R课堂 | LED元器件发光原理科普

时间： 2024-10-15 来源：ROHM（罗姆半导体集团公众号）

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本文的关键要点

当电流流过半导体晶片时，p型半导体的空穴和n型半导体的电子复合，使LED发光。

LED的发光波长会因发光元件的材料及其比例而异。

LED为什么会发光？

LED的发光原理

LED为什么会发光？

在我们的生活中，LED的使用非常广泛（比如显示器和照明等），那么，它们究竟是如何发光的呢？

例如，灯泡和荧光灯是通过灯丝发热和放电现象等间接地将电能转化为光能而发光的，而LED则是通过直接将电能转化为光能来发光的。因此，可以说LED属于电-光转换效率非常高的产品。

本文将为您介绍LED中使用的半导体元件的发光原理。

※在本文中，为了区别于“元件（发光元件）”，我们将封装后的产品称为“LED（或LED产品）”。

LED的发光原理

LED（Light Emitting Diode，发光二极管）中元件的基本结构是p型半导体和n型半导体结合而成的“pn结”半导体。

※p型半导体（+：positive 空穴多的半导体）、 n型半导体（-：negative 电子多的半导体）

在该元件上施加正向电压时，空穴（带正电）和电子（带负电）向p-n结方向移动，两者因复合而消失。此时产生的多余能量会被转化为光能，从而实现发光。这种现象称为“复合发光”。

※电子（带负电）和空穴（带正电）复合释放出多余的能量而发光。

发光元件的材料

常见的二极管主要由Si（硅）和 Ge（锗）等材料制成，但这些单质半导体在电子和空穴复合时不容易发光，因此LED使用的是GaN、GaAs、InP等复合时容易发光的化合物半导体。

通过使这些组合的半导体（比如GaAsP、AlGaAs、InGaAlP、AlGaN等组合）在特定的衬底上晶面平行向外推移生长（外延生长）来获取发光元件的功能。

因材料而异的发光颜色

作为LED元件的材料——化合物半导体，会根据其材料的组成和比例而发出各种波长的光（红色和绿色等可见光、红外光、紫外光等）。

另外，发光颜色还会因复合前后的电子能级而异。因多余而被转化为光的能级能量差（带隙能量）越大，光的波长就越短。

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本文由拾一转载自ROHM（罗姆半导体集团公众号），原文标题为:R课堂 | LED元器件发光原理科普，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。

