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PDF PRM48BF480T400A00 Data sheet ( Hoja de datos )
| Número de pieza | PRM48BF480T400A00 | |
| Descripción | Regulator | |
| Fabricantes | VICOR | |
| Logotipo |  |
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PRM™
Regulator
PRM48BF480T400A00
(Formerly VIP0001TFJ)
FEATURES
45 V (38 to 55), non-isolated ZVS buck-boost regulator
5 to 55 V adjustable output range
Building block for high efficiency DC-DC systems
400W output power in 1.1 in2 footprint
97% typical efficiency, at full load
1,360 W/in3 (83 W/cm3) Power Density
Enables a 48 V to 1.5 V, 230 A isolated, regulated
solution with total footprint of 3.3 in2 (21 cm2)
Flexible “Remote Sense” architecture optimizes
regulation / feedback loop design to fit application
requirements
Current feedback signal allows dynamic adjustment of
current limit setpoint
3.61 MHrs MTBF (MIL-HDBK-217Plus Parts Count)
TYPICAL APPLICATIONS
High Efficiency Server Processor and Memory Power
High Density ATE System DC-DC Power
Telecom NPU and ASIC Core Power
LED Drivers
High Density Power Supply DC-DC Rail Outputs
Non-isolated Power Converters
DESCRIPTION
The V•I Chip™ PRM™ Regulator is a high efficiency
converter, operating from a 38 to 55 Vdc input to generate
a regulated 5 to 55 Vdc output. The ZVS buck – boost
topology enables high switching frequency (~1 MHz)
operation with high conversion efficiency. High switching
frequency reduces the size of reactive components
enabling power density up to 1,360 W/in3.
The full V•I Chip package is compatible with standard pick-
and-place and surface mount assembly processes with a
planar thermal interface area and superior thermal
conductivity.
In a Factorized Power Architecture™ system, the
PRM48BF480T400A00 and downstream VTM™ current
multiplier minimize distribution and conversion losses in a
high power solution.
An external control loop and current sensor maintain
regulation and enable flexibility both in the design of
voltage and current compensation loops to control of
output voltages and currents.
48 V to 1.5 V, 230A Voltage Regulator
Voltage
Control
Enable/
Disable
38 to 55
Vdc Input
PC PR TM
+IN +OUT
PRMTM
Regulator
-IN
IF RE
-OUT
SG VC
Constant
Vc
Voltage
Reference
Current
Sense
Feedback
PC
+IN +OUT1
+OUT2
VTMTM Current
Multiplier
-IN -OUT1
VC -OUT2
PC
+IN +OUT1
+OUT2
VTMTM Current
Multiplier
-IN -OUT1
VC -OUT2
Load
V•I CHIP CORP. (A VICOR COMPANY) 25 FRONTAGE RD. ANDOVER, MA 01810 800-735-6200
Rev. 1.2
07 / 2012
Page 1 of 22
1 page  
PRM48BF480T400A00
(Formerly VIP0001TFJ)
4.0 FUNCTIONAL BLOCK DIAGRAM
+Vin
Vcc
Internal
Vcc
Regulator
-Vin
16V
Vcc PC PR Vout
3.3V
Linear
Regulator
3.3V
RE
uC 8051
9V +Vout
8.2V
PR
PR
93.3k
2.5mA Min
0.5mA
Output
Discharge
(OD)
Var. Vclamp
Cin
Modulator
Enable
Q1
Q2
Vcc
100uA
Q SET S
Q CLR R
TOFF
delay
R
3V 5V
2mA max
PC
10uA
PC
VPC_EN
TM
3 V @ 27°C
Temperature
dependent voltage
source
Enable
Fault Logic
Instant
latch
Latch after
120us
Vout
(OV)
Vin
(OV, UV)
Overtemperature
Protection
Vref
(130°C)
Current Limit
Overcurrent
Protection
Q3
L
Q4
Cout
+Vout
-Vout
VTM Vc Start up pulse
14V
10ms
VC
RE
3.3V
RE
Vs
9V
0.01uF
VIF_IL
VIF_OC
SG
IF
V•I CHIP CORP. (A VICOR COMPANY) 25 FRONTAGE RD. ANDOVER, MA 01810 800-735-6200
Rev. 1.2
07 / 2012
Page 5 of 22
5 Page 
PRM48BF480T400A00
(Formerly VIP0001TFJ)
Efficiency & Power Dissipation
VOUT = 55 V TCASE = 100 ºC
98 18
96
94 16
92
90 14
88
86 12
84
82 10
80
78 8
76
74 6
72
70 4
0123456789
Load Current [A]
VIN: 38 45 55 38 45 55
Figure 11 – Total efficiency and power dissipation vs. VIN
and IOUT, VOUT = 55 V, TCASE = 100ºC
Figure 13 – Typical output voltage ripple waveform, TCASE =
30ºC, VIN = 45 V, VOUT = 48 V, IOUT = 8.33 A, no external
capacitance.
VPR vs. Case Temperature
VIN = 45 V; VOUT = 48 V
6.5
6 6.16
5.5
6.20
6.04
5
4.5 4.70
4
-40
-20
IOUT:
4.70
4.52
0 20 40 60
Temperature [ºC]
80
4.17 8.33
100
Figure 12 – Typical control node voltage vs. TCASE, IOUT;
VIN = 45 V, VOUT = 48 V
Powertrain switching frequency and periodic
output charge vs. input voltage - Full load
1025
1000
fsw
36
32
975 28
950 24
925 20
900 16
875 C 12
850 8
825 4
800 0
38 40 42 44 46 48 50 52 54 56
VOUT
Input Voltage [V]
55 20 48 55 20 48
Figure 14 – Powertrain switching frequency and periodic
output charge vs. VIN, VOUT; IOUT = 8.33 A
Powertrain switching frequency and periodic
input charge vs. input voltage - Full load
1025
1000
fsw 36
32
975 28
950 24
925 20
900 16
875 12
C
850 8
825 4
800 0
38 40 42 44 46 48 50 52 54 56
VOUT
Input Voltage [V]
55 20 48 55 20 48
Figure 15 – Powertrain switching frequency and periodic
input charge vs. VIN, VOUT; IOUT = 8.33 A
DC Safe Operating Area
10.42
400
8.33
320
6.25
240
4.17
160
2.08
80
0.00
0
5 10 15 20 25 30 35 40 45 50 55 60
Output Voltage [V]
Current
Power
Figure 16 – DC Output Safe Operating Area
V•I CHIP CORP. (A VICOR COMPANY) 25 FRONTAGE RD. ANDOVER, MA 01810 800-735-6200
Rev. 1.2
07 / 2012
Page 11 of 22
11 Page | ||
| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet PRM48BF480T400A00.PDF ] | |
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