6-Channels 40V White LED Driver with Boost Regulator CXLE81101 automatically regulated supply voltage for the LED light bars without the need to calculate the output for different LED types.

发布时间：2020-04-06 09:43:38 浏览次数：697 作者：嘉泰姆

摘要：6-Channels 40V White LED Driver with Boost Regulator CXLE81101 automatically regulated supply voltage for the LED light bars without the need to calculate the output for different LED types.

The CXLE81101 is a high-efficiency 6-channel white LED driver. It is designed for LCD panel that employs an LED array as the lighting source. An integrated switch current mode boost controller drives six strings in parallel and supports up to 10 pieces of LEDs per string. The CXLE81101 automatically regulated supply voltage for the LED light bars without the need to calculate the output for different LED types. It also integrates a 40V n-channel MOSFET that provides high output power. The 6-channel current driver is ideal for constant current driving, and well matched less than 3%. To set the maximum driving current, the ISET pin is used to determine reference current. Each channel of the current drivers is set to 800 times of this reference current. A PWM pin can be used to perform PWM dimming from the range of 100Hz to 25kHz. The MODE pin in CXLE81101 is used to set the dimming mode. If MODE pin set to floating, the dimming mode is in the PWM mode, the current driver ON/OFF is synchronized with the PWM signal. If Mode pin set to AGND, PWM and ILED current is set at PWM duty multiplied by ISET current when PWM duty ≥ 25%. If the PWM duty <25%, the ILED current is fixed at 0.25xISET, and the dimming duty is 4 x PWM duty. If MODE set to VDC, the dimming mode operated in the Pure DC mode, the current-source outputs are DC dimming and the PWM duty cycle modulates the amplitude of the currents. Open LED-string automatically disable the channel from entering over voltage protection.

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„ Wide 2.7V to 5.5V Input Supply Range rXm嘉泰姆

„ 600KHz Fixed Frequency rXm嘉泰姆

„ 40V/2A, 0.2Ω n-channel MOSFET rXm嘉泰姆

„ Maximum Programmable LED Channel Current 30mA rXm嘉泰姆

„ Current accuracy ±3% and current balance ±2% rXm嘉泰姆

„ 100Hz~25kHz PWM Dimming rXm嘉泰姆

„ PWM to DC Dimming rXm嘉泰姆

„ Protection Š Input Under-Voltage Protection rXm嘉泰姆

Š Over Current Protection rXm嘉泰姆

Š Over Voltage Protection rXm嘉泰姆

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„ UMPC and Notebook Computer BacklightrXm嘉泰姆

