RT7331中文資料Primary-Side Regulation Dimmable LED Driver Controller with Active-PFC數(shù)據(jù)手冊Richtek規(guī)格書
RT7331規(guī)格書詳情
描述 Description
The RT7331 is a dimmable constant current LED driver with active power factor correction. It supports high power factor across a wide range of line voltages, and it drives the converter in the Quasi-Resonant (QR) mode to achieve the higher efficiency. By using Primary Side Regulation (PSR), the RT7331 controls the output current accurately without a shunt regulator and an opto-coupler at the secondary side, reducing the external component count, the cost, and the volume of the driver board.
The RT7331 is compatible with the analog dimming. The output current can be modulated by the PWM duty ratio or the average level of DIM pin.
The RT7331 embeds comprehensive protection functions for robust designs, including LED open-circuit protection, LED short-circuit protection, output diode short-circuit protection, VDD Under-Voltage Lockout (UVLO), VDD Over-Voltage Protection (VDD OVP), over load protection, input under / over voltage protection, external / internal Over-Temperature Protection (OTP), and cycle-by-cycle current limitation.
| 供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
RICHTEK |
20+ |
SMD |
56200 |
原裝優(yōu)勢主營型號-可開原型號增稅票 |
詢價 | ||
RICHTEK/立锜 |
22+ |
100000 |
代理渠道/只做原裝/可含稅 |
詢價 | |||
RICHTEK |
21+ |
SOP-8 |
5000 |
一級代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力 |
詢價 | ||
RICHTEK/立锜 |
21+ |
SOP-8 |
15000 |
詢價 | |||
Richtek(立崎) |
23+ |
NA |
26094 |
10年以上分銷經(jīng)驗原裝進口正品,做服務(wù)型企業(yè) |
詢價 | ||
RICHTEK/立锜 |
2450+ |
SOT23-6 |
6540 |
只做原裝正品假一賠十為客戶做到零風(fēng)險!! |
詢價 | ||
RICHTEK |
23+ |
SOP-8 |
10500 |
原裝元器件供應(yīng)現(xiàn)貨支持。咨詢更多現(xiàn)貨庫存,支持樣 |
詢價 | ||
RICHTEK/立锜 |
25+ |
SOP14 |
15000 |
全新原裝現(xiàn)貨,價格優(yōu)勢 |
詢價 | ||
RICHTEK/立锜 |
17+ |
SOT23-6 |
880000 |
明嘉萊只做原裝正品現(xiàn)貨 |
詢價 | ||
RICHTEK |
25+ |
SOT23-6 |
35000 |
原廠原裝,價格優(yōu)勢 |
詢價 |
