参数资料
| 型号： | MIC4826BMM |
| 厂商： | Micrel Inc |
| 文件页数： | 8/12页 |
| 文件大小： | 0K |
| 描述： | IC EL DRIVER 160VPP OUT 8-MSOP |
| 标准包装： | 100 |
| 类型： | EL 灯驱动器 |
| 频率： | 60 ~ 1000 Hz |
| 电流 - 电源： | 21µA |
| 电源电压： | 1.8 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-MSOP |
| 包装： | 管件 |
MIC4826
tors will function and the EL driver is enabled.
Application Information
Inductor
In general, smaller value inductors, which can handle more
current, are more suitable to drive larger size lamps. As the
inductor value decreases, the switching frequency (controlled
by R SW ) should be increased to avoid saturation or the input
voltage should be increased. Typically, inductor values ranging
from 220μH to 560μH can be used. Murata offers the LQH3C
series up to 560μH and LQH4C series up to 470μH, with low
DC resistance. A 220μH Murata (LQH4C221K04) inductor is
recommended for driving a lamp size of 3 square inches. It
Pre-designed Application Circuits
Li-Ion Battery
V IN
3.0V to 4.2V
Micrel
has a maximum DC resistance of 4.0?.
Diode
The diode must have a high reverse voltage (100V) since
the output voltage at the CS pin can reach up to 100V. A
fast switching diode with lower forward voltage and higher
reverse voltage (100V), such as BAV19WS, can be used to
enhance efficiency.
Output Capacitor
Low ESR capacitors should be used at the regulated boost
output (CS pin) of the MIC4826 to minimize the switching output
ripple voltage. Selection of the capacitor value will depend
upon the peak inductor current, inductor size, and the load.
MuRata offers the GRM40 series with up to 0.015μF at 100V,
with a X7R temperature coefficient in 0805 surface-mount
package. Typically, values ranging from 0.01μF to 0.1μF at
100V can be used for the regulated boost output capacitor.
L1
220 μ H D1
Murata Vishay Telefunken
LQH4C221K04 BA V19W S
C2
10 μ F/6.3V
Murata
GRM42-6X5R106K6. 3
C1
0.22 μ F/10V
Murata
GRM39X7R 224K10
R2
3.32M
R1
322k
1
2
3
MIC4826
VDD SW
RSW CS
RE L VB
5
6
7
C OUT
0.01 μ F/100V
GRM40X7R103K
4
GND
VA
8
3in 2 LAMP
V IN
3.3V
I IN
20mA
V A –V B
160V PP
F EL
100Hz
Lamp Size
3in 2
V IN = 3.0V
L = 220 μ H ?
C OUT = 0.01 μ F
Lamp = 2in 2 ?
R SW = 332k ?
R EL = 3.32M
TIME (2ms/div)
Figure 5. Typical 100Hz EL Driver for 3in 2 Lamp
MIC4826
8
March 2009
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| MIC4830YMM TR | IC DRIVER LN 180VP-P EL 8MSOP |
| MIC4832YMM TR | IC DRIVER LN 220VP-P EL 8MSOP |
| MIC4833YML TR | IC DVR EL LOW NOISE 12-MLF |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC4826BMM TR | 功能描述:IC DRIVER EL DC-AC 160VPP 8MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 照明，镇流器控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:CCFL 控制器 频率:40 ~ 80 kHz 电流 - 电源:5mA 电流 - 输出:- 电源电压:4.5 V ~ 5.5 V 工作温度:-40°C ~ 85°C 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:带卷 (TR) 其它名称:90-3991V+V01 |
| MIC4826BMMTR | 制造商:Rochester Electronics LLC 功能描述: 制造商:RF Micro Devices Inc 功能描述: 制造商:Micrel Inc 功能描述: |
| MIC4826YMM | 功能描述:LED照明驱动器 160V EL Driver (Lead Free) RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| MIC4826YMM TR | 功能描述:LED照明驱动器 160V EL Driver (Lead Free) RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| MIC4826YMM | 制造商:Micrel Inc 功能描述:Driver IC |
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