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型号- SMLEN3BC8T,SML-P12WT (R),MSL0402RGBU,SLI-325URC (W),SLA-580MT,SLR-343VR,SMLVN6RGB1W,SMLVN6RGB1U,SML-S13UT,SMLVN6,SLR343WBN2PT,SML-D12V□8□WT86□□□□,SLR-343VC,SLI-570YT,SML-D12V1W,SML-012YT,SMLZN4BGT (A),CSL0902VT (C),SLI-325DC (W),SLR-325 SERIES,SML-E12UW,SML-012P8T,CSL0901ET (C),SLR-332VR,SML-D12Y8W,CSL07 SERIES,SLR-322YY,SMLA12BN8T,SML811WBCN1W,SML-D15VW,SML-D14WW (A),SLI-580UT,SLR-322YC,SLR-332VC,SML-E12V8W,SML-811UT (A),SML-D13UW (C),SML-010VT,CSL0901PT (C),SML-Z14YT (A),SML-E12D8W,SLR-332 SERIES,SML-012YT (A),SML-D12U8W (C),SML-D15UW,SML-M13YT,SML-825MVW,MSL06 SERIES,SML-D12U1W,SML-013YT,SML-011UT,SML013BNT,SML-D15VW (C),SML-S13VT,SMLK28WBNCW,CSL1103WBXW,SLI-560YT,SMLA12WBN7W,SML-E12U8W,SML-H12Y8T,SML-Z14YT (C),SML-D13UW (A),CSL1901UW,SML-811UT (C),SML-Z14Y4T,SMLP14BCNW,SML-D12P8W (C),SML-P11MT (R),SML-D13FW (C),SLI-343Y8C,SML-D14U2W (A),SML-A1,SML-D13M8W,SLI-430DU,CSL0903UT (C),SML-Z14UT (C),SMLP34 SERIES,SML-A12D8T,SLI-343DC,SML-D15YW (C),SML-D12Y3W,SMLVN6RGBFU1 (C),SML-012UT,SML-P11YT (R),CSL1901VW,SML-H12V8T (C),SML-A12U8T,SLR-343YY,SML-S13PT,SML-P12Y3T (R),SLI-560 SERIES,CSL0901MT,SLI-343Y8Y,CSL10 SERIES,SLR-343YC,SLI-580YT,MSL0104RGB□U1□□□□□□,SML-H12V8T,SLI-343URC,SML-E1 SERIES,SMLP14WBCNIW,SMLVN6RGB7W,SMLD12EN1W,SLR-332YY,SML-Z14UT (A),SML-D12D8W (C),SML-02M SERIES,SLR-332YC,SML-822MV8W,CSL1102WBBW (C),SML-D13Y2W,SMLZ24BN3T (C),CSL1001ET (C),SML-013UT,SML-D13MW (A),SML-522MU8W,P11UT (R),SML-A12V8T,CSL0902MT,CSL0901WT (C),SML-D1,SML-D2,SLI-325 SERIES,SLR-56MC,CSL1101WBDW,SLR-56MG,SLR-56 SERIES,CSL0902DT (C),CSL1901YW,CSL0701DT,SLA560 SERIES,SML-D12W8W (C),SML-E1,SML-D14MW (A),SLR343EN4T,CSL1102WBXW,CSL0902DT,SMLD12E3N1W,SML-D13MW (C),SLI-570U2T,SML-020MDT,SML-Z14DT (C),CSL0901BT,SML-D12U8W,SML-Z14MT (A),SML-ZN SERIES,SML-EN,SML-A12MT (J),SMLZN4EGT (A),SML-D13VW (A),SML,SLA560BN2T,SLA-570MTR,SML813BNT,SML-02M,SLI-325YC (W),SML-Z14V4T,SML-D12W8W (A),SLR-56YC,SML-H12M8T,SML-P1 SERIES,SML-MN SERIES,CSL1101WBDW (C),SMLK1,SML-Z14F4T,SML-D12D8W,SML-D15MW,SMLK18WBNCW,SML-012M8T,CSL0901UT (C),SML-Z14DT (A),CSL0903DT,CSL0902BT,SML-P12DT (R),CSL0902UT (C),SML-011VT (A),CSL19 SERIES,SML-H1,SLI-343DU,SLA580 SERIES,SLR-325DU,SMLEN3WBC8□W1□□□□□□,SLR-56YY,SML-Z14MT (C),SML-P12M2T (R),CSL1901MW,SML-D12FW,SLR-325DC,SML012ENT,CSL04 SERIES,SLI-430MG,SML-S13YT,SML-Z14U4T,SML522BUNW,SML-010YT,SML-D13Y8W,SML-Z14FT (A),SLI-343M8C,SML-012VT (A),SML-D12D1W,SLR-56VR,SLI-343M8G,SLI-343X8 SERIES,SML-811DT (A),CSL1101WBBW (C),SLI-343 SERIES,SMLVN6 SERIES,SMLZ24E2N3T (C),CSL1001BT (C),SLR343 SERIES,SLR-56VC,CSL0701D□□□T5□□□□□□,SLI-343DU (W),SLI-570DT,SML-D12V8W (C),SML-A12Y8T,CSL0901BT (C),SLR-322DU,SLI-325UR (W),CSL0901ET,SML-D12Y8W (C),SML-Z14FT (C),SML-P11DT (R),SML-E12P8W,SLA-570MT,SML-D13FW,SML-D14VW (A),MSL0601RGBU,SML-D15U2W (C),SML-H12D8T (C),SML-M13DT,SLR-322DC,SML-811DT (C),CSL0901DT,SML-P11UT (R),SML-Z14D4T,SML-811WT (C),SML-011YT,CSL,SLA-560MT,SML-D12V8W,SML-522MY8W,SMLA12ENT,SML-D13VW (C),CSL0902ET,SMLD12E2N1W,SML-P12UT (R),SLI-343DC (W),SML-01 SERIES,SLI-430 SERIES,SLI-560DT,SML-M1,CSL1104WBXW,SML-H12P8T,SML-D14YW (A),SMLP36RGBNW,SMLP14,CSL1102WBDW (C),SML-A12WT (J),SML-010DT,SLR-322,SML-D13WW (C),SMLP14 SERIES,SLI-343V8RC,SML-811WT (A),SLI-570Y2T,SML-012PT (A),CSL1103WBDW,SML-A15YT,SML-S13DT,CSL0903DT (C),SML-MN,CSL09 SERIES,SMLP2,SLR-56,CSL0901YT,SML-P12YT (R),SML-E12DW,SLR-343DU,SMLP34,SML-D22MUW,SLI-580DT,SLI-580 SERIES,SLI-343P8G,SMLP36,CSL1901DW,SML-D15DW,SML-D12M1W,SLR-343DC,SML-011DT,SLI-343P8C,CSL0902BT (C),SML-P12Y2T (R),SML-522MUW,SML-012Y8T,SML-A1 SERIES,SLR-332DU,SML-P1,SML-812MT,SLR-325MC,SML-D15MW (C),SML-Z14PT (C),CSL0902YT,SLR-332DC,SLR-325MG,CSL0901WT,SML-011YT (A),SML-D1 SERIES,SML-A12P8T,SLI-343MC,SMLMN2WB1CW (C),SML-Z1 SERIES,SLR343BN4T,SLI-343MG,SLA560WBN2PT,SML-D12P8W,SLR343WBN2PT2□□□□□□,SMLS14BNT,SML-P13PT (R),SML-E12M8W,SML-01,SML-D15U2W,SML-D13U8W,SML-P24MUW (R),CSL0902ET (C),SML-M1 SERIES,CSL0701UT,SLI-343YC (W),CSL1101WBXW,SML-012DT,SML-H12M8T (C),SML-012V8T,SLA580BNT,SMLZN4WBGUW (A),SMLP36 SERIES,SML-Z14PT (A),SLR-322MG,SLI-343YY (W),SLR-322MC,SML-A12M8T,SLR343BN2T,CSL0901VT (C),CSL0416WBCW,SML-H12Y8T (C),SLI-343U8RC,SMLS14ENT,SML-S1,SML-D11YW,CSL1102WBAW (C),CSL0901DT (C),MSL01 SERIES,MSL04 SERIES,SLI-430U2R,CSL19,SMLP2 SERIES,SML-Z14P4T,SML-M13MT,SML-52 SERIES,SLI-325DU (W),CSL0903VT (C),SMLEN3WBC8W,SLA560BN4T,SML-82 SERIES,SLI-343UR (W),CSL0903VT,SML-012DT (A),SML-811VT (A),SML-012D8T,SML-H12D8T,SML-010MT,SML-522MD8W,SLR-322 SERIES,CSL1101WBCW,SLI-325,SML-52,SLI-560,SLI-343YC,CSL0903UT,SLR-343MG,SML-P12MT (R),SML-Z14VT (A),SMLEN3EC8T,SML-D2 SERIES,SML-P12VT (R),SML-D12M8W,CSL11,CSL10,SLR-343MC,SML-Z2 SERIES,SLA-560 SERIES,SML-P13FT (R),SML-81 SERIES,CSL09,CSL07,SMLD12BN1W (C),CSL1101WBBW,SLI-430,SLR-332MG,SMLK18,SLR-325VR,SLI-343D8U,SML-D22YVW,CSL0901PT,SLR-332MC,SML-012U8T,CSL1101WBAW,CSL1104WBAW,SLR-325VC,SML-H12U8T (C),SMLD12WBN1W (C),SML-D12Y1W,SMLP34RGBN1W,CSL1102WBDW,SML-D15DW (C),MSL,SMLMN2ECT (C),SML-H1 SERIES,SML-D12L8W,CSL1104WBCW,SML-D12M8W (C),SML-E12Y8W,SLI-343UR,CSL1104

