2
FN9198.4
April 17, 2009
Absolute Maximum Ratings (T
A
= +25°C) Thermal Information
Maximum Pin Voltages, all pins except below . . . . . . . . . . . . . . 6.5V
LX1, LX2, VSUP, NOUT, DELB, C2- . . . . . . . . . . . . . . . . . . . .24V
C1- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14V
VIN1, VINL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.5V
DRN, COM, POUT, C1+, C2+ . . . . . . . . . . . . . . . . . . . . . . . . .36V
CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21V
Recommended Operating Conditions
Input Voltage Range, VIN 4V to 14V
Boost Output Voltage Range, A
VDD
+20V
V
ON
Output Range, V
ON
+15V to +32V
V
OFF
Output Range, V
OFF
-15V to -5V
Logic Output Voltage Range, V
LOGIC
+1.5V to +3.3V
Input Capacitance, C
IN
2x10µF
Boost Inductor, L1 3.3µH-10µH
Output Capacitance, C
OUT
2x22µF
Buck Inductor, L23.3µH to10µH
Operating Ambient Temperature Range -40°C to +105°C
Operating Junction Temperature -40°C to +125°C
Thermal Resistance
JA
(°C/W)
JC
(°C/W)
6x6 QFN Package (Notes 1, 2) . . . . . . 30 2.5
Maximum Junction Temperature (Plastic Package) . . . . . . . +150°C
Maximum Storage Temperature Range. . . . . . . . . .-65°C to +150°C
Power Dissipation
T
A
25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.3W
T
A
= +70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.8W
T
A
= +85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.3W
T
A
= +100°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.8W
Pb-Free Reflow Profile. . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
NOTES:
1.
JA
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
Tech Brief TB379.
2. For
JC
, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications V
IN
= 12V, V
BOOST
= V
SUP
= 15V, V
ON
= 25V, V
OFF
= -8V, over-temperature from -40°C to +105°C, unless
otherwise stated. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise
specified. Temperature limits established by characterization and are not production tested.
PARAMETER DESCRIPTION CONDITIONS MIN TYP MAX UNIT
SUPPLY PINS
V
IN
Supply Voltage (VIN1) 4 12 14 V
V
INL
Logic Supply Voltage 4 12 14 V
V
SUP
Charge Pumps and V
ON
Slice Positive
Supply
420V
I
VIN
Quiescent Current into V
IN
Enabled, No switching 3 5 mA
Disabled 25 50 µA
I
INL
Logic Supply Current Enabled, No switching 0.25 2 mA
Disabled 1 25 µA
I
SUP
V
SUP
Supply Current Enabled, No Switching and VPout = V
SUP
1mA
Disabled 1 10 µA
VLOR Undervoltage Lockout Threshold V
DC
rising 3.85 4 V
VLOF Undervoltage Lockout Threshold V
DC
falling 3.3 3.45 V
V
REF
Reference Voltage T
A
= +25°C 1.18 1.205 1.225 V
1.177 1.205 1.228 V
F
OSC
Oscillator Frequency 1020 1200 1380 kHz
A
VDD
BOOST
D
MIN
Minimum Duty Cycle 20 25 %
D
MAX
Maximum Duty Cycle 84 %
ISL97650