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CXLE8849固定150kHz开关频率2A恒定输出电流150KHz的固定频率脉冲宽度调制降压DC转换器宽4.5V至40V输入电压PWM控制电路能够将占空比从0%线性调整到100%
| 产品型号： | CXLE8849 |
| 产品类型： | 照明驱动 |
| 产品系列： | 降压型LED射灯驱动IC |
| 产品状态： | 量产 |
| 浏览次数： | 57 次 |
产品简介
宽4.5V至40V输入电压范围
输出可从1.235V调整到37V
最小压降1.5V
固定150kHz开关频率
·2A恒定输出电流能力
·内部优化功率晶体管
出色的线路和负载调节
TTL关闭能力
·带滞后功能的开/关引脚
输出恒流回路
内置热关机功能
内置电流限制功能
内置输出过压保护
技术参数
| 输入电压范围 (VIN) | ≤ 4.5V-45VV |
|---|---|
| 输出电压 (VOUT) | adj |
| 输出电流 (IOUT) | 2A |
| 工作频率 | 150KHz |
| 转换效率 | 83% |
| 封装类型 | ESOP8 |
| Dimming method | PWM调光 |
| 功率管 | 内置MOS |
| 功耗 | 10μA |
| Thd | .02 |
| Pf value | .98 |
| Topology | 降压型LED射灯驱动IC |
| Application | 照明驱动 |
| Topology type | BUCK |
| Ripple | <5% |
| Operating temp | -40℃~85℃ |
| Protection | OVP/OCP/短路保护 |
| Certification | UL/CE |
| Features | 射灯驱动IC |
产品详细介绍
目录
产品概述 返回TOP
The CXLE8849 is a 150KHz fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 2A load with high efficiency, low ripple and excellent line and load regulation. Requiring a minimum number of external components, the regulator is simple to use and include internal frequency compensation and a fixed-frequency oscillator. The PWM control circuit is able to adjust the duty ratio linearly from 0 to 100%. An enable function, an over current protection function is built inside. An internal compensation block is built in to minimize external component count.
产品特点 返回TOP
Wide 4.5V to 40V Input Voltage Range
„ Output Adjustable from 1.235V to 37V
„ Minimum Drop Out 1.5V
„ Fixed 150kHz Switching Frequency
„ 2A Constant Output Current Capability
„ Internal Optimize Power Transistor
„ Excellent line and load regulation
„ TTL shutdown capability
„ ON/OFF pin with hysteresis function
„ With output constant current loop
„ Built in thermal shutdown function
„ Built in current limit function
„ Built in output over voltage protection
„ SOP8-EP (Exposed PAD) package
应用范围 返回TOP
„ Car Charger
„ Battery Charger
„ LED Constant Current Driver
技术规格书（产品PDF) 返回TOP
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！
产品封装图 返回TOP
电路原理图 返回TOP
相关芯片选择指南 返回TOP 更多同类产品......
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降压型LED射灯驱动IC |
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型号 |
工作电压范围 |
输出电流 |
输出电 流精度 |
线性调 整率 |
效率 |
工作频率 |
调光功能 |
封装 |
|
6V-40V |
1.2A |
3% |
1.50% |
98% |
1MHz(max) |
PWM调光 |
ESOP8 |
|
|
6V-40V |
1.2A |
3% |
1.50% |
98% |
1MHz(max) |
PWM调光 |
SOT-26 |
|
|
6V-60V |
1.2A |
2% |
94% |
1.1MHz |
PWM/模拟 调光 |
SOT-89-5 |
||
|
2V-6.5V |
0.95A |
10% |
0.45% |
92% |
1.4 MHz |
PWM调光 |
SOT-25 |
|
|
2.5V-5.5V |
0.7A |
3% |
93% |
1.4MHz |
PWM调光 |
SOT-25 |
||
|
5.5V-36V |
扩流2.5A |
1% |
96% |
1MHz |
PWM调光 |
SOT-26 |
||
|
4V--28V |
扩流25W |
1% |
96% |
2MHz |
PWM/模拟 调光 |
SOT-26 |
||
|
2.5V-100V |
扩流2.5A |
1% |
90% |
1MHz |
PWM调光 |
SOT-26 |
||
|
5-100V |
1.5A |
1% |
92% |
1MHz |
PWM/模拟 调光 |
ESOP8 |
||
|
5-100V |
2.5A |
1% |
92% |
1MHz |
PWM/模拟 调光 |
ESOP8 |
||
|
6V-100V |
扩流3A |
3% |
95% |
200KHz |
PWM调光 |
SOT-26 |
||
|
8V-45V |
3A |
3% |
95% |
220KHz |
ESOP8 |
|||
|
8V-40V |
4A |
3% |
95% |
220KHz |
PWM调光 |
TO252-5L |
||
|
8V-40V |
5A |
3% |
95% |
220KHz |
TO263-5L |
|||
|
5V-36V |
1.5A |
2% |
96% |
380KHz |
PWM调光 |
SOP-8 |
||
|
4.5V-45V |
2A |
2% |
83% |
150KHz |
PWM调光 |
ESOP8 |
||
|
8V-45V |
3A |
2% |
89% |
150KHz |
ESOP8 |
|||
|
8V-40V |
3A |
2% |
89% |
180KHz |
SOP8 |
|||
|
8V-40V |
3.5A |
2% |
87% |
180KHz |
PWM调光 |
ESOP8 |
||
|
8V-40V |
2A |
2% |
89% |
110KHz |
SOP8 |
|||
|
7V-40V |
2.5A |
2% |
89% |
250KHz |
ESOP8 |
|||
|
8V-40V |
5A |
2% |
86% |
150KHz |
TO263-5L |
|||
|
6V-40V |
1.2A |
3% |
1.50% |
98% |
1MHz(max) |
PWM调光 |
SOT89-5 |
|
|
6V-34V |
1.0A |
5% |
1.50% |
97% |
1MHz(max) |
PWM/模拟 调光 |
SOT89-5 |
|
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