ISL6251 Datasheet, PDF (5/20 Pages) Intersil Corporation – Low Cost Multi-Chemistry Battery Charger Controller

ISL6251, ISL6251A
Electrical Specifications
DCIN=CSIP=CSIN=18V, CSOP=CSON=12V, ACSET=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
ADAPTER CURRENT LIMIT THRESHOLD
CSIP to CSIN Full-Scale Current Sense ACLIM=VREF
Voltage
ACLIM=Float
97
100
103
mV
72
75
78
mV
ACLIM=GND
47
50
53
mV
ACLIM Input Bias Current
ACLIM=VREF
10
16
20
µA
ACLIM=GND
-20
-16
-10
µA
VOLTAGE REGULATION ERROR AMPLIFIER
Error Amplifier Transconductance from CELLS=VDD
CSON to VCOMP
30
µA/V
CURRENT REGULATION ERROR AMPLIFIER
Charging Current Error Amplifier
Transconductance
50
µA/V
Adapter Current Error Amplifier
Transconductance
50
µA/V
BATTERY CELL SELECTOR
CELLS Input Voltage for 4 Cell Select
4.3
V
CELLS Input Voltage for 3 Cell Select
2
V
CELLS Input Voltage for 2 Cell Select
2.1
4.2
V
LOGIC INTERFACE
EN Input Voltage Range
0
VDD
V
EN Threshold Voltage
Rising
1.030
1.06
1.100
V
Falling
0.985
1.000
1.025
V
Hysteresis
30
60
90
mV
EN Input Bias Current
EN=2.5V
1.8
2.0
2.2
µA
ACPRN Sink Current
ACPRN=0.4V
3
8
11
mA
ACPRN Leakage Current
ACPRN=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:
7. This is the sum of currents in these pins (CSIP, CSIN, BOOT, UGATE, PHASE, CSOP, CSON) all tied to 16.8V. No current in pins EN, ACSET,
VADJ, CELLS, ACLIM, CHLIM.
5
FN9202.1
June 17, 2005