4
FN6703.1
September 11, 2008
Absolute Maximum Ratings Thermal Information
Supply Voltage, V
DD
. . . . . . . . . . . . . . . . . . . GND - 0.3V to +20.0V
OUTA, OUTB . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to V
DD
Signal Pins. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GND - 0.3V to 5V
Peak GATE Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1A
Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +105°C
Supply Voltage Range (Typical). . . . . . . . . . . . . . . . . . . . 9V to 16V
Thermal Resistance (Typical, Note 1) θ
JA
(°C/W)
10 Lead MSOP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Maximum Junction Temperature . . . . . . . . . . . . . . .-55°C to +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
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. θ
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. All voltages are to be measured with respect to GND, unless otherwise specified.
Electrical Specifications Recommended operating conditions unless otherwise noted. Refer to Block Diagram on page 2 and Typical
Application schematic on page 3. 9V < V
DD
< 16V, R
TD
= 51.1kΩ, C
T
= 470pF, T
A
= -40°C to +105°C, Typical
values are at T
A
= +25°C; 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 TEST CONDITIONS MIN TYP MAX UNITS
SUPPLY VOLTAGE
Start-Up Current, I
DD
V
DD
< START Threshold - - 175 µA
Operating Current, I
DD
C
OUTA,B
= 1nF - 5 8.5 mA
UVLO START Threshold 5.9 6.3 6.6 V
UVLO STOP Threshold 5.3 5.7 6.3 V
Hysteresis -0.6- V
CURRENT SENSE
Current Limit Threshold 0.55 0.6 0.65 V
CS to OUT Delay (Note 3) - 35 - ns
CS Sink Current 810-mA
Input Bias Current -1 - 1 µA
PULSE WIDTH MODULATOR
Minimum Duty Cycle V
ERROR
< C
T
Offset - - 0 %
Maximum Duty Cycle C
T
= 470pF, R
TD
= 51.1kΩ -94-%
C
T
= 470pF, R
TD
= 1.1kΩ (Note 3) - 99 - %
V
ERR
to PWM Comparator Input Gain - 0.8 - V/V
C
T
to PWM Comparator Input Gain (Note 3) - 1 - V/V
SS to PWM Comparator Input Gain (Note 3) - 0.8 - V/V
OSCILLATOR
Charge Current T
A
= +25°C 143 156 170 µA
R
TD
Voltage 1.925 2 2.075 V
Discharge Current Gain 45 - 65 µA/µA
C
T
Valley Voltage 0.75 0.8 0.85 V
C
T
Peak Voltage 2.70 2.80 2.90 V
ISL6745A
