UG-6028GDEBF02 Datasheet, PDF(16/28 Page) List of Unclassifed Manufacturers

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UG-6028GDEBF02 Datasheet, PDF (16/28 Pages) List of Unclassifed Manufacturers – Product Specification

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WiseChip Semiconductor Inc.

4. Functional Specification

4.1 Commands

Refer to the Technical Manual for the SEPS525

Doc. No: SAS1-0I013-A

4.2 Power down and Power up Sequence

To protect OEL panel and extend the panel life time, the driver IC power up/down routine should include

a delay period between high voltage and low voltage power sources during turn on/off. It gives the

OEL panel enough time to complete the action of charge and discharge before/after the operation.

4.2.1 Power up Sequence:

1. Power up VDD & VDDIO

2. Send Display off command

3. Initialization

4. Clear Screen

5. Power up VDDH

6. Delay 100ms

(When VDDH is stable)

7. Send Display on command

4.2.2 Power down Sequence:

1. Send Display off command

2. Power down VDDH

3. Delay 100ms

(When VDDH is reach 0 and panel is

completely discharges)

4. Power down VDD & VDDIO

VDDH

VDD, VDDIO

VSS/Ground

VDDH

VDD, VDDIO

VSS/Ground

VDD, VDDIO on

VDDH on

Display on

Display off

VDDH off

VDD, VDDIO off

Note 9:

1) Since an ESD protection circuit is connected between VDD, VDDIO and VDDH inside the driver IC,

VDDH becomes lower than VDD & VDDIO whenever VDD & VDDIO is ON and VDDH is OFF.

2) VDDH should be kept float (disable) when it is OFF.

3) Power Pins (VDD, VDDIO, VDDH) can never be pulled to ground under any circumstance.

4) VDD & VDDIO should not be power down before VDDH power down.

4.3 Reset Circuit

When RESETB input is low, the chip is initialized with the following status:

1. Frame Frequency: 90Hz

2. Oscillation: Internal Oscillator On

3. DDRAM Write Horizontal Address: MX1 = 0x00, MX2 = 0x9F

4. DDRAM Write Vertical Address: MY1 = 0x00, MY2 = 0x7F

5. Display Data RAM Write: HC = 1, VC = 1, HV = 0

6. RGB Data Swap: Off

7. Row Scan Shift Direction: G0, G1, â¦ , G126, G127

8. Column Data Shift Direction: S0, S1, â¦ , S478, S479

9. Display On/Off: Off

10. Panel Display Size: FX1 = 0x00, FX2 = 0x9F, FY1 = 0x00, FY1 = 0x7F

11. Display Data RAM Read Column/Row Address: FAC = 0x00, FAR = 0x00

12. Precharge Time (R/G/B): 0 Clock

13. Precharge Current (R/G/B): 0ÂµA

14. Driving Current (R/G/B): 0ÂµA

http://www.wisechip.com.tw

4D Systems Pty Ltd

www.4dsystems.com.au

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