中文
EnglishLED Backlight Controller CXLE81112/CXLE81112A is current mode DC/DC controller that drives up to four strings connected in parallel configuration with multiple LEDs in each string connected in series.
目录
产品概述 返回TOP
The CXLE81112/CXLE81112A is current mode DC/DC controller that drives up to four strings connected in parallel configuration with multiple LEDs in each string connected in series. External current sense resistor and slope compensation resistor make it flexible for various applications. A PWM dimming input controls a duty ratio from 0% to 100% with frequency up to few kilohertz. The CXLE81112/CXLE81112A includes hiccup protection from both short and open circuits, with automatic recovery after the fault condition is cleared. The CXLE81112 is available in a TQFN4X4-24 package. The CXLE81112A is available in a TQFN4X4-28 and SOP-28 package.
产品特点 返回TOP
„ 7V~27V input voltage range
„ High Power Current Mode DC/DC boost Controller
„ Drives up to 4 strings in parallel
„ External Analog/True PWM Dimming
„ +/-2% Voltage Reference
„ Programmable Switching Frequency
„ Programmable Slope Compensation
„ Programmable Current Limit
„ +0.2A/-0.4A Gate Driver
„ Input Under Voltage Protection
„ Output Short Circuit Protection
„ Hiccup Mode Protection for Output Over Voltage Protection and LED Light Bar Short/Open Protection
„ Thermal Shutdown
„ Available in TQFN4X4-24/TQFN4X4-28/SOP-28 Package
应用范围 返回TOP
„ TV
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 |
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