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首页 > 产品中心 > LED驱动电路 > LED背光 > 升压型LED背光 >CXLE8604 CXLE8605固定频率的PWM升压LED恒流驱动器1W/3W/5W系列LED单元良好的线路和负载调节能力PWM控制电路将占空比从0线性调整到90% 5A开关电流能力
CXLE8604 CXLE8605固定频率的PWM升压LED恒流驱动器1W/3W/5W系列LED单元良好的线路和负载调节能力PWM控制电路将占空比从0线性调整到90% 5A开关电流能力
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CXLE8604调节器是固定频率的PWM升压(升压)LED恒流驱动器,可驱动1W/3W/5W系列LED单元,具有良好的线路和负载调节能力。调节器使用简单,因为它包括内部频率补偿和固定频率振荡器所以它需要最少数量的外部组件才能工作。CXLE8605可以直接驱动16系列1W/3W LED单元(在车辆识别号=24伏时)。CXLE8604调节器是一种定频PWM升压(升压)LED恒流驱动器,能够驱动1W/3W/5W系列LED单元,具有优异的性能线路和负载调节。调节器使用简单,因为它包括内部频率补偿和固定频率振荡器需要最少数量的外部组件才能工作。CXLE8604可以直接驱动11系列1W LED单元(在车辆识别号>12V时)。
PWM控制电路能够将占空比从0线性调整到90%。一个使能功能,一个过电流保护功能内置。内置一个内部补偿块以最小化外部组件计数。
宽5V至32V输入电压范围
最大升压输出高达60V
0.22V FB可调LED驱动电流
直接驱动16系列1W/3W LED at
车辆识别号=24伏
固定180KHz开关频率
最大5A开关电流能力
效率高达94%
优良的线路和负载调节
EN引脚TTL关闭能力
内优化功率MOSFET
内置软启动功能
内置频率补偿
内置热关机功能
内置限流功能

CXLE8604 CXLE8605固定频率的PWM升压LED恒流驱动器1W/3W/5W系列LED单元良好的线路和负载调节能力PWM控制电路将占空比从0线性调整到90% 5A开关电流能力
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目录uLt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(产品PDF文档) uLt嘉泰姆
5.产品封装图   6.电路原理图  7.功能概述      8.相关产品
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一,产品概述(General Description)      uLt嘉泰姆


   The CXLE8605 regulator is fixed frequency PWM Boost (step-up) LED constant current driver, capable of driving Series 1W/3W/5W LED units with excellent line and load regulation. The regulator is simple to use because it includes internal frequency compensation and a fixed-frequency oscillator so that it requires a minimum number of external components to work.uLt嘉泰姆
   The CXLE8605 could directly drive 16 Series 1W/3W LED units at VIN=24V . uLt嘉泰姆
   The CXLE8604 regulator is fixed frequency PWM Boost (step-up) LED constant current driver,capable of driving Series 1W/3W/5W LED units with excellentuLt嘉泰姆
line and load regulation. The regulator is simple to use because it includesuLt嘉泰姆
internal frequency compensation and a fixed-frequency oscillator so that ituLt嘉泰姆
requires a minimum number of external components to work.uLt嘉泰姆
     The CXLE8604 could directly drive 11 Series 1W LED units at VIN>12V .uLt嘉泰姆
     The PWM control circuit is able to adjust the duty ratio linearly from 0 touLt嘉泰姆
90%. An enable function, an over current protection function is built inside. An internal compensation block is built in to minimize external component count.
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二.产品特点(Features)uLt嘉泰姆
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Wide 5V to 32V Input Voltage RangeuLt嘉泰姆
Maximum Boost Output Up to 60VuLt嘉泰姆
0.22V FB adjustable LED drive currentuLt嘉泰姆
Directly drive 16 Series 1W/3W LED at VIN=24VuLt嘉泰姆
Fixed 180KHz Switching FrequencyuLt嘉泰姆
Max. 5A Switching Current CapabilityuLt嘉泰姆
Up to 94% efficiencyuLt嘉泰姆
Excellent line and load regulationuLt嘉泰姆
EN PIN TTL shutdown capabilityuLt嘉泰姆
Internal Optimize Power MOSFETuLt嘉泰姆
Built in Soft-Start FunctionuLt嘉泰姆
Built in Frequency CompensationuLt嘉泰姆
Built in Thermal Shutdown FunctionuLt嘉泰姆
Built in Current Limit FunctionuLt嘉泰姆
Available in TO263-5L packageuLt嘉泰姆
三,应用范围 (Applications)uLt嘉泰姆
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LED LightinguLt嘉泰姆
Boost constant current driveruLt嘉泰姆
TFT LED BacklightinguLt嘉泰姆
四.技术规格书下载(产品PDF)CXLE8605
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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!uLt嘉泰姆

