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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： | 4/25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
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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
Channel on / off state
CTL
CLT1
CLT2
CLT3
CLT4
CH1
CH2
CH3
CH4
L
X
OFF (Standby state)
LOFF
L
H
OFF
ON
LOFF
L
H
OFF
ON
LOFF
L
H
OFF
ON
LOFF
L
H
OFF
ON
LOFF
L
H
OFF
ON
LOFF
L
H
OFF
ON
LOFF
L
H
OFF
ON
LOFF
H
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.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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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