isl88731a

Manufacturer Part Numberisl88731a
DescriptionSmbus Level 2 Battery Charger
ManufacturerIntersil Corporation
isl88731a datasheet
 


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Typical Operating Performance
5.15
5.10
5.05
5.00
4.95
4.90
4.85
0
20
40
60
VDDP LOAD CURRENT (mA)
FIGURE 3. VDD LOAD REGULATION
15
10
5
0
-5
-10
-15
1
2
3
4
5
ADAPTER CURRENT (A)
FIGURE 5. ICM ACCURACY vs AC-ADAPTER CURRENT
CHARGE
CURRENT
FIGURE 7. CHARGE ENABLE
6
ISL88731A
DCIN = 20V, 3S2P Li-Battery, T
= +25°C, unless otherwise noted.
A
3.23
3.22
3.21
3.20
3.19
3.18
3.17
80
100
0
FIGURE 4. VREF LOAD REGULATION
13.0
12.5
12.0
11.5
11.0
10.5
10.0
6
7
8
0
20
FIGURE 6. TYPICAL CHARGING VOLTAGE AND CURRENT
VCOMP
ICOMP
INDUCTOR
CURRENT
50
100
150
200
I VREF (µA)
VCHG (V)
ICHG (A)
40
60
80
100
120
140
160
TIME (MINUTES)
ICOMP
VCOMP
CHARGE
CURRENT
INDUCTOR
CURRENT
FIGURE 8. CHARGE DISABLE
January 7, 2009
1.0%
0.5%
0.0%
-0.5%
-1.0%
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
FN6738.1