OM6211 查看數據表（PDF） - Philips Electronics

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OM6211

48×84 dot matrix LCD driver

Philips Electronics 

Philips Semiconductors

48 × 84 dot matrix LCD driver

Product specification

OM6211

Table 4 Typical values for parameters of the HV generator programming

SYMBOL

TC0

TC1

TC2

a

4.57

4.28

4.04

b

30.0

28.0

26.5

Tnom

TC

27

27

27

0

−0.25

−0.5

TC3

3.79

25.0

27

−0.75

UNIT

V

mV

°C

10-3/°C

Example: to achieve VLCD = 8.3 V at temperature Tnom for TC3 it is necessary to set VPR = 180 (decimal).

Example for calibration: Before calibration VPR = 180 was applied, but the measured voltage was VLCD = 8.4 V.

To decrease VLCD by 100 mV the best value for VOS is −4 decimal (11100 binary in the two’s complement notation). So

after calibration with VOS = −4 the proper VPR value is still 180.

As VOS is used for calibration and the default value is 0, for selecting the value of VPR it can always be considered that

VOS = 0.

handbook, full pagewidth

V LCD

MGT847

b

a

00 01 02 03 04 05 06 . . .

VOP7 to VOP0 programming, (00H to FFH).

Fig.5 VLCD programming of OM6211.

. . . FD FE FF

V OP

2002 Jan 17

12

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