TheMP4056is a non-isolated, TRIAC-dimmable, offline LED controller with active PFC. It outputs an accurate LED current for an non-isolated lighting application with a single-stage converter.
The MP4056 implements power-factor correction and works in boundary-conduction mode to reduce MOSFET switching losses.The adaptive dimmer type detection and phase-cut-based dimming control achieves good dimmer compatibility and deep dimming range.
The MP4056 has an integrated charging circuit at the supply pin for fast start-up without a perceptible delay.
With the unique control of DIM, the MP4056 supports color temperature and brightness control for warm sunset dimming application.
The MP4056 has multiple protections that greatly enhance system reliability and safety, including output over-voltage protection, output short-circuit protection, over-current protection, programmable thermal fold-back (MSOP10/SOIC14), ZCD pin short circuit protection, supply-pin under-voltage lockout, and over-temperature protection.
All fault protections feature auto-restart.
The MP4056 is available in SOIC-8/MSOP-10/SOIC-14 package.
特點:
Adaptive Dimmer Type Detection and Phase-Cut-Based Dimming Control Good Dimmer Compatibility and Deep Dimming Range PWM Input Analog Dimming Fast Start-Up without Perceptible Delay Programmable Current Fold-back to Prolong the LED lifetime (NTC) Color Temperature and Brightness Control for Warm Sunset Dimming application Accurate Line & Load Regulation High Power Factor Operates in Boundary Conduction Mode Cycle-by-Cycle Current Limit Over-current Protection Output Over-Voltage Protection Output Short-Circuit Protection ZCD Pin Short-Circuit Protection Over-Temperature Protection Available in SOIC-8/MSOP-10/SOIC-14 Package
應用:
Solid-State Lighting up to 50W Industrial and Commercial Lighting Residential Lighting
受到關鍵設備陸續停產,加上二手設備市場供不應求,且難以完整兜出完整生產線,今年8英寸晶圓代工產能全年吃緊已難避免。加上今年硅晶圓價格看漲,多數上游IC設計廠或IDM廠對8英寸晶圓代工價格逐季調漲已有高度共識,法人看好世界先進受惠最大。
世界先進去年產能利用率幾乎維持滿載投片,但受到新臺幣兌美元匯率升值影響,全年合并營收年減3.6%達249.10億元,歸屬母公司稅后凈利年增18.7%達45.05億元,每股凈利2.75元,符合市場預期。
但由世界先進去年季度營運來看,可看到毛利率及獲利表現在下半年明顯好轉情況,主要是產品組合改變,毛利率較高的電源管理IC占營收比重拉升,如去年第四季電源管理IC占比已達54%。法人預期今年電源管理IC營收占比過半將成常態,有助于毛利率的回升。
世界先進目前MOSFET接單維持強勁,新增LED驅動IC客戶,加上IDM廠的電源管理IC委外訂單維持高檔,目前高壓制程及BCD制程等產能均滿載,元月合并營收21.30億元較去年同期成長8.0%。法人表示,8英寸晶圓代工產能全年吃緊,加上硅晶圓價格看漲,世界先進與客戶協商后已小幅調漲第一季晶圓代工價格,由于產能全年供不應求,價格應可逐季調漲。
8英寸晶圓代工產能吃緊原因,主要是8英寸晶圓制造的部份關鍵設備停產,二手設備市場也買不到完整的設備,更別說要兜出完整的8英寸晶圓生產線幾乎不可能。在此一情況下,8英寸晶圓廠要擴增產能的難度提升不少,但今年包括MOSFET、電源管理IC、指紋辨識IC、MCU等都需要更多8英寸晶圓代工產能支援,在僧多粥少的情況下,業界對于8英寸晶圓代工價格逐季調漲已有高度共識。
世界先進董事長方略日前指出,包括物聯網、感測器、電源管理IC等應用市場需求不斷成長,但8英寸晶圓代工產能卻沒有大幅增加,今年8英寸晶圓代工產能將更為吃緊,世界先進可望維持高產能利用率。世界先進評估建置第4座晶圓廠,只是現在設備商停產8英寸晶圓制造設備,很難買到足夠建置整座8英寸廠的設備。
法人看好世界先進今年營運表現,由于產能利用率預期將全年滿載,加上晶圓代工價格逐季調漲,預估全年營收可望較去年成長1成以上,毛利率更有機會明顯提升并回到2014年水準,全年獲利將超過60億元。世界先進不評論法人預估的財務數字。
公司:深圳市哲瀚電子科技有限公司
聯系人:陳小姐
手機:13714441972
電話:0755-82549527/83259945/13714441972
傳真:0755-83259945
地址:廣東省深圳市福田區中航路都會軒1213