The CXLE8222 continuous mode inductive step-down converter,designed for driving single or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage.

目录VpD嘉泰姆

   1.产品概述   2.产品特点   3.应用范围    4.技术规格书下载（PDF文档）</span>VpD嘉泰姆

   5.产品封装  6.电路原理图</span>  7.相关产品VpD嘉泰姆

一.产品概述VpD嘉泰姆

 The CXLE8222 is a continuous mode inductive step-down converter, designed for driving VpD嘉泰姆

single or multiple series connected LEDs efficiently from a voltage source higher than VpD嘉泰姆

the LED voltage. The device operates from an input supply between 6V and 32V and provides VpD嘉泰姆

an externally output current up to 1.4A. Depending upon supply voltage and external VpD嘉泰姆

components, this can provides up to 24 watts of output power. VpD嘉泰姆

 The CXLE8222 includes the output switch and a high-side output current sensing circuit,VpD嘉泰姆

which uses an external resistor to set the nominal average output current. Output current VpD嘉泰姆

can be adjusted by applying an external control signal to the 'ADJ' pin. The ADJ pin will accept either a DC voltage or a PWM waveform. During DC dimming, this will provide a VpD嘉泰姆

continuous output current that is proportional to the external applied DC voltage. During VpD嘉泰姆

the PWM dimming, this will provide a gated output current and the average current is proportional to the duty cycle. Applying a voltage of 0.2V or lower to the ADJ pin turns VpD嘉泰姆

the output off and switches the device into a low current standby state. VpD嘉泰姆

二.产品特点VpD嘉泰姆

Simple low parts count  VpD嘉泰姆

Internal 32V NDMOS switch  VpD嘉泰姆

Up to 1.4A output current  VpD嘉泰姆

Single pin on/off and brightness control using DC voltage or PWM  VpD嘉泰姆

Soft Start  VpD嘉泰姆

High efficiency (up to 97%) VpD嘉泰姆

Wide input voltage range: 6V to 32V  VpD嘉泰姆

Output shutdown  VpD嘉泰姆

Up to 1MHz switching frequency  VpD嘉泰姆

Inherent open-circuit LED protection  VpD嘉泰姆

Typical 4% output current accuracy  VpD嘉泰姆

High-side current sense  VpD嘉泰姆

Hysteretic control: no compensation  VpD嘉泰姆

AdjustaJTMBe constant LED current  VpD嘉泰姆

Over temperature protection  VpD嘉泰姆

Pb-free SOT89-5 packagesVpD嘉泰姆

三.应用范围VpD嘉泰姆

Low voltage halogen replacement LEDs VpD嘉泰姆

Automotive lighting  VpD嘉泰姆

Low voltage industrial lighting VpD嘉泰姆

LED back-up lighting  VpD嘉泰姆

Illuminated signs  VpD嘉泰姆

LCD TV backlighting    VpD嘉泰姆

四.技术规格书（产品PDF)VpD嘉泰姆

需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！VpD嘉泰姆

 VpD嘉泰姆

五.产品封装图</p>

  VpD嘉泰姆

六.电路原理图</p>

   VpD嘉泰姆

七.相关芯片选择指南VpD嘉泰姆