5
FN9057.6
September 15, 2015
Absolute Maximum Ratings Thermal Information
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+7V
Absolute Boot Voltage, V
BOOT
. . . . . . . . . . . . . . . . . . . . . . . +15.0V
Upper Driver Supply Voltage, V
BOOT
- V
PHASE
. . . . . . . . . . . +6.0V
Input, Output or I/O Voltage . . . . . . . . . . GND - 0.3V to VCC + 0.3V
Operating Conditions
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . +3.3V ±10%
Ambient Temperature Range . . . . . . . . . . . . . . . . . . .-40°C to +85°C
Junction Temperature Range. . . . . . . . . . . . . . . . . .-40°C to +125°C
Thermal Resistance
JA
(°C/W)
JC
(°C/W)
SOIC Package (Note 1) . . . . . . . . . . . . 67 N/A
QFN Package (Note 2). . . . . . . . . . . . . 35 5
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . +150°C
Maximum Storage Temperature Range . . . . . . . . . . -65°C to +150°C
Pb-Free Reflow Profile. . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
For Recommended soldering conditions see Tech Brief TB389.
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.
NOTE:
1.
JA
is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
2.
JA
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features.
JC,
the
“case temp” is measured at the center of the exposed metal pad on the package underside. See Tech Brief TB379.
3. Limits established by characterization and are not production tested.
Electrical Specifications Recommended Operating Conditions, Unless Otherwise Noted V
CC
= 3.3V±5% and T
A
= +25°C
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS
VCC SUPPLY CURRENT
Nominal Supply I
BIAS
6.1 6.9 7.7 mA
POWER-ON RESET
Rising CPVOUT POR Threshold POR Commercial 4.25 4.30 4.42 V
Industrial 4.10 4.30 4.50 V
CPVOUT POR Threshold Hysteresis 0.3 0.6 0.9 V
OSCILLATOR
Frequency f
OSC
IC = ISL6439C, Commercial 275 300 325 kHz
IC = ISL6439I, Industrial 250 300 340 kHz
IC = ISL6439AC, Commercial 554 600 645 kHz
IC = ISL6439AI, Industrial 524 600 650 kHz
Ramp Amplitude V
OSC
-1.5-V
P-P
REFERENCE
Reference Voltage Tolerance --1.5%
Nominal Reference Voltage V
REF
-0.800- V
Charge Pump
Nominal Charge Pump Output V
CPVOUT
V
VCC
= 3.3V, No Load - 5.1 - V
Charge Pump Output Regulation -2- %
ERROR AMPLIFIER
DC Gain Note 3 - 88 - dB
Gain-Bandwidth Product GBWP - 15 - MHz
Slew Rate SR - 6 - V/s
SOFT START
Soft Start Slew Rate Commercial 6.2 7.3 ms
Industrial 6.2 7.6 ms
ISL6439, ISL6439A
