ISL8540EVAL1Z Intersil, ISL8540EVAL1Z Datasheet - Page 2

• Manufacturer Part Number: ISL8540EVAL1Z
• Description: EVALUATION BOARD FOR ISL8540
• Manufacturer: Intersil

Specifications of ISL8540EVAL1Z

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 5V
• Current - Output: 2A
• Voltage - Input: 9 ~ 40V
• Regulator Topology: Buck
• Frequency - Switching: 500kHz
• Board Type: Fully Populated
• Utilized Ic / Part: ISL8540
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

Electrical Specifications
Absolute Maximum Ratings
Input Voltage VIN . . . . . . . . . . . . . . . . . . . . . . . . . GND -0.3V to 42V
Voltage at BOOT pin . . . . . . . . . . . . . . . . . . . . . . GND -0.3V to 49V
LX, RTCT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND -0.3V to 42V
REF, FB, SS, EN, SYNC, PGOOD pins. . . . . . . . . . . . . . . . . . . . .8V
VCC5* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND -0.3V to 5.5V
Recommended Operating Conditions
Junction Temperature Range. . . . . . . . . . . . . . . . . .-40°C to +125°C
Supply Voltage Range (Typical). . . . . . . . . . . . . . . . . . . 9.0V to 40V
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.
*An accidental short between VCC5 and GND may cause excessive heating and permanent damage to the device.
NOTES:
VIN SUPPLY
Input Voltage Range
VIN SUPPLY CURRENT
Shut-down Current
Operating Current
VCC5 SUPPLY (A 1µF capacitor is needed from VCC5 to GND)
VCC5 Output Voltage
Maximum Output Current
INPUT UV
Rising UV Threshold
UV Threshold Hysteresis
BUCK CONVERTER
Output Voltage (Note 3)
Maximum Duty Cycle
Minimum Controllable ON Time
OSCILLATOR
Total Variation on Set Frequency
Frequency Range (Set by RTCT)
SYNC Range
1. θ
2. For θ
3. Additional heatsinking may be required to insure that junction temperature do not exceed above +125°C.
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
2
Unless otherwise specified the specifications listed in the table are tested at T
full Temperature Range, V
with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits
established by characterization and are not production tested.
SYMBOL
f
f
IDD
IDD
OSC
OSC
V
V
V
V
V
V
I
F = 300kHz
F = 300kHz
Over the V
external resistor and capacitor at RTCT
OUT
IN
IN
IN
IN
IN
IN
IN
= 9V, EN = HIGH
= 40V, EN = HIGH
= 9V, V
= 40V, V
= 9.0V to 40V, I
= 24V
= 24V, V
= 2A
ISL8540
IN
FB
FB
TEST CONDITIONS
range with frequency set by
OUT
= 1.5V
= 1.5V
= 5.0V, I
Thermal Information
Thermal Resistance (Typical, Notes 1, 2) θ
Maximum Power Dissipation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3W
Maximum Junction Temperature (Hermetic Package or Die) . . +150°C
Maximum Junction Temperature (Plastic Package) . . . . . . . +150°C
Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C
Pb-Free Reflow Profile. . . . . . . . . . . . . . . . . . . . . . . . .see link below
L
= 0mA to 5mA
HTSSOP Package . . . . . . . . . . . . . . . .
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
OUT
= 0A. Typical values are at T
MIN
0.18
100
100
9.0
4.9
7.8
1.2
90
A
= +25°C and guard band for the
A
TYP
150
±10
3.6
6.0
5.0
0.3
24
35
60
96
= +25°C. Parameters
JA
(°C/W)
40
V
MAX
0.55
IN
600
600
110
8.0
5.1
8.9
40
60
4
5
September 9, 2008
- 5
θ
JC
UNITS
FN6495.5
2.5
(°C/W)
kHz
kHz
mA
mA
mA
µA
µA
ns
%
%
V
V
V
V
V