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參數(shù)資料
| 型號： | AT1382AF-GRE |
| 廠商： | Aimtron Technology Corp. |
| 元件分類： | DC/DC變換器 |
| 英文描述： | 4-Channel DC-DC Converter for DSC |
| 中文描述： | 4通道的DC - DC轉(zhuǎn)換器的數(shù)碼相機 |
| 文件頁數(shù)： | 12/25頁 |
| 文件大?。?/td> | 633K |
| 代理商： | AT1382AF-GRE |
AT1382A
Preliminary Product Information
4-Channel DC-DC Converter 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
12
2.
Channel control function
The channels are turned on and turned off depending on the voltage levels at the CTL, CTL1,
CTL2, CTL3 and CTL4. Described as follow.
Voltage level at CTL pin
CLT1
CLT2
X
X
Channel on / off state
CH2
OFF (Standby state)
CTL
L
CLT3
X
L
CLT4
X
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
CH1
CH3
CH4
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
L
H
OFF
ON
L
OFF
L
H
H
OFF
ON
ON
L
OFF
L
H
OFF
ON
L
OFF
H
H
H
H
ON
ON
ON
X
：
Undefined
3.
Protective Functions
Short circuit protection and timer latch
The short circuit detection comparator in each channel detects the output voltage level of power
converter. When any channel output voltage falls below the short-circuit detection level, there is a
constant current bias charging the external capacitor C
SCP
which connected to the CSCP pin until
the capacitor voltage level reaches about 0.7V then turn off the output transistor and disable the IC.
It could reset the actuated protection by restart the power source.
Under-voltage lockout protection
The under-voltage lockout protection is to disable the IC while the supply voltage transient state or
momentary decrease, which may cause the IC to malfunction. To prevent such malfunctions, the
under-voltage lockout protection circuit detects a decrease in internal reference voltage with
respect to the power supply voltage, turns off the output transistor, and sets the dead time to 100%
while holding the CSCP pin at the “L” level.
The circuit restores the output transistor to normal when the power source voltage reaches the
threshold voltage of the under-voltage lockout protection circuit.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AT1382AF-PBF | 4-Channel DC-DC Converter for DSC |
| AT1382BF | 4-Channel DC-DC Converter for DSC |
| AT1386 | 6-Channel DC-DC Converter for DSC |
| AT1386F | 6-Channel DC-DC Converter for DSC |
| AT1386F-GRE | 6-Channel DC-DC Converter for DSC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT1382AF-PBF | 制造商:AIMTRON 制造商全稱:AIMTRON 功能描述:4-Channel DC-DC Converter for DSC |
| AT1382B | 制造商:AIMTRON 制造商全稱:AIMTRON 功能描述:4-Channel DC-DC Converter for DSC |
| AT1382BF | 制造商:AIMTRON 制造商全稱:AIMTRON 功能描述:4-Channel DC-DC Converter for DSC |
| AT1386 | 制造商:AIMTRON 制造商全稱:AIMTRON 功能描述:6-Channel DC-DC Converter for DSC |
| AT1386F | 制造商:AIMTRON 制造商全稱:AIMTRON 功能描述:6-Channel DC-DC Converter for DSC |
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