中文
EnglishCXLE8605 CXLE8604 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
目录
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）
5.功能概述 8.相关产品
一,产品概述(General Description) 
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.
The CXLE8605 could directly drive 16 Series 1W/3W LED units at VIN=24V .
The CXLE8604 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.
The CXLE8604 could directly drive 11 Series 1W LED units at VIN>12V .
The PWM control circuit is able to adjust the duty ratio linearly from 0 to
90%. An enable function, an over current protection function is built inside. An internal compensation block is built in to minimize external component count.
二</span>.产品特点(Features)
Wide 5V to 32V Input Voltage Range
Maximum Boost Output Up to 60V
0.22V FB adjustable LED drive current
Directly drive 16 Series 1W/3W LED at
VIN=24V
Fixed 180KHz Switching Frequency
Max. 5A Switching Current Capability
Up to 94% efficiency
Excellent line and load regulation
EN PIN TTL shutdown capability
Internal Optimize Power MOSFET
Built in Soft-Start Function
Built in Frequency Compensation
Built in Thermal Shutdown Function
Built in Current Limit Function
Available in TO263-5L package
三,应用范围 (Applications)
LED Lighting
Boost constant current driver
TFT LED Backlighting
四.技术</span>规格书下载（产品PDF）</span>CXLE8605
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</span>！</span>
Pin Number | Pin Name | Description |
1 | GND | Ground Pin. |
2 | EN | Enable Pin. Drive EN pin low to turn off the device, drive it |
3 | SW | Power Switch Output Pin (SW). |
4 | VIN | Supply Voltage Input Pin. CXLE8605 operates from a 5V to 32V |
5 | FB | Feedback Pin (FB). The feedback threshold voltage is 0.22V. |
七</span>,功能概述
Parameter | Symbol | Value | Unit |
Input Voltage | Vin | -0.3 to 36 | V |
Feedback Pin Voltage | VFB | -0.3 to Vin | V |
EN Pin Voltage | VEN | -0.3 to Vin | V |
Output Switch Pin Voltage | VOutput | -0.3 to 60 | V |
Power Dissipation | PD | Internally limited | mW |
Thermal Resistance (TO263-5L) | RJA | 30 | oC/W |
Operating Junction Temperature | TJ | -40 to 125 | oC |
八,相关芯片选择指南
| 产品型号 | 输入电压 | 最大输出电压</td> | 开关电流</td> | 开关频率</td> | 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 |
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