LM3622 Datasheet, PDF (4/15 Pages) National Semiconductor (TI) – Lithium-Ion Battery Charger Controller

LM3622
SNVS043B – FEBRUARY 2000 – REVISED APRIL 2013
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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
I_CC
V_CEL
Operating power supply range
Quiescent Current
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
Long Term Stability
T_J = 0°C to +70°C
V_CC = 4.5V/cell ⁽¹⁾
See ⁽²⁾
4.5
24.0
V
210
µA
4.070
4.100
4.130
V
8.140
8.200
8.260
V
4.170
4.200
4.230
V
8.340
8.400
8.460
V
4.050
4.100
4.150
V
8.100
8.200
8.300
V
4.150
4.200
4.250
V
8.300
8.400
8.500
0.02
%
V_CS
Current limit threshold at CS pin
I_CEL
Current in CEL pin
LVth
I_EXT
I_IN1
I_IN2
I_LV
V_LV
Low voltage detect threshold
(between pins CS and GND)
EXT pin output sink current
LV_SEL input current
LV_ENB input current
LV pin leakage current
LV pin saturation voltage
V_CEL = 4V for LM3622-4.X
V_CEL = 8V for LM3622-8.X
V_CC Supply connected
V_CC Supply Open
LV_ENB = 0V and LV_SEL = 0V
LV_ENB = 0V and LV_SEL = V_CC
V_EXT = 4V for LM3622-4.X
V_EXT = 8V for LM3622-8.X
LV_SEL = 5V, LM3622-4.X
LV_SEL = 10V, LM3622-8.X
LV_ENB = 5V, LM3622-4.X
LV_ENB = 10V, LM3622-8.X
LV = 5V/Cell
I_SINK = 1mA
T_J = −20°C to 85°C
90
100
110
mV
25
µA
200
nA
2.00
2.15
2.30
V/Cell
2.55
2.70
2.85
V/Cell
15
25
mA
20
50
µA
20
50
µA
250
nA
0.25
0.40
V
(1) Limits reflect initial accuracy.
(2) T_J = 85°C, 1000 hours. Activation energy of 0.78eV used.
4
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