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Part NO.rXm嘉泰姆	Vin(V)rXm嘉泰姆 min.rXm嘉泰姆	Vin(V)rXm嘉泰姆 max.rXm嘉泰姆	CHrXm嘉泰姆	VOUTrXm嘉泰姆 (max)rXm嘉泰姆	ISWrXm嘉泰姆 (A)rXm嘉泰姆	FSWrXm嘉泰姆 (kHz)rXm嘉泰姆	VLEDrXm嘉泰姆 FB(V)rXm嘉泰姆	NoterXm嘉泰姆	PackagerXm嘉泰姆
CXLE8198rXm嘉泰姆	2.5rXm嘉泰姆	5.5rXm嘉泰姆	1rXm嘉泰姆	20rXm嘉泰姆	1.2rXm嘉泰姆	1000rXm嘉泰姆	0.1/0.2rXm嘉泰姆 / 0.3rXm嘉泰姆	LX,GND,FB,EN,OVP,VIN,EN Dimming rXm嘉泰姆 100~200kHz,6SxPrXm嘉泰姆	TSOT23-6rXm嘉泰姆
CXLE8199rXm嘉泰姆	2.5rXm嘉泰姆	5.5rXm嘉泰姆	1rXm嘉泰姆	40rXm嘉泰姆	1.2rXm嘉泰姆	1000rXm嘉泰姆	0.2rXm嘉泰姆	LX,GND,FB,EN,OVP,VIN,EN Dimming rXm嘉泰姆 100~200kHzrXm嘉泰姆	TSOT23-6rXm嘉泰姆
CXLE81100rXm嘉泰姆	4.2rXm嘉泰姆	24rXm嘉泰姆	6rXm嘉泰姆	40rXm嘉泰姆	2rXm嘉泰姆	600rXm嘉泰姆	1.25rXm嘉泰姆	30mA/CH,Dimming 100~25kHz,EN,OCP,rXm嘉泰姆 OVP,PWM/DC/Mixed DimmingModerXm嘉泰姆	TQFN4X4-20rXm嘉泰姆
CXLE81101rXm嘉泰姆	2.7rXm嘉泰姆	5.5rXm嘉泰姆	6rXm嘉泰姆	40rXm嘉泰姆	2rXm嘉泰姆	600rXm嘉泰姆	1.25rXm嘉泰姆	30mA/CH,Dimming 100~25kHz,EN,OCP, OVP,PWM/DC/Mixed Dimming ModerXm嘉泰姆	TQFN4X4-20rXm嘉泰姆
CXLE81102rXm嘉泰姆	2.5rXm嘉泰姆	20rXm嘉泰姆	1rXm嘉泰姆	20rXm嘉泰姆	1.2rXm嘉泰姆	1000rXm嘉泰姆	0.2rXm嘉泰姆	OVP,FB,DIMC,GND,LX,BP,PWM, EN,PWMrXm嘉泰姆 Dimming 100~200kHz,6SxPrXm嘉泰姆	TDFN2X2-8rXm嘉泰姆
CXLE81103rXm嘉泰姆	2.5rXm嘉泰姆	5.5rXm嘉泰姆	1rXm嘉泰姆	40rXm嘉泰姆	1.2rXm嘉泰姆	1000rXm嘉泰姆	0.2rXm嘉泰姆	LX,GND,FB,EN,OVP,VIN,EN Dimming rXm嘉泰姆 100~200kHzrXm嘉泰姆	SOT23-6rXm嘉泰姆
CXLE81104rXm嘉泰姆	2.7rXm嘉泰姆	5.5rXm嘉泰姆	1rXm嘉泰姆	28rXm嘉泰姆	0.85rXm嘉泰姆	1000rXm嘉泰姆	0.2rXm嘉泰姆	LX,GND,FB,EN,OVP,INrXm嘉泰姆	TDFN2X2-8/SOT-23-6rXm嘉泰姆
CXLE81105rXm嘉泰姆	2.7rXm嘉泰姆	7rXm嘉泰姆	1rXm嘉泰姆	26rXm嘉泰姆	0.7rXm嘉泰姆	600rXm嘉泰姆	0.2*ENrXm嘉泰姆 DutyrXm嘉泰姆	FB,COMP,GND,LX, EN,VIN,5k~100kHz EN BrightnessControlrXm嘉泰姆	TDFN2X2-6rXm嘉泰姆
CXLE81106rXm嘉泰姆	2.7rXm嘉泰姆	7rXm嘉泰姆	1rXm嘉泰姆	38rXm嘉泰姆	0.7rXm嘉泰姆	600rXm嘉泰姆	0.2*ENrXm嘉泰姆 DutyrXm嘉泰姆	FB,COMP,GND,LX, EN,VIN,5k~100kHz EN BrightnessControlrXm嘉泰姆	TDFN2X2-6rXm嘉泰姆
CXLE81107rXm嘉泰姆	5rXm嘉泰姆	24rXm嘉泰姆	6rXm嘉泰姆	40rXm嘉泰姆	2rXm嘉泰姆	1000rXm嘉泰姆	1.23rXm嘉泰姆	30mA/CH,PWM dimming,EN,SS,OCP,rXm嘉泰姆 OVP,OTP,OLP,SLPrXm嘉泰姆	TQFN3X3-16rXm嘉泰姆
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CXLE81109rXm嘉泰姆 B/C/LrXm嘉泰姆	4.2rXm嘉泰姆	24rXm嘉泰姆	8rXm嘉泰姆	48rXm嘉泰姆	3rXm嘉泰姆	1000rXm嘉泰姆	0.6rXm嘉泰姆	30mA/CH,PWM dimming,EN,SS,OCP,rXm嘉泰姆 OVP,OTP,OLPrXm嘉泰姆	TQFN4X4-24rXm嘉泰姆 TSSOP20(FD)rXm嘉泰姆
CXLE81110rXm嘉泰姆	7rXm嘉泰姆	18rXm嘉泰姆	1rXm嘉泰姆	EXTrXm嘉泰姆	VCS rXm嘉泰姆 SETrXm嘉泰姆	ADJrXm嘉泰姆	1.2rXm嘉泰姆	Programmable ILED, PWM Dimming,rXm嘉泰姆 Hiccup mode for OVP,SCPrXm嘉泰姆	SOP-16rXm嘉泰姆
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上一篇： 6-Channels 40V White LED Driver with Boost Regulator CXLE81100 is a high-efficiency 6-channel white LED driver. It is designed for LCD panel that employs an LED array as the lighting source. An integr

下一篇： CXLE81102 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

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6-Channels 40V White LED Driver with Boost Regulator CXLE81101 automatically regulated supply voltage for the LED light bars without the need to calculate the output for different LED types.

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6-Channels 40V White LED Driver with Boost Regulator CXLE81101 automatically regulated supply voltage for the LED light bars without the need to calculate the output for different LED types.

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