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AEO20B48N-6S 参数 Datasheet PDF下载

AEO20B48N-6S图片预览
型号: AEO20B48N-6S
PDF下载: 下载PDF文件 查看货源
内容描述: AEO / ALO单路输出8砖:底板或开放式框架模块 [AEO/ALO Single Output 8th Brick: Baseplate or Open-Frame Module]
分类和应用:
文件页数/大小: 26 页 / 899 K
品牌: ASTEC [ Astec America, Inc ]
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Technical Reference Notes  
AEO_ALO04/12/20/25x48 Series  
(Single Output 8th Brick)  
Basic Operation and Features (continued)  
OUTPUT ENABLE  
The converter comes with an Enable pin (PIN 2), which is primarily used to turn ON/OFF the converter. Both a Positive (no  
“N” suffix required) and a Negative (suffix “N” required) Enable Logic options are being offered. Please refer to Table 2 for  
the Part Numbering Scheme.  
For Positive Enable, the converter is turned on when the Enable pin is at logic HIGH or left open. The unit turns off when the  
Enable pin is at logic LOW or directly connected to -VIN. On the other hand, the Negative Enable version turns unit on when  
the Enable pin is at logic LOW or directly connected to -VIN. The unit turns off when the Enable pin is at Logic HIGH.  
OUTPUT OVER VOLTAGE PROTECTION (OVP)  
The Over Voltage Protection circuit is non-latching - auto recovery mode. The output of the converter is terminated under an  
OVP fault condition (Vo > OVP threshold). The converter will attempt to restart until the fault is removed. There is a 100ms  
lockout period between restart attempts.  
OVER CURRENT PROTECTION (OCP)  
The Over Current Protection is non-latching - auto recovery mode. The converter shuts down once the output current reaches  
the OCP range. The converter will attempt to restart until the fault is removed. There is a 100ms lockout period between restart  
attempts.  
OVER TEMPERATURE PROTECTION (OTP)  
The Over Temperature Protection circuit will shutdown the converter once the average PCB temperature (See Figure 62B for  
OTP reference sense point) reaches the OTP range. This feature prevents the unit from overheating and consequently going  
into thermal runaway, which may further damage the converter and the end system. Such overheating may be an effect of  
operation outside the given power thermal derating conditions. Restart is possible once the temperature of the sensed location  
drops to less than 110°C.  
REMOTE SENSE  
The remote sense pins can be used to compensate for any voltage drops (per indicated max limits) that may occur along the  
connection between the output pins to the load. Pin 7 (+Sense) and Pin 5 (-Sense) should be connected to Pin 8 (+Vout) and  
Pin 4 (Return) respectively at the point where regulation is desired. The combination of remote sense and trim adjust cannot  
exceed 110% of VO. When output voltage is trimmed up (through remote sensing and/or trim pin), output current must be  
derated and maximum output power must not be exceeded.  
MODEL: AEO_ALO04/12/20/25x48 SERIES  
SHEET 8 OF 26  
AUGUST 25, 2005 - REVISION G  
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