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| MC34280 Datasheet, PDF (3/20 Pages) ON Semiconductor – Power Supply & Management IC for Handheld Electronic Products | |||
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MC34280
TIMING DIAGRAMS
VBAT
ENABLE
VMAIN
PORB
VAUXEN
VMAINreg â 0.15 V
VMAINreg
+ Ç Ç TPOR
1.22
0.5
Cpor RIref
tPORC
Figure 2. Startup Timing
VBAT
LOWBAT Threshold
LOWBATB
VMAIN
ENABLE
PORB
Figure 3. Power Down Timing
VMAINreg â 0.5 V
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