SSD1882T1R1 データシートの表示（PDF） - Solomon Systech

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SSD1882T1R1

240 Outputs MLA Row (Common) Driver

Solomon Systech  

12 PRECAUTION

When SSD1882 is used with MLA column driver and MLA power chip to form a low power display

system, the power supply of SSD1882 is actually coming from the MLA power chip outputs. Proper

power up and power down sequence must be followed to protect and to ensure proper functioning of

the system.

The recommended power up and down sequence is as follow:

Power up:

• Pull DOFF# to L

• Provide power to the MLA power chip and MLA column driver.

• Provide LP pulses chain with other controller signals while keeping DOFF# at “L”.

• Wait for a minimum of 150ms to allow the MLA power chip building up appropriate power levels of

the display system.

• Pull DOFF# to H to turn on the display

DOFF#

LP

Signals from LCD

controller

VDD_PWR

VDD_COL

VDD_ROW

Allow more than 150ms for a stable VDD_ROW

Figure 10 – Recommended power up sequence

SSD1882

Rev 1.4

01/2003

SOLOMON

19

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