ISL6253 Datasheet, PDF (4/22 Pages) Intersil Corporation – Highly Integrated Battery Charger for Notebook Computers

ISL6253
Electrical Specifications
DCIN = CSIP = CSIN = 18V, CSOP = CSON = 12V, ACSET = DCSET = 1.5V, VREF = ACLIM = CHLIM,
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
DCSET Input Bias Current Hysteresis
2
3.4
4.8
µA
DCSET Input Bias Current
DCSET ≥ 1.26V
2
3.4
4.8
µA
DCSET Input Bias Current
DCSET < 1.26V
-1
0
1
µA
OSCILLATOR
Frequency
240
300
360
kHz
PWM Ramp Voltage (peak-peak)
CSIP = 18V
1.4
1.55
1.7
V
CSIP = 11V
0.8
0.9
1.0
V
SYNCHRONOUS BUCK REGULATOR
Maximum Duty Cycle
300kHz
97
99
99.6
%
UGATE Pull-up Resistance
BOOT-PHASE = 5V, 500mA source current
1.8
3.0
Ω
UGATE Source Current
BOOT-PHASE = 5V, BOOT-UGATE = 2.5V
1.0
A
UGATE Pull-down Resistance
BOOT-PHASE = 5V, 500mA sink current
0.9
1.8
Ω
UGATE Sink Current
BOOT-PHASE = 5V, UGATE-PHASE = 2.5V
1.8
A
LGATE Pull-up Resistance
VDDP-PGND = 5V, 500mA source current
1.8
3.0
Ω
LGATE Source Current
VDDP-PGND = 5V, VDDP-LGATE = 2.5V
1.0
A
LGATE Pull-down Resistance
VDDP-PGND = 5V, 500mA sink current
0.9
1.8
Ω
LGATE Sink Current
VDDP-PGND = 5V, LGATE = 2.5V
1.8
A
CHARGING CURRENT SENSING AMPLIFIER
Input Common Mode Range
0
18
V
Input Offset Voltage
Guarantee by design
-3
0
3
mV
Input Bias Current at CSOP
0 < CSOP < 18V
10
20
µA
Input Bias Current at CSON
0 < CSON < 18V
300
425
µA
CSOP to CSON Input Full Scale Sense Voltage
CHLIM = 3.3V
123
127
131
mV
CHLIM = VREF
96
100
104
mV
CHLIM = FLOAT
61
65
69
mV
CHLIM = GND
26
30
34
mV
CSOP to CSON Input Full Scale Sense Voltage in Trickle CHLIM = 3.3V
Charge Mode
CHLIM = VREF
6
8.9
12.0
mV
4.0
7.5
11.0
mV
CHLIM = FLOAT
2.5
5.6
9.0
mV
CHLIM = GND
1.5
3.7
7.0
mV
Trickle Charge Threshold Voltage
CSON Rising
3.0
3.1
3.2 V/CELL
Hysteresis
20
100
180 mV/CELL
CHLIM Input Bias Current
CHLIM = GND or VREF
-25
25
µA
ADAPTER CURRENT SENSING AMPLIFIER
Input Common Mode Range
7
25
V
Input Offset Voltage
Guarantee by design
-2
2
mV
Input Bias Current at CSIP
0 < CSIP < DCIN
325
475
µA
Input Bias Current at CSIN
0 < CSIN < DCIN
1
10
µA
ADAPTER CURRENT LIMIT THRESHOLD
CSIP to CSIN Input Full Scale Sense Voltage
ACLIM = VREF
100
103
106
mV
ACLIM = Float
75
78
81
mV
ACLIM = GND
50
53
56
mV
4