PCA2117DUGSSLASHDA datasheet(43/107 Pages) NXP

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PCA2117

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Product data sheet

Rev. 4 — 8 April 2015

43 of 107

NXP Semiconductors

PCA2117

Automotive LCD driver for character displays

The temperature coefficients can be selected from a choice of eight different slopes. Each

one of theses coefficients is independently selected via the TC_slope command (see

Section 8.1.4.2 on page 26).

[1]

The relationship between the temperature coefficients TSA to TSD and the slope factor is derived from

Equation 5. where LSB of VLCDx[8:0]

 30 mV.

[2]

Default value.

(5)

The value of the temperature compensated factor VT[8:0] is calculated according to

Table 36.

Fig 25. Example of segmented temperature coefficients

Table 35.

Temperature coefficients

TSA[2:0] to TSD[2:0] value

Slope factor (mV/

C)

Temperature factor

TSA to TSD[1]

000[2]

00.000

001

6

0.125

010

12

0.250

011

24

0.500

100

60

1.250

101

+0.125

110

+12

+0.250

111

+24

+0.500

TSn

0.6275

C



30 (mV)

----------------------------

slope factor (mV/

C 



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