Datasheet

LM3622
SNVS043B –FEBRUARY 2000–REVISED APRIL 2013 www.ti.com
ELECTRICAL CHARACTERISTICS LM3622-XX
Unless otherwise specified V
CC
= 5V/Cell T
A
=T
J
= 25°C. Limits with standard typeface apply for T
J
= 25°C, and limits in
boldface 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 µA
Regulation Voltage T
J
= 0°C to +70°C
LM3622A-4.1 V
CC
= 4.5V/cell
(1)
4.070 4.100 4.130 V
LM3622A-8.2 8.140 8.200 8.260 V
LM3622A-4.2 4.170 4.200 4.230 V
V
CEL
LM3622A-8.4 8.340 8.400 8.460 V
LM3622-4.1 4.050 4.100 4.150 V
LM3622-8.2 8.100 8.200 8.300 V
LM3622-4.2 4.150 4.200 4.250 V
LM3622-8.4 8.300 8.400 8.500
Long Term Stability See
(2)
0.02 %
V
CS
V
CEL
= 4V for LM3622-4.X 90 100 110 mV
Current limit threshold at CS pin
V
CEL
= 8V for LM3622-8.X
I
CEL
Current in CEL pin V
CC
Supply connected 25 µA
V
CC
Supply Open 200 nA
LVth Low voltage detect threshold LV
ENB
= 0V and LV
SEL
= 0V 2.00 2.15 2.30 V/Cell
(between pins CS and GND)
LV
ENB
= 0V and LV
SEL
= V
CC
2.55 2.70 2.85 V/Cell
I
EXT
EXT pin output sink current V
EXT
= 4V for LM3622-4.X 15 25 mA
V
EXT
= 8V for LM3622-8.X
I
IN1
LV
SEL
input current LV
SEL
= 5V, LM3622-4.X 20
µA
LV
SEL
= 10V, LM3622-8.X 50
I
IN2
LV
ENB
input current LV
ENB
= 5V, LM3622-4.X 20
µA
LV
ENB
= 10V, LM3622-8.X 50
I
LV
LV pin leakage current LV = 5V/Cell 250 nA
V
LV
LV pin saturation voltage I
SINK
= 1mA 0.25 0.40 V
T
J
= −20°C to 85°C
(1) Limits reflect initial accuracy.
(2) T
J
= 85°C, 1000 hours. Activation energy of 0.78eV used.
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