Rainbow Electronics DS2770 - Manual (Page 26)

DS2770
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EEPROM RELIABILITY
SPECIFICATION
(-20 °C to 70°C, 2.7V £ V
DD
£ 5.5V)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS NOTES
Copy to EEPROM Time t
EEC
5 10 ms
EEPROM Copy
Endurance N
EEC
25,000 cycles 8
ELECTRICAL CHARACTERISTICS:
CHARGER FUNCTION (0
°C to 50°C, 2.7V £ V
DD
£ 5.5V)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS NOTES
Low Battery Voltage
Threshold V
LB
3.0 V 1
Pulse Charging Voltage
Threshold V
CV
4.1
4.2
V 1,6
Lower Valid Charging
Temperature Threshold T
CL
0 °C
Upper Valid Charging
Temperature Threshold T
CH
+40 °C
Maximum Charging
Temperature
Termination Threshold T
MCT
+50 °C
Overcharge Time t
VCV
875 ms
Charge Done Timer t
CD
14 s