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参数资料
| 型号： | MIC2293-34YML TR |
| 厂商： | Micrel Inc |
| 文件页数： | 3/11页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER WHITE BCKLGT 8-MLF |
| 标准包装： | 1 |
| 恒定电流： | 是 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 1.75MHz ~ 2.25MHz |
| 电源电压： | 2.5 V ~ 10 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-VFDFN 裸露焊盘，8-MLF? |
| 供应商设备封装： | 8-MLF?（2x2） |
| 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： | 576-2657-6 |
Micrel, Inc.
Absolute Maximum Ratings (1)
Supply Voltage (V IN ) .....................................................+12V
Switch Voltage (V SW )....................................... ? 0.3V to 34V
Enable Pin Voltage (V EN )................................... ? 0.3V 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
MIC2292/93
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
8-Pin MLF ? ( θ JA ) .............................................. 93°C/W
Electrical Characteristics (4)
T A = +25 ° C, V IN = V EN = 3.6V, V OUT = 15V, I OUT = 20mA, unless otherwise indicated. 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
Undervoltage Lockout
Quiescent Current
Shutdown Current
V FB > 200mV (not switching)
V EN = 0V (5)
1.8
2.1
2.5
0.1
2.4
5
1
V
mA
μA
Line Regulation
V FB
I FB
D MAX
Feedback Voltage
Feedback Input Current
(6)
Load Regulation (6)
Maximum Duty Cycle
( ± 5%)
V FB = 95mV
3V ≤ V IN ≤ 5V
5mA ≤ I OUT ≤ 20mA
90
85
95
- 450
0.5
0.5
90
100
1
2
mV
nA
%
%
I SW
Switch Current Limit
750
mA
V SW
Switch Saturation Voltage
I SW = 0.5A
450
mV
I SW
V EN
I EN
Switch Leakage Current
Enable Threshold
Enable Pin Current
V EN = 0V, V SW = 10V
Turn-On
Turn-Off
V EN = 10V
1.5
0.01
20
5
0.4
40
μA
V
μA
f SW
Oscillator Frequency
MIC2292
MIC2293
1.4
1.75
1.6
2.0
1.8
2.25
MHz
Notes:
1.
2.
3.
4.
5.
6.
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.
The device is not guaranteed to operate beyond its specified operating ratings.
Devices are inherently ESD sensitive. Handling precautions required. Human body model, 1.5k ? in series with 100pF.
Specification for packaged product only.
I SD = I VIN .
Guaranteed by design.
April 2012
3
M9999-040212-B
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