ISL6252 Datasheet, PDF (7/25 Pages) Intersil Corporation – Highly Integrated Battery Charger Controller for Notebook Computers

ISL6252, ISL6252A
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. 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
OSCILLATOR
Frequency
245
300
355
kHz
PWM Ramp Voltage (peak-peak)
CSIP = 18V
1.6
V
CSIP = 11V
1
V
SYNCHRONOUS BUCK REGULATOR
Maximum Duty Cycle
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
1.0
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
1.0
1.8
Ω
LGATE Sink Current
VDDP-PGND = 5V, LGATE = 2.5V
1.8
A
Dead Time
Falling UGATE to rising LGATE or
10
falling LGATE to rising UGATE
30
ns
CHARGING CURRENT SENSING AMPLIFIER
Input Common-Mode Range
0
18
V
Input Bias Current at CSOP
5 < CSOP < 18V
0.25
2
µA
Input Bias Current at CSON
5 < CSON < 18V
75
100
µA
CHLIM Input Voltage Range
0
3.6
V
ISL6252
CSOP to CSON Full-Scale Current Sense
Voltage
ISL6252: CHLIM = 3.3V
ISL6252: CHLIM = 2.0V
ISL6252: CHLIM = 0.2V
160
165
170
mV
95
100
105
mV
5.0
10
15.0
mV
ISL6252A
CSOP to CSON Full-Scale Current Sense
Voltage
ISL6252A: CHLIM = 3.3V
ISL6252A: CHLIM = 2.0V
ISL6252A: CHLIM = 0.2V
161.7
165
168.3
mV
97
100
103
mV
7.5
10
12.5
mV
ISL6252 CSOP to CSON Full-Scale
Current Sense Voltage Formula
Charge current limit mode
0.2V < CHLIM < 3.3V
CHLIM*50
-5
CHLIM*50
mV
+5
ISL6252A CSOP to CSON Full-Scale
Current Sense Voltage Formula
Charge current limit mode
0.2V < CHLIM < 3.3V
CHLIM*49.72
- 2.4
CHLIM*50.28 mV
+ 2.4
CHLIM Input Bias Current
CHLIM = GND or 3.3V, DCIN = 0V
-1
1
µA
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
7
FN6498.3
August 25, 2010