LP8861QPWPRQ1 اشترِ منتج Texas Instruments

وصف

XT-ShenZhen is a professional supplier of LP8861QPWPRQ1 devices, the quality is guaranteed, please rest assured to buy! The LP8861QPWPRQ1 device is a low EMI 4-channel LED driver. It is suitable for automotive lighting and has high performance characteristics. XT-ShenZhen has been in the business for 23 years and has always adhered to the concept of treating customers sincerely. Hope our service can solve your problem!

ال 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.

• Compliant with automotive application requirements
• Input operating voltage range: 4.5V to 40V
• Quad precision current sinks
- 1% current matching (typ.)
– 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