AAT3128

IC AAT3128pinout Diagram and ping d e s c r i p t i o n

Pin De_s_c_r_i_p_t_ions

1 : RSET Current Setting Resistor.  Connect a resistor from RSET to GND to program the maximum LED current

2 : DG Green LED On/Off Switch.  DG turns on/off the green LED.  Connect the green LED cathode to DG.

3 : DR Red LED On/Off Switch.  DR turns on/off the red LED.  Connect the red LED cathode to DR.

4 : DB Blue LED On/Off Switch.  DB turns on/off the blue LED.  Connect the blue LED cathode to DB.

5 : GND Ground.

6 : IN Power Input.  Connect the input power voltage source to IN.  Connect a 1μF ceramic capacitor from IN to GND.

7 :C2- Flying Capacitor 2 Negative Node.  Connect a 1μF ceramic capacitor between C2+ and C2-.

8 :C2+ Flying Capacitor 2 Positive Node.  Connect a 1μF ceramic capacitor between C2+ and C2-.

9 :C1- Flying Capacitor 1 Negative Node.  Connect a 1μF ceramic capacitor between C1+ and C1-.

10: C1+ Flying Capacitor 1 Positive Node.  Connect a 1μF ceramic capacitor between C1+ and C1-.

11 :CP Charge Pump Output.  CP is the output voltage stage of the internal charge pump.  Bypass CP to GND with a 1μF ceramic capacitor.

12 :ISRC1 LED Current Source 1.  ISRC1 controls the current through the LEDs connected to it.  Connect the RGB LED anode or LED array anodes to ISRC1.

13 : ISRC2 LED Current Source 2.  ISRC2 controls the current through the LEDs connected to it.  Connect the RGB LED anode or LED array anodes to ISRC2.

14 : EN/SET Enable/Set Input.  ENSET turns on/off the AAT3128 and is the S2Cwire serial interface input to control the LED color and brightness mood function.  This node uses active high logic.