2024/2/27 - ROHM - 选型指南代理服务技术支持现货查询批量订货查看更多版本

ROHM（罗姆）LED选型指南（中文）

目录- 贴片LED 插件LED

型号- SMLEN3BC8T,MSL0402RGBU,SML-P12WT (R),SLA-580MT,SLI-325URC (W),SLR-343VR,SMLVN6RGB1W,SMLVN6RGB1U,SMLZ24BN3T,SML-S13UT,SMLVN6,SLR343WBN2PT,SML-D12V□8□WT86□□□□,SLI-570YT,SLR-343VC,SLR343BD2T,SML-012YT,SML-D12V1W,SMLZN4BGT (A),SLI-325DC (W),SLR-325 SERIES,SML-E12UW,SML-012P8T,SLR-332VR,CSL07 SERIES,SML-D12Y8W,SLA580EN4T,SLR-322YY,SML811WBCN1W,SMLA12BN8T,SLA560BC4T,1SML-A12UT (J),SML-D14WW (A),SML-D15VW,SLI-580UT,SLR-322YC,SLR-332VC,SML-E12V8W,SMLM22BN1T (C),SML-811UT (A),SML-010VT,SML-Z14YT (A),SML-E12D8W,SLR-332 SERIES,SML-012YT (A),SML-D15UW,SML-M13YT,SML-825MVW,MSL06 SERIES,SLA-580,SML-013YT,SML-D12U1W,SML-011UT,SML013BNT,SLA580ECT,SML-S13VT,CSL1103WBXW,SLI-560YT,SMLA12WBN7W,SML-E12U8W,SLA-570,SML-H12Y8T,SML-D13UW (A),SML-Z14Y4T,SMLP14BCNW,SML-P11MT (R),SLI-343Y8C,SML-A1,SML-D14U2W (A),SML-D13M8W,SLI-430DU,SMLP34 SERIES,SLA-560,SML-A12D8T,SLI-343DC,SML-D12Y3W,SML-012UT,SML-P11YT (R),SCM-013RT,SLA-580 SERIES,SML-A12U8T,SLR-343YY,SML-S13PT,SML-P12Y3T (R),SLI-560 SERIES,CSL0901MT,SLA560BD2T,SLI-343Y8Y,CSL10 SERIES,SLR-343YC,SLI-580YT,MSL0104RGB□U1□□□□□□,SLD430 SERIES,SML-H12V8T,SLI-343URC,SML-E1 SERIES,SMLP14WBCNIW,SMLVN6RGB7W,SMLD12EN1W,SLR-332YY,SML-02MDT,SML-Z14UT (A),SLR343WBD2PT,SLR-332YC,SML-822MV8W,SCM-014TB,SML-D13Y2W,SMLZ24BN3T (C),CSL1001ET (C),1SML-E12UW,SML-013UT,SML-D13MW (A),SML-522MU8W,SML-A12V8T,CSL0902MT,SML-D1,SML-S13RT,SML-D2,SLI-325 SERIES,SLR-56MC,SML-010PT,SLR-56MG,SLR-56 SERIES,CSL0701DT,SLA560 SERIES,SLA560EC4T,SML-E1,SML-D14MW (A),SLR343EN4T,CSL0902DT,SMLD12E3N1W,SLI-570U2T,SML-020MDT,CSL0901BT,SML-D12U8W,SML-Z14MT (A),SML-ZN SERIES,SML-EN,SML-A12MT (J),SMLZN4EGT (A),SLD430BN2W,SML-D13VW (A),SML,SLA560BN2T,SML813BNT,SLI-325YC (W),SML-D12W8W (A),SML-Z14V4T,SLR-56YC,SML-H12M8T,SML-P1 SERIES,SLD430WBD2PT,SML-MN SERIES,SMLK1,SML-Z14F4T,SML-D12D8W,SML-D15MW,SLD430,SMLK18WBNCW,SML-012M8T,CSL0903DT,SML-Z14DT (A),CSL0902BT,SML-P12DT (R),SML-011VT (A),SMLM22EN1T (C),SML-H1,SLI-343DU,SLA580 SERIES,SLR-325DU,SLR-56YY,SMLEN3WBC8□W1□□□□□□,SMLM22WBN1CW1T (C),SML-P12M2T (R),SML-D12FW,SLR-325DC,CSL04 SERIES,SML012ENT,SLI-430MG,SML-02MDT SERIES,SML-S13YT,SML-Z14U4T,SML522BUNW,SML-010YT,SML-D13Y8W,SML-Z14FT (A),SLI-343M8C,SML-012VT (A),SML-D12D1W,SLR-56VR,SLI-343M8G,SLI-343X8 SERIES,SML-811DT (A),SML-810TB,SLI-343 SERIES,SMLVN6 SERIES,SMLZ24E2N3T (C),CSL1001BT (C),SLR343 SERIES,SLR-56VC,SLI-343DU (W),CSL0701D□□□T5□□□□□□,SLI-570DT,SML-A12Y8T,SLR-322DU,SLI-325UR (W),CSL0901ET,SML-P11DT (R),SML-E12P8W,SLA-570MT,SML-D13FW,MSL0601RGBU,SML-D14VW (A),SML-M13DT,SLR-322DC,CSL0901DT,SML-P11UT (R),SML-Z14D4T,SML-011YT,CSL,SLA-560MT,SML-522MY8W,SML-D12V8W,SMLA12ENT,CSL0902ET,SMLD12E2N1W,SML-P12UT (R),SLI-343DC (W),SML-01 SERIES,SLI-430 SERIES,SLI-560DT,SML-M1,CSL1104WBXW,SML-H12P8T,SML-D14YW (A),SMLP36RGBNW,SHL-012WT (A),SMLP14,SML-A12WT (J),SLA580,SML-010DT,SLR-322,SMLP14 SERIES,SLI-343V8RC,SML-811WT (A),SLI-570Y2T,SML-012PT (A),CSL1103WBDW,SML-A15YT,SML-S13DT,SML-MN,CSL09 SERIES,SMLP2,SLR-56,CSL0901YT,SML-P12YT (R),SML-E12DW,SLR-343DU,SML-S15R2T,SMLP34,SML-D22MUW,SLI-580DT,SLI-580 SERIES,SLI-343P8G,SMLP36,SML-D12M1W,SML-D15DW,SLR-343DC,SLA560,SML-011DT,SLA580BC4T,SLI-343P8C,SML-P12Y2T (R),SML-522MUW,SML-012Y8T,SML-A1 SERIES,SLR-332DU,SLR343ECT,SMLK18WBJCW,SML-P1,SML-812MT,SLR-325MC,CSL0902YT,SLR-325MG,SLR-332DC,CSL0901WT,SML-011YT (A),SML-D1 SERIES,SML-A12P8T,SLI-343MC,SMLMN2WB1CW (C),SML-Z1 SERIES,SLR343BN4T,SLA560WBN2PT,SLI-343MG,SML-D12P8W,SLR343WBN2PT2□□□□□□,SMLS14BNT,1SML-A12WT (J),SML-01,SML-E12M8W,SML-P13PT (R),SML-D15U2W,SML-D13U8W,SML-P24MUW (R),SML-M1 SERIES,CSL0701UT,SLI-343YC (W),SML-012DT,SLA560ECT,SLA560WBD2PT,SML-012V8T,SLA580BNT,SMLP36 SERIES,SMLZN4WBGUW (A),SML-H10TB,SML-Z14PT (A),SLR-322MG,SLI-343YY (W),SLR-322MC,SML-A12M8T,SLR343BN2T,CSL0416WBCW,SLI-343U8RC,SMLS14ENT,1SML-A12DT (J),SML-S1,SLR343EC4T,SML-D11YW,MSL01 SERIES,1SML-E12DW,MSL04 SERIES,SLI-430U2R,SMLP2 SERIES,SML-Z14P4T,SML-52 SERIES,SML-M13MT,SLI-325DU (W),SMLEN3WBC8W,SLA560BN4T,SML-82 SERIES,D12W8W (A),SLI-343UR (W),CSL0903VT,SML-012DT (A),SML-811VT (A),SML-012D8T,SML-H12D8T,CSL1001BT,SML-010MT,SML-522MD8W,SLR-322 SERIES,SLI-325,SML-52,SLI-560,SLI-343YC,CSL0903UT,SLR-343MG,SML-P12MT (R),SML-Z14VT (A),SML-D2 SERIES,SMLEN3EC8T,SML-D12M8W,SML-P12VT (R),CSL11,CSL10,SLR-343MC,SML-Z2 SERIES,SLA-560 SERIES,SML-81 SERIES,SML-P13FT (R),CSL09,CSL1103SB11W (C),1SML-A12MT (J),CSL07,SML-M13RT,SLA580BCT,CSL04,SLI-430,SLR-332MG,SMLK18,SLI-343D8U,SLR-325VR,SML-D22YVW,CSL0901PT,SLR-332MC,SML-012U8T,CSL1101PB11W (C),SLI-343X8,CSL1104WBAW,SLR-325VC,CSL1103BAT (C),SML-D12Y1W,SMLP34RGBN1W,MSL,SLA580EC4T,SML-H1 SERIES,SMLMN2ECT (C),CSL1104WBCW,SML-D12L8W,SML-E12Y8W,SLI-343UR,CSL1104WBBW,SML-S1 SERIES,CSL11 SERIES,SLI-570 SERIES,SML-81,CSL1001ET,SML-82,SML-S13MT,SMLZ24E2N3T,SML-011DT (A),SML-M13PT,SML-H12U8T,SML-EN SERIES,SMLK1 SERIES,CSL0901VT,SML-020MYT,SLR-322VR,SLR343WBN2T,MSL01,SLI-343URC (W),MSL04,CSL1104WBDW,SLI-570UT,MSL06,SLR-343 SERIES,SML-Z1,SML-D13DW (A),SML-Z2,SLI-343U8R,SLR343BC4T,SLR-322VC,SML-Z14M4T,SLR343BCT,SML-A12DT (J),CSL0901UT,SMLP14E

