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EnglishHigh Efficiency, Constant Current, Boost DC/DC White-LEDs Drive CXLE81104 boost converter contains a 0.7Ω internal switch. The IC operates at constant frequency 1MHz, allowing the use of tiny,
摘要：High Efficiency, Constant Current, Boost DC/DC White-LEDs Drive CXLE81104 boost converter contains a 0.7Ω internal switch. The IC operates at constant frequency 1MHz, allowing the use of tiny,
目录
产品概述 返回TOP
The CXLE81104 boost converter contains a 0.7Ω internal switch. The IC operates at constant frequency 1MHz, allowing the use of tiny, low cost and low height inductors and capacitors. The IC operates from a 2.7V to 5.5V supply voltage. High inrush current at start-up is eliminated using the soft-start function. Constant frequency current mode PWM architecture results in low, predictable output noise. The CXLE81104 includes cycle-by-cycle 850mA current limiting to maximum inductor current and over-temperature protection circuit. The over-voltage protection will be enabled when VOUT exceeds 28V. The current of LED is set by a resistor connected between FB and GND. The CXLE81104 is available in SOT-23-6 & TDFN2X2-8 package.
产品特点 返回TOP
Operating Voltage：2.7V to 5.5V
„ High Operating Frequency：1MHz
„ High Output Voltage：28V
„ Shutdown Current：<1μA
„ Over-Voltage Protection
„ Digital Dimming Control
„ Built-in Cycle-by-Cycle Current-Limiting
„ Soft-Start Function
„ 0.2V Low Reference Voltage
„ SOT-23-6 & TDFN2X2-8 Package
应用范围 返回TOP
„ LED Module
„ Compact Back Light Module
„ Constant Current Source
技术规格书（产品PDF) 返回TOP
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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 |
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