CXLE86246 is a boost type constant current LED driver that integrates high-frequency power transistors and Schottky diodes. Its input voltage range covers 2.5V~20V and can accurately drive 1-10 strings of LEDs. The chip adopts a constant switching frequency of 1.2MHz and a built-in frequency compensation circuit, significantly reducing the cost of peripheral components and PCB space requirements. Its 200mV low feedback voltage design effectively reduces the power consumption of sampling resistors, and the EN pin combines TTL switching and 0%~100% PWM dimming functions, suitable for ultra-low static current and miniaturized application scenarios.
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[ CXLE86246 ]"
Product Overview
CXLE86246 is a boost type constant current LED driver that integrates high-frequency power transistors and Schottky diodes. Its input voltage range covers 2.5V~20V and can accurately drive 1-10 strings of LEDs. The chip adopts a constant switching frequency of 1.2MHz and a built-in frequency compensation circuit, significantly reducing the cost of peripheral components and PCB space requirements. Its 200mV low feedback voltage design effectively reduces the power consumption of sampling resistors, and the EN pin combines TTL switching and 0%~100% PWM dimming functions, suitable for ultra-low static current and miniaturized application scenarios.
Product Features
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core performance：
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Wide input adaptation2.5V~20V wide voltage input, compatible with multiple power supply environments
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High power integrationBuilt in high-frequency power transistor and Schottky diode, simplifying circuit design
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High Efficiency and Energy Saving85% system efficiency, maximum 500mA switch current output
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High frequency advantage1.2MHz switching frequency, supporting miniaturization of inductors and capacitors
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intelligent control：
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Flexible dimmingEN pin supports PWM duty cycle continuous brightness adjustment
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ultra-low powerShutdown current is only 3μ A, extending battery life
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Multiple Protection：
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LED open circuit protection
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Thermal Shutdown Protection
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Class 3A HBM ESD protection (>8kV)
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Packaging advantageSOT23-6 ultra small package, suitable for compact device layout
shouldScope of use
Technical Specifications (Product PDF);
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Bill of Materials
PCB layout
DEMO physical image
Typical performance curve
PCB Layout Guide
1. Power lines such as VIN, GND, SW, VOUT, etc., thick, short, and straight;
2. CS wiring should be kept away from switch signals such as inductors, and it is recommended to use a ground wire to surround it;
3. The output capacitor is located near the VOUT and GND pins of the chip;
4. The input capacitor is located near the VIN and GND pins of the chip.
Selection Guide for Related Chips;Return to TOP More similar products .....
| model | Product features | power | input voltage | frequency | Switching current | Constant current accuracy | efficiency | output voltage | reference voltage | encapsulation |
| CXLE8601 | High voltage boost constant current, enable | 8W | 3.6~24V | 400KHz | 2A | ± 5% | 92% | ADJ(5~32V) | 0.22V | SOP8 |
| CXLE8602 | High voltage boost constant current, enable | 8W | 3.6~24V | 400KHz | 2A | ± 5% | 92% | ADJ(5~60V) | 0.22V | SOP8 |
