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參數(shù)資料
| 型號： | AT1388A |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 6-Channel DC-DC Controller for DSC |
| 中文描述： | 6聲道的DC - DC控制器的數(shù)碼相機 |
| 文件頁數(shù)： | 19/24頁 |
| 文件大小： | 637K |
| 代理商： | AT1388A |
AT1388/AT1388A
Preliminary Product Information
6-Channel DC-DC Controller for DSC
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878 WWW:
http://www.aimtron.com.tw
Fax: 886-3-563-0879 Email:
service@aimtron.com.tw
19
＊
Soft start setting (CH1~6)
Consider the input voltage and load current to design the capacitor connected to
the SS pin.
It can calculate the CH1~6 soft start time Ts(s)(valid threshold 0.3~0.8V interval).
Note : It could be disabled soft start function by floating SS pin.
Determine the triangular Oscillator Frequency
The triangular oscillator frequency is determined by the timing capacitor (C
T
). It is
difficult to incorporate these non-linear characteristics into the equation. This
difference is caused by characteristics, such as changes in the maximum voltage
amplitude of the sawtooth waveform with the CT value and the circuit delay causing
the maximum amplitude to become large in the case of a high oscillating frequency
even for the same capacitor. In practical use, therefore, the user should read the CT
values from the characteristic curve or should determine an approximate target value
by using the equation.
I
t
V
C
=
×
)
(
5
)
(
F
C
s
Ts
μ
×
=
)
(
41000
C
T
)
(
pF
KHz
f
OSC
=
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