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深圳市迅瑞創(chuàng)芯科技有限公司
主營產(chǎn)品: 通信產(chǎn)品
太矽原裝-TX5121-DC-DC升壓IC-白光LED升壓芯片
價(jià)格
訂貨量(PCS)
¥0.28
≥3000
¥0.27
≥30000
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深圳市迅瑞創(chuàng)芯科技有限公司
店齡5年 企業(yè)認(rèn)證
聯(lián)系人
文俐 銷售
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잵잰잮잲재잳잴잱잰잰잭
經(jīng)營模式
商業(yè)服務(wù)
所在地區(qū)
廣東省深圳市
主營產(chǎn)品
一:Features
Inherently Matched LED Current
High Efficiency:82%
Drives Up to Six LEDs from 2.2VSupply
20V Over Voltage Protection
Fast 1.4MHz Switching Frequency
Requires Only 1μF Output Capacitors
SOT-23-6 Package
二:Applications
Communication equipment
White LED Backlight Display for PDA
Pocket PC
Handheld Devices
Cellular Phones
White LED display backlighting
三:General Description
The TX5121 is a step-up DC/DC converter specifically designed to drive up to 6 series white LEDs with constant current. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminates the need for ballast resistors. The TX5121 switches at 1.4MHz, allowing the use of tiny external components. A low 0.25V feedback voltage minimizes power loss in the current setting resistor for high efficiency. The OVP pin monitors the output voltage and turns off the converter whenever the LEDs are open.
The TX5121 is available in low profile SOT-23-6 package.