ISL8112 Intersil Corporation, ISL8112 Datasheet - Page 3

• Manufacturer Part Number: ISL8112
• Description: Main Power Supply Controllers
• Manufacturer: Intersil Corporation

Electrical Specifications
Absolute Voltage Ratings
VIN, EN_LDO to GND . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +27V
BOOT_ to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +33V
BOOT_ to PH_ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6V
VCC, EN_, MODE, FS,
PVCC, PGOOD_ to GND . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6V
LDO, FB1, OUT2REF, LDOREF to GND . . . . -0.3V to (VCC+0.3V)
VSEN_, VREF2, VREF1 to GND . . . . . . . . . . . -0.3V to (VCC+0.3V
UG_ to PH_ . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to (PVCC + 0.3V)
ILIM_ to GND . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to (VCC + 0.3V)
LG_, BYP to GND . . . . . . . . . . . . . . . . . . . . -0.3V to (PVCC + 0.3V)
PGND to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to + 0.3V
LDO, VREF1, VREF2 Short Circuit to GND . . . . . . . . . . Continuous
VCC Short Circuit to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1s
LDO Current (Internal Regulator) Continuous . . . . . . . . . . . . 100mA
LDO Current (Switched Over to VSEN1) Continuous . . . . . +200mA
CAUTION: Stress above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational section of this specification is not implied.
NOTE:
MAIN SMPS CONTROLLERS
V
3.3V Output Voltage in Fixed Mode
1.05V Output Voltage in Fixed Mode
1.5V Output Voltage in Fixed Mode
5V Output Voltage in Fixed Mode
FB1 in Output Adjustable Mode
OUT2REF in Output Adjustable Mode
SMPS1 Output Voltage Adjust Range
SMPS2 Output Voltage Adjust Range
SMPS2 Output Voltage Accuracy
(Referred for OUT2REF)
DC Load Regulation
Line Regulation
Current-Limit Current Source
ILIM_ Adjustment Range
Current-Limit Threshold (Positive, Default)
1. θ
2. For θ
IN
Tech Brief TB379.
Input Voltage Range
JA
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
JC
, the “case temp” location is the center of the exposed metal pad on the package underside.
PARAMETER
3
Circuit of Figure 17, and Figure 18, no load on LDO, VSEN1, VSEN2, VREF2, and VREF1, VIN = 12V,
EN2 = EN1 = VCC, VBYP = 5V, PVCC = 5V, VEN_LDO = 5V, T
Typical values are at T
LDO in regulation
V
V
V
MODE = 5V
V
V
V
V
SMPS1
SMPS2
OUT2REF = 0.7V to 2.5V, MODE = VCC
Either SMPS, MODE = VCC, 0 to 5A
Either SMPS, MODE = VREF1, 0 to 5A
Either SMPS, MODE = GND, 0 to 5A
Either SMPS, 6V < V
Temperature = +25°C
ILIM_ = VCC, GND - PH_
(No temperature compensation)
IN
IN
IN
IN
IN
IN
IN
= 5.5V to 25V, FB1 = VCC, MODE = 5V
= 5.5V to 25V, FB1 = GND, MODE = 5V
= 5.5V to 25V, OUT2REF > (VCC - 1V), MODE = 5V
= LDO, VSEN1 < 4.43V
= 5.5V to 25V, 3.0 < OUT2REF < (VCC - 1.1V),
= 5.5V to 25V
= 5.5V to 25V
A
= +25°C.
ISL8112
CONDITIONS
IN
< 24V
Thermal Information
Thermal Resistance (Typical)
Operating Temperature Range . . . . . . . . . . . . . . . .-40°C to +100°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C
Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C
32 Ld QFN (Notes 1, 2) . . . . . . . . . . . . 32
A
= -40°C to +100°C, unless otherwise noted.
3.285
1.038
1.482
4.975
0.693
0.70
0.50
4.75
MIN
-1.0
5.5
4.5
0.7
0.2
93
θ
3.330
1.500
5.050
0.700
0.005
JA
TYP
1.05
-0.1
-1.7
-1.5
100
5
(°C/W)
3.375
1.062
1.518
5.125
0.707
MAX
2.50
5.50
2.50
5.25
107
5.5
1.0
25
2
November 21, 2006
θ
JC
UNITS
FN6396.0
3.0
(°CW)
%/V
mV
µA
%
%
%
%
V
V
V
V
V
V
V
V
V
V
V