ISL6441IR Intersil, ISL6441IR Datasheet - Page 5

• Manufacturer Part Number: ISL6441IR
• Description: IC CTRLR SGL/STEP DOWN PWM 28QFN
• Manufacturer: Intersil

Specifications of ISL6441IR

• Applications: Power Supplies
• Current - Supply: 2mA
• Voltage - Supply: 5.6 V ~ 24 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-QFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Absolute Maximum Ratings
Supply Voltage (VCC_5V Pin) . . . . . . . . . . . . . . . . . . . . -0.3V to +7V
Input Voltage (VIN Pin) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+27V
BOOT1, 2 and UGATE1, 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . +35V
PHASE1, 2 and ISEN1, 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . +27V
BOOT1, 2 with Respect to PHASE1, 2 . . . . . . . . . . . . . . . . . . +6.5V
UGATE1, 2. . . . . . . . . . . .(PHASE1, 2 - 0.3V) to (BOOT1, 2 + 0.3V)
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:
Electrical Specifications
VIN SUPPLY
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 7)
SYNC Input Rise/Fall Time (Note 7)
SYNC Frequency Range
SYNC Input HIGH Level
SYNC Input LOW Level
SYNC Input Minimum Pulse Width (Note 7)
SYNC Output HIGH Level
1. θ
2. For θ
Tech Brief TB379.
JA
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
JC
, the “case temp” location is the center of the exposed metal pad on the package underside.
PARAMETER
5
Recommended operating conditions unless otherwise noted. Refer to “Block Diagram” on page 3 and “Typical
Application Schematic” on page 4. V
values are at T
specified. Temperature limits established by characterization and are not production tested.
A
= +25°C. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise
VIN = VCC_5V
V
V
SD1 = SD2 = GND
V
V
IN
IN
IN
IN
> 5.6V, I
= 12V
= 12V
= 5V
TEST CONDITIONS
ISL6441
L
= 20mA
IN
= 5.6V to 24V, or VCC_5V = 5V ±10%, T
Thermal Information
Thermal Resistance (Typical)
Maximum Junction Temperature (Plastic Package) -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) . . . . . . . .
VCC - 0.6V
MIN
4.25
3.95
1.25
-1.0
5.6
4.5
4.5
5.1
3.5
60
10
-
-
-
-
-
-
-
-
0.625
TYP
4.45
5.0
5.0
2.0
0.8
4.2
1.4
1.5
1.0
5.6
12
50
-
-
-
-
-
-
-
A
= -40°C to +85°C, Typical
θ
JA
MAX
1.55
10.0
375
5.6
5.5
4.0
1.0
4.5
4.4
6.2
1.5
24
(°C/W)
34
-
-
-
-
-
-
-
-
θ
May 26, 2009
JC
UNITS
MHz
MHz
mA
mA
µA
ns
ns
%
FN9197.3
V
V
V
V
V
V
V
V
V
V
V
V
(°C/W)
5