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参数资料
型号： PRM48BF480T400A00
元件分类： 稳压器
英文描述： 8.33 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, DMA24
封装： ROHS COMPLIANT PACKAGE-24
文件页数： 12/22页
文件大小： 1097K
代理商： PRM48BF480T400A00
Rev. 1.1
12 / 2010
Page 2 of 22
PRM48BF480T400A00
(Formerly VIP0001TFJ)
VI CHIP CORP. (A VICOR COMPANY) 25 FRONTAGE RD. ANDOVER, MA 01810 800-735-6200
1.0 ABSOLUTE MAXIMUM RATINGS
The ABSOLUTE MAXIMUM ratings below are stress ratings only. Operation at or beyond these maximum ratings can cause
permanent damage to device. Electrical specifications do not apply when operating beyond rated operating conditions. All
voltages are specified relative to SG unless otherwise noted. Positive pin current represents current flowing out of the pin.
Min
Max
Unit
-0.3
10.5
V
±10
mA
-0.3
5.7
V
±10
mA
-0.3
5.7
V
±1
mA
-1
62
V
-0.5
10.5
V
±100
mA
±100
mA
-0.5
5.7
V
-0.3
5
V
-0.5
18
V
±1.8
A
-1
62
V
±11
A
-40
125
C
-40
125
C
+IN to –IN
………………………………………………………………………..
VC to –OUT
……………………………………………………………………………
IF
+OUT to –OUT
VS
RE
……………………………………………………………………………
SG
PR
PC
TM
………………………………………………………………………..
……………………………………………………………………………
………………………………………………………………………..
Operating Analog IC Junction Temperature
Storage Temperature ……………………………………………………………………………
Output Current
2.0 ELECTRICAL CHARACTERISTICS
Specifications apply over all line and load conditions, TJ = 25 C and output voltage from 20V to 55V, unless otherwise noted.
Boldface specifications apply over the temperature range of -40 C < TJ < 125 C (T-grade).
Attribute
Symbol
Min
TypMax
Unit
POWER INPUT SPECIFICATION
Input Voltage Range
VIN
38
45
55
V
VIN Slew Rate
dVIN/dt
0.001
1000
V/ms
No Load Power Dissipation
PNL
2.4
4
W
Input Quiescent Current
IQC
4.5
8.5
mA
Input Current
IIN DC
10.9
11.0
A
Input Capacitance (Internal)
CIN INT
4
F
Input Capacitance (Internal) ESR
RCin
1.5
m
POWER OUTPUT SPECIFICATION
Output Voltage Range
VOUT
5
48
55
V
Output Current
IOUT
8.33
A
Output Power
POUT
400
W
±10
%
±24
%
±35
%
96.5
97.4
%
94.8
%
90.0
%
Output Discharge current
IOD
13
mA
Output Voltage Ripple
VOUT PP
960
1500
mV
Output Inductance (Parasitic)
LOUT PAR
1.9
nH
Output Capacitance (Internal)
COUT INT
4
F
Output Capacitance (Internal) ESR
RCout
1.5
m
POWERTRAIN PROTECTIONS
Input Undervoltage Turn-ON
VIN UVLO+
35.75
37.13
V
Input Undervoltage Turn-OFF
VIN UVLO-
31.97
33.56
V
Input Overvoltage Turn-ON
VIN OVLO+
55.91
57.24
V
Input Overvoltage Turn-OFF
VIN OVLO-
58.44
59.91
V
Overcurrent (IF) and Input
Over/Undervoltage Blanking Time
TBLNK
50
120
150
s
Output Overvoltage Threshold
VOUT OVLO+
55.25
56.57
59.04
V
Thermal Shutdown Setpoint
TJOTP
130
C
Overtemperature, Output Overvoltage
and PC Shutdown Response Time
TPROT
2
s
Short Circuit Vout Threshold
VSC VOUT
3.0
V
Short Circuit Vout Recovery Threshold
VSC VOUTR
4.0
V
Short Circuit Vpr Threshold
VSC VPR
7.2
V
Short Circuit Vpr Recovery Threshold
VSC VPRR
7.1
V
Short Circuit Timeout
TSC
20
ms
Short Circuit Recovery Time
TSCR
0.1
ms
Output Power Limit
PPROT
400
W
Conditions / Notes
Output Turn-ON Delay
>50% load; over temperature
Equal input, output and PR voltage at full load;
Over line and trim, with 25°C < TC < 100°C but negligible part-part temp mismatch
See Fig.16, SOA
0 < VIN < 18 V
PC HIGH, VIN = 45 V
Instantanous powertrain shutdown, latched after TBLNK
Short circuit fault latched after VSC_VOUT and VSC_VPR thresholds persist for this time
Effective value, VIN = 45 V (see Fig. 20)
From VIN applied, PC floating
PC LOW, VIN = 45 V
IOUT = 8.33A, VIN = 38 V, VOUT = 48 V
s
Frequency @ 1 MHz, Simulated J-Lead model
COUT_EXT = 0 F, IOUT = 8.33 A, VIN = 45 V, VOUT = 48 V, 20 MHz BW
20
From PC pin release, VIN applied, TOFF expired
Effective value, VOUT = 48 V (see Fig. 20)
Nominal line, full load, VOUT = 48V
TON
50% load and VOUT = 48 V; over temperature
Section 4.0
Current Sharing Difference
(exclusive of current limit)
IOUT_SHARE
Equal input, output and PR voltage at full load;
VIN = 45 V, VOUT = 48 V
Equal input, output and PR voltage at full load;
Over line and trim, with 25°C < TC < 100°C and <= 75°C part-part temp. mismatch (worst case)
Efficiency
Instantaneous, latched shutdown
Instantaneous, latched shutdown; guaranteed by design, not production tested; VTM = 4.03V
η
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