
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage (V
CC)
-0.3 to 24V
LV
-0.3 to 24V
EXT (Note 2)
-0.3 to 24V
LV
SEL
-0.3 to 24V
LV
ENB
-0.3 to 24V
ESD Susceptibility (Note 3)
2500V
Storage Temperature
40C to +125C
Lead Temp. Soldering
Vapor Phase (60 sec.)
Infrared (15 sec.)
215C
220C
Power Dissipation (T
A = 25C)
(Note 4)
Max. Package Dissipation
350mW
Operating Ratings (Note 1)
Supply Voltage (V
CC)
4.5V to 24V
Ambient Temperature Range
20C to 70C
Junction Temperature Range
20C to 85C
Thermal Resistance,
θ
JA
SOIC-8
170C/W
Electrical Characteristics
LM3622-XX
Unless otherwise specified V
CC = 5V/Cell TA =TJ = 25C. Limits with standard typeface apply for TJ = 25C, and limits in bold-
face type apply over the indicated temperature range.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
V
CC
Operating power supply range
4.5
24.0
V
I
CC
Quiescent Current
210
A
V
CEL
Regulation Voltage
LM3622A-4.1
LM3622A-8.2
LM3622A-4.2
LM3622A-8.4
LM3622-4.1
LM3622-8.2
LM3622-4.2
LM3622-8.4
T
J = 0C to +70C
V
CC = 4.5V/cell (Note 5)
4.070
8.140
4.170
8.340
4.050
8.100
4.150
8.300
4.100
8.200
4.200
8.400
4.100
8.200
4.200
8.400
4.130
8.260
4.230
8.460
4.150
8.300
4.250
8.500
V
Long Term Stability
(Note 6)
0.02
%
V
CS
Current limit threshold at CS pin
V
CEL = 4V for LM3622-4.X
V
CEL = 8V for LM3622-8.X
90
100
110
mV
I
CEL
Current in CEL pin
V
CC Supply connected
25
A
V
CC Supply Open
200
nA
LVth
Low voltage detect threshold
(between pins CS and GND)
LV
ENB = 0V and LVSEL = 0V
2.00
2.15
2.30
V/Cell
LV
ENB = 0V and LVSEL = VCC
2.55
2.70
2.85
V/Cell
I
EXT
EXT pin output sink current
V
EXT = 4V for LM3622-4.X
V
EXT = 8V for LM3622-8.X
15
25
mA
I
IN1
LV
SEL input current
LV
SEL = 5V, LM3622-4.X
LV
SEL = 10V, LM3622-8.X
20
50
A
I
IN2
LV
ENB input current
LV
ENB = 5V, LM3622-4.X
LV
ENB = 10V, LM3622-8.X
20
50
A
I
LV
LV pin leakage current
LV = 5V/Cell
250
nA
V
LV
LV pin saturation voltage
I
SINK = 1mA
T
J = 20C to 85C
0.25
0.40
V
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is in-
tended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics.
Note 2: VEXT is not allowed to exceed (VCC+ 0.3V) or damage to the device may occur.
Note 3: Rating is for the human body model, a 100 pF capacitor discharged through a 1.5k
resistor into each pin.
Note 4: The maximum power dissipation must be de-rated at elevated temperatures and is limited by TJMAX (maximum junction temperature), θJA
(junction-to-ambient thermal resistance) and TA (ambient temperature). The maximum power dissipation at any temperature is: PDissMAX = (TJMAX TA)/ θJA up
to the value listed in the Absolute Maximum Ratings.
Note 5: Limits reflect initial accuracy.
Note 6: TJ = 85C, 1000 hours. Activation energy of 0.78eV used.
LM3622
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