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MAX8901

Highest Efficiency Supply for 2 to 6 Series WLEDs in a 2mm x 2mm TDFN Package

文件:303.04 Kbytes 页数:14 Pages

Maxim

美信

MAX8901

Highest Efficiency Supply for 2 to 6 Series WLEDs in a 2mm x 2mm TDFN Package

MAX8901A/MAX8901B升压转换器能够以固定电流驱动2至6只串联白光LED (WLED),为手机、PDA和其它手持设备提供亮度均匀的WLED驱动,用于LCD背光。MAX8901_工作在750kHz (典型值)固定开关频率,允许采用小尺寸外部元件,经过优化处理能够在1节锂离子/锂聚合物电池的整个电压范围保持最高效率。\n这两款转换器采用单个输入(ON)使能IC并控制WLED亮度。MAX8901A采用直接PWM输入调节LED亮度,LED电流正比于PWM占空比。MAX8901B采用单线、串行脉冲调光,提供32级线性调节的LED亮度。利用脉冲串调光时,满量程LED电流为24.75mA (对于 ·效率高达91% \n·2.6V至5.5V输入电压范围\n·固定频率工作模式\n·能够驱动2至6只串联WLED,1.3% LED电流精度\n·灵活的调光控制\n·直接PWM调光(MAX8901A)\n·32级、单线串行调光(MAX8901B)\n·输入欠压锁存\n·输入过压锁存\n·WLED过压保护(25V典型值)\n·0.01µA (典型值)关断电流\n·关断模式下没有WLED电流\n·内部软启动和热关断;

ADI

亚德诺

MAX8901A

Highest Efficiency Supply for 2 to 6 Series WLEDs in a 2mm x 2mm TDFN Package

General Description The MAX8901A/MAX8901B step-up converters drive from two to six series-connected white LEDs (WLEDs) with constant current to provide uniform WLED intensity for LCD backlighting in cell phones, PDAs, and other handheld devices. The MAX8901_ operate at a fixed 750kHz (typ) switch

文件:298.58 Kbytes 页数:15 Pages

Maxim

美信

MAX8901AETA

Highest Efficiency Supply for 2 to 6 Series WLEDs in a 2mm x 2mm TDFN Package

General Description The MAX8901A/MAX8901B step-up converters drive from two to six series-connected white LEDs (WLEDs) with constant current to provide uniform WLED intensity for LCD backlighting in cell phones, PDAs, and other handheld devices. The MAX8901_ operate at a fixed 750kHz (typ) switch

文件:298.58 Kbytes 页数:15 Pages

Maxim

美信

MAX8901B

Highest Efficiency Supply for 2 to 6 Series WLEDs in a 2mm x 2mm TDFN Package

General Description The MAX8901A/MAX8901B step-up converters drive from two to six series-connected white LEDs (WLEDs) with constant current to provide uniform WLED intensity for LCD backlighting in cell phones, PDAs, and other handheld devices. The MAX8901_ operate at a fixed 750kHz (typ) switch

文件:298.58 Kbytes 页数:15 Pages

Maxim

美信

MAX8901BETA

Highest Efficiency Supply for 2 to 6 Series WLEDs in a 2mm x 2mm TDFN Package

General Description The MAX8901A/MAX8901B step-up converters drive from two to six series-connected white LEDs (WLEDs) with constant current to provide uniform WLED intensity for LCD backlighting in cell phones, PDAs, and other handheld devices. The MAX8901_ operate at a fixed 750kHz (typ) switch

