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參數(shù)資料
| 型號： | HD66115T |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 160-Channel Common Driver Packaged in a Slim Tape Carrier Package(點陣圖形LCD160通道驅(qū)動器) |
| 中文描述： | 160頻道共同驅(qū)動器封裝在一個超薄磁帶載體封裝（點陣圖形LCD160通道驅(qū)動器） |
| 文件頁數(shù)： | 20/21頁 |
| 文件大小： | 68K |
| 代理商： | HD66115T |
HD66115T
20
LCD Driver LSI Power Supply Pin Connection
A feature of the LCD driver is the LCD drive power supply. As the number of pixel drives per LSI
increases, so does the voltage and number of outputs.
Consequently, if multi-output CMOS circuits are switched simultaneously, a wiring voltage drop may
occurs due to transient currents, and the potential between the LCD drive circuit power supply (V
CD
) and
LCD drive level power supplies (V1, V6, and V3) or GND and the LCD level power supplies (V2, V5, and
V4) may be inverted, resulting in latchup breakdown. To prevent this, it is recommended that, when
designing the LCD drive power supply and board power supply wiring, the power supply wiring be
designed as low-impedance and capacitors be inserted in the wiring between V
CD
and V1, V3, V6, and
between V2, V4, V5 and GND. In set evaluation, it is recommended that a check be carried out to confirm
that there is no inversion of the LCD drive power supply and level power supplies in the period between
when the LCD drive power supply is turned on and turned off.
Example of capacitor insertion (when V
LCD
= V1 and GND = V2)
+
–
+
–
+
–
+
–
+
–
+
–
V
LCD
, V1 pins
(COM, SEG)
GND, V2 pins
(COM, SEG)
V6 pin (COM)
V5 pin (COM)
V3 pin (SEG)
Electrolytic capacitor
Ceramic capacitor
V4 pin (SEG)
Figure 14 Example of Capacitor Insertion
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD66115TA1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66120T | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66120TA5 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66130 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:320-channel Low-voltage Segment Driver for Dot-Matrix STN Liquid Crystal Display |
| HD66130T | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:320-channel Low-voltage Segment Driver for Dot-Matrix STN Liquid Crystal Display |
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