Advanced Li+ Battery-Pack Protectors
CELL VOLTAGE
320ms
UNDERVOLTAGE CONDITION
UNDERVOLTAGE THRESHOLD
SAMPLING
DSO, CGO, TKO
OVERVOLTAGE THRESHOLD
CELL VOLTAGE
OVERVOLTAGE CONDITION (MAX1894, NO HYSTERESIS)
320ms
80ms
SAMPLING
TKO, CGO
OVERVOLTAGE THRESHOLD
CELL VOLTAGE
OVERVOLTAGE THRESHOLD HYSTERESIS
SAMPLING
OVERVOLTAGE CONDITION (MAX1894, WITH HYSTERESIS)
320ms
TKO, CGO
Figure 4. Undervoltage and Overvoltage Timing Diagrams
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