MAX1666A 데이터 시트보기 (PDF) - Maxim Integrated
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MAX1666A Datasheet PDF : 17 Pages
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Advanced Lithium-Ion
Battery-Pack Protector
BATTERY
YES
CONNECTED
VSRC < VB4P + 1V
SHUTDOWN
VSRC > VB4P + 1V
NO
VCC > 2.85V
YES
(DISCHARGE CURRENT · RCS)
300mV
(>2.4ms)
CHARGE
CURRENT
MONITOR
(CHARGE CURRENT · RCS)
200mV
(>2.4ms)
OVER-
DISCHARGE
DSO = H
RESET RESET OVERCHARGE
DS0 = L CGO = L CGO = H
STANDBY
80ms
SAMPLE
2.5ms
CHECK VREF
550ms DELAY
VCELL <
UNDERVOLTAGE
THRESHOLD
YES
NO
LATCH UVF = ‘1’
CELL MISMATCH
YES
NO
LATCH MMF = ‘1’
NO
NO
VREF > 1.1V
YES
VCELL <
UNDERVOLTAGE
WARNING
THRESHOLD
YES
LATCH UVW = ‘1’
VCELL >
OVERVOLTAGE
THRESHOLD
YES
NO
LATCH OVF = ‘1’
UVF = ‘1’
AND
YES
VSRC < VB4P + 1V
NO
GO TO
TABLE 2
Figure 2. Cell Fault Monitor
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