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參數(shù)資料
| 型號： | MIC3289-16YML |
| 廠商： | MICREL INC |
| 元件分類： | 顯示驅(qū)動器 |
| 英文描述： | 400 W Transient Voltage Suppressor, SOD123W (SOD2 FlatPower), Reel Pack, SMD |
| 中文描述： | LED DISPLAY DRIVER, DSO8 |
| 封裝： | 2 X 2 MM, MLF-8 |
| 文件頁數(shù)： | 9/13頁 |
| 文件大?。?/td> | 377K |
| 代理商： | MIC3289-16YML |
Micrel, Inc.
MIC3289
March 2007
9
M9999-030407
(408) 944-0800
Figure 1. MIC3289 Logic State Diagram
With an input supply voltage between 2.5V and 6.5V and
a logic-level LOW applied to the DC pin, the MIC3289
will enter State 0, Shutdown, and remain there
consuming less than 1μA until a logic level high is
applied to the DC pin.
Start Up
Applying a logic-level HIGH to the DC pin initiates the
start-up sequence. After the t
START_UP
period the
MIC3289 will transition to State 1, the boost drive will
turn on and begin regulating LED drive current at
maximum brightness level 15, and DC pin programming
pulses will cause the brightness level to decrease.
Figure 2. Start-Up Timing
Shutdown
Whenever a logic-level LOW is applied to the DC input
pin for a period greater than or equal to t
SHUTDOWN
, the
MIC3289 will return to State 0 entering its power saving
shutdown mode.
Figure 3. Shutdown Timing
Once the device is shutdown, the boost supply is
disabled, and the LEDs are turned off. Brightness level
information stored in the MIC3289 prior to shutdown will
be lost.
Programming Pulse Counter Modes
Referring once again to the state diagram in Figure 1,
notice that there are two programming pulse counting
modes. At power up the MIC3289 defaults to State 1, the
count-down mode. The counting mode can be changed
to State 2, the count-up mode, by pulling the DC pin low
for a period equal to t
MODE_UP
. Subsequent programming
pulses will then increase the LED brightness one level
for each pair of programming pulses. Figure 4 shows
the timing for the mode change.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC3289-16YML TR | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.2MHz 0.5A Switch WLED Driver with Digital Brightness Control (lead free) RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MIC3289-16YML-TR | 功能描述:LED 驅(qū)動器 IC 1 輸出 DC DC 穩(wěn)壓器 升壓（升壓） 1.2A（開關(guān)） 8-MLF?（2x2） 制造商:microchip technology 系列:- 包裝:剪切帶（CT） 零件狀態(tài):有效 類型:DC DC 穩(wěn)壓器 拓?fù)?升壓（升壓） 內(nèi)部開關(guān):是 輸出數(shù):1 電壓 - 供電（最低）:2.5V 電壓 -?供電（最高）:6.5V 電壓 - 輸出:- 電流 - 輸出/通道:1.2A（開關(guān)） 頻率:1.2MHz 調(diào)光:- 應(yīng)用:背光 工作溫度:-40°C ~ 125°C （TJ） 安裝類型:表面貼裝 封裝/外殼:8-VFDFN 裸露焊盤，8-MLF? 供應(yīng)商器件封裝:8-MLF?（2x2） 標(biāo)準(zhǔn)包裝:1 |
| MIC3289-24YD6 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:1.2MHz PWM White LED Driver with Internal Schottky Diode and True 1-Wire Digital Control |
| MIC3289-24YD6 TR | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.2MHz 0.5A Switch WLED Driver with Digital Brightness Control (lead free) RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MIC3289-24YD6TR | 制造商:Micrel 功能描述:1.2MHz 0.5A Sw LED Drvr, MIC3289-24YD6 |
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