ISL88731A
Typical Operating Performance
DCIN = 20V, 3S2P Li-Battery, T = +25°C, unless otherwise noted.
A
5.15
1.0%
0.5%
0.0%
3.23
3.22
5.10
5.05
5.00
4.95
3.21
3.20
3.19
3.18
3.17
-0.5%
-1.0%
4.90
4.85
0
20
40
60
80
100
0
50
100
150
200
I VREF (µA)
VDDP LOAD CURRENT (mA)
FIGURE 4. VREF LOAD REGULATION
FIGURE 3. VDD LOAD REGULATION
3.5
3.0
2.5
2.0
1.5
1.0
15
13.0
12.5
12.0
10
5
VCHG (V)
0
-5
11.5
11.0
-10
10.5
10.0
0.5
0.0
ICHG (A)
-15
1
2
3
4
5
6
7
8
0
20
40
60
80
100
120
140
160
ADAPTER CURRENT (A)
TIME (MINUTES)
FIGURE 6. TYPICAL CHARGING VOLTAGE AND CURRENT
FIGURE 5. ICM ACCURACY vs AC-ADAPTER CURRENT
VCOMP
ICOMP
ICOMP
VCOMP
CHARGE
CURRENT
CHARGE
CURRENT
INDUCTOR
CURRENT
INDUCTOR
CURRENT
FIGURE 8. CHARGE DISABLE
FIGURE 7. CHARGE ENABLE
FN6738.0
July 23, 2008
6
INTERSIL [ Intersil ]
