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JRCK017A0S32R06435Z 参数 Datasheet PDF下载

JRCK017A0S32R06435Z图片预览
型号: JRCK017A0S32R06435Z
PDF下载: 下载PDF文件 查看货源
内容描述: [36–62 Vdc Input; 32Vdc Output; 17Adc Output]
分类和应用:
文件页数/大小: 15 页 / 1165 K
品牌: LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
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Data Sheet  
GE  
JRCK017A0S32R0 Orca Series; DC-DC Converter Power Modules  
36–62 Vdc Input; 32.0Vdc Output; 17.0Adc Output  
Feature Description (continued)  
control loop of the module, typically causing the loop to slow  
down with sluggish response. Larger values of external  
capacitance could also cause the module to become  
unstable.  
Thermal Considerations  
The power modules operate in a variety of thermal  
environments; however, sufficient cooling should be provided  
to help ensure reliable operation.  
Considerations include ambient temperature, airflow, module  
power dissipation and the need for increased reliability. A  
reduction in the operating temperature of the module will  
result in an increase in reliability.  
The Tunable LoopTM allows the user to externally adjust the  
voltage control loop to match the filter network connected to  
the output of the module. The Tunable LoopTM is implemented  
by connecting a series R-C between the SENSE(+) and TRIM  
pins of the module, as shown in Fig. 17. This R-C allows the  
user to externally adjust the voltage loop feedback  
compensation of the module.  
The thermal data presented here is based on physical  
measurements taken in a wind tunnel, using automated  
thermo-couple instrumentation to monitor key component  
temperatures: FETs, diodes, control ICs, magnetic cores,  
ceramic capacitors, opto-isolators, and module pwb  
conductors, while controlling the ambient airflow rate and  
temperature. For a given airflow and ambient temperature,  
the module output power is increased, until one (or more) of  
the components reaches its maximum derated operating  
temperature, as defined in IPC-9592. This procedure is then  
repeated for a different airflow or ambient temperature until a  
family of module output derating curves is obtained.  
Figure 17. Circuit diagram showing connection of RTUNE and  
CTUNE to tune the control loop of the module.  
Table 1 shows the recommended values of RTUNE and CTUNE for  
different values of ceramic output capacitors up to 8000 F  
that might be needed for an  
application to meet output ripple and noise requirements.  
Table 1. General recommended values of of RTUNE and CTUNE  
for Vout=32V and various external ceramic capacitor  
combinations.  
Cout(µF)  
ESR (m)  
RTUNE  
1100  
2200  
4400  
6600  
8800  
60  
*
30  
*
15  
*
10  
*
7.5  
*
CTUNE  
*
*
*
*
*
Heat-dissipating components inside the unit are thermally  
coupled to the case. Heat is removed by conduction,  
convection, and radiation to the surrounding environment.  
Proper cooling can be verified by measuring the case  
temperature. Peak temperature locations (Tref) occur at the  
positions indicated in Figure 18.  
* contact GE technical support  
Please contact your GE technical representative to obtain  
more details of this feature as well as for guidelines on how to  
select the right value of external R-C to tune the module for  
best transient performance and stable operation for other  
output capacitance values.  
For reliable operation, these temperatures should not  
exceed the values listed below for applications using forced  
convection airflow or coldwall applications.  
Over Temperature Protection  
The JRCK017S32R0 module provides a non-latching over  
temperature protection. A temperature sensor monitors the  
operating temperature of the converter. If the reference  
temperature, TREF 1, (see Figure 17) exceeds a threshold of 115  
ºC (typical), the converter will shut down and disable the  
output. When the base plate temperature has decreased by  
approximately 20 ºC the converter will automatically restart.  
Application  
Coldwall  
Tref1  
99  
Tref2  
100  
Heatplate only, or w/Heatsink  
95  
100  
The output power of the module should not exceed the rated  
power for the module as listed in the ordering Information  
table. Although the maximum TREF temperature of the power  
modules is discussed above, you can limit this temperature to  
a lower value for extremely high reliability.  
The module can be restarted by cycling the dc input power for  
at least one second or by toggling the remote on/off signal for  
at least one second.  
October 11, 2013  
©2012 General Electric Company. All rights reserved.  
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