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ISL6251HRZ-T View Datasheet(PDF) - Intersil

Part Name
Description
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ISL6251HRZ-T Datasheet PDF : 20 Pages
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ISL6251, ISL6251A
Typical Operating Performance DCIN = 20V, 4S2P Li-Battery, TA = 25°C, unless otherwise noted.
0.6
VDD=5.075V
EN=0
0.3
0
0.1
VREF=2.390V
0.08
0.06
0.04
-0.3
0.02
-0.6
0
8
16 24 32 40
LOAD CURRENT (mA)
FIGURE 1. VDD LOAD REGULATION
0
0
100
200
300
400
LOAD CURRENT (µA)
FIGURE 2. VREF LOAD REGULATION
10
9
8
7
6
5
4
3
2
1
0 10 20 30 40 50 60 70 80 90 100
CSIP-CSIN (mV)
FIGURE 3. ICM ACCURACY vs AC ADAPTER CURRENT
1
0 .9 6
0 .9 2
0 .8 8
0 .8 4
VCSON=12.6V
(3 CELLS)
VCSON=8.4V
2 CELLS
VCSON=16.8V
4 CELLS
0 .8
0 .76
0 0 .5 1 1.5 2 2.5 3 3 .5 4
CHARGE CURRENT (A)
FIGURE 4. SYSTEM EFFICIENCY vs CHARGE CURRENT
LOAD STEP: 0-4A
CHARGE CURRENT: 3A
AC ADAPTER CURRENT LIMIT: 5.15A
LOAD
CURRENT
5A/div
ADAPTER
CURRENT
5A/div
CHARGE
CURRENT
2A/div
BATTERY
VOLTAGE
2V/div
FIGURE 5. LOAD TRANSIENT RESPONSE
6
CSON
5V/div
EN
5V/div
INDUCTOR
CURRENT
2A/div
CHARGE
CURRENT
2A/div
FIGURE 6. CHARGE ENABLE AND SHUTDOWN
FN9202.2
May 10, 2006
 

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