【应用】圣邦微单路LED闪光驱动器SGM37892A导入智能安全帽,最大闪光灯驱动电流1240mA
为低电压便携式设备闪光应用选择合适的LED驱动器方案是设计人员面临的一项挑战,因为既要考虑延长电池使用时间,在一些智能安全帽闪光光源通常使用高亮度LED。因此,这些应用需要优化的驱动器解决方案,使用低电压便携式LED驱动器拓扑结构,推荐圣邦微(SGMICRO)的SGM37892A,我们先看一下它们的应用框图:
SGM37892A是一款单路LED闪光灯驱动器,最大闪光灯驱动电流可达1240mA,可满足高亮度LED的需求,工作电压是2.7V至5.5V,对于4.2V的电池供电刚好满足,同时它是基于N沟道MOSFET电流控制结构,配合新型的正向压降LED,在电池的平台电压范围内可不必配套升压电路维持恒流,这在减少系统成本的同时避免了开关电磁干扰,其它内部怀电结构允许LED负极接地,有利于散热。综上所述,SGM37892A非常适合作为闪光LED的驱动器应用。
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SGMicro(圣邦微) SGM37891 单路,无电感具有手电筒模式的闪光驱动器 数据手册
SGM37891是一款单路LED闪光灯驱动器,具备手电筒模式。它内置恒流源和必要保护电路,无需额外升压电路即可在锂离子电池电压范围内维持恒流输出,降低系统成本并减少电磁干扰。产品支持多种保护和控制功能,包括闪光超时保护、碰撞躲避监测、过温保护和短路保护。
SGMICRO - 单路,无电感具有手电筒模式的 LED 闪光驱动器,SGM37891YUDT6G/TR,SGM37891A,SGM37891,SGM37891AYUDT6G/TR,SGM37891AYTN6G/TR,SGM37891YTN6G/TR,智能电话,网络相机,平板电脑
具有1.5A高端电流源的SGM37863A无电感LED闪光驱动器
SGM37863A是一款紧凑型、高度可定制的单LED闪光驱动器,适用于2.7V至5.5V的输入电压范围。它支持高达1.5A的恒流源,具有灵活的工作模式设置和电流调整功能,适用于智能手机、平板电脑和其他便携式设备。
SGMICRO - 无电感LED闪光灯驱动器,SINGLE LED FLASH DRIVER,INDUCTORLESS LED FLASH DRIVER,单路LED闪光灯驱动器,SGM37863A,SGM37863AYG/TR,ACTION CAMERAS,TABLETS,IR LED DRIVER,PORTABLE INTERNET DEVICES AND ACCESSORY,平板,智能手机,SMART PHONES,便携式互联网设备和附件,运动相机,红外发光二极管驱动器
SGMICRO LED闪光灯驱动器选型表
低压的1或2通道LED闪光灯驱动芯片,最大2A驱动电流,支持使能关断
产品型号
|
品类
|
CH
|
VIN (Min)(V)
|
VIN (Max)(V)
|
Output Current(mA)
|
SHDN Iq(μA)
|
Frequency(MHz)
|
Package
|
SGM3141B
|
Flash LED Drivers
|
1
|
2.7
|
5.5
|
700
|
1
|
2.2
|
TDFN-3×3-10L
|
选型表 - SGMICRO 立即选型
带1.5A高端电流源的SGM37863同步升压LED闪光灯驱动器
SGM37863是一款单LED闪光驱动器,具有紧凑和高度可定制的设计。它支持从16mA到1.5A的恒定电流LED源,适用于闪光模式和手电筒模式,具有128级可调。该产品采用同步Boost转换器,具有2MHz或4MHz的固定频率,以自动调整输出电压,确保电流源至少有最小头房电压VHR。它还具有I2C接口、硬件闪光使能引脚(STROBE)、可选的开关频率和Boost电流限制,以及多种保护功能。
SGMICRO - SYNCHRONOUS BOOST LED FLASH DRIVER,SINGLE LED FLASH DRIVER,同步升压LED闪光灯驱动器,单路LED闪光灯驱动器,SGM37863,SGM37863YG/TR,ACTION CAMERAS,TABLETS,PORTABLE INTERNET DEVICES ACCESSORY,IR LED DRIVER,平板,智能手机,便携式互联网设备附件,SMART PHONES,运动相机,PORTABLE INTERNET DEVICES,便携式互联网设备,红外发光二极管驱动器
SGM37893A 单路,无电感具有手电筒模式的LED闪光驱动器 数据手册
SGM37893A是一款单路LED闪光灯驱动器,具备手电筒模式。它内置恒流源和保护电路,无需额外升压电路即可在2.7V至5.5V的电压范围内工作。该产品具有多种电流调节选项、超时保护和过温保护等功能。
SGMICRO - 单路,无电感具有手电筒模式的 LED 闪光驱动器,SGM37893A,SGM37893AYUDT6G/TR,智能电话,网络相机,平板电脑
【产品】无电感具有手电筒模式的单路LED闪光驱动器SGM37892
圣邦微电子的SGM37892是一款单路LED闪光灯驱动器,基于NMOSFET电流控制结构,配合新型的低正向压降LED,在锂充电电池的平台电压范围内可不必配套升压电路维持恒流,这在减少系统成本的同时避免了开关电磁干扰。其内部恒流源结构允许LED负极接地,有利于散热。
