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參數(shù)資料
| 型號： | ISL8560 |
| 廠商： | Intersil Corporation |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | DC/DC Power Switching Regulator |
| 中文描述： | DC/DC電源開關(guān)穩(wěn)壓器 |
| 文件頁數(shù)： | 2/17頁 |
| 文件大?。?/td> | 1016K |
| 代理商： | ISL8560 |
2
FN9244.6
September 18, 2007
Absolute Maximum Ratings
Thermal Information
Input Voltage VIN. . . . . . . . . . . . . . . . . . . . . . . . .GND - 0.3V to 72V
Voltage at BOOT pin . . . . . . . . . . . . . . . . . . . . . .GND - 0.3V to 82V
LX, RTCT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GND - 0.3V to 60V
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 60V
Thermal Resistance (Typical, Notes 1, 2)
QFN Package. . . . . . . . . . . . . . . . . . . .
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
θJA
(°C/W)
30
θ
JC
(°C/W)
1.5
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:
1.
θ
JA
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.
2. For
θ
JC
, the “case temp” location is the center of the exposed metal pad on the package underside.
3. Additional heatsinking may be required to insure that the junction temperature does not exceed above +125°C.
Electrical Specifications
Unless otherwise specified the specifications listed in the table are tested at T
A
= +25°C and guard band for the
full Temperature Range, V
IN
= 48V, V
OUT
= 5.0V, I
OUT
= 0A. Typical values are at T
A
= +25°C.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
VIN SUPPLY
Input Voltage Range
9.0
24
60
V
VIN SUPPLY CURRENT
Shut-down Current
IDD
V
IN
= 9V, EN = HIGH
35
60
μ
A
V
IN
= 60V, EN = HIGH
60
110
μ
A
Operating Current
IDD
V
IN
= 9V, V
FB
= 1.5V
3.6
4
mA
V
IN
= 60V, V
FB
= 1.5V
6.0
8.0
mA
VCC5 SUPPLY
(A 1μF cap is needed from VCC5 to GND)
VCC5 Output Voltage
V
IN
= 9.0V to 60V, I
L
= 0mA to 5mA
4.9
5.0
5.1
V
Maximum Output Current
V
IN
= 24V
5
mA
INPUT UV
Rising UV Threshold
7.8
8.9
V
UV Threshold Hysteresis
0.18
0.3
0.55
V
BUCK CONVERTER
Output Voltage (Note 3)
I
OUT
= 2A
1.2
V
IN
- 5
V
Maximum Duty Cycle
F = 300kHz
90
96
%
Minimum Controllable ON Time
F = 300kHz
150
ns
OSCILLATOR
Total Variation on Set Frequency
Over the V
IN
range with frequency set by
external resistor and capacitor at RTCT
±10
%
Frequency Range (Set by RTCT)
f
OSC
100
600
kHz
SYNC Range
f
OSC
100
600
kHz
Tested Oscillation Frequency
f
OSC
V
IN
= 9V to 60V, R
T
= 100k
Ω
, C
T
= 1200pF
V
IN
= 9V to 60V, R
T
= 27.4k
Ω
, C
T
= 220pF
60
kHz
725
kHz
Max Ramp Amplitude
Δ
V
OSC
V
IN
= 9V
1
V
P
ISL8560
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