LP8861QPWPRQ1 购买 Texas Instruments 产品

描述

XT-ShenZhen is a professional supplier of LP8861QPWPRQ1 devices, the quality is guaranteed, 请放心购买! The LP8861QPWPRQ1 device is a low EMI 4-channel LED driver. It is suitable for automotive lighting and has high performance characteristics. XT-ShenZhen从事业务至今 23 years and has always adhered to the concept of treating customers sincerely. Hope our service can solve your problem!

这 LP8861QPWPRQ1 device is an automotive high-efficiency LED driver with an integrated boost/SEPIC converter. The device features low EMI and is very easy to use.
The boost/SEPIC converter provides adaptive output voltage control based on LED current sink headroom voltage. This feature regulates the voltage to the lowest level required under all conditions.
With a wide adjustable frequency range, the LP8861QPWPRQ1 device is able to avoid interference in the amplitude modulated (AM) radio frequency band.
The LP8861QPWPRQ1 device can optionally drive an external p-FET to disconnect the input supply from the system in the event of a fault. This reduces inrush current and reduces standby power consumption.

• 符合汽车应用要求
• Input operating voltage range: 4.5V to 40V
• Quad precision current sinks
– 1% current matching (典型值)
– LED string current up to 100mA/channel
– 10 000:1 dimming ratio at 100Hz
• Integrated boost/SEPIC converter for LED string power
– Output voltage up to 45V
– Switching frequency: 300kHz to 2.2MHz
– Switch sync input
– Spread spectrum reduces electromagnetic interference (EMI)
• Power line field FET control for inrush current protection and standby power savings
• Rich fault detection and fault tolerance features
– fault output
– Open and short LED fault detection
– Automatic reduction of LED current using external temperature sensor
– Thermal shutdown
• Minimize the number of external components