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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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STVM100 Arkusz danych(PDF) 1 Page - STMicroelectronics |
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STVM100 Arkusz danych(HTML) 1 Page - STMicroelectronics |
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1 / 27 page  July 2007 Rev 6 1/27 1 STVM100 I2C LCD VCOM calibrator Features ■ I2C interface, slave address: 1001111 ■ 7-bit adjustable sink current output ■ 2.25V to 3.6V logic supply voltage VDD ■ AVDD operating voltages – 4.5V to 20V for VDD from 2.6V to 3.6V – 4.5V to 13V for VDD from 2.25V to 3.6V ■ EEPROM for storing the optimum VCOM setting ■ Guaranteed monotonic output over operating range ■ 400kHz maximum interface bus speed ■ Operating temperature: –40°C to 85°C ■ Available in an 8-pin 3mm x 3mm TDFN8 or 3mm x 3mm TSSOP8 Package Applications ■ TFT-LCD panels Description The STVM100 is a programmable VCOM adjust- ment solution for thin-film transistor (TFT) liquid- crystal displays (LCDs) to remove “flickers”. It can replace a mechanical potentiometer, so that the factory operator can physically view the front screen when performing the VCOM adjustment. This significantly reduces labor costs, increases reliability, and enables automation. STVM100 provides a digital I2C interface to con- trol the sink current output (IOUT). This output drives an external resistive voltage divider, which can then be applied to an external VCOM buffer. Three external resistors R1, R2, and RSET deter- mine the highest and lowest value of the VCOM. An increase in the output sink current will lower the voltage on the external divider so that the VCOM can be adjusted by 128 steps within this range. Once the desired VCOM setting is achieved, it can be stored in the internal EEPROM that will be automatically recalled dur- ing each power-up. STVM100 is available in an 8-pin, 3mm x 3mm TDFN8 or 3mm x 3mm TSSOP8 package. TDFN8 (3mm x 3mm) (DC) TSSOP8 (3mm x 3mm) (DS) Table 1. Device summary Order code Optimum temperature range Package Packing STVM100DC6E -40°C to 85°C TDFN ECOPACK package, tubes STVM100DS6F -40°C to 85°C TSSOP ECOPACK package, tape and reel www.st.com |
Podobny numer części - STVM100 |
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Podobny opis - STVM100 |
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