ST7628 datasheet(59/213 Pages) SITRONIX

Part #	ST7628

Description	65K Color Dot Matrix LCD Controller/Driver

PDF	213 Pages

Scroll/Zoom	100%

Manufacturer	SITRONIX [Sitronix Technology Co., Ltd.]

Direct Link	http://www.sitronix.com.tw

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59 / 213 page

ST7628

Ver 1.4

59/213

2008/08

7.9.4

Frquency Temperature Gradient Compensation Coefficient

ST7628 will auto-switch frame rate on different temperature such as

Figure 11.1. TA, TB and TC are frame rate

switching temperatures which can be defined by customer with command TMPRNG(see section 9.1.70). FA, FB, FC

and FD are switched frame rate which also can be defined by customer with command FRMSEL (see section 9.1.68).

The frame rate range is from 37.5Hz to 170Hz.

When the temperature is in increasing state, frame rate changes to the higher step at TA/TB/TC+TH(

). When

℃

the temperature is in decreasing state, frame rate changes to the lower step at TA/TB/TC. For example: TC=10℃

and TH=5

, FC switches to FD at 15

but FD switches to FC at 10

. Please take

℃

Figure 11.1for reference.

Figure 7.10

Note:

Please make sure to avoid any kind of heating source closing to ST7628 such as back light, to prevent

Vop is not anticipatve because of temperature compensate circuit worked.

ST7628 Datasheet(PDF) 59 Page - Sitronix Technology Co., Ltd.