagram
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