文件:298.58 Kbytes 页数:15 Pages

Maxim

美信

MAX8901AETA+T

Highest Efficiency Supply for 2 to 6 Series WLEDs in a 2mm x 2mm TDFN Package

文件:303.04 Kbytes 页数:14 Pages

Maxim

美信

MAX8901BETA+T

Highest Efficiency Supply for 2 to 6 Series WLEDs in a 2mm x 2mm TDFN Package

文件:303.04 Kbytes 页数:14 Pages

Maxim

美信

MAX8901A

效率最高的2至6只串联WLED供电电源,2mm x 2mm TDFN封装

MAX8901A/MAX8901B升压转换器能够以固定电流驱动2至6只串联白光LED (WLED),为手机、PDA和其它手持设备提供亮度均匀的WLED驱动,用于LCD背光。MAX8901_工作在750kHz (典型值)固定开关频率,允许采用小尺寸外部元件,经过优化处理能够在1节锂离子/锂聚合物电池的整个电压范围保持最高效率。\n\n 这两款转换器采用单个输入(ON)使能IC并控制WLED亮度。MAX8901A采用直接PWM输入调节LED亮度,LED电流正比于PWM占空比。MAX8901B采用单线、串行脉冲调光,提供32级线性调节的LED亮度。利用脉冲串调光时,满量程LED电流为24. • 效率高达91% \n• 2.6V至5.5V输入电压范围\n• 固定频率工作模式\n• 能够驱动2至6只串联WLED,1.3% LED电流精度\n• 灵活的调光控制\n• 直接PWM调光(MAX8901A)\n• 32级、单线串行调光(MAX8901B)\n\n\n• 输入欠压锁存\n• 输入过压锁存\n• WLED过压保护(25V典型值)\n• 0.01µA (典型值)关断电流\n• 关断模式下没有WLED电流\n• 内部软启动和热关断;

ADI

亚德诺

MAX8901B

效率最高的2至6只串联WLED供电电源,2mm x 2mm TDFN封装

MAX8901A/MAX8901B升压转换器能够以固定电流驱动2至6只串联白光LED (WLED),为手机、PDA和其它手持设备提供亮度均匀的WLED驱动,用于LCD背光。MAX8901_工作在750kHz (典型值)固定开关频率,允许采用小尺寸外部元件,经过优化处理能够在1节锂离子/锂聚合物电池的整个电压范围保持最高效率。\n这两款转换器采用单个输入(ON)使能IC并控制WLED亮度。MAX8901A采用直接PWM输入调节LED亮度,LED电流正比于PWM占空比。MAX8901B采用单线、串行脉冲调光,提供32级线性调节的LED亮度。利用脉冲串调光时,满量程LED电流为24.75mA (对于 ·效率高达91% \n·2.6V至5.5V输入电压范围\n·固定频率工作模式\n·能够驱动2至6只串联WLED,1.3% LED电流精度\n·灵活的调光控制\n·直接PWM调光(MAX8901A)\n·32级、单线串行调光(MAX8901B)\n·输入欠压锁存\n·输入过压锁存\n·WLED过压保护(25V典型值)\n·0.01µA (典型值)关断电流\n·关断模式下没有WLED电流\n·内部软启动和热关断;

ADI

亚德诺

技术参数

  • VIN (max)(V):

    5.5

  • Max. No. of LEDs:

    6

  • # LED Channels:

    1

  • Regulation Topology:

    Inductor Based

  • Battery Input:

    1-Cell Li+

  • LED Configuration:

    Series

  • ILED per Channel (max)(A):

    0.025

  • PWM Dimming Freq. (max)(kHz):

    500

  • Dimming Control:

    PWM

  • VCURR_SENSE(mV):

    500

  • POUT(W):

    0.6

  • ICC (max)(mA):

    0.135

  • LED String Volt. (max)(V):

    24

  • Fxd. Freq.:

    Yes

  • Switching Frequency(kHz):

    750

  • Features:

    Internal Switch

  • Tags:

    Backlight

  • EV Kit Available:

    Yes

  • RoHS Available:

    See Data Sheet

  • Oper. Temp.(°C):

    -40 to +85

  • Package/ Pins:

    TDFN/8

  • Smallest Available Pckg. (max w/pins)(mm2):

    4.4

  • Budgetary Price (See Notes):

    $1.41 @1k

供应商型号品牌批号封装库存备注价格
MAXIM
25+
标准封装
18000
原厂直接发货进口原装
询价
MAXIM
0952+
TDFN
2950
询价
MAXIM
25+
SOP-8
2250
100%全新原装公司现货供应!随时可发货
询价
MAXIM
23+
TDFN-8
5000
原装正品,假一罚十
询价
MAX
25+
QFN
3630
百分百原装正品 真实公司现货库存 本公司只做原装 可
询价
MAXIM
24+
TDFN-8
5000
只做原装公司现货
询价
Maxim
1725+
?
7500
只做原装进口,假一罚十
询价
MAXIM
25+
TDFN-8
2789
原装优势!绝对公司现货!
询价
MAXIM
23+
DFN
8560
受权代理!全新原装现货特价热卖!
询价
MAXIM
18+
TDFN-8
85600
保证进口原装可开17%增值税发票
询价
更多MAX8901供应商 更新时间2025-10-10 17:06:00