ISL6256 Datasheet, PDF (4/26 Pages) Intersil Corporation – Highly Integrated Battery Charger with Automatic Power Source Selector for Notebook Computers

ISL6256, ISL6256A
AC ADAPTER
Q3
R8
130k
1%
VDD ^Q5 _C8
R9
10.2k
1%
TO HOST
CONTROLLER
C8
0.1µF DDCCININ
SGATE
ACASCESTET
CCSSIIPP
C7
1µF
3.3V
R5
100k
C6 _6.8nF
R10
4.7Ω
C9
1µF
IISSLL66225566
ISIISSLL6256A
VDVDDPP
CCSSIINN
BBGGAATTEE
VDVDD
BBOOOOTT
ACAPCRPNRN
ICICOOMMPP
UUGGAATTEE
PPHHAASSEE
R21 2.2Ω
C2
0.1µF
R2
20mΩ
R22 22Ω
VDDP _C1:10µF
D2
C4
Q1
0.1µF
R6 C5 _10nF
4.7k _FLOATING
4.2V/CELL
CHARGE
ENABLE
VCVOCOMMP P
VAVADDJ J
LLGGAATTEE
PPGGNNDD
EENN
CCSSOOPP
ACACLILMIM
CCSSOONN
D1
Q2
OPTIONAL
R11 22Ω
C3
0.047µF
VREF
VRVREFEF
R12
2.6A CHARGE LIMIT
20k 1% _{253mA TRICKLE CHARGE}
R13 R11
CHCHLILMIM
1.87k 130k
TRICKLE ^1%
1%
CHARGE
Q6
CCEELLLLSS
R12 22Ω
VDD
4 CELLS
IICCMM
R7: 100Ω
GGNNDD
C11
3300pF
Q4
L
4.7µH
R1
20mΩ
C10
22µF
SYSTEM LOAD
VDD
R23
10k
D3
1N914
CSON
BAT+
BATTERY
PACK
BAT-
FIGURE 2. ISL6256, ISL6256A TYPICAL APPLICATION CIRCUIT WITH FIXED CHARGING PARAMETERS
4
FN6499.3
September 14, 2010