ISL6842 Datasheet, PDF (4/9 Pages) Intersil Corporation – Improved Industry Standard Single Ended Current Mode PWM Controller

ISL6842, ISL6843, ISL6844, ISL6845
Absolute Maximum Ratings
Supply Voltage, V_DD . . . . . . . . . . . . . . . . . . . GND - 0.3V to +20.0V
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 MIL-STD-883 Method 3015.7) . . .2000V
Charged Device Model (Per EOS/ESD DS5.3, 4/14/93) . . .1000V
Operating Conditions
Temperature Range
ISL684xIx . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40^oC to 105^oC
Supply Voltage Range (Typical)
ISL6843/5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9V-16V
ISL6842/4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V-18V
Thermal Information
Thermal Resistance (Typical, Note 1)
θ_JA (^oC/W)
SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
100
MSOP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . .
130
Maximum Junction Temperature . . . . . . . . . . . . . . . -55^oC to 150^oC
Maximum Storage Temperature Range . . . . . . . . . -65^oC to 150^oC
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . .300^oC
(SOIC- 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.
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 with respect to GND.
Electrical Specifications
Recommended operating conditions unless otherwise noted. Refer to Block Diagram and Typical Application
schematic.
T_A = 25^oC
V_DD
=
15V
(Note
6),
Rt
=
10kΩ,
Ct
=
3.3nF,
T_A
=
-40
to
105^oC
(Note
3),
Typical
values
are
at
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
UNDERVOLTAGE LOCKOUT
START Threshold (ISL6843, ISL6845)
7.8
8.4
9.0
V
START Threshold (ISL6842, ISL6844)
13.3
14.3
15.3
V
STOP Threshold (ISL6843, ISL6845)
6.7
7.2
7.7
STOP Threshold (ISL6842, ISL6844)
8.0
8.8
9.6
V
Hysteresis (ISL6843, ISL6845)
-
0.8
-
V
Hysteresis (ISL6842, ISL6844)
-
5.4
-
V
Start-Up Current, I_DD
Operating Current, I_DD
Operating Supply Current, I_D
REFERENCE VOLTAGE
V_DD < START Threshold
(Note 4)
Includes 1nF GATE loading
-
60
100
µA
-
3.3
4.0
mA
-
4.1
5.5
mA
Overall Accuracy
Long Term Stability
Fault Voltage
Over line (V_DD = 12V to 18V), load, 4.925
5.000
5.050
V
temp
T_A = 125^oC, 1000 hours (Note 5)
-
5
-
mV
4.40
4.65
4.85
V
VREF Good Voltage
4.60
4.80
VREF-0.05
V
Hysteresis
50
165
250
mV
Current Limit, Sourcing
-20
-
-
mA
Current Limit, Sinking
5
-
-
mA
CURRENT SENSE
Input Bias Current
CS Offset Voltage
COMP to PWM Comparator Offset Voltage
Input Signal, Maximum
V_CS = 1V
V_CS = 0V (Note 5)
V_CS = 0V (Note 5)
-1.0
-
1.0
µA
95
100
105
mV
0.80
1.15
1.30
V
0.91
0.97
1.03
V
4