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参数资料
| 型号： | MIC2297-42YML TR |
| 厂商： | Micrel Inc |
| 文件页数： | 3/11页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVR WHITE BCKLGT 10-MLF |
| 标准包装： | 1 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光，闪灯/白光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 525kHz ~ 675kHz |
| 电源电压： | 2.5 V ~ 10 V |
| 输出电压： | 40V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-VFDFN 裸露焊盘，10-MLF? |
| 供应商设备封装： | 10-MLF?（3x3） |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 125°C |
| 产品目录页面： | 1082 (CN2011-ZH PDF) |
| 其它名称： | 576-1440-6 |
Micrel, Inc.
Absolute Maximum Rating (1)
Supply voltage (V IN )........................................................12V
Switch voltage (V SW ) ........................................ -0.3V to 50V
Enable pin voltage (V EN )....................................... -0.3 to V IN
FB Voltage (V FB )...............................................................6V
V BRT ..................................................................................6V
Switch Current (I SW ) .........................................................3A
Ambient Storage Temperature (T S )............-65 ° C to +150 ° C
ESD Rating (3) ................................................................ 2KV
MIC2297
Operating Range (2)
Supply Voltage (V IN ).......................................... 2.5V to 10V
Maximum Output Voltage (V OUT )....................................40V
Junction Temperature Range (T J )..............-40 ° C to +125 ° C
Package Thermal Impedance
MLF ? -10 ( θ JA ).....................................................65 ° C/W
Electrical Characteristics
T A =25 o C, V IN =V EN = 3.6V, V OUT = 30V, I OUT = 20mA, unless otherwise noted. Bold values indicate -40 ° C ≤ T J ≤ 125 ° C.
Symbol
V IN
Parameter
Supply Voltage Range
Condition
Min
2.5
Typ
Max
10
Units
V
V UVLO
I VIN
I SD
Under-Voltage Lockout
Quiescent Current
Shutdown Current
V FB = 200mV (not switching)
V EN = 0V (4)
1.8
2.1
4
0.1
2.4
7
1
V
? mA
μA
V FB
I FB
Feedback Voltage
Feedback Input Current
(5)
Line Regulation
(5)
Load Regulation
(+/-5%)
(+/±6.5%) (Over Temp)
V FB = 200mV
2.5V ≤ V IN ≤ 4.5V
5mA ≤ I OUT ≤ 20mA
190
187
200
-450
0.5
0.5
210
213
1
mV
nA
%
%
D MAX
Maximum Duty Cycle
93
%
I SW
V SW
Switch Current Limit
Switch Saturation Voltage
V IN 2.5V
V IN = 2.5V, I SW = 0.5A
1.2
1.7
220
2.5
A
mV
I SW
V EN
I EN
Switch Leakage Current
Enable Threshold
Enable Pin Current
V EN = 0V, V IN = 10V
TURN ON
TURN OFF
V EN = 10V
1.5
0.01
20
1
0.4
40
μA
V
μA
V BRT = 0V
0.015
V
V REF
Brightness Control Accuracy
V BRT = 1V
V BRT = 5V
V BRT = OPEN
0.185
0.93
0.19
0.2
1.0
0.2
0.215
1.05
0.21
f SW
Oscillator Frequency
525
600
675
KHz
V OVP
Over Voltage protection
MIC2297-42BML (nominal voltage)
MIC2297-15BML (nominal voltage)
40.5
15
42
16
47
18
V
T J
Over-Temperature Threshold
150
° C
Shutdown
Hysteresis
10
° C
Notes:
1.
2.
3.
4.
5.
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 J(Max) , the junction-to-ambient thermal resistance, θ JA , 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.
This device is not guaranteed to operate beyond its specified operating rating.
IC devices are inherently ESD sensitive. Handling precautions required. Human body model.
I SD = I VIN .
Guaranteed by design.
Mach 2008
3
M9999-032708
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