| CXLE8603 | High voltage boost constant current, enable | 8W | 5~40V | 400KHz | 2A | ± 3% | 95% | ADJ(8~60V) | 0.22V | SOP8 |
| CXLE8604 | High voltage boost constant current, enable | 20W | 3.6~32V | 180KHz | 4A | ± 5% | 93% | ADJ(5~60V) | 0.22V | TO252-5L |
| CXLE8605 | High voltage boost constant current, enable | 50W | 5~32V | 180KHz | 5A | ± 5% | 93% | ADJ(8~60V) | 0.22V | TO263-5L |
| CXLE8609 | Voltage reduction and constant current | 12W | 8~40V | 220KHz | 3A | ± 3% | 97% | ADJ(0.21~37V) | 0.21V | SOP8-EP |
| CXLE8610 | Voltage reduction and constant current | 30W | 8~36V | 220KHz | 4A | ± 3% | 97% | ADJ(0.21~33V) | 0.21V | TO252-5L |
| CXLE8611 | Voltage reduction and constant current, high power | 50W | 8~36V | 220KHz | 5A | ± 3% | 97% | ADJ(0.21~33V) | 0.21V | TO263-5L |
| CXLE8609A | Voltage reduction and constant current | 12W | 8~45V | 220KHz | 3A | ± 3% | 97% | ADJ(0.21~33V) | 0.21V | SOP8-EP |
| CXLE8612 | High voltage step-down constant current | 50W | 12~100V | PFM | 1A | ± 4% | 98% | ADJ(3~60V) | 0.1V | TO263-5L |
| CXLE8614 | High voltage step-down constant current | 8W | 24~100V | PFM | 0.5A | ± 5% | 96% | ADJ(8~26V) | 0.2V | SOP8 |
| CXLE86231 | High voltage step-down constant current | 12W | 8~60V | 220KHz | 1.5A | ± 3% | 95% | ADJ(0.21~40V) | 0.21V | SOP8-EP |
| CXLE86232 | Voltage reduction synchronous rectification constant current drive | 10W | 5~45V | 200KHz | 2A | ± 4% | 95% | ADJ | 0.23V | SOP8 |
| CXLE86233 | Voltage reduction synchronous rectification constant current drive | 15W | 5~45V | 200KHz | 3A | ± 4% | 95% | ADJ | 0.23V | SOP8-EP |
| CXLE86234 | Voltage reduction synchronous rectification constant current drive | 30W | 5~45V | 200KHz | 4A | ± 4% | 95% | ADJ | 0.23V | TO252-5L |
| CXLE86235 | Voltage reduction synchronization, constant current, high power | 50W | 5~45V | 200KHz | 5A | ± 4% | 95% | ADJ | 0.23V | TO263-5L |
| CXLE86236 | Voltage reduction synchronization, constant current, high power | 80W | 5~45V | 200KHz | 6A | ± 4% | 95% | ADJ | 0.23V | TO220-5L |
| CXLE86237 | Voltage reduction synchronization, constant current | 30W | 5~45V | 150KHz | 4A | ± 4% | 97% | ADJ | 0.23V | TO252-5L |
| CXLE86238 | Voltage reduction synchronization, constant current, enable | 10W | 5~45V | 150KHz | 2A | ± 4% | 94% | ADJ | 0.23V | SOP8 |
| CXLE86239 | Voltage reduction synchronization, constant current, enable | 15W | 5~45V | 150KHz | 3A | ± 4% | 95% | ADJ | 0.23V | SOP8-EP |
| CXLE86240 | Voltage reduction, high voltage synchronization, constant current | 5W | 5~90V | 150KHz | 0.6A | ± 3% | 93% | ADJ | 0.22V | SOP8 |
| CXLE86241 | Voltage reduction, high voltage synchronization, constant current | 15W | 5~90V | 150KHz | 1.5A | ± 3% | 93% | ADJ | 0.22V | TO252-5L |
| CXLE86242 | Voltage reduction, high voltage synchronization, constant current, high power | 25W | 5~90V | 150KHz | 2A | ± 3% | 93% | ADJ | 0.22V | TO263-5L |
| CXLE86243 | Voltage reduction, high voltage synchronization, constant current, high power | 30W | 5~90V | 150KHz | 2A | ± 3% | 93% | ADJ | 0.22V | TO220-5L |
| CXLE86244 | Voltage reduction synchronization, constant current, enable | 10W | 5~45V | 200KHz | 2A | ± 3% | 93% | ADJ | 0.23V | SOP8 |
| CXLE86245 | Voltage reduction synchronization, constant current, enable | 15W | 5~45V | 200KHz | 3A | ± 3% | 93% | ADJ | 0.23V | SOP8-EP |
| CXLE86246 | Boost constant current, built-inSBDrectification | 2W | 2.5~20V | 1.2MHz | 0.5A | ± 3% | 85% | 1~10S | 0.2V | SOT23-6 |
| CXLE86247 | Boost constant current, built-inSBDRectification and supportSEPIC | 6W | 2.5~25V | 1.2MHz | 1.0A | ± 3% | 88% | 1~8S | 0.2V | SOP8-EP |
| CXLE86248 | Boost constant current, built-inSBDRectification and supportSEPIC | 4W | 2.5~25V | 1.2MHz | 0.6A | ± 3% | 87% | 1~10S | 0.2V | DFN3*3-8 |
| CXLE86249 | Boost constant current, built-inSBDRectification and supportSEPIC | 6W | 2.5~25V | 1.2MHz | 1.0A | ± 3% | 88% | 1~8S | 0.2V | DFN3*3-8 |
