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參數(shù)資料
| 型號(hào)： | ISL97631 |
| 廠商： | Intersil Corporation |
| 英文描述： | White LED Boost Regulator With Integrated Schottky Diode |
| 中文描述： | 白光LED升壓調(diào)節(jié)器集成了肖特基二極管 |
| 文件頁數(shù)： | 2/8頁 |
| 文件大?。?/td> | 332K |
| 代理商： | ISL97631 |
2
FN7370.1
December 21, 2005
Absolute Maximum Ratings
(T
A
= 25°C)
Input Voltage (V
IN
). . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to +6V
LX, Vout Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to +27V
FB Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to +6V
ENAB Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to +6V
Operating Temperature . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C
Thermal Information
Thermal Resistance (Typical, Note 1)
6 Ld TSOT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Junction Temperature (Plastic Package . . . . . . . . .150°C
Maximum Storage Temperature Range. . . . . . . . . .-65°C to +150°C
Maximum Lead Temperature (Soldering, 10s). . . . . . . . . . . .+300°C
(TSOT - Lead Tips Only)
θ
JA
(°C/W)
190
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed over the specified temperature range. All parameters are based on pulsed tests,
therefore: T
J
= T
C
= T
A
NOTE:
1.
θ
JA
is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
Electrical Specifications
V
IN
= 3V, V
ENAB
= 3V, T
A
= -40°C to 85°C unless otherwise specified.
PARAMETER
DESCRIPTION
CONDITION
MIN
TYP
MAX
UNIT
V
IN-MIN
Minimum Operating Voltage
V
OUT
= 16V, I
LED
= 20mA
2.7
V
V
IN-MAX
Maximum Operating Voltage
V
OUT
= 25V, I
LED
= 20mA
5.5
V
V
FB
Feedback Voltage
80
100
120
mV
I
FB
FB Pin Bias Current
100
nA
I
IN
Supply Current
ENAB = 3V, output not switching
0.6
1.0
mA
ENAB = 0V
1
μA
F
OSC
Switching Frequency
0.8
1.35
1.8
MHz
D
MAX
Maximum Duty Cycle
T
A
= 25°C
85
90
%
82
90
%
I
LIM
Switch Current Limit
T
A
= 25°C
280
350
mA
250
350
mA
r
DS(ON)
Switch On Resistance
I
LX
= 100mA
750
m
I
LEAK(LX)
Switch Leakage Current
V
LX
= 27V, Vout = 27V
0.01
1
μA
I
LEAK(VOUT)
Diode Leakage Current
V
OUT
= 27V
0.01
1
μA
V
DIODE
LX-V
OUT
Diode Forward Voltage
I
DIODE
= 100mA, T
A
= 25°C
0.75
0.9
V
V
ENAB-HI
ENAB Voltage High
2.5
V
V
ENAB-LO
ENAB Voltage Low
0.6
V
I
ENAB
ENAB Pin Bias Current
1
μA
I
LED
/
V
IN
Line Regulation
V
IN
= 2.7V to 5V
0.2
%/V
Eff
Efficiency
I
LED
= 20mA, 3 LEDs
85
%
ISL97631
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| ISL97632IRT14Z | 制造商:Intersil 功能描述:LED Driver with 1-Wire Dimming(3 LED) |
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