SGMicro(圣邦微) SGM37892 单路,无电感具有手电筒模式的LED闪光驱动器 数据手册
SGM37892是一款单路LED闪光灯驱动器,具备手电筒模式。它内置恒流源和必要的保护及控制电路,适用于2.7V至5.5V的锂离子电池平台电压。该产品无需额外升压电路,可降低系统成本并减少电磁干扰。
SGMICRO - 单路,无电感具有手电筒模式的 LED 闪光驱动器,SGM37892AYTN6G/TR,SGM37892A,SGM37892AYUDT6G/TR,SGM37892YTN6G/TR,SGM37892,SGM37892YUDT6G/TR,智能电话,网络相机,平板电脑
SGMicro(圣邦微)-TI/ADI/ON产品对照表
SGMICRO - ADC,LED驱动,运放器,TEC,LDO,模数转换器,比较器,OPA335,OPA698,SGM8273-1AXN5,OPA2364,OPA330,SGM8955XN5G/TR,AD8605ARTZ,SGM724,LMV821M7 NOPB,SGM8199A3XC6G/TR,OPA2357,SGM80582XS8G,OPA2355,OPA2354,SN74LVC1G08DCKR,TPS61240,SGM8261-2,74LVC1G32GW,LMP2021MF/NOPB,AD8531ART,LM7301IM5 NOPB,OPA2350,SGM8094,MC33272ADR2G,SGM8091,SGM8092,SGM8093,SGM722,ADTL084,TLV3542,OPA376AIDCKR,TLV3541,LMC7660,SGM810-SXN3/TR,NCV33274ADR2G,OPA2170AIDGKR,AD8629ARMZ-REEL,SGM809-SXN3/TR,OPA364IDBVR,SN74LV4051,SGM8557-1XN5,TS321IDBVR,SGM8270-2XS8G/TR,TLV3544,SN74LVC1G00DCKR,IMP809T,IMP809S,IMP809M,SGM8770XS8G/TR,SGM8416-1,SGM8957-1XN5G/TR,SGM8416-2,TLV271IDBVR,ADM708SARZ,SGM8271BYN5G/TR,TPS73433DDCR,SGM809-RXN3L/TR,AF809N293MR-3,AD8091,SGM7SZ125YC5G/TR,SGM58031,AD8094,AD8093,AD8092,SGM8273-2,LT1797CS5#TRMPBF,SN74AHCT1G125D,SGM8273-4,OPA2365,SGM8273-1,SGM809-XXN3/TR,AME8500AEETAF31Z,74AVCH8T245PW,OPA376,SGM8557-3,LMV321IDBVR,SGM8557-1,SGM8557-2,LMH6611MKX/NOPB,SGM7SZ00YN5G/TR,SGM809-SXN3L/TR,AD8062,AD8061,SGM721XS/TR,OPA330AIDBVR,AD8063,SGM42609,AME8500AEETAF44Z,PT7M7810STEX,SGM7SZ08YN5G/TR,SGM8541XN5/TR,INA214B,SGM7SZ04YC5G/TR,LM358,SGM8957-2XMS8G/TR,TXB0104RUTR,NCS20074DTBR2G,SN74LVC1G3157DCKR,LMV324,TL343,OPA3355,SGM8270-2,SGM8270-4,OPA357,OPA2188,OPA354,OPA355,SGM61230,SGM8558-1,SGM8301YN5,NCS199A2SQT2G,OPA350,OPA4357,SGM8T245XTS24G/TR,OPA2171,OPA4354,SGM2205-3.3XKC3G/TR,SGM8210-1AXN5G/TR,OPA365,OPA4350,TSV321RILT,TLV4333,TL082IDR,AD8051,AD8055,AD8054,AD8053,LMV934MTX/NOPB,AD8052,LMV824DR2G,SGM721XN5/TR,SGM8255A-1XN5G/TR,SGM8274YTS14G/TR,SGM2040-3.3YUDH4G/TR,MC33202,UA78M33CKCS,LMV358,SN74LVC1G32DCKRE4,SGM2036-3.3YN5G/TR,OPA4170AIDR,SGM8557-1AXN5G,SGM8622XMS/TR,LP2980,MC33179DR2G,SGM809-1.63V,SGM8255A-2XS8G/TR,SGM8551XN5,TLV2171,SGM8740YN5,SGM8273-2XS,LM393,SGM8632C,SGM8273-1AXN5G/TR,ADM706SARZ,LMV822MMX/NOPB,ISL28290FBZ-T7,AD8615_6,TLV274IPWR,AD8666ARMZ-REEL,OPA172IDBVR,SGM8965,MC33178DR2G,SGM8604,MCP6004T-E/ST,TLC2272,LM258,SGM7SZ245XTS20G/TR,LMV393,TL082,SGM8965-2,SGM8965-1,INA199A1DCKR,MCP6561T-E/OT,SGM8957,SGM8959,SGM8955,OPA2320,TPS54218ARTE,LM2904,AD8614ARTZ-R2,SGM3749YTDI6G/TR,SGM811-SXKA4/TR,TPS61165,OPA2171AIDGKR,SGM4564YUQN12G/TR,LMC6482AIMX