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HR121-2812 PDF预览

HR121-2812

更新时间: 2024-11-05 04:22:07
品牌 Logo 应用领域
CRANE 转换器输入元件
页数 文件大小 规格书
6页 91K
描述
DC/DC CONVERTERS 28 VOLT INPUT

HR121-2812 技术参数

生命周期:Not Recommended包装说明:DIP, DIP8/10,.8,300/200
Reach Compliance Code:compliantECCN代码:EAR99
风险等级:5.57Is Samacsys:N
模拟集成电路 - 其他类型:DC-DC REGULATED POWER SUPPLY MODULE效率(主输出):81%
最大输入电压:40 V最小输入电压:16 V
标称输入电压:28 VJESD-30 代码:R-MDMA-P8
JESD-609代码:e3最大电网调整率:0.208%
最大负载调整率:0.416%功能数量:1
输出次数:1端子数量:8
最高工作温度:85 °C最低工作温度:-40 °C
最大输出电流:1 A最大输出电压:12.12 V
最小输出电压:11.88 V标称输出电压:12 V
封装主体材料:METAL封装代码:DIP
封装等效代码:DIP8/10,.8,300/200封装形状:RECTANGULAR
封装形式:MICROELECTRONIC ASSEMBLY保护:CURRENT
认证状态:Not Qualified子类别:Other Analog ICs
表面贴装:NO技术:HYBRID
温度等级:INDUSTRIAL端子面层:TIN
端子形式:PIN/PEG端子节距:5.08 mm
端子位置:DUAL最大总功率输出:12 W
微调/可调输出:NOBase Number Matches:1

HR121-2812 数据手册

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FEATURES  
• –40°C to +85°C operation  
HR120 SERIES  
12 WATT  
DC/DC CONVERTERS  
28 VOLT NPUT  
• 16 to 40 VDC input  
(19 to 40 VDC input for  
15 volt output models)  
• Fully Isolated  
I
MODELS  
VDC OUTPUT  
• Optocoupler feedback  
• 600 kHz typical operating frequency  
Topology – Single Ended Forward  
• 50 V for up to 50 ms transient protection  
• Inhibit function  
SINGLE  
DUAL  
±12  
5
12  
15  
±15  
• Indefinite short circuit protection  
• Up to 83% efficiency  
Size (max.): 1.460 x 1.130 x 0.330 inches (37.08 x 28.70 x 8.38 mm)  
See Section B8, case E1 for dimensions.  
Weight:  
21 grams typical.  
Screening: Standard only. See Section C2 for screening description.  
DESCRIPTION  
The HR120 Series™ of DC/DC converters offers up to 12 watts of  
power from single or dual outputs in a single package over a –40°C  
to +85°C temperature range. Thick film hybrid manufacturing tech-  
nology produces high levels of miniaturization, giving the HR120  
Series converters a low profile (0.330 inch), small board area (1.65  
Indefinite short circuit protection and overload protection are  
provided by sensing output load current and restricting the output  
current to approximately 125% of full load output current. Since the  
output current is sensed in the secondary stage, the result is a  
predictable, constant output current control with no foldback char-  
acteristics. HR120 converters are provided with internal filtering  
elements on both the input and output to help reduce the need for  
external components.  
3
square inches), and high power density (22 watt/in ).  
The parts are packaged in sealed steel enclosures, making them  
ideal for use in high reliability applications. Each unit is guaranteed  
to pass a hermeticity test with a maximum leak rate of 0.001 atm-  
cc/sec.  
WIDE VOLTAGE RANGE  
The 5 and 12 volt output models provide full power operation over  
the input voltage range of 16 to 40 volts (19 to 40 volts for 15 volt  
output models). Operation below 16 volts (or below 19 volts for the  
15 volt output models), including operation in MIL-STD-704E emer-  
gency power conditions, is possible with derated output power.  
Please refer to the low voltage drop-out graphs, Figures 9 and 10.  
DESIGN METHODOLOGY  
The HR120 converters are switching regulators which use a quasi-  
square wave, single ended forward converter design with a nominal  
switching frequency of 600 kHz. Isolation between input and output  
circuits is provided with a transformer in the forward power loop and  
a temperature insensitive optical link in the feedback control loop.  
Output regulation is accomplished with constant frequency pulse  
width modulation. Both line and load regulation are typically within  
10 mV.  
The HR120 Series provides full power operation at case tempera-  
tures from –40°C up to +85°C. Depending on operating levels, air  
flow, and ambient temperature, heat sinking may be required.  
INHIBIT FEATURE  
On dual output models, the positive output is independently regu-  
lated and the negative output is cross-regulated. Figures 7 and 8  
illustrate what effects load changes have on the negative output.  
An inhibit terminal is provided that can be used to disable internal  
switching, resulting in a very low quiescent input current. An open  
collector TTL compatible low (0.8 V) is required to control the  
inhibit function. This level may be supplied by an open collector gate  
since the inhibit pin is provided with an internal pull-up resistor.  
B4-47  

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