參數(shù)資料
型號(hào)： HD66300T
廠商： Hitachi,Ltd.
英文描述： Horizontal Driver for TFT-Type LCD Color TV(TFT型LCD彩色電視機(jī)水平驅(qū)動(dòng)器)
中文描述： 水平驅(qū)動(dòng)的TFT型液晶彩色電視（的TFT型液晶彩色電視機(jī)水平驅(qū)動(dòng)器）
文件頁數(shù)： 31/64頁
文件大小： 702K
代理商： HD66300T
HD66300T
1482
Bias Voltage
Voltages VbsB , VbsH, and Vbo control the drive capability of the output buffer and differential
amplifier. Here the LSI must be used in the range of
V
CC
– 4.0V
≤
VbsB , VbsH , Vbo
≤
V
CC
– 2.0V
VbsB controls the drive current capability of the output buffer when OE is high (IV
sB
) and VbsH controls
the leakage correction current of when OE is low (IV
sH
). Figure 17 and Figure 18 show the relationship
between IV
sB
and VbsB and the relationship between IV
sH
and VbsH, respectively.
VbsB and VbsH should be to an appropriate level for the electrical characteristics of the LCD panel used.
The rise time (t
DDR
) and the fall time (t
DDF
) of the output buffer depend on the input level of VbsB.
Figure 19 shows the relationship between t
DDR
, t
DDF
and VbsB.
Vbo controls the bias current of the differential amplifier (IV
bo
).
Figure 20 shows the relationship between the rise and fall times (t
DDR
, t
DDF
) of the output buffer and Vbo.
Vbo should be adjusted to an appropriate level for the electrical characteristics of the LCD panel used.
The increase of total current consumption is 120 times larger than that of IV
bsB
, IV
bsH
and IV
bo
, because
Figure 17, 18 and 21 each shows the case of one output and HD66300T has 120 outputs.
Figure 17, 18, 19, 20 and 21 are just for reference and do not guarantee the characteristics.
200
400
600
800
1,000
IVbSB
(
μ
A)
V
CC
–VbSB (V)
1
2
3
4
5
Figure 17 IVbsB vs V
CC
–VbsB
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