NOPB,TPS61160,SGMOP07EXS8G/TR,SGM8557-2XS8G/TR,MAX4239,SGM7SZ08YC5G/TR,SGM3157YC6/TR,TS321ILT,OPA2301,SGM8210-2XMS8G/TR,SN74LVC1G14DBVRG4,VIC5111-293BDI,TPS54202,SGM8552XMS8G/TR,TSZ122IST,ISL28177,STR8293-263BSI,OPA2335,TLV272IDGKR,MC74HC1G04DFT2G,OPA365AIDBVR,SGM8425AYN5G/TR,SGM8557-1AXN5G/TR,SGM8631,SGM8632,SGM8554XTS14G/TR,LSP2200CALS,AP7335-33WG-7,SGM7SZ14YC5G/TR,LM358AN NOPB,LSP2200CALR,SGM8634,NC7SZ08P5X,INA199B1DCKR,AD8538,TLV3201AIDBVR,SN74AVC2T244DQ,SGM8542,SGM8301,SGM8544,SGM8302,SGM8199A1XC6G/TR,INA199A3DCKR,SGM809-TXN3/TR,SGM8304,SGM8428,AD8668,NCS333SN2T1G,SGM8555-1XN5,SGM8631XN5/TR,SGM8959-1,SGM4556YXDO8G/TR,MC33272,SGM8652,SGM8199A2XC6G,SGM8653,TLV62565DBV,SGM8654,SGM8959-1XN5G/TR,SGM8655,125,SGM8770,NCS20072DR2G,SGM8651,AD8552,SGM8538,LMV824IPT,SN74AHCT245DWR,TLC272,TL064IDT,TLE2021,TLE2142,SGM8199A2,NCS2333DR2G,PT7M7809S,TP5552,SGM41298,SGM6011,LM7321MF/NOPB,SGM8210-2XS8G,SGM8556,SGM8957-2XS8G/TR,SGM2558BYS8G/TR,SGM8552,ISL28133FHZ-T7,OPA340UA,MAX9617AXT+T,SGM8557,SGM8558,IMP811SEUS-T,MCP664,MCP662,SGM6605-5.0YN6G/TR,ADN8834,INA199A2DCKR,NCV33274ADTBR2G,MCP661,SGM3209YS8G/TR,INA199B2DCKR,MC33074ADTBR2G,SGM8199A3XC6G,SN74LVC2244APWR,LM7322MME/NOPB,NL17SZ08DFT2G,MC33078,MCP651,MCP652,AD8628,OPA376AIDBVR,SGM8255-4XS14G/TR,SN74LVC1G125DC,ADA4891-1,LMV342MM NOPB,ADA4891-2,LMV710M5 NOPB,SN74AHC1G14DBVR,AD8510,NCS199A1SQT2G,SN74AVC8T245PWR,AD823,OPA4330AIPWR,74LVC1G08GW,TPH2502,TPH2501,TPH2504,ADA4891-4,LM2903MX,AD8605ARTZ-REEL7,AD8602,SGM8295-4XS14G/TR,AD8605,OPA4277UA,MC33172,SGM7SZ32YC5G/TR,LMC7101QM5/NOPB,SN74LVC1G14DCKR,SGM8210-1,SGM8210-2,TSZ121ILT,AIC809-29,TLV2333IDR,LMV611MF/NOPB,SGM8199A2XC6G/TR,SGM8740YN5G/TR,SGM8632CXMS8G/TR,NC7S04P5X,SGM8271AYN5G/TR,LM3526,OPA2197,SGM8958-1XC5G/TR,AD8665ARJZ-REEL,SGM7SZ244,SGM321,TLV2314IDGKR,SGM8251XS8G/TR,LM258DR2G,TPS61410,SGM8294YTS14G/TR,STR8210-293BSI,SGM80584,SGM8273-2XS8G/TR,AME8500AEETAF26Z,OPA177GS/2K5,LM4871,SGM8252A,SGM809-RXN3/TR,LMV824MX