LED6000数据手册集成电路（IC）的LED驱动器规格书PDF

描述 Description

The LED6000 is a step-down monolithic switching regulator designed to source up to 3 A DC current for high power LED driving. The 250 mV typical RSENSE voltage drop enhances the efficiency. Digital dimming is implemented by driving the dedicated DIM pin.

The adjustable current limitation, designed to select the inductor RMS in accordance with the nominal output LED current, and the adjustability of the switching frequency allow the size of the application to be compact. The embedded switchover feature on the VBIAS pin maximizes efficiency. Multiple devices can be synchronized by sharing the SYNCH pin to prevent beating noise in low-noise applications, and to reduce the input current RMS value.

The device is fully protected against overheating, overcurrent and output short-circuit.

The LED6000 is available in an HTSSOP16 exposed pad package.

特性 Features

• Up to 3 A DC output current
• 4.5 V to 61 V operating input voltage
• RDS,ON= 250 mΩ typ.
• Adjustable fSW(250 kHz - 1.5 MHz)
• Dimming function with dedicated pin
• Low IQshutdown (10 μA typ. from VIN)
• Low IQoperating (2.4 mA typ.)
• ± 3% output current accuracy
• Synchronization
• Enable with dedicated pin
• Adjustable soft-start time
• Adjustable current limitation
• Low dropout operation (12 μs max.)
• VBIAS improves efficiency at light-load
• Output voltage sequencing
• Auto recovery thermal shutdown
• MLCC output capacitor

简介

LED6000属于集成电路（IC）的LED驱动器。由制造生产的LED6000LED 驱动器器件属于 LED 驱动器电源管理集成电路 (PMIC) 系列，可通过标称固定电压的电源为负载（通常为发光二极管）提供电流，并且电流可控。它与用于电压调节的类似产品的主要区别在于，这类器件提供较低的反馈电压（以提高系统能效），而且通常可对器件工作点进行外部控制，可在照明应用中用于实现调光功能。