2022/5/16 - ROHM - 选型指南代理服务技术支持现货查询批量订货

ROHM（罗姆）LED选型指南（中文）

目录- 贴片LED 插件LED

型号- CSL1103WBAW (C),SMLEN3BC8T,SML-P12WT (R),MSL0402RGBU,SLA-580MT,SLI-325URC (W),SLR-343VR,SML522BU1W,SML-S13UT,SMLVN6,SML-D12V□8□WT86□□□□,SLR-343VC,SLI-570YT,SLR343BD2T,SML-D12V1W,SML-012YT,SMLZN4BGT (A),SML-Y18U2T (C),SLI-325DC (W),SLR-325 SERIES,SML-E12UW,SML-012P8T,SLR-332VR,SML-D12Y8W,CSL07 SERIES,SLR-322YY,SLA560BC4T,SML-D14WW (A),SML-D15VW,SLI-580UT,SLR-322YC,SLR-332VC,SML-E12V8W,SML-811UT (A),SML-010VT,CSL1104WBAW (C)5M)〉,SML-Z14YT (A),SMLS14EET,SML-E12D8W,SLR-332 SERIES,SML-012YT (A),SML-D15UW,SMLZ14EGT (A),SML-M13YT,SML-825MVW,CSL1301R2W,MSL06 SERIES,SLA-580,SML-D12U1W,SML-013YT,SML-011UT,SLA580ECT,SLR-322 SERIES (DIFFUSED),SML-S13VT,SLI-560YT,SML-E12U8W,SLA-570,SML-H12Y8T,SML-D13UW (A),SMLK2 SERIES,SML013WBDW,SML-Z14Y4T,SML-P11MT (R),SLI-343Y8C,SML-D14U2W (A),SML-A1,SML-D13M8W,CSL1101SB11W (C),SLI-430DU,CSL1001R2W,CSL0902PT,SMLP34 SERIES,SLA-560,SML-A12D8T,SLI-343DC,SML-D12Y3W,SML-P11YT (R),SML-012UT,SCM-013RT,SLA-580 SERIES,SML-A12U8T,SLR-343YY,SML-S13PT,SML-P12Y3T (R),SLI-560 SERIES,CSL0901MT,SLA560BD2T,SLI-343Y8Y,CSL10 SERIES,SLR-343YC,SLI-580YT,MSL0104RGB□U1□□□□□□,SLD430 SERIES,SML-H12V8T,SLI-343URC,SML-E1 SERIES,SMLVN6RGB7W,SMLD12EN1W,SLR-332YY,SML-02MDT,SML-Z14UT (A),SLR343WBD2PT,SLR-332YC,SML-822MV8W,SCM-014TB,SML-D13Y2W,SMLZ24BN3T (C),SMLP34RGB2W,CSL1001ET (C),SML-D13MW (A),SML-013UT,SMLVN6RGB6W,SMLVN6RGB6U,SML-522MU8W,SLA580 BC4T,SML-A12V8T,CSL0902MT,SML-S13RT,SML-D1,CSL1301TB,SML-D2,SLI-325 SERIES,SLR-56MC,SML-010PT,SLR-56MG,SLR-56 SERIES,SML012EC4T,CSL0701DT,SLA560 SERIES,SLA560EC4T,SML-E1,SML-D14MW (A),CSL0902DT,SMLD12E3N1W,SLI-570U2T,SML-020MDT,CSL0901BT,SLR343/ECT,SML-D12U8W,SML-Z14MT (A),SML-ZN SERIES,SML-EN,SML-A12MT (J),SML-D13VW (A),SMLA12WBC7W,CSL1001TB,SLI-325YC (W),SMLMN2PB1CW (C),SML-D12W8W (A),SML-Z14V4T,SLR-56YC,SML-H12M8T,SML-P1 SERIES,SLD430WBD2PT,SML-MN SERIES,SMLK2,SMLK1,SML-Z14F4T,SML-D12D8W,SLD430,SML-012M8T,SML-Z14DT (A),CSL0903DT,CSL0902BT,SML-P12DT (R),SMLK28WBJCW,SML-011VT (A),SML-H1,SLI-343DU,SLA580 SERIES,SLR-325DU,SMLEN3WBC8□W1□□□□□□,SLR-56YY,SML-P12M2T (R),SML-D12FW,SLR-325DC,CSL04 SERIES,SLI-430MG,SML-S13YT,SML-02MDT SERIES,SML013BDT,SML-Z14U4T,SML-D13Y8W,SML-010YT,SML-Z14FT (A),SMLP13EC8T,SLI-343M8C,SML-012VT (A),SML-D12D1W,SLR-56VR,SLI-343M8G,SLI-343X8 SERIES,SML-811DT (A),SML-810TB,SLI-343 SERIES,SMLVN6 SERIES,SMLZ24E2N3T (C),CSL1001BT (C),SLR343 SERIES,SLR-56VC,CSL0701D□□□T5□□□□□□,SLI-343DU (W),SLI-570DT,SML-A12Y8T,CSL0901R2T,SLR-322DU,SLI-325UR (W),CSL0901ET,SML-P11DT (R),SML-E12P8W,SLA-570MT,SML-D13FW,SML-D14VW (A),MSL0601RGBU,SML-M13DT,SLR-322DC,CSL0901DT,SML-P11UT (R),SML-Z14D4T,CSL1201R2T,SML-011YT,SLA-560MT,SML-D12V8W,SML-522MY8W,CSL0902ET,SMLD12E2N1W,SML-P12UT (R),SLI-343DC (W),SLR343WBD2PT2□□□□□□,SML-01 SERIES,SLI-430 SERIES,SLI-560DT,SMLZ14BGT (A),SML-M1,SML-H12P8T,SML-D14YW (A),SML012BCT,SMLP14,SLA580 EC4T,SML-A12WT (J),SLA580,SML-010DT,SLR-322,SLI-343V8RC,SMLP14 SERIES,SML-811WT (A),SLI-570Y2T,SML-012PT (A),SML-A15YT,SML-S13DT,SML-MN,CSL09 SERIES,SMLP2,SLR-56,CSL0901YT,SLR-322 (DIFFUSED),SML-P12YT (R),SML-E12DW,SLR-343DU,SML-S15R2T,SMLP34,SML-D22MUW,SLI-580DT,SLI-580 SERIES,SLI-343P8G,SMLP36,SML-D12M1W,SML-D15DW,SLR-343DC,SLA560,SML-011DT,SLA580BC4T,SLI-343P8C,SML-P12Y2T (R),SML-522MUW,SML-012Y8T,SLR-332DU,SML-A1 SERIES,SLR343ECT,SMLK18WBJCW,SML-P1,SML-812MT,SLR-325MC,CSL0406WBCW,CSL0902YT,SLR-332DC,SLR-325MG,SML-011YT (A),CSL0901WT,SML-D1 SERIES,SML-A12P8T,SLI-343MC,SMLMN2WB1CW (C),SML-Z1 SERIES,SLI-343MG,SML-D12P8W,SMLA13BC8T,SMLK18WBJDW,SML-P13PT (R),SML-E12M8W,SML-01,SML-D15U2W,SLA580 ECT,SML-D13U8W,SML-P24MUW (R),SML-M1 SERIES,CSL0701UT,SLI-343YC (W),SML-012DT,SLA560ECT,SLA560WBD2PT,SML-012V8T,SMLZN4WBGUW (A),SMLP36 SERIES,SMLP13BC8T,SML-Z14PT (A),SML-H10TB,SLR-322MG,SLI-343YY (W),SLR-322MC,SML-A12M8T,SLI-343U8RC,SML-S1,SLR343EC4T,SML012ECT,SLI343V□8RC3F□□□□□,SML-D11YW,CSL1102WBAW (C),MSL01 SERIES,MSL04 SERIES,SLI-430U2R,SMLP2 SERIES,SML-Z14P4T,SML-M13MT,SML-52 SERIES,SML813WBC8W,SLI-325DU (W),SMLEN3WBC8W,SML-82 SERIES,SMLMN3WB2CW (C),SLI-343UR (W),SML-012DT (A),CSL0903VT,SML-811VT (A),SML-012D8T,SML-H12D8T,SML-010MT,SML-522MD8W,SLR-322 SERIES,SLI-325,SML-52,SMLS14BET,SLI-560,SLI-343YC,SMLMN2SB1AW (C),CSL0903UT,SLR-343MG,SML-P12MT (R),SML-Z14VT (A),SML-D2 SERIES,SML-P12VT (R),SML-D12M8W,CSL11,CSL10,SLR-343MC,SML-Z2 SERIES,SLA-560 SERIES,SML-P13FT (R),SML-81 SERIES,CSL1103SB11W (C),CSL09,SML-M13RT,CSL07,SLA580BCT,CSL04,SLI-430,SLR-332MG,SLI-343D8U,SLR-325VR,SML-D22YVW,CSL0901PT,SLR-332MC,SML-012U8T,SLR343WBC7T,SLI-343X8,SLR-325VC,SML-D12Y1W,SMLP34RGBN1W,SLR-322 SERIES (CLEAR),SLA580EC4T,SMLMN2ECT (C),SML-H1 SERIES,SML-D12L8W,SML812BCT,SML-Y1,SML-E12Y8W,SLI-343UR,SML-S1 SERIES,SLI-570 SERIES,CSL11 SERIES,SML-81,SML-S13MT,SML-82,SML-M13PT,SML-011DT (A),SML-H12U8T,SML-EN SERIES,SLR343BC7T,SMLK1 SERIES,CSL0901VT,SML-020MYT,SLR-322VR,MSL01,SLI-343URC (W),MSL04,CSL1101WBAW (C),SLI-570UT,SLR-343 SERIES,MSL06,SML-Z1,SML-D13DW (A),SLI-343U8R,SML-Z2,SLR343BC4T,SLR-322VC,SML-Z14M4T,SMLA12EC6T,SLR343BCT,SML-A12DT (J),SML-Y1 SERIES,CSL0902WT,CSL0901UT,SLR

