isl88731a Intersil Corporation, isl88731a Datasheet - Page 6

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isl88731a

Manufacturer Part Number
isl88731a
Description
Smbus Level 2 Battery Charger
Manufacturer
Intersil Corporation
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
isl88731aHRZ
Manufacturer:
TI
Quantity:
190
Part Number:
isl88731aHRZ-T
Manufacturer:
INTERSIL
Quantity:
8 000
Typical Operating Performance
FIGURE 5. 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 3. VDD LOAD REGULATION
FIGURE 7. CHARGE ENABLE
2
CURRENT
CHARGE
20
VDDP LOAD CURRENT (mA)
3
ADAPTER CURRENT (A)
40
6
4
5
60
6
80
INDUCTOR
CURRENT
DCIN = 20V, 3S2P Li-Battery, T
7
VCOMP
ICOMP
100
8
ISL88731A
FIGURE 6. TYPICAL CHARGING VOLTAGE AND CURRENT
13.0
12.5
12.0
10.5
10.0
11.5
11.0
3.23
3.22
3.21
3.20
3.19
3.18
3.17
0
0
A
= +25°C, unless otherwise noted.
FIGURE 4. VREF LOAD REGULATION
20
FIGURE 8. CHARGE DISABLE
VCOMP
INDUCTOR
CURRENT
ICOMP
40
ICHG (A)
50
TIME (MINUTES)
60
I VREF (µA)
100
80
VCHG (V)
100
CURRENT
CHARGE
120
150
140
January 7, 2009
200
160
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
FN6738.1
1.0%
0.5%
0.0%
-0.5%
-1.0%

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