參數(shù)資料
型號: LM3647
廠商: National Semiconductor Corporation
英文描述: Universal Battery Charger for Li-Ion, Ni-MH and Ni-Cd Batteries
中文描述: 通用電池充電器鋰離子電池,鎳氫,鎳鎘電池
文件頁數(shù): 4/17頁
文件大?。?/td> 272K
代理商: LM3647
4
www.national.com
3.0 Electrical Characteristics
Absolute Maximum Ratings
Supply Voltage (V
CC
)
Voltage at Any Pin
Total Current into V
CC
Pin (Source)
Total Current out of GND Pin (Sink)
Storage Temperature Range
Note: If Military/Aerospace specified devices are required
please contact the National Semiconductor Sales Office/Dis-
tributors for availability and specifications.
Note: Absolute maximum ratings indicate limits beyond
which damage to the device may occur. DC and AC electrical
specifications are not ensured when operating the device at
absolute maximum ratings.
DC Electrical Characteristics:
-40C
T
A
+85C unless otherwise specified
AC Electrical Characteristics
7V
–0.3V to V
CC
+ 0.3V
100 mA
110 mA
–65C to +140C
Parameter
Conditions
Min
4.5
Typ
Max
5.5
Units
V
mA
mA
Operating Voltage
Supply Current
LED-pin Sink Current
Temperature Input Levels
Ni-Cd / Ni-MH Upper limit
Li-Ion Upper limit
Lower Limit
Start limit
Li-Ion (for both 4.1 and 4.2V Cells)
Maintenance Charge Minimum Voltage
Maintenance Charge Restart Voltage
Good Battery Threshold
Maintenance Current
Maintenance Current Lower Threshold
Minimum Current Fast Charge Termination
Qualification Current
Maximum Charging Current
Ni-Cd/Ni-MH
Maximum Battery Voltage
Maximum Battery Current
Battery Presence Limit
Discharged Battery Limit
Good Battery Threshold
2.5
7.5
15
(Voltage at TEMP-pin)
(Voltage at TEMP-pin)
(Voltage at TEMP-pin)
(Voltage at TEMP-pin)
3.15
3.0
0.5
2.2
V
V
V
V
(CEL pin)
(CEL pin)
(CEL pin)
(Voltage at CS-pin)
(Voltage at CS-pin)
(Voltage at CS-pin)
(Voltage at CS-pin)
(Voltage at CS-pin)
2.6
2.153
1.2
2.3
2.42
2.3
2.3
1.5
V
V
V
V
V
V
V
V
(CEL pin)
(Voltage at CS-pin)
(CEL pin)
(CEL pin)
(CEL pin)
3.017
1.5
1.0
1.7
1.2
V
V
V
V
V
Soft Start Current
Topping Charge Current
Maintenance Charge Current
V
REF
(Voltage at CS-pin)
(Voltage at CS-pin)
(Voltage at CS-pin)
2.3
2.3
2.45
V
V
V
V
2.425
2.5
Parameter
Conditions
Min
Typ
2.5
250
0.1
Max
Units
MHz
Hz
Hz
RCIN frequency
Fast-PWM frequency
Slow-PWM frequency
R = 3.3k
, C = 68pF
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