ROHM New Matrix-Type (8-line×24-channel) LED Drivers for Automotive LCD Backlights Enable Independent Control of up to 192 Zones

时间： 2023-07-21 来源：ROHM News

技术问答

ROHM has developed LED driver ICs - the BD94130xxx-M series (BD94130MUF-ME2, BD94130EFV-ME2) - for automotive LCD backlights. The devices support large displays increasingly being used in next-generation car infotainment and instrument clusters.

In recent years, the advancement of ADAS (Advanced Driver Assistance Systems) together with expanding car infotainment functionality have prompted a shift towards higher resolution vehicle displays to improve visibility. As such, LED drivers with a local dimming function capable of turning off only the backlight in dark areas of the LCD improve display screen performance and reduce power consumption. They are now being considered by automotive manufacturers to develop next-generation cockpits. But as the number of zones controlled with conventional direct-type LED drivers by a single IC is less than 100, the number of LED drivers and peripheral components will also increase as automotive displays become larger with more zones. This represents a significant design challenge.

To meet this need, ROHM developed products capable of controlling more zones than conventional ICs -making it possible to reduce the mounting area by reducing the number of LED drivers required. The BD94130xxx-M series of matrix LED drivers combines an 8-line switch controller with a 24-channel current driver - allowing control (dimming) of up to 192 zones mini-LED for backlighting with a single IC. On top of that, the mini-LEDs in each zone can be independently adjusted by using a local dimming function - contributing to a larger contrast ratio, and lower power consumption displays.

For example, with current mainstream 10-inch class infotainment displays that consist of approx. 600 zones, ROHM’s new products enable operation with just one-fourth of the number of LED drivers compared to existing (48-zone) products - decreasing LED driver mounting area by approx. 84%. And this advantage will only increase as screens become larger and the number of zones rises inside next-generation cockpits.

New Products: BD94130xxx-M

ROHM’s BD94130xxx-M series of matrix LED drivers combines a 24-channel current driver with a switch controller that can be divided into 8 lines (Max.). The number of switch controller lines can be selected from among 3 patterns (4, 6, or 8) - via register settings, supporting a variety of specifications based on the number of zones and LED current consumption. In addition, a built-in feedback control function maintains a constant feedback voltage independent of LED temperature characteristics - reducing thermal design man-hours along with the loss ratio.

Applications

ROHM’s new products are equipped with local dimming functionality to support a variety of high-contrast automotive displays.

Electronic mirrors (side/rear view)
Instrument clusters
Car infotainment
Head-up displays (HUDs)

Online Sales Information

Sales Launch Date: April 2023

Product Information

Applicable Part Nos: BD94130MUF-ME2, BD94130EFV-ME2

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【IC】罗姆新开发车载液晶背光用LED驱动器IC BD94130xxx-M，助力提高液晶显示器清晰度并降低功耗

全球知名半导体制造商ROHM开发出适用于在新一代汽车信息娱乐系统和仪表盘等中应用日益广泛的大型显示器的车载液晶背光用LED驱动器IC BD94130xxx-M，仅由1枚IC即可独立控制192个分区，局部调光功能有助于提高显示器的清晰度并降低功耗。

新产品发布时间 : 2023-06-14

ROHM’s New 4ch/6ch LED Drivers for LCD Backlights: Contribution to Lower Power Consumption in Medium to Large Automotive Displays

ROHM developed the 4ch/6ch LED driver ICs, BD83A04EFV-M, BD83A14EFV-M, and BD82A26MUF-M designed for medium to large-size automotive displays in-car infotainment and instrument clusters.

新产品发布时间 : 2023-04-07

ROHM LED 驱动器选型表

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。

Per Channel Drive (Max.)[mA]

Vout (Max.)[V]

Data Input

LED Configuration

Temperature (Min.)[°C]

Temperature (Max.)[°C]

AEC-Q100 (Automotive Grade)

选型表 - ROHM 立即选型

ROHM(罗姆) IC/功率器件/分立式半导体/无源元件/光学器件/模块选型指南

描述- ROHM launched the ComfySIL™ brand for customers involved in the design of functional safety to use products that support SIL (Safety Integrity Level) in a ‘Comfy’ (comfortable) manner, and for social systems' greater safety, security, and convenience to which ROHM can contribute through its products.

