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ISL6236A Datasheet, PDF (6/37 Pages) Intersil Corporation – High-Efficiency, Quad-Output, Main Power Supply Controllers for Notebook Computers
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ISL6236A
Electrical Specifications
PARAMETER
No load on LDO, OUT1, OUT2, VREF3, and REF, VIN = 12V, EN2 = EN1 = VCC, VBYP = 5V, PVCC = 5V,
VEN_LDO = 5V, TA = -40°C to +100°C, unless otherwise noted. Typical values are at TA = +25°C. (Continued)
CONDITIONS
MIN
(Note 4)
TYP
MAX
(Note 4) UNITS
INPUTS AND OUTPUTS
FB1 Input Voltage
Low level
0.3
V
High level
VCC - 1.0
V
REFIN2 Input Voltage
OUT2 Dynamic Range, VOUT2 = VREFIN2
Fixed OUT2 = 1.05V
0.5
2.50
V
3.0
VCC - 1.1 V
Fixed OUT2 = 3.3V
VCC - 1.0
V
LDOREFIN Input Voltage
Fixed LDO = 5V
0.30
V
LDO Dynamic Range, VLDO = 2 x VLDOREFIN
Fixed LDO = 3.3V
0.35
VCC - 1.0
2.25
V
V
SKIP Input Voltage
Low level (SKIP)
0.8
V
Float level (ULTRASONIC SKIP)
1.7
2.3
V
High level (PWM)
2.4
V
TON Input Voltage
Low level
0.8
V
Float level
1.7
2.3
V
High level
2.4
V
EN1, EN2 Input Voltage
Clear fault level/SMPS off level
0.8
V
Delay start level
1.7
2.3
V
SMPS on level
2.4
V
EN LDO Input Voltage
Rising edge
1.2
1.6
2.0
V
Falling edge
0.94
1.00
1.06
V
Input Leakage Current
INTERNAL BOOT DIODE
VtON = 0V or 5V
VEN = VEN LDO = 0V or 5V
VSKIP = 0V or 5V
VFB1 = VSECFB = 0V or 5V
VREFIN = 0V or 2.5V
VLDOREFIN = 0V or 2.75V
-1
+1
µA
-0.1
+0.1
µA
-1
+1
µA
-0.2
+0.2
µA
-0.2
+0.2
µA
-0.2
+0.2
µA
VD Forward Voltage
IBOOT LEAKAGE Leakage Current
MOSFET DRIVERS
PVCC - VBOOT, IF = 10mA
VBOOT = 30V, PHASE = 25V, PVCC = 5V
0.65
0.8
V
500
nA
UGATE Gate-Driver Sink/Source Current UGATE1, UGATE2 forced to 2V
2
A
LGATE Gate-Driver Source Current
LGATE1 (source), LGATE2 (source), forced to 2V
1.7
A
LGATE Gate-Driver Sink Current
LGATE1 (sink), LGATE2 (sink), forced to 2V
3.3
A
UGATE Gate-Driver ON-resistance
BOOT_ - PHASE_ forced to 5V (Note 3)
1.5
4.0
Ω
LGATE Gate-Driver ON-resistance
LGATE, high state (pull-up) (Note 3)
2.2
5.0
Ω
LGATE, low state (pull-down) (Note 3)
0.6
1.5
Ω
Dead Time
LGATE Rising
15
20
35
ns
UGATE Rising
20
30
50
ns
OUT1, OUT2 Discharge ON-resistance
25
40
Ω
6
FN6453.3
March 18, 2008
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