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CXLE81103升压转换器驱动恒流白色LED软启动消除启动过程中的涌流使能输入反复脉冲调整LED的亮度内置循环电流限制软启动功能数字调光控制
| 产品型号： | CXLE81103 |
| 产品类型： | 背光驱动 |
| 产品系列： | 升压型LED背光 |
| 产品状态： | 量产 |
| 浏览次数： | 43 次 |
产品简介
工作电压：2.5V至5.5V。
·高工作频率：1兆赫
·高输出电压：高达40V（典型值）
·数字调光控制。
·内置循环电流限制。
内置软启动功能。
·0.2V低参考电压
热过载保护
技术参数
| 输入电压范围 (VIN) | 2.5~5.5VV ~ 2.5~5.5VV |
|---|---|
| 输出电压 (VOUT) | 40VV |
| 输出电流 (IOUT) | 1.2AA |
| 工作频率 | 1000kHzHz |
| 转换效率 | 93%% |
| 封装类型 | SOT-23-6 |
| Topology | 升压型LED背光 |
| Led count | 5-6 LED Driver, Can drive 6*4 or 3*12 LEDs |
| Dimming method | PWM调光 |
| Dimming ratio | 1000:1 |
| Protection | 欠压/过温/过流/短路保护 |
| Features | Boost/Buck |
| Efficiency | .92 |
| Pwm frequency | 20kHz |
| Application type | 背光驱动 |
| CH | 1 |
| FSW(kHz) | 1000 |
| VLED FB(V) | .2 |
产品详细介绍
目录
7.相关产品
产品概述 返回TOP
The CXLE81103 step-up converter drives white LEDs with a constant current to provide backlight in cell phones, PDAs, and other hand-held devices. It features allowing series connection of the white LEDs so that the LED currents are identical for uniform brightness. An enable input can be pulsed repeatedly to adjust LED’s brightness. The fast 1.0MHz current-mode PWM control allows for smaller capacitor and inductor. Fault condition protection uses cycle-by-cycle current limiting to sense maximum inductor current, thermal protection and over-voltage protection. Also included soft-start eliminates inrush current during start-up. The 0.2V low reference voltage minimized the power loss across the current-setting resistor. The CXLE81103 is available in SOT-23-6 packages.
产品特点 返回TOP
„ Operating Voltage: 2.5V to 5.5V.
„ High Operating Frequency: 1MHz
„ High Output Voltage: Up to 40V(Typ.)
„ Digital Dimming Control.
„ Built-in Cycle-by Cycle Current-Limiting.
„ Built-in Soft-Start Function.
„ 0.2V Low Reference Voltage
„ Thermal Overload Protection
„ SOT-23-6 Package
应用范围 返回TOP
„ GPS Navigation System
„ Compact Back Light Module
„ Constant Current Source
„ LED Module
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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LED Backlight Driver |
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|
Part NO. |
Vin(V) min. |
Vin(V) max. |
CH |
VOUT (max) |
ISW (A) |
FSW (kHz) |
VLED FB(V) |
Note |
Package |
|
2.5 |
5.5 |
1 |
20 |
1.2 |
1000 |
0.1/0.2 / 0.3 |
LX,GND,FB,EN,OVP,VIN,EN Dimming 100~200kHz,6SxP |
TSOT23-6 |
|
|
2.5 |
5.5 |
1 |
40 |
1.2 |
1000 |
0.2 |
LX,GND,FB,EN,OVP,VIN,EN Dimming 100~200kHz |
TSOT23-6 |
|
|
4.2 |
24 |
6 |
40 |
2 |
600 |
1.25 |
30mA/CH,Dimming 100~25kHz,EN,OCP, OVP,PWM/DC/Mixed DimmingMode |
TQFN4X4-20 |
|
|
2.7 |
5.5 |
6 |
40 |
2 |
600 |
1.25 |
30mA/CH,Dimming 100~25kHz,EN,OCP, OVP,PWM/DC/Mixed Dimming Mode |
TQFN4X4-20 |
|
|
2.5 |
20 |
1 |
20 |
1.2 |
1000 |
0.2 |
OVP,FB,DIMC,GND,LX,BP,PWM, EN,PWM Dimming 100~200kHz,6SxP |
TDFN2X2-8 |
|
|
2.5 |
5.5 |
1 |
40 |
1.2 |
1000 |
0.2 |
LX,GND,FB,EN,OVP,VIN,EN Dimming 100~200kHz |
SOT23-6 |
|
|
2.7 |
5.5 |
1 |
28 |
0.85 |
1000 |
0.2 |
LX,GND,FB,EN,OVP,IN |
TDFN2X2-8/SOT-23-6 |
|
|
2.7 |
7 |
1 |
26 |
0.7 |
600 |
0.2*EN Duty |
FB,COMP,GND,LX, EN,VIN,5k~100kHz EN BrightnessControl |
TDFN2X2-6 |
|
|
2.7 |
7 |
1 |
38 |
0.7 |
600 |
0.2*EN Duty |
FB,COMP,GND,LX, EN,VIN,5k~100kHz EN BrightnessControl |
TDFN2X2-6 |
|
|
5 |
24 |
6 |
40 |
2 |
1000 |
1.23 |
30mA/CH,PWM dimming,EN,SS,OCP, OVP,OTP,OLP,SLP |
TQFN3X3-16 |
|
|
3.2 |
24 |
6 |
40 |
2 |
1000 |
1.23 |
30mA/CH,PWM dimming,EN,SS,OCP, OVP,OTP,OLP,SLP |
TQFN3X3-16 |
|
|
5 |
24 |
6 |
50 |
2 |
750 |
1.23 |
30mA/CH, PWM dimming, EN,SS, OCP,OVP,OTP,OLP |
TQFN4X4-20 |
|
|
4.2 |
24 |
8 |
48 |
3 |
1000 |
0.6 |
30mA/CH,PWM dimming,EN,SS,OCP, OVP,OTP,OLP |
TQFN4X4-24 TSSOP20(FD) |
|
|
7 |
18 |
1 |
EXT |
VCS SET |
ADJ |
1.2 |
Programmable ILED, PWM Dimming, Hiccup mode for OVP,SCP |
SOP-16 |
|
|
10 |
30 |
4 |
EXT |
VCS SET |
ADJ |
0.8 |
20mA~150mA/CH, PWM dimming,EN, SS,OCP,OVP,OTP, OLP,SLP |
TSSOP20(FD) |
|
|
7 |
27 |
4 |
EXT |
VCS SET |
ADJ |
1.23 |
Programmable ILED,True PWM& Analog Dimming,Hiccup mode for OVP,OLP, SLP |
TQFN4X4-24 TQFN4X4-28 |
|
|
5 |
28 |
12 |
EXT |
VCS SET |
ADJ |
0.6 |
60mA/CH G5997,120mA/CH G5999 Analog& PWM Dimming,Slope comp.,OCP,UVP,OTP, Hiccup mode for OVP,SLP |
SOP28/TSSOP18(FD)/TQFN5X5-28 |
|
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