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ET6312B

規格型號:ET6312B

封裝:QFN-20

功能描述:The ET6312B are four constant current RGB LED drivers with I2C interface. The independent programmable constant current sinks operate without external components.By the nine internal registers programming, the each three LED channels can work in variety modes, a total of 192 current levels are available for each channel from 0.125mA to 24mA with a 0.125mA step or 0.25mA to 48mA with a 0. 25mA step.

詳細介紹
T6312

ET6312B
 

General Description
 

The ET6312B are four constant current RGB LED drivers with I2C interface. The independent programmable constant current sinks operate without external components.

By the nine internal registers programming, the each three LED channels can work in variety modes, a total of 192 current levels are available for each channel from 0.125mA to 24mA with a 0.125mA step or 0.25mA to 48mA with a 0. 25mA step.

The device has design three kinds of interconnected threads, each channel can carry on any threads mode with an on-chip timing control unit, LED blink rate, fade-in(256 steps) and fade-out(256 steps) are user-adjustable resulting in unique color lighting patterns. The ET6312B have ADDR and SYN pin, it can realize four chips cascade with one group of I2C bus and one synchronous clock. In shutdown mode, the quiescent current is reduced to less than 1μA.


Features
 

● Ultra low dropout regulated current sinks, 75mV typical at 10mA per channel

● Each nine programmable LED setting registers are shared by each three LED

● I2C control, one ADDR pin realize four chip address selection

● SYN pin can supply chips cascade synchronous clock

 Dimming Up/Down Time produced by 256 steps internal PWM

 RGB LED Color Control

 RGB Delay Time and FLASH Period Control

● 192 current levels: 24mA max@0.125mA step or 48mA max@0.25mA step

● VIN Range: 2.7V to 5.5V

● 0.1 μA Shutdown Current

● Pb-free Package: QFN20 3mm 3mm 0.75mm

● Inside Temperature protection


Pin Configuration

 

 


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