LED照明驱动器 60W Common Anode Capable Constant Current Buck LED Driver Requires No Ext. Current Sensing Res 8-WSON -40 to 125
The LM3414 and LM3414HV are 1-A 60-W1 common anode-capable constant current buck drivers. They are suitable for driving single string of 3-W HBLED with up to 96% efficiency. They accept input voltages from 4.5 VDC to 65 VDC and deliver up to 1-A average LED current with ±3% accuracy. The integrated low-side N-channel power MOSFET and current sensing element realize simple and low component count circuitry, as no bootstrapping capacitor and external current-sensing resistor are required. An external small-signal resistor to ground provides very fine LED current adjustment, analog dimming, and thermal fold-back functions.
Constant switching frequency operation eases EMI. No external loop compensation network is needed. The proprietary Pulse-Level-Modulation PLM control method benefits in high conversion efficiency and true average LED current regulation. Fast response time realizes fine LED current pulse fulfilling the 240 Hz 256-step dimming resolution requirement for general lighting.
The LM3414 and LM3414HV are available in SOIC-8 and 3 mm × 3 mm WSON-8 packages.
频率 500 kHz
输出接口数 1
输出电压 0.2V ~ 42V
输出电流 1 A
供电电流 3500 mA
静态电流 3.20 mA
调节输出数 1
开关频率 250 kHz
过温保护 Yes
拓扑结构 Buck
工作温度Max 125 ℃
工作温度Min -40 ℃
电源电压 4.5V ~ 42V
电源电压Max 42 V
电源电压Min 4.5 V
输入电压 4.5V ~ 42V
安装方式 Surface Mount
引脚数 8
封装 WSON-8
封装 WSON-8
工作温度 -40℃ ~ 125℃ TJ
产品生命周期 Active
包装方式 Tape & Reel TR
制造应用 汽车级,照明
RoHS标准 RoHS Compliant
含铅标准 Lead Free
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
LM3414SD/NOPB TI 德州仪器 | 当前型号 | 当前型号 |
LM3414SDX/NOPB 德州仪器 | 完全替代 | LM3414SD/NOPB和LM3414SDX/NOPB的区别 |