适用于汽车照明的低 EMI、高性能 4 通道 LED 驱动器 20-HTSSOP -40 to 125
The LP8861-Q1 is an automotive high-efficiency, low-EMI, easy-to-use LED driver with integrated boost/SEPIC converter. It has four high-precision current sinks that can provide high dimming ratio brightness control with a PWM input signal.
The boost/SEPIC converter has adaptive output voltage control based on the LED current sink headroom voltages. This feature minimizes the power consumption by adjusting the voltage to lowest sufficient level in all conditions. The boost/SEPIC converter supports spread spectrum for switching frequency and an external synchronization with dedicated pin. A wide-range adjustable frequency allows the LP8861-Q1 to avoid disturbance for AM radio band.
The LP8861-Q1 has an option to drive an external p-FET to disconnect the input supply from the system in the event of a fault and reduce inrush current and standby power consumption. The device can reduce LED current based on temperature measured with external NTC sensor to protect LED from overheating and extend LED lifetime.
The input voltage range for the LP8861-Q1 is from 4.5 V to 40 V to support automotive stop/start and load dump condition. The LP8861-Q1 integrates extensive fault detection and protection features.
频率 300kHz ~ 2.2MHz
输出接口数 4
输出电压 45 V
输出电流 0.105 A
静态电流 5.00 mA
输出电压Max 48 V
输出电压Min 7 V
输出电流Min 0.095 A
工作温度Max 125 ℃
工作温度Min -40 ℃
安装方式 Surface Mount
引脚数 20
封装 HTSSOP-20
封装 HTSSOP-20
工作温度 -40℃ ~ 125℃ TA
产品生命周期 Active
包装方式 Tape & Reel TR
RoHS标准 RoHS Compliant
含铅标准 Lead Free
ECCN代码 EAR99
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
LP8861QPWPRQ1 TI 德州仪器 | 当前型号 | 当前型号 |
IS31FL3745-CLS4-TR Integrated Silicon SolutionISSI | 功能相似 | LP8861QPWPRQ1和IS31FL3745-CLS4-TR的区别 |