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MHV28515TF/883 PDF预览

MHV28515TF/883

更新时间: 2024-02-08 17:20:51
品牌 Logo 应用领域
CRANE 转换器输入元件
页数 文件大小 规格书
14页 240K
描述
DC/DC CONVERTERS 28 VOLT INPUT

MHV28515TF/883 技术参数

生命周期:Contact Manufacturer包装说明:,
Reach Compliance Code:compliant风险等级:5.74
模拟集成电路 - 其他类型:DC-DC REGULATED POWER SUPPLY MODULEBase Number Matches:1

MHV28515TF/883 数据手册

 浏览型号MHV28515TF/883的Datasheet PDF文件第2页浏览型号MHV28515TF/883的Datasheet PDF文件第3页浏览型号MHV28515TF/883的Datasheet PDF文件第4页浏览型号MHV28515TF/883的Datasheet PDF文件第5页浏览型号MHV28515TF/883的Datasheet PDF文件第6页浏览型号MHV28515TF/883的Datasheet PDF文件第7页 
FEATURES  
• –55° to +125°C operation  
• 16 to 50 VDC input  
• Fully Isolated  
• Optocoupler feedback  
• Fixed switching frequency  
600 kHz typical,  
MHV SERIES  
15 WATT  
DC/DC CONVERTERS  
28 VOLT NPUT  
I
MODELS  
VDC OUTPUT  
SINGLE  
3.3  
5
DUAL  
5
12  
TRIPLE  
+5 & 12  
+5 & 15  
Topology –  
Dual Single Ended Flybacks  
• 80 V / 120 ms transient protection  
(12 Vout single and dual to 75 V,  
15 Vout single and dual to 60V)  
• Inhibit and sync functions  
• Trim on single output models  
• Up to 84% efficiency  
• Low output noise  
12  
15  
15  
Size (max.): Non flanged Single and dual output models, case H2, 2.125 x 1.125 x 0.400 inches (53.98 x 28.58 x 10.16 mm)  
Triple output models, case F1, 1.950 x 1.350 x 0.405 inches (49.53 x 34.29 x 10.29 mm)  
Flanged Single and dual output models, case K3, 2.910 x 1.125 x 0.400 inches (73.91 x 28.58 x 10.16 mm)  
Triple output models, case J1, 2.720 x 1.350 x 0.405 inches (69.09 x 34.29 x 10.29 mm)  
See Section B8, cases H2, F1, K3, and J1 for dimensions.  
Weight:  
60 grams maximum.  
Screening: Standard, ES, or 883 (Class H). See Section C2 for  
screening options, see Section A5 for ordering information.  
DESCRIPTION  
When a low (0.8 V) is applied to the inhibit terminal the converter  
shuts down, typically drawing 8.4 mA of input current. Inhibit  
terminal resistance is 3.3 k ohms and draws 8.4 mA, typical.  
Interpoint’s MHV Series™ of DC/DC converters offer a wide input  
voltage range of 16 to 50 VDC and a choice of nine different output  
voltage configurations comprised of single, dual or triple outputs.  
The converters will withstand transients of up to 80 V for up to 120  
milliseconds while maintaining output voltages (with the exception of  
the 12 volt single and dual outputs which will withstand transients up  
to 75 volts and the 15 volt single and dual outputs which will with-  
stand up to 60 volts). The MHV Series operates at a full 15 watts of  
output power (10 watts for the 3.3 volt single output) over the mili-  
tary temperature range of –55°C to +125°C while maintaining low  
input and output noise.  
SYNCHRONIZATION FUNCTION  
Applying an external signal of 40% to 60% duty cycle and 500 to  
700 kHz will synchronize the converter to your system requirements.  
Free run clock frequency is approximately 600 kHz. If not used, the  
sync terminal must be left unconnected.  
TRIM  
Single output converters feature a trim range of as low as 80% to  
as high as 110% of Vout nominal, depending on the model. To trim  
up, connect a resistor from output common (pin 4) to the trim  
terminal (pin 3). To trim down, connect a resistor from the positive  
output (pin 5) to the trim terminal (pin 3). See Figure 4 and trim  
tables for more information.  
CONVERTER DESIGN  
MHV Series DC/DC converters are switching regulators that use  
continuous flyback conversion topology with a clock frequency of  
approximately 600 kHz. MHV Series converters incorporate two  
internal converters with one converter phase shifted 180° from the  
other to create a dual phase/phase-shifted operation. Each of the  
internal converters operates at approximately one-half of the clock  
frequency. This proprietary technology eliminates cross regulation,  
minimizes input ripple, greatly reduces output ripple and improves  
efficiency. On the triple output models, this design provides  
completely independent regulation with no cross regulation effect  
between the main and auxiliary outputs and no minimum loading  
required on the main output.  
UNDERVOLTAGE LOCKOUT  
An undervoltage lockout of approximately 7 VDC keeps system  
current levels low during startup.  
SHORT CIRCUIT PROTECTION  
Under short circuit conditions of 130% or more of full load current,  
the converter will protect itself by shutting down. Short circuit dura-  
tion should be brief because power dissipation may cause internal  
temperatures to rise rapidly. Restart is automatic upon removal of  
the short circuit.  
INHIBIT FUNCTION  
Open collector TTL levels control the inhibit circuit. The converter is  
enabled when the inhibit terminal is left unconnected or when the  
inhibit terminal is connected to a voltage between 11.5 and 50 V.  
1

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