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：708 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.

产品特点 返回TOPlrs嘉泰姆

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

„ 600KHz Fixed Frequency lrs嘉泰姆

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

„ Maximum Programmable LED Channel Current 30mA lrs嘉泰姆

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

„ 100Hz~25kHz PWM Dimming lrs嘉泰姆

„ PWM to DC Dimming lrs嘉泰姆

„ Protection Š Input Under-Voltage Protection lrs嘉泰姆

Š Over Current Protection lrs嘉泰姆

Š Over Voltage Protection lrs嘉泰姆

Š Thermal Protection lrs嘉泰姆

„ RoHs Compliant lrs嘉泰姆

„ TQFN4X4-20 Packagelrs嘉泰姆

应用范围 返回TOPlrs嘉泰姆

„ UMPC and Notebook Computer Backlightlrs嘉泰姆

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Part NO.lrs嘉泰姆	Vin(V)lrs嘉泰姆 min.lrs嘉泰姆	Vin(V)lrs嘉泰姆 max.lrs嘉泰姆	CHlrs嘉泰姆	VOUTlrs嘉泰姆 (max)lrs嘉泰姆	ISWlrs嘉泰姆 (A)lrs嘉泰姆	FSWlrs嘉泰姆 (kHz)lrs嘉泰姆	VLEDlrs嘉泰姆 FB(V)lrs嘉泰姆	Notelrs嘉泰姆	Packagelrs嘉泰姆
CXLE8198lrs嘉泰姆	2.5lrs嘉泰姆	5.5lrs嘉泰姆	1lrs嘉泰姆	20lrs嘉泰姆	1.2lrs嘉泰姆	1000lrs嘉泰姆	0.1/0.2lrs嘉泰姆 / 0.3lrs嘉泰姆	LX,GND,FB,EN,OVP,VIN,EN Dimming lrs嘉泰姆 100~200kHz,6SxPlrs嘉泰姆	TSOT23-6lrs嘉泰姆
CXLE8199lrs嘉泰姆	2.5lrs嘉泰姆	5.5lrs嘉泰姆	1lrs嘉泰姆	40lrs嘉泰姆	1.2lrs嘉泰姆	1000lrs嘉泰姆	0.2lrs嘉泰姆	LX,GND,FB,EN,OVP,VIN,EN Dimming lrs嘉泰姆 100~200kHzlrs嘉泰姆	TSOT23-6lrs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

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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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