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MAX1839中文資料
MAX1839數(shù)據(jù)手冊(cè)規(guī)格書PDF詳情
General Description
The MAX1739/MAX1839 fully integrated controllers are optimized to drive cold-cathode fluorescent lamps (CCFLs) using the industry-proven Royer oscillator inverter architecture. The Royer architecture provides near sinusoidal drive waveforms over the entire input range to maximize the life of CCFLs. The MAX1739/MAX1839 optimize this architecture to work over a wide input voltage range, achieve high efficiency, and maximize the dimming range.
The MAX1739/MAX1839 monitor and limit the transformer center-tap voltage when required. This ensures minimal voltage stress on the transformer, which increases the operating life of the transformer and eases its design requirements. These controllers also provide protection against many other fault conditions, including lamp-out and buck short faults.
These controllers achieve 50:1 dimming range by simultaneously adjusting lamp current and “chopping” the CCFL on and off using a digitally adjusted pulse width modulated (DPWM) method. CCFL brightness is controlled by an analog voltage or is set with an SMBusTM-compatible two-wire interface (MAX1739).
The MAX1739/MAX1839 drive an external high-side N-channel power MOSFET and two low-side N-channel power MOSFETs, all synchronized to the Royer oscillator. An internal 5.3V linear regulator powers the MOSFET drivers and most of the internal circuitry. The MAX1739/MAX1839 are available in space-saving 20-pin QSOP packages and operate over the -40°C to +85°C temperature range.
Features
? Fast Response to Input Change
? Wide Input Voltage Range (4.6V to 28V)
? High Power-to-Light Efficiency
? Minimizes Transformer Voltage Stress
? Lamp-Out Protection with 2s Timeout
? Buck Switch Short and Other Single-Point Fault Protection
? Integrated Royer MOSFET Drivers Reduce Transformer Pin Count
? Buck Operation Synchronized to Royer Oscillator
? Synchronizable DPWM Frequency
? Pin-Selectable Brightness Control Interface
? SMBus Serial Interface (MAX1739)
? Analog Interface (MAX1739/MAX1839)
Applications
?? Notebook/Laptop Computers
?? Car Navigation Displays
?? LCD Monitors
?? Point-of-Sale Terminals
?? Portable Display Electronics
MAX1839產(chǎn)品屬性
- 類型
描述
- 型號(hào)
MAX1839
- 功能描述
顯示驅(qū)動(dòng)器和控制器
- RoHS
否
- 制造商
Panasonic Electronic Components
- 工作電源電壓
2.7 V to 5.5 V
- 安裝風(fēng)格
SMD/SMT
- 封裝/箱體
QFN-44
- 封裝
Reel
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫(kù)存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
MAXIM |
2023+ |
SSOP |
53500 |
正品,原裝現(xiàn)貨 |
|||
MAXIM |
23+ |
NA |
25060 |
只做進(jìn)口原裝,終端工廠免費(fèi)送樣 |
|||
MAXIM/美信 |
23+ |
SSOP20 |
13000 |
原廠授權(quán)一級(jí)代理,專業(yè)海外優(yōu)勢(shì)訂貨,價(jià)格優(yōu)勢(shì)、品種 |
|||
MAXIM |
23+ |
SSOP20 |
5000 |
絕對(duì)全新原裝!現(xiàn)貨!特價(jià)!請(qǐng)放心訂購(gòu)! |
|||
MAXIM |
24+ |
SMD |
2250 |
100%全新原裝公司現(xiàn)貨供應(yīng)!隨時(shí)可發(fā)貨 |
|||
MAXIM |
24+ |
SOP |
21 |
||||
MAXIM |
22+ |
SMD |
8200 |
原裝現(xiàn)貨庫(kù)存.價(jià)格優(yōu)勢(shì) |
|||
MAXIM |
23+ |
SSOP |
8560 |
受權(quán)代理!全新原裝現(xiàn)貨特價(jià)熱賣! |
|||
maxim |
20+ |
2588 |
全新現(xiàn)貨熱賣中歡迎查詢 |
||||
MAXIM |
24+ |
NA |
6980 |
原裝現(xiàn)貨,可開13%稅票 |
MAX1839 資料下載更多...
MAX1839 芯片相關(guān)型號(hào)
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- AME8501BEEVCE20
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- BL-C4636
- BL-C5436
- CAT5111UI-50TE13
- HFBR-2405M
- HFBR-2415M
- LD1117F33C
- LD1117F50
- LD1117S50
- LD1117V30C
- LD1117V33C
- M378T2953BG0-CD5/CC
- M74HC574TTR
- MAX1939
- MAX6956AAX
- MC1210N
- MC33035
- MC68020FC20
- MC68020FE25
- MC68020RP20
- MCR08BT1
- MIC2186
- MN1614
- MULTIWATT
- NAND128W4A0CN6
- NAND512W4A2BN6
- XC6201P151PH
- XC6201P171TH
MAXIM相關(guān)芯片制造商
Datasheet數(shù)據(jù)表PDF頁(yè)碼索引
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Maxim Integrated Products 美信半導(dǎo)體
中文資料: 61736條
Maxim Integrated Products是一家專注于模擬和混合信號(hào)集成電路的公司，成立于1983年，總部位于美國(guó)加利福尼亞州圣何塞。公司設(shè)計(jì)和制造廣泛應(yīng)用于電子設(shè)備的高性能集成電路，涵蓋電源管理、信號(hào)處理、傳感器和接口等多個(gè)領(lǐng)域。 Maxim的產(chǎn)品廣泛應(yīng)用于消費(fèi)電子、工業(yè)、汽車、通信等市場(chǎng)，以其高性能和創(chuàng)新技術(shù)著稱。公司致力于通過推動(dòng)技術(shù)進(jìn)步來滿足客戶的需求，并提供解決方案，幫助客戶實(shí)現(xiàn)更高的效率和更好的性能。 在2021年，Maxim Integrated被Analog Devices收購(gòu)，進(jìn)一步增強(qiáng)了Analog Devices在市場(chǎng)上的競(jìng)爭(zhēng)力和技術(shù)實(shí)力。