2021 - ROHM - 选型指南代理服务技术支持现货查询批量订货

作为LED灯具的“心脏”，LED驱动芯片在实现高效、稳定、智能照明方面发挥着至关重要的作用

现代照明技术的浪潮中，LED驱动芯片以其卓越的性能和广泛的应用前景，正逐渐成为行业的焦点。作为LED灯具的“心脏”，LED驱动芯片在实现高效、稳定、智能照明方面发挥着至关重要的作用。 LED驱动芯片，全称为发光二极管驱动芯片，是一种专为LED灯具设计的集成电路。它的主要功能是精确地控制LED的电流、电压和功率等参数，从而确保LED灯具在各种环境下都能稳定、高效地工作。

2024-05-28 - 应用方案代理服务技术支持现货查询批量订货

专为显示器背光设计的升压型4通道LED驱动芯片OB3361，单通道最大电流能力达320mA

随着LED技术成熟发展，为了达到更高的对比度和更好的显示效果，中高端显示器应用对调光性能提出了更高的要求：多通道背光系统，采用模拟调光模式时通道匹配度优于1%；特别当输出电流降低到较小亮度（如5mA）时，要求通道之间电流匹配度优于3%。为满足此应用要求，昂宝电子On-Bright推出了高性能、高性价比LED显示器背光驱动方案OB3361。

2024-09-01 - 产品代理服务技术支持现货查询批量订货

关于LED元器件的知识

ED是通过直接将电能转化为光能来发光的。因此，可以说LED属于电-光转换效率非常高的产品。本文介绍了LED中使用的半导体元件的发光原理。

2024-09-25 - 技术探讨代理服务技术支持现货查询批量订货

ROHM（罗姆）LED驱动器选型指南（中文）

描述- 罗姆为市场提供各种LED驱动器，主要用于照明、背光源、闪光光源、显示设备及车载设备。提供各种AC/DC和DC/DC LED驱动器及恒流LED驱动器。

型号- BD8389FV-M,BD9470AFM,BD9394EFV,BD83733HFP-M,BD18364EFV-M,BD83812EFV-M,BD9411F,BD8388FV-M,BD26503KS2,BD9483F,BD2606MVV,BD18326NUF-M,BD81A44MUV-M,BD60A60NUX,BD83A04EFV-M,BD9422EFV,BD18333EUV-M,BD9483FV,BD521GOFJ,BM520Q15F,BD18347AEFV-M,BD83732HFP-M,BD18395EFV-M,BD83740HFP-M,BD65D00MUV,BD60A00NUX,BD18343FV-M,BD18327EFV-M,BD9486F,BD6586MUV,BD18351EFV-M,BM531Q11,BD81A24EFV-M,BD18332EUV-M,BD8374HFP-M,BD2801MUV,BU16501KS2,BD18342FV-M,BD18341FV-M,BD83A24MUF-M,BD94130MUF-M,BD81A24MUV-M,BD94130EFV-M,BD9409F,BD6142AMUV,BD18353EFV-M,BD8381AEFV-M,BD8374EFJ-M,BD18340FV-M,BD9413F,BD83A14EFV-M,BD18398EUV-M,BM521Q25F,BD1604MUV,BD2802GU,BD81A24MUF-M,BD18330EFV-M,BD1754HFN,BD12801MUF-M,BD18362EFV-M,BD18397RUV-M,BD18353MUF-M,BD18337EFV-M,BD65B60GWL,BD18336NUF-M,BD8372HFP-M,BD9408FV,BD94062F,BD18345EFV-M,BD81A76EFV-M,BD82A26MUF-M,BD18397EUV-M,BD7757MWX,BD81A44EFV-M,BD92111F,BD9416FS,BD2812GU,BD9397EFV,BD18398RUV-M,BD6583MUV-A,BD93942F,BD2808MUV-M,BD83A14MUF-M,BD9420F,BD81A74EFV-M,BD83816EFV-M,BD81A74MUV-M,BD18347EFV-M,BD6071HFN,BD82A16MUF-M,BD26503GUL,BD8372UEFJ-M,BD9479FV

