ISL6443A Intersil Corporation, ISL6443A Datasheet - Page 5

• Manufacturer Part Number: ISL6443A
• Description: Step-Down PWM and Single Linear Controller
• Manufacturer: Intersil Corporation

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Absolute Maximum Ratings
Supply Voltage (VCC_5V Pin) . . . . . . . . . . . . . . . . . . . . -0.3V to +7V
Input Voltage (V
BOOT1, 2 and UGATE1, 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .+35V
PHASE1, 2 and ISEN1, 2
BOOT1, 2 with Respect to PHASE1, 2 . . . . . . . . . . . . . . . . . . +6.5V
UGATE1, 2. . . . . . . . . . . .(PHASE1, 2 - 0.3V) to (BOOT1, 2 + 0.3V)
ESD Rating
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.
NOTE:
Electrical Specifications
VIN SUPPLY
Input Voltage Range
Input Voltage Range
VCC_5V SUPPLY (Note 3)
Input Voltage
Output Voltage
Maximum Output Current
SUPPLY CURRENT
Shutdown Current (Note 4)
Operating Current (Note 5)
REFERENCE SECTION
Nominal Reference Voltage
Reference Voltage Tolerance
POWER-ON RESET
Rising VCC_5V Threshold
Falling VCC_5V Threshold
OSCILLATOR
Total Frequency Variation
Peak-to-Peak Sawtooth Amplitude (Note 6)
Ramp Offset (Note 6)
SYNC Input Rise/Fall Time (Note 6)
SYNC Frequency Range
SYNC Input HIGH Level
SYNC Input LOW Level
1. θ
2. θ
Human Body Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2000V
Machine Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .200V
. . . . . . . . . . . . . . . . . . . . .-5V (<100ns, 10µJ)/-0.3V (DC) to +27V
the “case temp” location is the center of the exposed metal pad on the underside of the package. See Tech Brief TB379.
JC
JA
is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. For θ
IN
Pin). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+27V
PARAMETER
5
Recommended operating conditions unless otherwise noted. Refer to “Block Diagram” on page 3 and “Typical
Application Schematic” on page 4. V
Typical values are at T
V
V
V
SD1 = SD2 = GND
V
V
IN
IN
IN
IN
IN
A
= VCC (Note 3)
> 5.6V, I
= 12V
= 12V
= 5V
= +25°C.
TEST CONDITIONS
ISL6443A
L
= 20mA
IN
= 5.6V to 24V, or VCC_5V = 5V ±10%, T
Thermal Information
Thermal Resistance (Typical)
Maximum Junction Temperature . . . . . . . . . . . . . . .-55°C to +150°C
Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
28 Lead QFN (Notes 1, 2) . . . . . . . .
28 Lead TSSOP (Note 1) . . . . . . . . .
MIN
4.25
3.95
4.16
-1.0
260
5.6
4.5
4.5
4.5
3.5
60
-
-
-
-
-
-
-
-
0.667
TYP
4.45
300
5.0
5.0
5.0
2.0
0.8
4.2
1.6
1.0
5.0
4.8
12
50
-
-
-
-
A
= -40°C to +85°C (Note 6),
θ
JA
MAX
5.44
375
340
5.6
5.6
5.5
4.0
1.0
4.5
4.4
1.5
24
(°C/W)
36
75
-
-
-
-
-
-
-
December 7, 2007
θ
JC
UNITS
MHz
kHz
mA
mA
μA
ns
%
FN6600.1
NA
V
V
V
V
V
V
V
V
V
V
V
V
(°C/W)
4
JA