isl88731c Intersil Corporation, isl88731c Datasheet - Page 9

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isl88731c

Manufacturer Part Number
isl88731c
Description
Smbus Level 2 Battery Charger
Manufacturer
Intersil Corporation
Datasheet

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Typical Operating Performance
FIGURE 7. ICM ACCURACY vs AC-ADAPTER CURRENT
5.15
5.10
5.05
5.00
4.95
4.90
4.85
-10
-15
15
10
-5
5
0
0
1
FIGURE 5. VDD LOAD REGULATION
2
20
FIGURE 9. CHARGE ENABLE
CURRENT
CHARGE
VDDP LOAD CURRENT (mA)
AC-ADAPTER CURRENT (A)
3
40
4
9
5
60
6
80
7
INDUCTOR
CURRENT
VCOMP
ICOMP
100
8
ISL88731C
DCIN = 20V, 3S2P Li-Battery, T
noted.
FIGURE 8. TYPICAL CHARGING VOLTAGE AND
3.23
3.22
3.21
3.20
3.19
3.18
3.17
13.0
12.5
12.0
11.5
11.0
10.5
10.0
0
0
FIGURE 6. VREF LOAD REGULATION
20
CURRENT
FIGURE 10. CHARGE DISABLE
VCOMP
ICHG (A)
INDUCTOR
CURRENT
ICOMP
50
40
TIME (MINUTES)
60
I VREF (µA)
A
= +25°C, unless otherwise
100
80
100
VCHG (V)
CURRENT
CHARGE
150
120
September 9, 2010
140
200
160
FN6978.1
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
1.0%
0.5%
0.0%
-0.5%
-1.0%

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