Protector 
Power 
Signal 
Driver 
Automotive ET1206
General Description
The ET1206 is designed to drive AMOLED displays (Active Matrix Organic Light Emitting Diode) requiring two supply rails, VOP and VON. The ET1206 is a highly integrated Boost, LDO and inverting charge pump to generate positive and negative output voltage. The SWIRE pin turns a boost converter for VOP, a negative charge pump VON on or off. VON can be programmed by a MCU through a dedicated pin which implements single-wire protocol. The negative output voltages can be adjusted from -0.6V to -2.4V with 100mV steps by SWIRE interface protocol. Soft start with controlled inrush current limit, thermal shutdown and over current protection are integrated functions of the device.
ET1206 is available in WLCSP15 package to achieve optimized solution for PCB space.
Features
2.9V to 4.8V input voltage range
VOP output:
-- Fixed 4.6V positive voltage output
-- 50mA output current capability
-- Excellent line/load transient response
-- Output is clean without random moving
VON output:
-- Negative Charge Pump output
-- Digitally programmable VON: -0.6V to -2.4V (0.1V step)
-- VON default value is -2.4V
-- 50mA output current capability
0V drive and off function are supported
Single-wire digital interface for programming
Output short circuit protection
Thermal shutdown
Under-voltage lock out
Built-in soft-start
Programmable output fast discharge function
High impedance output when IC shutdown
WLCSP15 package (0.4mm pitch)
Applications
Active matrix OLED power supply in portable devices
Smart watch and Wearable device
Pin Configuration
Block Diagram
Application Circuits
