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参数资料
| 型号： | MIC2298-15YML TR |
| 厂商： | Micrel Inc |
| 文件页数： | 3/13页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER HIGH BRIGHT 12-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： | 闪灯/白光 |
| 类型 - 次要： | 高亮度 LED（HBLED），白色 LED |
| 频率： | 800kHz ~ 1.2MHz |
| 电源电压： | 2.5 V ~ 10 V |
| 输出电压： | 30V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 12-VFDFN 裸露焊盘，12-MLF? |
| 供应商设备封装： | 12-MLF?（4x4） |
| 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： | 576-1657-6 |
Micrel, Inc.
Absolute Maximum Ratings (1)
Supply Voltage (V IN ) .......................................................12V
Switch Voltage (V SW )....................................... –0.3V to 34V
BRT Voltage (V BRT ) ........................................... –0.3V to 6V
SS/DIM Voltage (V SS )........................................ –0.3V to 6V
Enable Voltage (V EN )....................................... –0.3V to 12V
FB Voltage (V FB )...............................................................6V
Switch Current (I SW ) .........................................................6A
Ambient Storage Temperature (T s ) ........... –65°C to +150°C
ESD Rating (3) .................................................................. 2kV
MIC2298
Operating Ratings (2)
Supply Voltage (V IN ).......................................... 2.5V to 10V
BRT Voltage (V BRT ) ........................................... 0V to 0.6V IN
Enable Voltage (V EN ).............................................. 0V to V IN
Output Voltage (V OUT ) ................................... V IN + 1 to V OVP
Junction Temperature (T J ) ........................ –40°C to +125°C
Package Thermal Impedance
3x3 MLF-12 ( θ JA ) ...............................................60°C/W
Electrical Characteristics (4)
T A = 25°C; V IN = V EN = 3.6V; V OUT = 7V; I OUT = 1A, 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
V OVP
I VIN
I SD
Under-Voltage Lockout
Over-Voltage Protection
Quiescent Current
Shutdown Current
V FB >200mV, Not Switching
V EN = 0V (Note 5)
1.8
12
2.1
13.5
15
0.1
2.4
15
23
1
V
V
mA
μA
V FB
I FB
Feedback Voltage
Feedback Input Current
(+/-8%)
(+/-10%) (Over Temp)
V FB = 200mV
184
180
200
-650
216
220
mV
nA
Line Regulation
2.5V ≤ V IN ≤ 4.5V
0.5
%
I LED
D MAX
I SW
BRT accuracy (Note 6)
Maximum Duty Cycle
Switch Current Limit
R BRT = GND
R BRT = 50K
V IN = 3V
17
45
85
3.5
20
50
90
4.75
23
55
8
%
%
A
V SW
I SW
V EN
I EN
Switch Saturation Voltage
Switch Leakage Current
Enable Threshold
Enable Pin Current
V IN = 3.6V, I SW = 3.5 A
V EN = 0V, V SW = 15V
TURN ON
TURN OFF
V EN = 10V
1.5
350
0.01
20
500
10
0.4
40
mV
μA
V
μA
f SW
I SS
T J
Oscillator Frequency
Soft start / DIM current
Over-Temperature Threshold
Shutdown
DIM = 0V
Hysteresis
0.8
1
5
150
10
1.2
MHz
μA
° C
° C
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 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.
2. The device is not guaranteed to function outside its operating rating.
3. Devices are ESD sensitive. Handling precautions recommended.
4. Specification for packaged product only.
5. I SD = I VIN
6. As percentage of full brightness where V IN = V BRT = 3.6V (100% brightness)
October 2007
3
M9999-101707-B
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相关代理商/技术参数 |
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| MIC2299 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:3.5A Minimum, 2MHz High Brightness LED Driver |
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| MIC2299-15YML TR | 功能描述:直流/直流开关调节器 2.5V 2MHz Boost LED Driver with 3.5A Switch RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
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