VQB75 [CUI]

DC-DC Converter; DC-DC变换器
VQB75
型号: VQB75
厂家: CUI INC    CUI INC
描述:

DC-DC Converter
DC-DC变换器

文件: 总4页 (文件大小:220K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
VQB75- Single Output Brick DC-DC Converter  
Features  
·50-75W isolated output  
·Efficiency to 90%  
·300KHz switching frequency  
·2:1 input range  
·Regulated outputs  
·Continuous short circuit protection  
·Industry standard half-brick package  
·Open frame type option  
Input  
Input Voltage Range  
24V 18-36V  
48V 36-75V  
Under Voltage Lockout  
24 Vin power up 17V  
power down 15.5V  
48Vin power up 34V  
power down 32.5V  
(see note 4&5)  
Positive Logic Remote ON/OFF  
Input Filter  
PI Type  
Output  
Voltage Accuracy  
±1% max.  
Transient Response: 75%-100% Step Load Change  
Error Band  
±5%  
Recover Time  
<500us  
External Trim Adj. Range  
±10%  
Ripple & Noise  
20MHz BW, 2.5V, 3.3V, 5V  
40mV RMS., max  
100mV pk-pk., max  
±0.03%/°C  
Temperature Coefficient  
Short Circuit Protection  
Line Regulation1  
Continuous  
±0.2% max  
Load Regulation2  
±0.2% max  
Over Voltage Protection trip Range, % Vo nom.  
Current Limit  
115-140%  
110-140% Nominal Output  
General Specifications  
Efficiency  
see table  
Isolation Voltage  
Input/Output  
Input/Case  
1500VDC min.  
1500VDC min.  
Output/Case  
1500VDC min.  
Isolation Resistance  
Switching Frequency  
107Ohm min.  
300KHz, Type  
Operating Case Temperature  
Storage Temperature  
-40°C to +100°C  
-40°C to +105°C  
100°C Typ.  
Thermal Shutdown, Case Temp.  
Dimensions  
1.45x2.28x0.50 inches  
(36.8x57.9x12.7mm)  
aluminum baseplate with plastic case  
Case Material  
V-Infinity, LLC, 9615 SW Allen Blvd Suite 103, Beaverton, OR 97005  
www.v-infinity.com  
1-866-372-1258  
VQB75- Single Output Brick DC-DC Converter  
NOTES:  
1. Measured from high line to low line  
2. Measured from full load to zero load  
3. Logic compatibility...open collector ref to -input  
Module ON...open circuit  
Module OFF...<0.8Vdc  
4. Suffix “O” to the model number with open frame type  
Model  
Input  
Output  
Voltage  
1.8VDC  
2.5VDC  
3.3VDC  
5VDC  
Output  
Current  
0.5-25A  
0.5-25A  
0.5-20A  
0.5-15A  
0.5-25A  
0.5-25A  
0.5-20A  
I nput Current  
No Load  
Number  
Voltage  
Full Load  
2259mA  
3064mA  
3125mA  
3472mA  
1116mA  
1514mA  
1563mA  
Effic.  
83%  
85%  
88%  
90%  
84%  
86%  
88%  
Case  
QB  
QB  
QB  
QB  
QB  
QB  
QB  
VQB75-D24-S1-R8  
VQB75-D24-S2R5  
VQB75-D24-S3R3  
VQB75-D24-S5  
VQB75-D48-S1R8  
VQB75-D48-S2R5  
VQB75-D48-S3R3  
18-36VDC  
18-36VDC  
18-36VDC  
18-36VDC  
36-75VDC  
36-75VDC  
36-75VDC  
60mA  
60mA  
70mA  
80mA  
50mA  
50mA  
50mA  
1.8VDC  
2.5VDC  
3.3VDC  
Case HB  
Pin Connection  
Pin  
Function  
Vin  
ON/OFF  
Case  
-Vout  
-Sense  
Trim  
1.  
2.  
3.  
4.  
5.  
6.  
7.  
8.  
+Sense  
+Vout  
V-Infinity, LLC, 9615 SW Allen Blvd Suite 103, Beaverton, OR 97005  
www.v-infinity.com  
1-866-372-1258  
VQB75- Single Output Brick DC-DC Converter  
Application Notes  
Derating:  
The operating case temperature range of the VQB75 series is -40°C to +100°C. When operating the VQB75, proper derating or  
cooling is needed. Following is the derating curve of VQB75 without heat sink.  
Where:  
The power dissapation (Pd) is  
Pd= Pi - Po = Po (1-n )/ n  
The thermal resistances are listed below.  
The temperature rise (D T):  
D T = Pd * Rca  
Remote ON/OFF Control  
The VQB75 series allows the user to switch the module on and off electronically with the remote on/off feature. The VQB75  
series is available with “positive logic” or “negative logic” options.  
V-Infinity, LLC, 9615 SW Allen Blvd Suite 103, Beaverton, OR 97005  
www.v-infinity.com  
1-866-372-1258  
VQB75- Single Output Brick DC-DC Converter  
External Output Trimming  
Output may optionally be externally trimmed (±10%) with a fixed resistor or an external trimpot as shown.  
Output Noise  
The output noise is measured with a 10µF tantalum capacitor and a 1.0µF ceramic capacitor across the output.  
V-Infinity, LLC, 9615 SW Allen Blvd Suite 103, Beaverton, OR 97005  
www.v-infinity.com  
1-866-372-1258  

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