型号- DTC143TE3,KA2004-H05N20A,ML62Q20XX,RCJ220N25,SML-S13UT,DTC143TEB,RSX101VYM30,SML-D12M8W(C),SDR,R6002JND4,BD60A00NUX,RB238NS150,SML-D12Y8W,SMLA12BN8T,MG6405WZ,BDJ0GA3VEFJ-M,SML-811UT (A),SML-010VT,BD94130EFV-M,DTA124XM,BM2SC123FP2-LBZ,RS3L110AT,RB298T100,DTC143TCA,RSS060P05,BD71L4LG-1,SFR,BR25A512,RGPR20BM36HR,BD95821MUV,BD6995FV,KD2002-G0JB10A,BU23TD2W,SML-S13VT,BD12IC0WEFJ,BU97941FV,SLI-325YC(W),RQ5L015SP,BH7673G,SML-811UT (C),BD52XXG-2C,BD6046GUL,RGW60TS65HR,BD10KA5WFP,BA03CC0FP,SML-D12Y3W,BM6241FS,BD450S5FP2-C,MH2206WZ,BD63521EFV,BU94702AKV,SML-S13PT,RB168MM200,DTC144WCA,BD22621G-M,SLI-343URC,RS6R035BH,BDJ2FC0WFP,RGT20NL65,DTD123TC,DTA015TUB,BD750L5FP-C,BM521Q25F,R8003KNX,BD52XXG-1 SERIES,SML-D12D8W (C),DTA023YEB,UCR006,BD95514MUV,BD9S200MUF-C,SML-H10PD2B,DTD123TK,RFN6T2D,IMX25,BD80FD0WHFP,R6000ENH,SML-S13RT,BU64253GWZ,BD70GC0VEFJ-M,BD52XXG-2M,RBR2LAM30A,CSL0902DT (C),RBR5L30B,RBR5L30A,RSX501LAM20,RCX300N20,KD2003-F0FW00A,BH76363FV,RQ1E075XN,TFZV,RF4G060AT,BD83A04EFV-M,BV1LC085EFJ-C,BD10IC0WHFV,BU2394KN,BAXXBC0,SML-A12MT (J),BU4094BCF,KR2002-D06B71A,BD33C0AWFP2-C,ML86V76580,DTC114YEB,RQ5E020SP,BD63573NUV,DTA015TEB,BA90BC0,DTC114YE3,SML813BNT,BH1730FVC,DAN222WM,BD68888MUV,BM2P241W-Z,PML100,BU34DV7NUX,DTC143TKA,SCS220AJ,SMLK1,BD33GC0VEFJ-M,SCS220AG,R6511ENX,BDJ6FD0WHFP,SMLK18WBNCW,R6511ENJ,CSL0901UT (C),RX3L07BBG,QS8J2,RF305BM6S,SML-011VT (A),BH1603FVC,RS1E180BN,BD53108G-CZ,DTA124EEB,BD8317GWL,BD3508MUV,RB238NS100,BD950M5EFJ-C,BD450S2FP3-C,SML-S13YT,BD00FC0W,SML-010YT,DTA124EE3,BD50HC5VEFJ-M,BD60HA5VEFJ-,SML-H12D8T(C),BD81870MUF-M,RB168LAM-30,RFUH25TB3S,BD9B600MUV,DTD123YC,BM2P159PF,DTC024XUB,SML-P11DT (R),BD725L05G-C,DTA124ECA,RB168LAM-40,RSS065N06,DTD123YK,RH6E040BG,2SC2412K,BD25IC0V,BD25IC0W,BDJ2FC0W,LBP-602MA2,BD46EXX5G-M SERIES,FMY1A,BD7691FJ,BD82004FVJ-M,BDJ0GA3WNUX,BD450S5WFP2-C,SML-522MY8W,DAN222ZM,BM2P060MF-Z,RFS60TZ6S,DTC114YCA,RBR10BGE30A,RBR40NS60A,BH76809FVM,RRH100P03,SCT3105KL,DTC043ZEB,SCT3105KR,BD9060F-C,RQ6E080AJ,BA15DD0WT,RB168LAM-60,R6035KNZ4,DTC144EU3,2SA1037AK,RESD1CANY,DTC144EUB,SML-D13WW (C),BD2266G-M,DTC023EEB,SML-012PT (A),SML-S13DT,RBS1LAM40A,BD7690FJ,DTA143XCA,SMLP2,BSM180C12P2E202,RGTH60TS65D,BD50C0AFP-C,R6035VNX3,BD99950MUV,RE1J002YN,RF101LAM2S,BM61S41RFV-C,2SCR587D3,BD1HC500HFN-C,BU7205S,2SAR553P,BV1LE080EFJ-C,BV1LC150EFJ-C,SML-011DT,RS3E095BN,BD54105G-CZ,2SAR553R,RQ3E130BN,BU2FSA4WGWL,BD15HC5WEFJ,SML-812MT,DTA143XEB,BD9862MUV,BD52W03G-C,BD48W00G-C,DTA143XE3,SLI-325DU(W),LMR982,SLR343WBN2PT2□□□□□□,LMR981,BD37522FS,RB088BM150,RB088LAM100,2SAR552P,BD26503GUL,R8002KND3,2SCR512P5,QS8K2,BU7465S,RFNL15TJ6S,BD733L2FP-C,BD30KA5FP,LM8391EY,QS8J4,BD90C0AFP2-C,QS8J5,BD68710EFV,LB-402VN,BD50C0AWFP-C,BM1Z103FJ,2SAR554P,BD9060HFP-C,BC848BW,YQ30NL10SE,BR25G640,2SAR554R,RGTV80TS65,RB715FM-40,BD62120JEFJ,LB-402VD,RBR15BM30A,DTA124EKA,BA30JC5T,BA178M05FP,BD800M5WFPJ-C,SMLP2 