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参数资料
| 型号： | MIC4832YML TR |
| 厂商： | Micrel Inc |
| 文件页数： | 6/11页 |
| 文件大小： | 0K |
| 描述： | IC EL DRIVER 220VPP LN 8-MLF |
| 标准包装： | 1 |
| 类型： | EL 灯驱动器 |
| 频率： | 60Hz ~ 1kHz |
| 电流 - 电源： | 45µA |
| 电源电压： | 1.8 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 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 |
| 产品目录页面： | 1083 (CN2011-ZH PDF) |
| 其它名称： | 576-3032-6 |
Micrel
V IN = 3.6V
I IN = 17mA
L = 220μH
C OUT = 2.7nF
LAMP = 2 in 2
R SW = 300k
R EL = 2.82M
Time (2ms/div)
Figure 2. 100Hz Output Waveform
Switching Frequency
The switching frequency of the converter is
controlled via an external resistor between R SW pin
and V DD pin of the device. The switching frequency
increases as the resistor value decreases. For
resistor value selections, see the “Typical
Characteristics: Switching Frequency vs. SW
Resistor” or use the equation below. The switching
frequency range is 65kHz to 250kHz, with an
accuracy of ±20%. In general, the lower the
switching frequency, the greater the input current is
drawn to deliver more power to the output.
However, the switching frequency should not be so
low as to allow the voltage at the switch node or the
CS pin to go beyond the absolute maximum voltage
of those pins.
MIC4832
V IN = 3.6V
I IN = 27mA
L = 220μH
C OUT = 2.7nF
LAMP = 2 in 2
R SW = 332k
R EL = 1.78M
Time (2ms/div)
Figure 3. 200Hz Output Waveform
In general, as the EL lamp frequency increases, the
amount of current drawn from the battery will
increase. The color of the EL lamp and the intensity
are dependent upon its frequency.
V IN = 3.6V
I IN = 21mA
L = 220μH
C OUT = 2.7nF
LAMP = 1 in 2
R SW = 353k
R EL = 1.1M
f SW (kHz) =
36
R SW ( M Ω )
Time (2ms/div)
EL Frequency
The EL lamp frequency is controlled via an external
resistor connected between R EL pin and V DD pin of
the device. The lamp frequency increases as the
resistor value decreases. For resistor value
selections, see the “Typical Characteristics: EL
Frequency vs. EL Resistor” graph on page 4 or use
the equation below. The EL lamp frequency range is
60Hz to 1000Hz, with an accuracy of ±20%.
Figure 4. 300Hz Output Waveform
Enable Function
The MIC4832 is disabled by connecting the external
resistor (Rsw) to GND. This turns off the switch
oscillator of the boost converter. Connecting the
external resistor (Rsw) to V DD enables the oscillator
and turns on the device. The enable voltage should
rise or fall monotonically without interruption.
f EL ( Hz ) =
360
R EL ( M Ω )
March 2009
6
M9999-033109-C
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC4832YMM | 功能描述:LED照明驱动器 220Vpp Low Noise EL Driver 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 |
| MIC4832YMM TR | 功能描述:LED照明驱动器 220Vpp Low Noise EL Driver 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 |
| MIC4833 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Low Noise Dual 220 VPP EL Driver With Output Voltage Slew Rate Control |
| MIC4833YML | 制造商:Micrel Inc 功能描述:EL Lamp DRVR 5.8V 12-Pin MLF 制造商:Micrel 功能描述:Low Noise 220Vp-p EL Driver MLF12 |
| MIC4833YML TR | 功能描述:LED照明驱动器 Dual EL Driver in 3x3MLF 12-Lead Package 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 |
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