ISL6443AIRZ Intersil, ISL6443AIRZ Datasheet - Page 5

• Manufacturer Part Number: ISL6443AIRZ
• Description: IC CTRLR SGL/STEP DOWN PWM 28QFN
• Manufacturer: Intersil

Specifications of ISL6443AIRZ

• 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
• Rohs Compliant: YES
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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)
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
Input Voltage Range
VCC_5V SUPPLY (Note 4)
Input Voltage
Output Voltage
Maximum Output Current
SUPPLY CURRENT
Shutdown Current (Note 5)
Operating Current (Note 6)
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 7)
Ramp Offset (Note 7)
SYNC Input Rise/Fall Time (Note 7)
SYNC Frequency Range
SYNC Input HIGH Level
SYNC Input LOW Level
1. θ
2. θ
3. For θ
. . . . . . . . . . . . . . . . . . . . .-5V (<100ns, 10µJ)/-0.3V (DC) to +27V
Tech Brief TB379
JA
JA
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
JC
, the “case temp” location is the center of the exposed metal pad on the package underside.
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
otherwise specified. Temperature limits established by characterization and are not production tested.
V
V
V
SD1 = SD2 = GND
V
V
IN
IN
IN
IN
IN
A
= VCC (Note 4)
> 5.6V, I
= 12V
= 12V
= 5V
= +25°C. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless
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 7),
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
-
-
-
-
-
-
-
θ
JC
UNITS
June 2, 2008
MHz
kHz
mA
mA
µA
ns
%
FN6600.2
NA
V
V
V
V
V
V
V
V
V
V
V
V
(°C/W)
4