ISL6257 Datasheet, PDF (4/22 Pages) Intersil Corporation – Highly Integrated Narrow VDC Battery Charger for Notebook Computers

ISL6257
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
Input Bias Current at CSIN
0 < CSIN < DCIN, Guaranteed by design
0.10
1
µA
ADAPTER CURRENT LIMIT THRESHOLD
CSIP to CSIN Full-Scale Current Sense
Voltage
ACLIM = VREF
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 VFB
to VCOMP
240
µA/V
CURRENT REGULATION ERROR AMPLIFIER
Charging Current Error Amplifier
Transconductance
from V_CA2 to ICOMP
50
µA/V
Adapter Current Error Amplifier
Transconductance
from V_CA1 to ICOMP
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
MOSFET DRIVER
BGATE Pull-Up Current
CSIP - BGATE = 3V
10
30
45
mA
BGATE Pull-Down Current
CSIP - BGATE = 5V
2.7
4.0
5.0
mA
CSIP - BGATE Voltage High
8
9.6
11
V
CSIP - BGATE Voltage Low
-50
0
50
mV
DCIN - CSON Threshold for CSIP-BGATE DCIN = 12V, CSON Rising
Going High
-100
0
100
mV
DCIN - CSON Threshold Hysteresis
250
300
400
mV
SGATE Pull-Up Current
CSIP - SGATE = 3V
7
12
15
mA
SGATE Pull-Down Current
CSIP - SGATE = 5V
50
160
370
µA
CSIP - SGATE Voltage High
8
9
11
V
CSIP - SGATE Voltage Low
-50
0
50
mV
CSIP - CSIN Threshold for CSIP - SGATE
Going High
2.5
8
13
mV
CSIP - CSIN Threshold Hysteresis
1.3
5
8
mV
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
4
FN9288.2
January 17, 2007