ISL6256 Datasheet, PDF (8/26 Pages) Intersil Corporation – Highly Integrated Battery Charger with Automatic Power Source Selector for Notebook Computers

ISL6256, ISL6256A
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. Boldface limits apply over the
operating temperature range, -10°C to +100°C. (Continued)
PARAMETER
TEST CONDITIONS
MIN
MAX
(Note 8)
TYP
(Note 8)
UNITS
CHLIM Power-down Mode Threshold
Voltage
CHLIM rising
80
88
95
mV
CHLIM Power-down Mode Hysteresis
Voltage
15
25
40
mV
ADAPTER CURRENT SENSING AMPLIFIER
Input Common-Mode Range
7
25
V
Input Bias Current at CSIP and CSIN
Combined
CSIP = CSIN = 25V
100
130
µA
Input Bias Current at CSIN
0 < CSIN < DCIN
0.10
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
CSON to VCOMP
CELLS = VDD
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
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
8
FN6499.3
September 14, 2010