EPD PM-IC Control Schematic and Power Management Details
Explore detailed schematics and power management information for EPD PM-IC control, including power input, temperature control, and connector specifications. Learn about utilizing NTC circuits, I2C control, and thermal design considerations.
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Presentation Transcript
EPD PM-IC control schematic 2021. 01. 04 HAJEN
EPD Control Block (IT8951 + TPS651851+ LED DRIVER) LED Driver I2C_1 LED_DRIVE VGH(22V) V_SYS VSH(15V) 3.3V VGL(-20V) VSL(-15V) INT WAKEUP VCOM_CTRL POWERUP POWERGOOD I2C_3 TPS651851 3.3V VCOM(to Panel) 1.8V V3P3(to Panel) HOST PCB (AP CHIPS ET) IT8951 Thermal_control (to Panel) NTC Sensor SPI_1 SDD0~15 READY GDCLK GDSPV SDCLK SDCE_N0 SPI_2 Flash SDLE XOE I2C_2 1.8V Touch
PM-IC and the others schematic 1. PMIC & EPD CONNECTOR Schematic 2. < Reference > EPD DRIVER IC CONTORL Schematic 3. < Reference > led front light Schematic 4. EPD DISPLAY Specification
Request contents 1. EPD PM-IC POWER: It will receive power from system PM-IC(ALL Voltage control) Is there no problem? VSYS=5V POWER CONTORL
Request contents 2. EPD DISPLAY Temperature control Can I use the NTC circuit for EPD DISPLAY THERMAL CONTROL? Is it programmed to enable NTC control in TPS651851PM-IC? Is it possible to I2C control with EPD DRIVER IC? EPD Temperature design notice
