CXLE8165是一个4通道LED的高效驱动程序。它是一个宽范围的输入电压，从6伏到24伏。它能驱动典型的68（17x4）个3片。5V/180mA发光二极管。它包含4个电压控制电流源通道，典型电流匹配为+1%。它是内置的Rds（on）0.25欧姆（典型值）电流模式控制。CXLE8165能够通过SMBus接口控制LED电流。制作的SMBus控制LED电流具有PWM、DC和混合模式。CXLE8165具有使能、停机和故障检测功能。CXLE8165具有广泛的保护功能，包括紫外线、电流限制、LED串开路和短路检测、输出过压保护（OVP）和过热保护
[ CXLE8165 ]
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产品概述 返回TOP
产品特点 返回TOP
· 4 channels
· 6V to 24V Input Voltage Supply
· Drive up to 68(17x4) White LEDs (3.5V/180mA each)
· Current Match (balance) +/- 1% (Typ.)
· Current Accuracy +/-1% (Typ.)
· Built internal SW MOSFET Rds(on) 0.25 ohm (typ.)
· SMBus control to program below:
-LED Current: 22.58mA to 180 mA
-Switching Frequency: 200KHz to 900KHz
-Dimming mode: PWM, DC and Mixed-mode
· Enable / Shutdown Function and Fault indication
· Built in UVLO Control Detection on VIN
· Built in Protection function:
-Built in Internal MOSFET Current Limit function about 3.3A (Typ.)
-String Open / Short Circuit Detection
-Over Voltage Protection
-Over Temperature Protection
· Available in TDFN 5x5-16 Packages
· Halogen and Lead Free Available (RoHS Compliant)
应用范围 返回TOP
· AIO Backlight
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产品封装图 返回TOP
电路原理图 返回TOP
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Lighting and Display Product > White LED Driver |
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Part_No |
Topology |
Archi tecture |
Input Voltage (V) |
Adj. Output Voltage V |
No. of LEDs |
LED Current (Max) (A) |
Switch Current Limit (A) |
Current Sense Voltage (typ)(V) |
Switching Frequency (kHz) |
Dimming Control |
Package |
|
|
min |
max |
max |
||||||||||
|
Boost |
CM |
2.7 |
6 |
32 |
8 |
0.03 |
0.9 |
0.25 |
1000 |
Analog |
SOT23-6 |
|
|
Boost |
VM |
2.5 |
6 |
19 |
4 |
0.03 |
0.4 |
0.25 |
1000 |
Analog PWM |
SOT23-6 |
|
|
Boost |
CM |
2.7 |
21 |
30 |
8 |
0.6 |
3.5 |
0.5 |
1200 |
Analog |
DFN3x3-10 |
|
|
Charge Pump |
- |
2.8 |
4.5 |
- |
4 |
0.03 |
- |
- |
1000 |
Analog PWM Digital |
QFN4x4-16 |
|
|
Charge Pump |
- |
2.8 |
4.5 |
- |
6 |
0.03 |
- |
- |
1000 |
Analog PWM Digital |
QFN4x4-16 |
|
|
Charge Pump |
- |
2.8 |
4.5 |
- |
4 |
0.03 |
- |
- |
1000 |
Analog PWM Digital |
QFN3x3-16 |
|
|
Boost |
CM |
2.5 |
6 |
24 |
6 |
0.03 |
1.2 |
0.1 |
1000 |
Analog PWM |
SOT23-6 |
|
|
Boost |
CM |
2.5 |
6 |
39 |
10 |
0.03 |
0.9 |
0.3 |
1000 |
Analog PWM |
SOT23-6 |
|
|
Boost |
CM |
2.5 |
6 |
24 |
6 |
0.03 |
1.2 |
0.2 |
1000 |
Analog PWM |
SOT23-6 |
|
|
Boost |
CM |
2.5 |
6 |
40 |
10 |
0.03 |
1.5 |
0.2 |
600 |
Analog PWM |
TDFN2x2-6 |
|
|
Boost |
CM |
2.5 |
6 |
24 |
6 |
0.03 |
2 |
0.2 |
1500 |
Analog PWM |
SOT23-6 |
|
|
Buck |
CM |
3 |
5.5 |
- |
SOT23-5 |
|||||||
|
Boost |
CM |
6 |
24 |
65 |
17 |
0.18per string |
3.3 |
0.5 |
200 ~ 900 |
External PWM Dimming/I2C |
TDFN5x5-16 |
|
|
Boost |
CM |
2.7 |
6 |
40 |
10 |
0.03 |
1.5 |
0.2 |
600 |
Analog PWM |
TDFN2x2-6 |
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◀ 上一篇:CXLE8164宽3V~5.5V输入电压1.5A输出峰值电流固定1.5MHz开关频率在100%占空比下工作的低压差同步降压调节器高效单片同步降压稳压器
下一篇▶:CXLE8166白光LED的固定600kHz升压转换器集成N-FET驱动白光LED低导通电阻和低反馈电压降低了功率损耗内部软启动电路消除启动过程中的浪涌电流
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