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PDF VIB0101THJ Data sheet ( Hoja de datos )
| Número de pieza | VIB0101THJ | |
| Descripción | Bus Converter | |
| Fabricantes | VICOR Corporation | |
| Logotipo |  |
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BCMTM
Bus Converter
VIB0101THJ
S
C NRTL US
FEATURES
• 48 Vdc – 12 Vdc 120 W Bus Converter
• High efficiency (>95%) reduces system power
consumption
• High power density (801 W/in3) reduces power system
footprint by >50%
• “Half Chip” V•I Chip package enables surface mount,
low impedance interconnect to system board
• Contains built-in protection features: undervoltage,
overvoltage lockout, over current protection, short
circuit protection, overtemperature protection.
• Provides enable/disable control, internal temperature
monitoring
• ZVS/ZCS Resonant Sine Amplitude Converter topology
• Less than 50°C temperature rise at full load in typical
applications
TYPICAL APPLICATION
• High End Computing Systems
• Automated Test Equipment
• Telecom Base Stations
• High Density Power Supplies
• Communication Systems
TYPICAL APPLICATION
DESCRIPTION
The V•I ChipTM Bus Converter is a high efficiency (>95%) Sine
Amplitude ConverterTM (SACTM) operating from a 38 to 55 Vdc
primary bus to deliver an isolated 12 V nominal, unregulated
secondary. The SAC offers a low AC impedance beyond the
bandwidth of most downstream regulators, meaning that input
capacitance normally located at the input of a 12 V regulator
can be located at the input to the SAC. Since the K factor of
the VIB0101THJ is 1/4, that capacitance value can be reduced
by a factor of 16x, resulting in savings of board area, materials
and total system cost.
The VIB0101THJ is provided in a V•I Chip package compatible
with standard pick-and-place and surface mount assembly
processes. The V•I Chip package provides flexible thermal
management through its low junction-to-case and junction-to-
board thermal resistance. With high conversion efficiency the
VIB0101THJ increases overall system efficiency and lowers
operating costs compared to conventional approaches.
VIN = 38 – 55 V
VOUT = 9.5 – 13.75 V (NO LOAD)
POUT = 120 W(NOM)
K = 1/4
enable / disable
switch
SW1
F1
VIN 3.15 A
C1 10 µF
TM
PC
+In BCM+Out
-In -Out
VOUT
POL
POL
POL
POL
v i c o r p o w e r. c o m
V•I CHIP INC. (A VICOR COMPANY) 25 FRONTAGE RD. ANDOVER, MA 01810 800-735-6200
Rev. 1.9
3/10
Page 1 of 16
1 page  
VIB0101THJ
1.1 APPLICATION CHARACTERISTICS
All specifications are at TJ = 25ºC unless otherwise noted. See associated figures for general trend data.
ATTRIBUTE
No Load Power
Inrush Current Peak
Efficiency (Ambient)
Efficiency (Hot – 100°C)
Output Resistance (-40°C)
Output Resistance (25°C)
Output Resistance (100°C)
Output Voltage Ripple
VOUT Transient (Positive)
VOUT Transient (Negative)
Undervoltage Lockout
Response Time
Output Overcurrent
Response Time
Overvoltage Lockout
Response Time
SYMBOL
PNL
INR-P
η
η
ROUT_C
ROUT_R
ROUT_H
VOUT-PP
VOUT-TRAN+
VOUT-TRAN-
TUVLO
CONDITIONS / NOTES
VIN = 48 V, PC enabled; See Figure 1
COUT = 500 µF, POUT = 120 W
VIN = 48 V, POUT = 120 W
COUT = 500 µF
VIN = 48 V, POUT = 120 W
COUT = 500 µF
VIN = 48 V
VIN = 48 V
VIN= 48 V
COUT = 0uF, POUT = 120 W @ VIN = 48,
VIN = 48 V
IOUT_STEP = 0 TO 10.55 A,
ISLEW >10 A/us; See Figure 12
IOUT_STEP = 10.55 A to 0 A,
ISLEW > 10 A/us; See Figure 11
TOCP
12 < IOCP < 25 A
TOVLO
TYP
1.75
6
95
94
35
44
56
160
1.4
1.3
2.4
4.4
2.4
UNIT
W
A
%
%
mΩ
mΩ
mΩ
mV
V
V
us
ms
µs
v i c o r p o w e r. c o m
V•I CHIP INC. (A VICOR COMPANY) 25 FRONTAGE RD. ANDOVER, MA 01810 800-735-6200
Rev. 1.9
3/10
Page 5 of 16
5 Page 
4.0 OPERATING
VIB0101THJ
Figure 16 – Timing diagram
v i c o r p o w e r. c o m
V•I CHIP INC. (A VICOR COMPANY) 25 FRONTAGE RD. ANDOVER, MA 01810 800-735-6200
Rev. 1.9
3/10
Page 11 of 16
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet VIB0101THJ.PDF ] | |
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