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ISL8033A View Datasheet(PDF) - Intersil

Part Name
Description
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ISL8033A Datasheet PDF : 18 Pages
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ISL8033, ISL8033A
Absolute Maximum Ratings (Reference to SGND)
VIN1,VIN2, VDD. . . . . . . . . . . . . . . . . . . . . . -0.3V to 6.5V (DC) or 7V (20ms)
LX1, LX2 . . . . . . . . . . . . . . . . . . .-1.5V (100ns)/-0.3V (DC) to 6.5V (DC) or 7V (20ms)
EN1, EN2, PG1, PG2, SYNC, ISET . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6.5V
FB1, FB2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 2.7V
NC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 0.3V
ESD Ratings
Human Body Model (Tested per JESD22-A114) . . . . . . . . . . . . . . . . . 4kV
Charged Device Model (Tested per JESD22-C101E). . . . . . . . . . . . . . 2kV
Machine Model (Tested per JESD22-A115). . . . . . . . . . . . . . . . . . . .0.3kV
Latch Up (Tested per JESD-78A; Class 2, Level A) . . . . . . . . . . . . . . 100mA
Thermal Information
Thermal Resistance (Typical)
θJA (°C/W) θJC (°C/W)
4x4 QFN Package (Notes 4, 5) . . . . . . . .
36
2
Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . .-55°C to +150°C
Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Recommended Operating Conditions
VIN Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.85V to 6V
Load Current Range per Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . 0A to 3A
Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . .-55°C to +125°C
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. For θJC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications Unless otherwise noted, the typical specifications are measured at the following conditions:
TA = -40°C to +85°C, VIN = 3.6V, EN1 = EN2 = VDD, L = 1.5µH, C1 = C2 = C4 = 2x22µF, IOUT1 = IOUT2 = 0A to 3A. 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 7) TYP (Note 7)
UNITS
INPUT SUPPLY
VIN Undervoltage Lockout Threshold
VUVLO Rising
Hysteresis
2.5 2.85
V
50 100
mV
Quiescent Supply Current
Shutdown Supply Current
OUTPUT REGULATION
IVDD SYNC = VDD, EN1 = EN2 = VDD,
FS = 1MHz, no load at the output
SYNC = VDD, EN1 = EN2 = VDD,
FS = 2.5MHz, no load at the output
ISD VDD = 6V, EN1 = EN2 = SGND
15
40
mA
30
70
mA
8
20
µA
FB1, FB2 Regulation Voltage
FB1, FB2 Bias Current
Load Regulation
VFB
IFB VFB = 0.75V
SYNC = VDD, output load from 0A to 3A
0.790 0.8 0.810
0.1
2
V
µA
mV/A
Line Regulation
VIN = VO + 0.5V to 6V (minimal 2.85V)
0.1
%/V
Soft-Start Ramp Time Cycle
1.5
ms
COMPENSATION
Error Amplifier Trans-Conductance
20
µA/V
Trans-Resistance
RT
0.18 0.2 0.22
Ω
OVERCURRENT PROTECTION
Dynamic Current Limit ON-time
Dynamic Current Limit OFF-time
tOCON
tOCOFF
17
Clock pulses
8
SS cycle
6
FN6854.2
March 24, 2011
 

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