ET5120/A中文资料LED背光驱动数据手册ETEK规格书

描述 Description

 
The ET5120/A is a versatile constant current LED driver with a high efficiency DC-DC step up “boost”
converter architecture. Unique technology and high 880mA current limit allow ET5120/A to drive up to 37V output (10 LEDs in series).
Alternatively, ET5120/A can deliver 180mA total current with 3 series LEDs per string. It can also maximize the current capability while achieving high conversion efficiency. The optimized 0.9MHz switching frequencies result in small external component size. The driver allows a wide range of PWM dimming frequencies through the CTRL pin.
 

特性 Features

● Wide output range: up to 10 series LEDs

● Integrated 40V high current switch (880mA limit)

● VIN：2.7V~5.5V

● High efficiency PWM converter (up to 90%)

● Low feedback voltage:

ET5120:300mV

ET5120A:200mV

ET5120AY:200mV

● High accuracy across full load range

● LED open-circuit (OVP) protection:37V

● High switching frequency:900kHz

● PWM dimming frequency:100Hz~200kHz

● ET5120(SOT23-6), ET5120A(TSOT23-6),ET5120AY(DFN8)