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PCA2117DUGS/DA Folha de dados(PDF) 39 Page - NXP Semiconductors |
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PCA2117DUGS/DA Folha de dados(HTML) 39 Page - NXP Semiconductors |
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39 / 107 page  PCA2117 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved. Product data sheet Rev. 4 — 8 April 2015 39 of 107 NXP Semiconductors PCA2117 Automotive LCD driver for character displays Remarks: 1. VLCDx[8:0] has to be set to such a value that the resultant VLCD, including the temperature compensation, is higher than VDD2. 2. The programmable range of VLCDx[8:0] is from 0h to 1FFh. It would allow achieving a VLCD of higher voltages but the PCA2117 has a built-in automatic limitation set to 16 V. 8.4.4 VLCD drive capability Figure 20 to Figure 22 illustrate the drive capability of the internal charge pump for various conditions. VLCD is internally limited to 16 V. (1) VLCDx[8:0] must be set such that VLCD > VDD2. (2) Automatic limitation for VLCD > 16 V. Fig 19. VLCD programming of PCA2117 (assuming VT[8:0] = 0h) |
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