ISL6255_14 Datasheet, PDF (6/22 Pages) Intersil Corporation – Highly Integrated Battery Charger with Automatic Power Source Selector for Notebook Computers

ISL6255, ISL6255A
Electrical Specifications
DCIN = CSIP = CSIN = 18V, CSOP = CSON = 12V, ACSET = DCSET = 1.5V, ACLIM = VREF,
VADJ = Floating, EN = VDD = 5V, BOOT-PHASE = 5.0V, GND = PGND = 0V, C_VDD = 1µF, I_VDD = 0mA,
T_A = -10°C to +100°C, T_J ≤ 125°C, unless otherwise noted. (Continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
DCPRN Leakage Current
DCPRN = 5V
-0.5
0.5
µA
ICM Output Accuracy
(Vicm = 19.9 x (Vcsip-Vcsin))
CSIP-CSIN = 100mV
CSIP-CSIN = 75mV
-3
0
+3
%
-4
0
+4
%
CSIP-CSIN = 50mV
-5
0
+5
%
Thermal Shutdown Temperature
150
°C
Thermal Shutdown Temperature Hysteresis
25
°C
NOTE:
6. This is the sum of currents in these pins (CSIP, CSIN, BGATE, BOOT, UGATE, PHASE, CSOP, CSON) all tied to 16.8V. No current in pins EN,
ACSET, DCSET, VADJ, CELLS, ACLIM, CHLIM.
Typical Operating Performance DCIN = 20V, 4S2P Li-Battery, T_A = 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
6
FN9203.2
May 23, 2006