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参数资料
| 型号： | AT1382A |
| 英文描述： | AT1382A - 4-Channel 1.5V Low voltage Step-Up/SEPIC DC/DC Converter |
| 中文描述： | AT1382A - 4通道1.5V的低电压Step-Up/SEPIC直流/直流转换器 |
| 文件页数： | 8/25页 |
| 文件大小： | 634K |
| 代理商： | AT1382A |
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
16
7. Setting time constant for Time-latch Short-circuit protection
The SCP comparator detects each channel output voltage while the power converter work at
normal condition. Q1 is turn on, and the voltage level of CSCP pin is held at low level. If the load
of one channel rapidly due to a short of the load, causing the output voltage to drop, the SCP
comparator output on that channel goes to "H" level. The transistor Q1 to be turned off and the
external capacitor C
SCP to be charged at 1.0μA. The time period of short circuit protection as show
below equation.
t
PE(s): Short detection time
t
PE (s) = 0.7 * CSCP (μF)
When the C
SCP is charged to the 0.7V, the timer-latch is set and output is turn off (dead time is set to 100
﹪
). At this point, the timer-latch is closed and the CSCP terminal is held at "L" level. It could be
disabled short circuit protection function by connecting CSCP pin into the ground.
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相关代理商/技术参数 |
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| AT1382AF | 制造商:AIMTRON 制造商全称:AIMTRON 功能描述:4-Channel DC-DC Converter for DSC |
| AT1382AF-GRE | 制造商:AIMTRON 制造商全称:AIMTRON 功能描述:4-Channel DC-DC Converter for DSC |
| AT1382AF-PBF | 制造商:AIMTRON 制造商全称:AIMTRON 功能描述:4-Channel DC-DC Converter for DSC |
| AT1382B | 制造商:AIMTRON 制造商全称:AIMTRON 功能描述:4-Channel DC-DC Converter for DSC |
| AT1382BF | 制造商:AIMTRON 制造商全称:AIMTRON 功能描述:4-Channel DC-DC Converter for DSC |
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