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參數(shù)資料
| 型號： | MIC4832YML |
| 廠商： | MICREL INC |
| 元件分類： | 顯示驅(qū)動(dòng)器 |
| 英文描述： | Low Noise 220Vp-p EL Driver |
| 中文描述： | EL DISPLAY DRIVER, PDSO8 |
| 封裝： | 3 X 3 MM, GREEN, MLF-8 |
| 文件頁數(shù)： | 6/11頁 |
| 文件大小： | 447K |
| 代理商： | MIC4832YML |
Micrel
MIC4832
November 2007
6
M9999-111507-B
V
IN
= 3.6V
I
IN
= 17mA
L = 220μH
C
OUT
= 2.7nF
LAMP = 2 in
2
R
SW
= 300k
R
EL
= 2.82M
V
(
V
(
V
(
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,
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.
see
the
“Typical
(
)
=
M
R
36
(kHz)
f
SW
SW
EL Frequency
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%.
(
)
(
)
=
M
R
360
Hz
f
EL
EL
V
IN
= 3.6V
I
IN
= 27mA
L = 220μH
C
OUT
= 2.7nF
LAMP = 2 in
2
R
SW
= 332k
R
EL
= 1.78M
V
(
V
(
V
(
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
V
(
V
(
V
(
Time (2ms/div)
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.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC4832YML TR | 功能描述:LED照明驅(qū)動(dòng)器 220Vpp Low Noise EL Driver RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| MIC4832YML-TR | 功能描述:IC EL DRIVER 220VPP LN 8-MLF 制造商:microchip technology 系列:- 包裝:剪切帶（CT） 零件狀態(tài):停產(chǎn) 類型:EL 燈驅(qū)動(dòng)器 頻率:60Hz ~ 1kHz 電壓 - 電源:1.8 V ~ 5.5 V 電流 - 電源:45μA 電流 - 灌/拉輸出:- 調(diào)光:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-VFDFN 裸露焊盤，8-MLF? 圖號:* 制造商卷帶直徑:13"（330mm） 制造商卷帶材料:塑料 制造商卷帶寬度:12mm 供應(yīng)商器件封裝:8-MLF?（2x2） 標(biāo)準(zhǔn)包裝:1 |
| MIC4832YMM | 功能描述:LED照明驅(qū)動(dòng)器 220Vpp Low Noise EL Driver RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| MIC4832YMM TR | 功能描述:LED照明驅(qū)動(dòng)器 220Vpp Low Noise EL Driver RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| MIC4833 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Low Noise Dual 220 VPP EL Driver With Output Voltage Slew Rate Control |
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