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ISL8023 View Datasheet(PDF) - Intersil

Part Name
Description
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ISL8023 Datasheet PDF : 20 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
ISL8023, ISL8024
Absolute Maximum Ratings (Reference to GND)
VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6.5V (DC) or 7V (20ms)
EN, FS, PG, SYNC, VFB . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to VIN + 0.3V
PHASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -3V (100ns)/(DC) to 6.5V (DC)
COMP, SS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 2.7V
Recommended Operating Conditions
VIN Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 5.5V
Load Current Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0A to 4A
Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C
Thermal Information
Thermal Resistance
θJA (°C/W) θJC (°C/W)
16 LD TQFN Package (Notes 4, 5) . . . . . . .
45
6.5
Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . .-55°C to +125°C
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:
4. θJA 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.
5. θJC, “case temperature” location is at the center of the exposed metal pad on the package underside.
Electrical Specifications Unless otherwise noted, all parameter limits are established over the recommended operating conditions and
the typical specification are measured at the following conditions: TA = -40°C to +85°C, VIN = 3.6V, EN = VIN, unless otherwise noted. Typical values are
at TA = +25°C. Boldface limits apply over the operating temperature range, -40°C to +85°C
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 6) TYP (Note 6) UNITS
INPUT SUPPLY
VIN Undervoltage Lockout Threshold
VUVLO
Rising, no load
Falling, no load
2.5
2.7
V
2.2
2.4
V
Quiescent Supply Current
IVIN SYNC = GND, no load at the output
SYNC = GND, no load at the output and no
switches switching
50
µA
50
60
µA
Shut Down Supply Current
OUTPUT REGULATION
SYNC = VIN, FS = 1MHz, no load at the output
ISD SYNC = GND, VIN = 5.5V, EN = low
8
15
mA
5
7
µA
Reference Voltage - ISL8023IRZ, ISL8024IRZ
VFB Bias Current - ISL8023IRZ, ISL8024IRZ
Line Regulation
Soft-Start Ramp Time Cycle
VREF
IVFB
VFB = 0.75V
VIN = VO + 0.5V to 5.5V (minimal 2.7V)
SS = SGND
0.595 0.600 0.605
V
0.1
µA
0.2
%/V
1
ms
Soft-Start Charging Current
OVERCURRENT PROTECTION
ISS VSS = 0.1V
1.2
1.6
2.0
µA
Current Limit Blanking Time
tOCON
17
Clock
pulses
Overcurrent and Auto Restart Period
Positive Peak Current Limit
tOCOFF
IPLIMIT
4A application
3A application
8
SS cycle
5.2
6.5
7.8
A
3.9
4.8
5.9
A
Peak Skip Limit
ISKIP
4A application (test at 3.6V)
3A application (test at 3.6V)
0.9
1.2
1.5
A
0.65
0.9
1.15
A
Zero Cross Threshold
-200
200
mA
Negative Current Limit
INLIMIT
-3.0
-2.4
-1.8
A
6
FN7812.2
May 17, 2012
 

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