6
FN6320.3
April 18, 2007
Absolute Maximum Ratings Thermal Information
Supply Voltage, V
DD
. . . . . . . . . . . . . . . . . . . . . GND -0.3V to +30V
OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND -0.3V to V
DD
+ 0.3V
Signal Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GND -0.3V to 6.0V
Peak GATE Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1A
ESD Classification
Human Body Model (Per JESD22-A114C.01) . . . . . . . . . . .2000V
Machine Model (Per EIA/JESD22-A115-A) . . . . . . . . . . . . . .200V
Charged Device Model (Per JESD22-C191-A) . . . . . . . . . .1000V
Operating Conditions
Temperature Range
ISL884xAAxZ . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +105°C
ISL884xAMxZ. . . . . . . . . . . . . . . . . . . . . . . . . . . .-55°C to +125°C
Supply Voltage Range (Typical, Note 2)
ISL884xA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9V to 30V
Thermal Resistance (Typical, Note 1) θ
JA
(°C/W)
SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
MSOP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Maximum Junction Temperature . . . . . . . . . . . . . . .-55°C to +150°C
Maximum Storage Temperature Range. . . . . . . . . .-65°C to +150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . +300°C
(SOIC, MSOP - Lead Tips Only)
CAUTION: Stresses 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 sections of this specification is not implied.
+150°C max junction temperature is intended for short periods of time to prevent shortening the lifetime. Constantly operated at +150°C may shorten the life of the part.
NOTES:
1. θ
JA
is measured with the component mounted on a high effective thermal conductivity test board in free air. See Technical Brief TB379 for details.
2. All voltages are with respect to GND.
Electrical Specifications ISL884xAA - Recommended operating conditions unless otherwise noted. Refer to Block Diagram and
Typical Application schematic onpage 3 and page 4. V
DD
= 15V, R
T
= 10kΩ, C
T
= 3.3nF, T
A
= -40 to +105°C
(Note 3). Typical values are at T
A
= +25°C
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
UNDERVOLTAGE LOCKOUT
START Threshold (ISL8840A, ISL8841A) 6.5 7.0 7.5 V
START Threshold (ISL8843A, ISL8845A) 8.0 8.4 9.0 V
START Threshold (ISL8842A, ISL8844A) (Note 6) 13.3 14.3 15.3 V
STOP Threshold (ISL8840A, ISL8841A) 6.1 6.6 6.9 V
STOP Threshold (ISL8843A, ISL8845A) 7.3 7.6 8.0 V
STOP Threshold (ISL8842A, ISL8844A) 8.0 8.8 9.6 V
Hysteresis (ISL8840A, ISL8841A) - 0.4 - V
Hysteresis (ISL8843A, ISL8845A) - 0.8 - V
Hysteresis (ISL8842A, ISL8844A) - 5.4 - V
Startup Current, I
DD
V
DD
< START Threshold - 90 125 μA
Operating Current, I
DD
(Note 4) - 2.9 4.0 mA
Operating Supply Current, I
D
Includes 1nF GATE loading - 4.75 5.5 mA
REFERENCE VOLTAGE
Overall Accuracy Over line (V
DD
= 12V to 30V), load,
temperature
4.925 5.000 5.050 V
Long Term Stability T
A
= +125°C, 1000 hours (Note 5) - 5 - mV
Current Limit, Sourcing -20 - - mA
Current Limit, Sinking 5--mA
CURRENT SENSE
Input Bias Current V
CS
= 1V -1.0 - 1.0 μA
CS Offset Voltage V
CS
= 0V (Note 5) 95 100 105 mV
COMP to PWM Comparator Offset Voltage V
CS
= 0V (Note 5) 0.80 1.15 1.30 V
ISL8840A, ISL8841A, ISL8842A, ISL8843A, ISL8844A, ISL8845A
