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MITSUMI
Timing Chart
IC for Control of Lithium-ion Betteries Charging (one cell) MM1438
Battery connection and SW1: ON
VCC
SW1
0
OFF
0
OFF
ON
ON
Rated voltage mode
CEL
CS
0
Charging OFF
100mV
0
LV
H
0
L
Charging ON
Rated current mode
Normal charging
CEL
0
Charging OFF
CS
0
LV
L
0
Application Circuit
Battery low voltage
(2V or less)
(SW2 : L)