SERIES,BD33IA5WEFJ,BAJ2DD0,2SCR523EBTL□□□,BDXXHC0WEFJ,DTB513ZM,RSDT27BM,SMLEN3WBC8W,BU33UV7NUX,SML-011UT(A),BU97550KV-M,RF101LAM4S,BM2P121X-Z,TE3004-TP1W00A,LBP-602MK2,RB078BM30S,BD8961NV,BD67173NUX,MG7901WZ,DTD123EK,SCS304AM,BU7461S,SCT3060ALHR,BD30FC0WFP,RB088LAM150,RGW00TS65DHR,YQ20BM10SD,RSS100N03,RQ6E045BN,2SAR552P5,BU7462S,RD3L220SN,BD7J101EFJ-LB,1SS390SMFHT2R,DTD123EC,DAN235FM,RFN2LAM6S,SCS215AJHR,BD65496MUV,KA2002-B05B70A,2SC5824,BU52272NUZ,2SC4102U3,BD9B300MUV,RB558WM,DTC114GU3,SML-D12Y1W,BU33SD2MG-M,RBQ15BM45A,BU7464S,BA178M18FP,RV3C002UN,BA178M05CP,SCS304AG,SLI-570 SERIES,BU29TA2W,SCS304AJ,SML-S13MT,BM63374S-VA,BM63374S-VC,RFN2LAM4S,BDJ0GA3V,BD49EXXG-M,BD3575YFP-M,BDJ0GA3W,BM2P13B1J-Z,BU32TD3W,DTA124EUB,RB168MM150,BA178M18CP,BD18IA5VEFJ-M,RB461FM,BU33SA4WGWL,BV1HLC45EFJ-C,DTA124EU3,SIR-56ST3F,BU18JA2VG-C,BD37068FV-M,RB162VAM-20,BU9794AKV,2SCR574D3,BU32TD2W,RGCL60TS60,BD9615MUV-LB,BM2P151X-Z,BD3814FV,LB-402MN,BD41041FJ-C,BD15GA3WNUX,LB-402MD,2SC5866,BU52077GWZ,SLI-343V8R,SML-D13WW (A),BD9573MUF-M,RB088BM100,BD18336NUF-M,SLA580ENT,VS14VUA1LAM,DTC043ZUB,MR7930,BD6326ANUX,SH2104WN,RSX101MM-30,SCT3030KLHR,BU7487,BU7486,BU7485,BU7481,UMZC6-8NFMFHT106,DTC144EE3,BD50GC0VEFJ-M,PMR18L,RD3R05BBH,DTC144ECA,MCR01,VS13VUA1LAM,MCR03,BD2200GUL,RS1E130GN,BD33GA5VEFJ-LB,BU7475,RQ6E030SP,BP3622,BD14210G-LA,BP3621,BSM180D12P3C007,BD63725BEFV,RBR5L40A,SML-Z14YT (A),BU7465,BA17815FP,BU7464,BU7462,BU7461,BU4051BCF,RCJ700N20,VS24VUA1VWM,BD00HC5VEFJ-LB,BD9408FV,BD00HA3VEFJ-LB,RX3P10BBH,KDZV SERIES,BU1ATD2WNVX,RB168MM100,BD8314NUV,BD9107FVM,BD34700FV,BD5466GUL,RF4E080BN,DTC144VCA,DAP202FM,SML-Z14YT (C),BA05CC0T,BA05CC0W,RF6G035BG,UT6KE5,SML-D13FW (C),BD60HC0VEFJ-M,BM2P134EF,BD00GA5VEFJ-M,BD30KA5WF,BU1JTD3W,BD60GA5VEFJ-LB,BD52XXNVX-2C,SML-D15YW (C),BM2P137TKF,MMBZ27VCLY,SML-811VT(A),BU90005GWZ,DTA123YM,RGWX5TS65D,LM358,ML62Q1714C,BA17815CP,BD16950EFV-C,KD3004-TQFW00A,RBR2LAM40A,DTC114WUA,BD33HA5WEFJ,BD00EA5W,UT6KC5,BD18340FV-M,LM324,ML62Q1713C,MCR10,RQ3G110AT,MNR12,MNR15,MNR14,2SCR586J,MNR18,SML-811VT(C),BM6242FS,BU28SA4WGWL,KA2003-B35N00A,MH2205WZ,RFS30TZ6S,LM339,LAP-601DB,BU7495,CSL1101WBDW,BD63536FJ,MNR02,QS6Z5,MNR04,STM 331U,BU1JTD2W,MC

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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

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ROHM and Nanjing SemiDrive Technology jointly Develop a Reference Design:Utilizing PMICs and SerDes ICs for SoCContributes to spread of smart vehicle cockpits

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厂牌及品类发布时间 : 2024-06-05