 QQ截图20160419174301.jpguLt嘉泰姆

五,产品封装图 (Package)uLt嘉泰姆
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image.pnguLt嘉泰姆

Pin NumberuLt嘉泰姆

Pin NameuLt嘉泰姆

DescriptionuLt嘉泰姆

1uLt嘉泰姆

GNDuLt嘉泰姆

Ground Pin.uLt嘉泰姆

2uLt嘉泰姆

ENuLt嘉泰姆

Enable Pin. Drive EN pin low to turn off the device, drive ituLt嘉泰姆
high to turn it on. Floating is default high.
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3uLt嘉泰姆

SWuLt嘉泰姆

Power Switch Output Pin (SW).uLt嘉泰姆

4uLt嘉泰姆

VINuLt嘉泰姆

Supply Voltage Input Pin. CXLE8605 operates from a 5V to 32VuLt嘉泰姆
DC voltage. Bypass Vin to GND with a suitably largeuLt嘉泰姆
capacitor to eliminate noise on the input.
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5uLt嘉泰姆

FBuLt嘉泰姆

Feedback Pin (FB). The feedback threshold voltage is 0.22V.uLt嘉泰姆

六.电路原理图uLt嘉泰姆
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blob.png
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七,功能概述uLt嘉泰姆
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ParameteruLt嘉泰姆

SymboluLt嘉泰姆

ValueuLt嘉泰姆

UnituLt嘉泰姆

Input VoltageuLt嘉泰姆

VinuLt嘉泰姆

-0.3 to 36uLt嘉泰姆

VuLt嘉泰姆

Feedback Pin VoltageuLt嘉泰姆

VFBuLt嘉泰姆

-0.3 to VinuLt嘉泰姆

VuLt嘉泰姆

EN Pin VoltageuLt嘉泰姆

VENuLt嘉泰姆

-0.3 to VinuLt嘉泰姆

VuLt嘉泰姆

Output Switch Pin VoltageuLt嘉泰姆

VOutputuLt嘉泰姆

-0.3 to 60uLt嘉泰姆

VuLt嘉泰姆

Power DissipationuLt嘉泰姆

PDuLt嘉泰姆

Internally limiteduLt嘉泰姆

mWuLt嘉泰姆

Thermal Resistance (TO263-5L)uLt嘉泰姆
(Junction to Ambient, No Heatsink, Free Air)
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RJAuLt嘉泰姆

30uLt嘉泰姆

oC/WuLt嘉泰姆

Operating Junction TemperatureuLt嘉泰姆

TJuLt嘉泰姆

-40 to 125uLt嘉泰姆

oCuLt嘉泰姆

八,相关芯片选择指南uLt嘉泰姆
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产品型号 输入电压 最大输出电压 开关电流 开关频率 恒流设置 封装形式
CXLE8601 3.6V ~ 24V 32V 2A 400KHz Adj   (0.22V) SOP8L
CXLE8602 5V ~ 40V 60V 2A 400KHz Adj   (0.22V) SOP8L
CXLE8603 5V ~ 40V 60V 2A 400KHz Adj   (0.22V) SOP8L
CXLE8604 3.6V ~ 32V 60V 4A 180KHz Adj   (0.22V) TO252-5L
CXLE8605 5V ~ 32V 60V 5A 180KHz Adj   (0.22V) TO263-5L