防护 
电源 
信号链 
驱动 
车规 ET6326
General Description
The ET6326 is a constant current RGB LED drivers with I2C interface. The devices are ideally powered from one-cell lithium-ion/polymer, 3-cell NiCd/NiMH/Alkaline batteries, or 3.3V~5V supplies. The independent programmable constant current sinks operate without external components.
By the nine internal registers programming, the 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.
The device has design three kinds of interconnected threads, each channel can carry on any thread. With an on-chip timing control unit, LED blink rate, fade-in and fade-out are user-adjustable resulting in unique color lighting patterns.In shutdown mode, the quiescent current is reduced to less than 1μA.
The driver is available in a small DFN8 package. The package is Pb-free and RoHS compliant.
Features
Ultra low dropout regulated current sinks
75mV typical at 10mA per channel
Programmable LED setting with I2C control
Individual channel control
-- On/Off Interval Time Control
-- Dimming Up/Down Time
-- Current Level Setting
-- RGB LED Color Control
192 current levels: 24mA max, 0.125mA step
±5% current matching for max current
No noise, non-pulsating LED current
Fast, smooth start-up
VIN Range: 2.7V to 5.5V
Low supply current of 200μA typ.
0.1 μA Shutdown Current
Pb-free Package: DFN8 (1.5mm × 1.5mm × 0.45mm )
MSL Level 1
Applications
RGB indicator LEDs
Flashing LEDs
Mobile Phones
Handheld Devices
Digital Cameras
Pin Configuration
Block Diagram
Application Circuits