NOPB,SGM7SZ14YN5G/TR,TS507IYLT,SGM8270,LMH6643,SGM8271,LMH6644,SGM8273,LMH6642,MP2459,SGM3749YTN6G/TR,SGM80581,SGM80582,SGM8581XN5G/TR,TS321AILT,LMV822,SGM706B,TLV2372IDGKR,LMV722MMX-NOPB,NJM3403AV,ISL28130CHZ-T7,SN74LVC1G08DBVR,SGM8061,SGM8062,SGM8063,TP2412,SGM4871YS8/TR,OPA2171AIDR,LF353DR,LMV710,TLV333,SGM809-MXN3/TR,LM293ADR,PT7M7809STEX,SGM8965-1XN5G/TR,SGM8051,SGM8052,SGM8295,SGM8053,TPS72733,SGM8054,LMV842,AME8500AEETAF29Z,SGM8055,DRV8837DSGR,SGM708B,SGM8199A1XC6G,SN74AHC1G00DBVR,CY74FCT2245CTQ,SGM8965-1XN5,TS5A3157,MCP6004T-I/SL,SGM2300-ADJYN5G/TR,SGM48751YTS16G/TR,LMC7101AIM5 NOPB,ADA4807-1,LMP2022MAX/NOPB,TLV9062,CY74FCT2244ATQ,LMP7715MFX/NOPB,ADS1115,NCS20081SN2T1G
SGMICRO DC/DC转换器选型表
SGMICRO DC/DC转换器选型表包含包含同步整流降压转换器、AMOLED显示屏电源降压、非同步降压转换器升压、同步整流升压转换器、非同步升压转换器、电荷泵DC/DC转换器 、专用DC/DC转换器和LCM偏置电源;升降压、电荷泵供电,最大输入电压60V,最大开关电流10A,内置MOS。
产品型号
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品类
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CH
|
Enable
|
Vcc (Min)(V)
|
Vcc (Max)(V)
|
I_OUT(mA)
|
Frequency (kHz)
|
Iq (μA)
|
SHDN Iq(μA)
|
Package
|
SGM6010
|
DC/DC Synchronous Rectifier Buck Converters
|
1
|
L
|
3
|
5.5
|
3000
|
300 to 2000
|
0.41
|
2
|
TDFN-3×3-10L
|
选型表 - SGMICRO 立即选型
SGMICRO Launches Single-/Dual-channel High Speed ADC Products SGM5100/1 and SGM5102
SGMICRO recently launched Single-/dual-channel High Speed ADC Products SGM5100/1 and SGM5102.The SGM5100/SGM5101 are 14-bit 10MSPS/40MSPS, low power 3V single-channel ADC, suitable for sampling high frequency and wide dynamic range signals.
SGMICRO放大器选型表
专用运算放大器,高输出电流400mA,低功耗1.1μA;高速运算放大器,500MHz增益带宽,高压摆率265V/μs;高精度运算放大器,失调电压低至5μV,低温漂0.011μV/℃;电流检测放大器,高共模电压105V,高共模抑制比140dB;低噪声运算放大器,低噪音1.6nV/√Hz,低失调电压8.5mV;微功耗运算放大器,最低功耗低至350nA,1\2\4路,轨至轨输入输出;低功耗运算放大器,功耗低至2.5μA,最大工作电压36V
产品型号
|
品类
|
CH
|
SHDN
|
Vᴄᴄ(Min)(V)
|
Vᴄᴄ (Max)(V)
|
Vᴏs(mV)
|
Iq/CH(μA、nA、mA)
|
Iʙ(pA)
|
GBP(MHz、kHz)
|
SR(V/ms、V/μs)
|
Eɴᴏɪsᴇ(nV/√Hz、μVᴘᴘ)
|
Package
|
SGM8545
|
低功耗运算放大器
|
1
|
N
|
2.1
|
5.5
|
3.5
|
48μA
|
0.5
|
1.1MHz
|
520V/ms
|
27nV/√Hz
|
SOT-23-5
|
选型表 - SGMICRO 立即选型
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可定制变压器电压最高4.5KV,高频30MHz;支持平面变压器、平板变压器、OBC变压器、DCDC变压器、PLC信号变压器、3D电源、电流变压器、反激变压器、直流直流变压器、车载充电器变压器、门极驱动变压器等产品定制。
最小起订量: 100000 提交需求>
测试范围:扬兴晶振全系列晶体,通过对晶体回路匹配分析,调整频率、驱动功率和起振能力,解决频偏、不起振、干扰、频率错误等问题。技术专家免费分析,测完如有问题,会进一步晶振烧录/修改电路。
实验室地址: 深圳 提交需求>
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