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ML9058E Datasheet(PDF) 30 Page - LAPIS Semiconductor Co., Ltd. |
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ML9058E Datasheet(HTML) 30 Page - LAPIS Semiconductor Co., Ltd. |
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30 / 76 page  FEDL9058E-01 LAPIS Semiconductor ML9058E 30/76 Power Supply Circuit This is the low power consumption type power supply circuit for generating the voltages necessary for driving LCD devices, and consists of voltage multiplier circuits, voltage adjustment circuits, and voltage follower circuits. In the power supply circuit, it is possible to control the ON/OFF of each of the circuits of the voltage multiplier, voltage adjustment circuits, and voltage follower circuits using the power control set command. As a result, it is also possible to use parts of the functions of both the external power supply and the internal power supply. Table 8 shows the functions controlled by the 3-bit data of the power control set command and Table 9 shows a sample combination. Table 8 Details of functions controlled by the bits of the power control set command Control bit Function controlled by the bit DB2 Voltage multiplier circuit control bit DB1 Voltage adjustment circuit (V1 voltage adjustment circuit) control bit DB0 Voltage follower circuit (V/F circuit) control bit Table 9 Sample combination for reference Circuit State used DB2 DB1 DB0 Voltage multiplier V Adjustment V/F External voltage input Voltage multiplier pins *1 Only the internal power supply is used 1 1 1 VIN Used Only V adjustment and V/F circuits are used 0 1 1 VOUT OPEN Only V/F circuits are used 0 0 1 V1 OPEN Only the external power supply is used 0 0 0 V1 to V5 OPEN *1: The voltage multiplier pins are the pins VS1–, VS2–, VC3+, VC4+, VC5+, and VC6+. If combinations other than the above are used, normal operation is not guaranteed. |
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