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UHP28_2_12A

更新时间： 2024-09-25 05:53:35
品牌 Logo 应用领域
村田 - MURATA 转换器
页数 文件大小 规格书
9页 260K
描述
Isolated, 12 Amp Half Brick, 48VIN/28.2VOUT DC/DC Converters

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UHP28_2_12A 数据手册

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UHP-28.2/12-D48  
Isolated, 12 Amp Half Brick, 48VIN/28.2VOUT DC/DC Converters  
ORDERING GUIDE SUMMARY  
Model  
VOUT Range  
28.2V  
IOUT Range  
VIN Range  
Ripple/Noise  
Efficiency  
UHP-28.2/12-D48  
0-12A  
36-75V  
100mVp-p  
91.5%  
INPUT CHARACTERISTICS  
Parameter  
Typ. @ 25°C, full load  
36-75 Volts  
5.77 Amps  
32 Volts  
Notes  
Voltage Range  
48V nominal  
VIN = 48V  
Current, full power  
Undervoltage Shutdown  
Short Circuit Current  
Remote On/Off Control  
200mA  
VIN = 48V  
Typical unit  
0 to +VIN  
Positive or negative logic  
FEATURES  
OUTPUT CHARACTERISTICS  
Parameter  
Typ. @ 25°C, full load  
28.2 Volts 10%  
0 to 12 Amps  
342 Watts max.  
1.25%  
Notes  
N
N
N
N
N
N
N
N
N
N
N
Wide 36-75V input range  
Voltage  
Trim range shown  
No minimum load  
28.2V output @ 12 Amps. max.  
Current  
Very high efficiency of 91.5%  
Power Output  
Max. baseplate @ 342W = 80°C  
Operates to +110°C baseplate w/derating  
Conduction-cooled baseplate, no fans  
Industry-standard mounting and pinout  
Remote sense, trim and On/Off control  
Isolated to 2250Vdc (Basic insulation)  
Multiple I/O protection features  
Accuracy  
Ripple & Noise  
100mVp-p  
20MHz bandwidth  
Line and Load Regulation  
Overcurrent Protection  
Overtemperature Protection  
Efficiency (minimum)  
Efficiency (typical)  
0.05%/ 0.1%  
30 Amps  
With hiccup auto-restart  
+125°C  
89.5%  
91.5%  
UL/EN60950-1 safety approvals, CE mark  
ETSI 300-019-2-4 surge, shock/vibration  
GENERAL SPECIFICATIONS  
Parameter  
Typ. @ 25°C, full load  
100μsec  
Notes  
Dynamic Load Response  
Operating Temperature Range  
Operating Temperature Range  
Safety  
50-75-50% step to 1 of final value  
With baseplate, see derating curve  
Without baseplate  
DESCRIPTION  
–40 to +110°C  
–40 to +32°C  
The UHP-28.2/12-D48 is especially designed for  
unattended cellular and PCS base stations, remote  
wide band RF amplifiers and wireless communi-  
cation facilities. To avoid unreliable system fans,  
the UHP-28.2/12-D48 can be operated using con-  
duction cooling while attached to a housing wall  
or system heat sink. No forced airflow is needed  
up to +110°C baseplate temperature.  
UL/IEC/EN 60950-1  
And CSA C22.2-No.234  
MECHANICAL CHARACTERISTICS  
With baseplate  
2.30 x 2.40 x 0.502 inches (58.4 x 61.0 x 12.8 mm)  
2.30 x 2.40 x 0.452 inches (58.4 x 61.0 x 11.5 mm)  
Without baseplate  
The UHP-28.2/12-D48's MTBF is 3 million hours  
(+40°C GF) and ruggedization conforms to  
ETSI 300-019-2-4. Multiple protection features  
avoid damage to outside equipment and to the  
converter itself. The converter will shut down on  
sustained input undervoltage, output overcurrent,  
output short circuit and overvoltage and thermal  
shutdown. Overload currents less than a short  
circuit limit the output current so that operation  
is not interrupted. Upon short circuit shutdown,  
the converter will automatically attempt to restart  
(“hiccup” mode) when the overload is removed.  
The input will tolerate up to 100V overvoltage  
spikes (100msec).  
The UHP-28.2/12-D48 uses industry-standard  
half-brick external outline dimensions, pinout and  
mechanical mounting. The overall unit is designed  
to be as “lead-free” as practical in construction  
and method of attachment (no lead added in  
assembly).  
www.murata-ps.com  
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000  
UHP_28.2/12_D48.B02 Page 1 of 9  
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