2024/2/27 - ROHM - 选型指南代理服务技术支持现货查询批量订货查看更多版本

ROHM（罗姆）LED驱动器选型指南（中文）

目录- LED驱动器

型号- BD8389FV-M,BD9470AFM,BD83733HFP-M,BD9394EFV,BD18364EFV-M,BD83812EFV-M,BD9411F,BD8388FV-M,BD26503KS2,BD18326NUF-M,BD2606MVV,BD9483F,BD81A44MUV-M,BD60A60NUX,BD83A04EFV-M,BD9422EFV,BD9483FV,BD521GOFJ,BM520Q15F,BD18347AEFV-M,BD83732HFP-M,BD18395EFV-M,BD83740HFP-M,BD65D00MUV,BD60A00NUX,BD18343FV-M,BD18327EFV-M,BD18351EFV-M,BD6586MUV,BD9486F,BM531Q11,BD81A24EFV-M,BD8374HFP-M,BU16501KS2,BD18342FV-M,BD18341FV-M,BD81A24MUV-M,BD18353EFV-M,BD6142AMUV,BD8381AEFV-M,BD9409F,BD8374EFJ-M,BD18340FV-M,BD9413F,BM521Q25F,BD9421F,BD1604MUV,BD2802GU,BD9470AEFV,BD81A24MUF-M,BD1754HFN,BD12801MUF-M,BD18362EFV-M,BD18337EFV-M,BD18353MUF-M,BD18397RUV-M,BD18336NUF-M,BD65B60GWL,BD8372HFP-M,BD9408FV,BD18345EFV-M,BD94062F,BD81A76EFV-M,BD82A26MUF-M,BD7757MWX,BD81A44EFV-M,BD92111F,BD9416FS,BD9394FP,BD2812GU,BD9416F,BD18398RUV-M,BD9397EFV,BD6583MUV-A,BD2808MUV-M,BD93942F,BD9420F,BD81A74EFV-M,BD83816EFV-M,BD81A74MUV-M,BD18347EFV-M,BD8372EFJ-M,BD6071HFN,BD26503GUL,BD6164GUT,BD9479FV

2023/2/22 - ROHM - 选型指南代理服务技术支持现货查询批量订货

ROHM（罗姆） LED驱动器选型指南（中文）

目录- LED驱动器

型号- BD8389FV-M,BD9470AFM,BD9394EFV,BD83733HFP-M,BD9411F,BD8388FV-M,BD26503KS2,BD9483F,BD2606MVV,BD18326NUF-M,BD81A44MUV-M,BD60A60NUX,BD9422EFV,BD9483FV,BD521GOFJ,BM520Q15F,BD18347AEFV-M,BD93941FP,BD94121F,BD83732HFP-M,BD18395EFV-M,BD83740HFP-M,BD65D00MUV,BD60A00NUX,BD8379EFV-M,BD18343FV-M,BD18327EFV-M,BD9486F,BD6586MUV,BD18351EFV-M,BM531Q11,BD93941EFV,BD81A24EFV-M,BD8374HFP-M,BU16501KS2,BD18342FV-M,BD18341FV-M,BD81A24MUV-M,BD9409F,BD6142AMUV,BD18353EFV-M,BD8381AEFV-M,BD8374EFJ-M,BD18340FV-M,BD9413F,BM521Q25F,BD9421F,BD83740EFJ-M,BD9470AEFV,BD1604MUV,BD2802GU,BD81A24MUF-M,BD1754HFN,BD18362EFV-M,BD18353MUF-M,BD18337EFV-M,BD6072HFN,BD65B60GWL,BD18336NUF-M,BD8372HFP-M,BD9408FV,BD94062F,BU26507GUL,BD18345EFV-M,BD81A76EFV-M,BD7757MWX,BD81A44EFV-M,BD92111F,BD9416FS,BD9394FP,BD9416F,BD2812GU,BD9397EFV,BD6583MUV-A,BD93942F,BD2808MUV-M,BD9420F,BD81A74EFV-M,BD81A74MUV-M,BD18347EFV-M,BD8372EFJ-M,BD6071HFN,BD26503GUL,BD9479FV,BD6164GUT,BD94122F,BD81A44MUF-M

2022/5/13 - ROHM - 选型指南代理服务技术支持现货查询批量订货

【选型】30V输出电压的升压LED驱动芯片STI9287CA用于显示器，可P2P兼容G5126TB1U

某客户的显示器项目上原本用的是G5126TB1U的升压LED驱动芯片，但是研发过程中客户希望可以帮忙找能P2P兼容的物料作为备选方案，本文给客户推荐拓尔微升压LED驱动芯片STI9287CA。

2022-05-28 - 器件选型代理服务技术支持现货查询批量订货

打算用1mA电流驱动使LED数字显示器发光，可以吗？

要使用1mA电流驱动的话，建议选用高亮度LED数字显示器。这种情况，应当在电路设计方面采取相应措施，使得实际通过LED元件的电流的偏差不会比设定电流大。另外，还是不提倡用1mA以下电流来驱动LED。

2024-08-30 - 技术问答代理服务技术支持现货查询批量订货

【产品】3路LED呼吸灯控制器实现绚丽多彩呼吸灯方案

SGM31323 和SGM31324每路驱动最大24mA 电流以及192 阶调光,可实现LED 混色效果及自主呼吸功能。

2017-03-23 - 新产品代理服务技术支持现货查询批量订货

【IC】信路达推出LED照明驱动器XD3914，输入耐受±35V，输出电流可编程范围为2mA至30mA

XD3914是一种单片集成电路，可感测模拟电压电平并驱动10个LED，提供线性模拟显示。一个引脚脚将显示从移动的点更改为条形图。此功能允许整个系统在3V以下运行。XD3914的多功能性设计使得控制器的可视报警和扩展的刻度功能很容易添加到显示系统中。该电路可以驱动多种颜色的LED，或小电流白炽灯。许多XD3914可以“链接”起来，形成20到100段以上的显示。