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VTM48EX120Y025A0R

更新时间： 2024-11-06 01:21:11
品牌 Logo 应用领域
VICOR /
页数 文件大小 规格书
19页 2636K
描述
High Efficiency, Bi-directional, Sine Amplitude Converter

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中文翻译

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VTM48EX120Y025A0R 数据手册

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VTM Current Multiplier  
x
VTM48E 120y025A0R  
S
C
NRTL US  
High Efficiency, Bi-directional, Sine Amplitude Converter™  
FEATURES  
DESCRIPTION  
The VI Chip® bi-directional current multiplier is a Sine Amplitude  
• 48 Vdc to 12 Vdc 25 A bi-directional current multiplier  
Converter™ (SAC™) operating from a 26 to 55 Vdc primary  
source or a 6.5 to 13.8 Vdc secondary source to power a load.  
The bi-directional Sine Amplitude Converter isolates and  
transforms voltage at a secondary:primary ratio of 1/4. The SAC  
offers a low AC impedance beyond the bandwidth of most  
downstream regulators; therefore for a step-down conversion;  
capacitance normally at the load can be located at the source to  
the Sine Amplitude Converter to enable a reduction in size of  
capacitors. Since the K factor of the VTM48EF120T025A0R is  
1/4, the capacitance value on the primary side can be reduced  
by a factor of 16 in an application where the source is located  
on the primary side, resulting in savings of board area, materials  
and total system cost.  
• Can power a load connected to either the primary or  
secondary side  
• High efficiency (>96%) reduces system power  
consumption  
• High density (85 A/in3)  
• “Full Chip” VI Chip® package enables surface mount,  
low impedance interconnect to system board  
• Contains built-in protection features against:  
- Overvoltage Lockout  
- Overcurrent  
- Short Circuit  
- Overtemperature  
The VTM48EF120T025A0R is provided in a VI Chip package  
compatible with standard pick-and-place and surface mount  
assembly processes. The co-molded VI Chip package provides  
enhanced thermal management due to a large thermal  
interface area and superior thermal conductivity. The high  
conversion efficiency of the VTM48EF120T025A0R increases  
overall system efficiency and lowers operating costs compared  
to conventional approaches.  
• Provides enable/disable control,  
internal temperature monitoring  
• ZVS/ZCS resonant Sine Amplitude Converter topology  
• Less than 50ºC temperature rise at full load  
in typical applications  
The VTM48EF120T025A0R enables the utilization of Factorized  
Power Architecture™ which provides efficiency and size  
benefits by lowering conversion and distribution losses and  
promoting high density point of load conversion.  
TYPICAL APPLICATIONS  
• High End Computing Systems  
• Automated Test Equipment  
• High Density Power Supplies  
• Communications Systems  
VPRI = 26 to 55 V  
ISEC = 25 A (NOM)  
VSEC = 6.5 to 13.8 V (NO LOAD)  
K = 1/4  
PART NUMBERING  
TYPICAL APPLICATION  
PART NUMBER  
PACKAGE STYLE  
PRODUCT GRADE  
T = -40 to 125°C  
M = -55 to 125°C  
F = J-Lead  
y
VTM48E x 120 025  
A0R  
+IN  
+OUT  
Enable  
T = Through hole  
PRM A  
For Storage and Operating Temperatures see Section 6.0 General Characteristics  
-IN  
-OUT  
+PRI  
-PRI  
+SEC  
-SEC  
VTM®  
Battery  
+IN  
+OUT  
-OUT  
Enable  
PRM B  
-IN  
VTM® Current Multiplier  
Page 1 of 19  
Rev 1.2  
vicorpower.com  
800 927.9474  
07/2015  
1234567...19

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