LM3444數(shù)據(jù)手冊開發(fā)板套件編程器的評估板-LED驅(qū)動器規(guī)格書PDF
LM3444規(guī)格書詳情
描述 Description
The LM3444 is an adaptive constant off-time AC/DC buck (step-down) constant current controller that provides a constant current for illuminating high power LEDs. The high-frequency capable architecture allows the use of small external passive components. A passive PFC circuit ensures good power factor by drawing current directly from the line for most of the cycle, and provides a constant positive voltage to the buck regulator. Additional features include thermal shutdown, current limit and VCC undervoltage lockout. The LM3444 is available in a low profile 10-pin VSSOP package or an 8-lead SOIC package.
特性 Features
? Application Voltage Range: 80 VAC to 277 VAC
? Capable of Controlling LED Currents Greater than 1 A
? Adjustable Switching Frequency
? Low Quiescent Current
? Adaptive Programmable Off-Time Allows for Constant Ripple Current
? Thermal Shutdown
? No Flicker at 120 Hz
? Low-Profile 10-Pin VSSOP Package or 8-Lead SOIC Package
? Patented Drive Architecture
技術(shù)參數(shù)
- 制造商編號
：LM3444
- 生產(chǎn)廠家
：TI
- Topology
：Buck
- Vin (Min) (V)
：8
- Vin (Max) (V)
：13
- Iout (Max) (A)
：2
- Iq (Typ) (mA)
：1.58
- Features
：Adjustable Switch Frequency
- Operating temperature range (C)
：-40 to 125
- Dimming method
：Analog
| 供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
NSC |
2016+ |
MSOP10 |
3000 |
只做原裝,假一罰十,公司可開17%增值稅發(fā)票! |
詢價 | ||
TI |
三年內(nèi) |
1983 |
只做原裝正品 |
詢價 | |||
NS |
1836+ |
MSOP10 |
9852 |
只做原裝正品現(xiàn)貨!或訂貨假一賠十! |
詢價 | ||
TI |
24+ |
SOP8 |
20000 |
全新原廠原裝，進(jìn)口正品現(xiàn)貨，正規(guī)渠道可含稅??！ |
詢價 | ||
TI |
10+ |
MSOP-8 |
2980 |
一級代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力 |
詢價 | ||
TI/德州儀器 |
25+ |
25000 |
原廠原包 深圳現(xiàn)貨 主打品牌 假一賠百 可開票! |
詢價 | |||
TI |
24+ |
SOIC|8 |
684100 |
免費送樣原盒原包現(xiàn)貨一手渠道聯(lián)系 |
詢價 | ||
NS |
25+23+ |
MSOP-10 |
17281 |
絕對原裝正品全新進(jìn)口深圳現(xiàn)貨 |
詢價 | ||
NS |
22+ |
MSOP-8 |
3000 |
原裝正品,支持實單 |
詢價 | ||
TI/德州儀器 |
21+ |
SOIC8 |
36680 |
只做原裝,質(zhì)量保證 |
詢價 |
