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LM3647IM Datenblatt(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Teilenummer LM3647IM
Bauteilbeschribung  Universal Battery Charger for Li-Ion, Ni-MH and Ni-Cd Batteries
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Hersteller  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM3647IM Datenblatt(HTML) 4 Page - National Semiconductor (TI)

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3.0 Electrical Characteristics
Absolute Maximum Ratings
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: -40˚C ≤ T
A ≤ +85˚C unless otherwise specified
AC Electrical Characteristics
Supply Voltage (VCC)7V
Voltage at Any Pin
–0.3V to VCC + 0.3V
Total Current into VCC Pin (Source)
100 mA
Total Current out of GND Pin (Sink)
110 mA
Storage Temperature Range
–65˚C to +140˚C
Parameter
Conditions
Min
Typ
Max
Units
Operating Voltage
4.5
5.5
V
Supply Current
2.5
mA
LED-pin Sink Current
7.5
15
mA
Temperature Input Levels
Ni-Cd / Ni-MH Upper limit
(Voltage at TEMP-pin)
3.15
V
Li-Ion Upper limit
(Voltage at TEMP-pin)
3.0
V
Lower Limit
(Voltage at TEMP-pin)
0.5
V
Start limit
(Voltage at TEMP-pin)
2.2
V
Li-Ion (for both 4.1 and 4.2V Cells)
Maintenance Charge Minimum Voltage
(CEL pin)
2.6
V
Maintenance Charge Restart Voltage
(CEL pin)
2.153
V
Good Battery Threshold
(CEL pin)
1.2
V
Maintenance Current
(Voltage at CS-pin)
2.3
V
Maintenance Current Lower Threshold
(Voltage at CS-pin)
2.42
V
Minimum Current Fast Charge Termination
(Voltage at CS-pin)
2.3
V
Qualification Current
(Voltage at CS-pin)
2.3
V
Maximum Charging Current
(Voltage at CS-pin)
1.5
V
Ni-Cd/Ni-MH
Maximum Battery Voltage
(CEL pin)
3.017
V
Maximum Battery Current
(Voltage at CS-pin)
1.5
V
Battery Presence Limit
(CEL pin)
1.0
V
Discharged Battery Limit
(CEL pin)
1.7
V
Good Battery Threshold
(CEL pin)
1.2
V
Soft Start Current
(Voltage at CS-pin)
2.3
V
Topping Charge Current
(Voltage at CS-pin)
2.3
V
Maintenance Charge Current
(Voltage at CS-pin)
2.425
2.45
V
VREF
2.5
V
Parameter
Conditions
Min
Typ
Max
Units
RCIN frequency
R = 3.3k
Ω, C = 68pF
2.5
MHz
Fast-PWM frequency
250
Hz
Slow-PWM frequency
0.1
Hz


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