參數(shù)資料
型號： LM3641M
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 電源管理
英文描述： Lithium-Ion Battery Pack Protection Circuit
中文描述： POWER SUPPLY MANAGEMENT CKT, PDSO8
封裝： SOIC-8
文件頁數(shù)： 3/17頁
文件大?。?/td> 327K
代理商： LM3641M
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Maximum Input Supply Voltage
(V
DD
)
V+ or GATE or Full Pin Voltage
Enable or V Pin Current
Power Dissipation (Note 2)
0.3V to 5.5V
0.3V to V
DD
+ 0.3V
±
200 μA
Internally limited
ESD Susceptibility
Human Body Model (Note 3)
Lead Temperature
(Soldering, 10s)
2 kV
260C
Operating Range
(Note 1)
Ambient Temperature Range
Junction Temperature Range
0C to +60C
40C to +125C
LM3641
Electrical Characteristics
Specifications with standard type face for T
J
= 25C, and those with
bold type
apply over
full Operating Temperature Range
.
Unless otherwise specified, V
SS
= 0V, V
DD
= 3.6V, V
ENABLE
= V
DD
.
Symbol
Parameter
Conditions
Typical
(Note 4)
A.S.(Note 6)
Limit
(Note 5)
Units
V
MAX
Overcharge Protection
Accuracy
Overcharge Protection
Accuracy
Overcharge Protection
Program Range
0C to +60C
±
25
V
mV(max)
V
MAX-85
Temp = 85C
<
V
MAX
@
25C
V
MAX-RANGE
4.2
V
4.0
4.4
V(max)
V(min)
V
V
SAFE
Max Cell Voltage Overshoot
(referred to V
MAX
)
Overdischarge Protection
Accuracy
V
MAX
+ 100 mV
V
MIN
0.57
V
MAX
V
+0.04
V
MAX
0.04
V
MAX
V(max)
V(min)
V
k
V
GATE-FETS-ON
I
GATE-FETS-ON
Gate Pin High
Gate Pin FET Turn-on
Impedence
Gate Pin OFF Current
Overcurrent Protection
Accuracy— Charging
1 M
Load
V
DD
50 mV
2
I
GATE-FETS-OFF
I
MAX-CHG
V
Gate
= 0V
10
nA
A
A.S.(Note 6)
+0.5
0.5
A(max)
A(min)
A
A(max)
A(min)
μApeak
μA rms
μA rms(max)
nA
nA rms
s
s(min)
s(max)
s
s(min)
s(max)
I
MAX-DIS
Overcurrent Protection
Accuracy— Disharging
A.S.(Note 6)
+0.5
0.5
I
SUPPLY
Supply Current (V
DD
, V+,
control pins) (Note 7)
normal mode
V
DD
= 3.6V
excludes I
R2
V
ENABLE
= V
DD
V
DD
= 3.6V
V+
<
V
MAX
120
1
4
I
ENABLE PIN
I
V+
t
SAMPLE
Enable Pin Current (sink)
Cell Sense Pin Current (sink)
Cell Voltage Sampling
Period— Normal and
Overdischarge Modes
400
40
1
0.75
1.5
t
SAMPLE-OVERCHARGED
Cell Voltage Sampling
Period— Overcharged
V+
>
V
MAX
0.25
0.19
0.28
N
SAMPLE
Number of consecutive
samples for overcharge or
overdischarge prior to
disconnect
4
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