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ZXSC300
SINGLE OR MULTI CELL LED DRIVER SOLUTION
DESCRIPTION
The ZXSC300 is a single or multi cell LED driver
designed for applications where step-up voltage
conversion from very low input voltages is required.
These applications mainly operate from single 1.5V or
1.2V battery cells. The circuit generates constant
current pulses that are ideal for driving single or
The circuit can start up under full load and operates
down to an input voltage of 0.8 volts. The solution
configuration ensures optimum efficiency over a wide
range of load currents, several circuit configurations
are possible depending on battery life versus
brightness considerations.
multiple LED’s over a wide range of operating voltages.
The ZXSC300 is offered in the SOT23-5 package which,
The ZXSC300 is a PFM controller IC that drives an
external Zetex switching transistor with a very low
saturation resistance. These transistors are the best
switching devices available for this type of switching
conversion enabling high efficiency conversion with
input voltages below 1 volt. The drive output of the
ZXSC controller generates a dynamic drive signal for
the switching transistor.
FEATURES
? 94% efficiency
? Minimum operating input voltage 0.8V
? Fixed output current
? Low saturation voltage switching transistor
? SOT23-5 package
TYPICAL APPLICATION CIRCUIT
when combined with a SOT23 switching transistor,
generates a high efficiency small size circuit solution.
The IC and discrete combination offers the ultimate
cost vs performance solution for single cell LED driving
applications.
APPLICATIONS
? LED flashlights and torches
? LED backlights
? White LED driving
? Multiple LED driving
? Solar Equipment
ORDERING INFORMATION
V BATT
L1
100μH
DEVICE
ZXSC300E5TA
Reel
7”
Tapewidth
8mm
Quantity
per reel
3,000
U1
Q1
V cc
V drive
FMMT617
LED1
WHITE LED
DEVICE MARKING C300
Package SOT23-5
I sense
Gnd
ZXSC300
R1
0.33R
ISSUE 4 - SEPTEMBER 2007
1
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相关代理商/技术参数
ZXSC300E5TA 制造商:Diodes Incorporated 功能描述:IC LED DRIVER SMD SOT-23-5 300
ZXSC300E5TC 功能描述:LED照明驱动器 White LED Drvr Cvrtr RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
ZXSC310 制造商:ZETEX 制造商全称:ZETEX 功能描述:LED DRIVER SOLUTION FOR LCD BACKLIGHTING
ZXSC310_04 制造商:ZETEX 制造商全称:ZETEX 功能描述:LED DRIVER SOLUTION FOR LCD BACKLIGHTING
ZXSC310E5 制造商:Diodes Incorporated 功能描述:IC LED DRIVER BOOST CONVERTER 310 制造商:Diodes Incorporated 功能描述:IC, LED DRIVER BOOST CONVERTER, 310 制造商:Diodes Incorporated 功能描述:IC, LED DRIVER BOOST CONVERTER, 310; Topology:Boost; No. of Outputs:1; Output Current:3.5mA; Output Voltage:8V; Driver Case Style:SOT-23; Input Voltage Min:800mV; Input Voltage Max:8V; Switching Frequency:200kHz; Operating ;RoHS Compliant: Yes
ZXSC310E5 制造商:Diodes Incorporated 功能描述:IC LED DRIVER BOOST CONVERTER SMD
ZXSC310E5TA 功能描述:LED照明驱动器 LED Drvr w/shutdown RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
ZXSC310E5TA-CUT TAPE 制造商:DIODES 功能描述:ZXSC310 Series 3.5 mA 200 kHz Surface Mount LED Driver Solution - SOT-23-5