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參數(shù)資料
| 型號(hào)： | MIC2289-24YML |
| 廠商： | MICREL INC |
| 元件分類： | 顯示驅(qū)動(dòng)器 |
| 英文描述： | 2mm 】 2mm White LED Driver with Internal Schottky Diode and OVP |
| 中文描述： | LED DISPLAY DRIVER, DSO8 |
| 封裝： | 2 X 2 MM, LEAD FREE, MLF-8 |
| 文件頁(yè)數(shù)： | 3/9頁(yè) |
| 文件大?。?/td> | 88K |
| 代理商： | MIC2289-24YML |
August, 2004
3
M9999-081104
MIC2289
Absolute Maximum Ratings
(1)
Supply Voltage (V
IN
) .....................................................12V
Switch Voltage (V
SW
) .....................................
–
0.3V to 34V
Enable Pin Voltage (V
EN
)...................................
–
0.3 to V
IN
FB Voltage (V
FB
) .............................................................6V
Switch Current (I
SW
) .......................................................2A
Ambient Storage Temperature (T
S
) .........
–
65
°
C to +150
°
C
Schottky Reverse Voltage (V
DA
) ...................................34V
ESD Rating
(3)
................................................................2kV
Micrel
Operating Ratings
(2)
Supply Voltage (V
IN
) ........................................ 2.5V to 10V
Output Voltage (V
OUT
) ..................................... V
IN
to V
OVP
Junction Temperature Range (T
J
) ...........
–
40
°
C to +125
°
C
Package Thermal Impedance
2mm
×
2mmMLF
-8 (
θ
JA
)..................................93
°
C/W
Electrical Characteristics
(4)
T
A
= 25
°
C, V
IN
= V
EN
= 3.6V, V
OUT
= 10V, I
OUT
= 20mA, unless otherwise noted.
Bold
values indicate
–
40
°
C
≤
T
J
±
125
°
C.
Symbol
Parameter
Condition
Min
Typ
Max
Units
V
IN
V
UVLO
I
VIN
I
SD
V
FB
I
FB
Supply Voltage Range
2.5
10
V
Under Voltage Lockout
1.8
2.1
2.4
V
Quiescent Current
V
FB
> 200mV, (not switching)
V
EN
= 0V
(5)
(
±
5%)
2.5
5
mA
Shutdown Current
0.1
1
μ
A
Feedback Voltage
90
95
100
mV
Feedback Input Current
V
FB
= 95mV
3V
≤
V
IN
≤
5V
5mA
≤
I
OUT
≤
20mA
–
450
nA
Line Regulation
0.5
1
%
Load Regulation
0.5
2
%
D
MAX
I
SW
V
SW
I
SW
V
EN
Maximum Duty Cycle
85
90
%
Switch Current Limit
750
mA
Switch Saturation Voltage
I
SW
= 0.5A
V
EN
= 0V, V
SW
= 10V
TURN ON
TURN OFF
450
mV
Switch Leakage Current
0.01
5
μ
A
Enable Threshold
1.5
V
V
0.4
I
EN
f
SW
V
D
I
RD
V
OVP
Enable Pin Current
V
EN
= 10V
20
40
μ
A
Oscillator Frequency
1.05
1.2
1.35
MHz
Schottky Forward Drop
I
D
= 150mA
V
R
= 30V
MIC2289-15
MIC2289-24
MIC2289-34
0.8
1
V
Schottky Leakage Current
4
μ
A
Overvoltage Protection
13
21
30
14
22.5
32
16
24
34
V
V
V
T
J
Overtemperature
Threshold Shutdown
150
10
°
C
°
C
Hysteresis
Notes:
1. Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating
the device outside of its operating ratings. The maximum allowable power dissipation is a function of the maximum junction temperature, T
(max),
the junction-to-ambient thermal resistance,
θ
, and the ambient temperature, T
A
. The maximum allowable power dissipation will result in excessive
die temperature, and the regulator will go into thermal shutdown.
2. This device is not guaranteed to operate beyond its specified operating rating.
3. Devices are inherently ESD sensitive. Handling precautions required. Human body model.
4. Specification for packaged product only.
5. I
SD
= I
VIN
.
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