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| 型号： | P045T048T17AL |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 170 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT PACKAGE-16 |
| 文件页数： | 1/14页 |
| 文件大小： | 1245K |
| 代理商： | P045T048T17AL |
vicorpower.com
800-735-6200
VI Chip Pre-Regulator Module
P045F048T17AL
Rev. 2.1
Page 1 of 14
45 V input VI Chip
TM PRM
Vin range 38 – 55 Vdc
High density – 586 W/in3
Small footprint – 153 W/in2
Low weight – 0.5 oz (15 g)
Adaptive Loop feedback
ZVS buck-boost regulator
1.45 MHz switching frequency
97% efficiency
125C operation (Tj)
P045F048T17AL
Vin = 38 – 55 V
Vf = 26 – 55 V
Pf = 170 W
If = 3.5 A
PRMTM
Regulator
Product Description
The VI Chip Pre-Regulator Module is a very efficient
non-isolated regulator capable of both boosting and
bucking a wide range input voltage. It is specifically
designed to provide a controlled Factorized Bus
distribution voltage for powering downstream VI Chip
Voltage Transformation Modules — fast, efficient,
isolated, low noise Point-of-Load (POL) converters. In
combination, PRMs and VTMs
TM form a complete
DC-DC converter subsystem offering all of the unique
benefits of Vicor’s Factorized Power Architecture (FPA):
high density and efficiency; low noise operation;
architectural flexibility; extremely fast transient response;
and elimination of bulk capacitance at the Point-of-Load
(POL).
In FPA systems, the POL voltage is the product of the
Factorized Bus voltage delivered by the PRM and the
"K-factor" (the fixed voltage transformation ratio) of a
downstream VTM. The PRM controls the Factorized Bus
voltage to provide regulation at the POL. Because VTMs
perform true voltage division and current multiplication,
the Factorized Bus voltage may be set to a value that is
substantially higher than the bus voltages typically
found in "intermediate bus" systems, reducing
distribution losses and enabling use of narrower
distribution bus traces. A PRM-VTM chip set can provide
up to 100 A or 160 W at a FPA system density of
172 A/in3 or 276 W/in3 — and because the PRM can be
located, or "factorized," remotely from the POL, these
power densities can be effectively doubled.
The PRM described in this data sheet features a unique
"Adaptive Loop" compensation feedback: a single wire
alternative to traditional remote sensing and feedback
loops that enables precise control of an isolated POL
voltage without the need for either a direct connection
to the load or for noise sensitive, bandwidth limiting,
isolation devices in the feedback path.
Parameter
Values
Unit
Notes
+In to -In
-1.0 to 85.0
Vdc
PC to -In
-0.3 to 6.0
Vdc
PR to -In
-0.3 to 9.0
Vdc
IL to -In
-0.3 to 6.0
Vdc
VC to -In
-0.3 to 18.0
Vdc
+Out to -Out
-0.3 to 59
Vdc
SC to -Out
-0.3 to 3.0
Vdc
VH to -Out
-0.3 to 9.5
Vdc
OS to -Out
-0.3 to 9.0
Vdc
CD to -Out
-0.3 to 9.0
Vdc
SG to -Out
100
mA
Continuous output current
3.54
Adc
Continuous output power
170
W
Case temperature during reflow
225
°C
MSL 5
Operating junction temperature
-40 to 125
°C
T-Grade
Storage temperature
-40 to 125
°C
T-Grade
-In
PC
VC
TM
+In
-Out
+Out
VTM
+Out
-Out
K
Ro
+Out
–Out
+In
–In
VC
PC
TM
IL
VH
PR
NC
SG
SC
PRM-AL
OS
NC
CD
Factorized
Bus (Vf)
Vin
Vout
The P045F048T17AL is used with any 048 input series VTM to provide a regulated and
isolated output.
DC-DC Converter
Absolute Maximum Ratings
PRM
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