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English6-string LED Driver with Build-in Boost Regulator CXLE81116 develops a high efficiency boost regulator with six matching current source to drive up to six strings of white LEDs in the backlight appli
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产品概述 返回TOP
CXLE81116 develops a high efficiency boost regulator with six matching current source to drive up to six strings of white LEDs in the backlight applications of LCD panels.
The device operates over a wide input voltage range of 4.5V to 24V. CXLE81116 has a fixed switching frequency of 1MHz. The LED current can be programmed from 10mA to 30mA. CXLE81116 also integrates PWM dimming function for the accurate LED current control.
The CXLE81116 is available in QFN3x3-16 package.
产品特点 返回TOP
1MHz fixed switching frequency
Integrated loop compensation
Drive up to 6 strings of LEDs with up to 10 LED per string
Minimum on time: 80ns typical
Minimum off time: 100ns typical
Over voltage protection
Low Rdson of internal boost switch: 200mohm
10000:1 PWM brightness control at 200Hz
Dimming Frequency: 100Hz~30kHz
+/-2% current matching among strings guaranteed for above 10% dimming level
Programmable LED current: up to 30mA per string. +/-3% accuracy
Internal softstart
Compact packages: QFN3x3-16
应用范围 返回TOP
Notebook panel backlight
TV Panel Backlight
技术规格书（产品PDF) 返回TOP
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Step Up LED Backlight Regulator(Integrated Boost Switch) |
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Part Number |
Package |
Max LED Voltage Per String(V) |
Max LED Current Per Sting(mA) |
No. of strings |
Special Function |
Application_param |
|
SOT236 |
30 |
300 |
1 |
Dimming Freq.: 20kHz~1MHz |
PAD, GPS, MID, Tablet |
|
|
SOT236 |
30 |
300 |
1 |
PAD, GPS, MID, Tablet |
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|
DFN3x316 |
33 |
30 |
6 |
NB, PAD, Tablet |
||
|
QFN3x316 |
43 |
40 |
4 |
NB, PAD, Tablet |
||
|
SOT236 |
30 |
140 |
1 |
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