Datasheet

LTC4008
6
4008fb
TYPICAL PERFORMANCE CHARACTERISTICS
Battery Leakage Current vs
Battery Voltage Effi ciency at 19VDC V
IN
Effi ciency at 12.6V with 15VDC V
IN
Charging Voltage Error
TEMP = 27°C, I
LOAD
= 0.120A
(T
A
= 25°C unless otherwise noted)
BATTERY VOLTAGE (V)
0 5 10 15 20 25 30
BATTERY LEAKAGE CURRENT (μA)
4008 G07
40
35
30
25
20
15
10
5
0
VDCIN = 0V
CHARGE CURRENT (A)
1.000.50 1.50 2.00 2.50 3.00
EFFICIENCY (%)
4008 G09
16.8V
12.6V
100
95
90
85
80
75
CHARGE CURRENT (A)
1.000.50 1.50 2.00 2.50 3.00
EFFICIENCY (%)
4008 G10
100
95
90
85
80
75
CHARGING VOLTAGE (V)
0
OUTPUT VOLTAGE ERROR (V)
0.150
0.100
0.125
0.075
0.050
0
0.025
–0.025
–0.050
–0.075
–0.100
–0.125
–0.150
16
4008 G11
42 6 10 14 18
8
12
2220
DCIN = 15V
DCIN = 20V