亚博棋牌游戏Allegro MicroSystems LLC posted for car LED lighting a new linear current regulator and controller series products
August 23, 2016
亚博棋牌游戏Allegro MicroSystems LLC posted for car LED lighting a new linear current regulator and controller series products
August 23, 2016
High integration reduces the volume of a solution and cost;Fault handling in accordance with international standards
亚博棋牌游戏Allegro MicroSystems, LLCAnnounced two new used to drive a carThe LEDArray of adjustable linear current regulator.AllegroCompany in accordance withAEC - Q100The standardA6274andA6284Device includes many new features, so as to further enhance the existing linearThe LEDThe performance of the drive products series.These new low electromagnetic interferenceICIntegration is an optional voltage (The pre - regulatorGate driver, able to control the external dynamic and linearPThe channelMOSFETBy most of the power loss is transferred to the external powerFET, which extends the linearThe LEDDrive power output capacity, at the same time, also no longer need oneDC/DCSwitch solution as well as relevant inductor and a diode, also avoid the electromagnetic interference.theseICsixThe LEDEach of the can provide up to60 ma(A6274) or120 ma(A6284) current, through parallel can drive current is up to720 mAtheThe LEDArray.In addition, multiple integration circuit parallel configuration can be used in large lighting system.
LED light output by pulse width modulation (PWM) dimming to adjust, the IC has a built-in PWM dimming circuit, programming by external resistance to accurately control the duty ratio and frequency of the PWM, and thus no longer need usually provided by a local micro controller 555 timer or the PWM signal.At the same time, if the existing PWM signal control module has been available, also can use external PWM signal chip.Two components can be input level configuration for the total output (Full) and changes between (Dim) model, this model to stop/tail lamp (RCL) or the original daytime running lights (DRL) often need.
These devices can provide "blocking" and "unlocked" two versions, the fault detection and protection mechanisms in accordance with the international standard for auto exterior lighting applications.
Two devices with 20 pins eTSSOP encapsulation (suffix LP) supply, with exposed thermal pad in order to enhance thermal performance.
For A6274/84 price of the product and other information, please contact the Allegro Shanghai branch.