ISOLATED DC/DC CONVERTERS
38 Vdc - 55 Vdc Input
53 Vdc/8 A Output
HBW53V08MRG
•
•
•
•
•
•
RoHS Compliant
•
•
•
•
•
•
•
Rev.B
Fixed Frequency (270 kHz)
Isolated
High Efficiency
Low Cost
Input Under/Over-Voltage
Lockout
Output Voltage Trim
Output Over-Voltage Shutdown
Over Temperature Protection
SCP/OCP
Basic Insulation
Remote On/Off
Excellent Thermal Performance
Both
of IEEE802.3af and
IEEE802.3at
compliant
Description
The HBW53V08MRG is an isolated dc/dc converter that operates from a nominal 48 Vdc source. This unit
provides up to 424 W of output power from a nominal 48 Vdc input. This unit is designed to be highly efficient and
low cost. The converter is provided in an industry standard half brick package.
Part Selection
Output
Voltage
53 Vdc
Input Voltage
38 Vdc - 55 Vdc
Max. Output
Current
8A
Max. Output
Power
424 W
Typical
Efficiency
93%
Model Number
HBW53V08MRG
Notes:
1. Add “G” suffix at the end of the model number to indicate Tray Packaging.
2. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers.
Absolute Maximum Ratings
Parameter
Input Voltage
Remote On/Off
I/O Isolation Voltage
Ambient Temperature
Storage Temperature
Min
-0.3 V
-0.3 V
2250 V
-40
°C
-55
°C
Typ
-
-
-
-
-
Max
65 V
5V
-
100
°C
125
°C
Notes
Input Specifications
Parameter
Input Voltage
Input Current (no load)
Input Current (full load)
Remote Off Input Current
Input Reflected Ripple Current
(pk-pk)
Input Reflected Ripple Current
(rms)
Turn-on Voltage Threshold
Input Under Voltage Threshold
Input Over Voltage Threshold
Min
38 V
-
-
-
-
-
34 V
33 V
56 V
Typ
48 V
70 mA
-
10 mA
20 mA
5 mA
36 V
35 V
-
Max
55 V
100 mA
12.5 A
20 mA
40 mA
10 mA
37.5 V
36.5 V
60 V
Notes
With simulated source impedance of 12
uH, 5 Hz to 20 MHz; use a 100uF/100 V
electrolytic capacitor with ESR = 1 ohm
max, at 200 kHz
Note:
All specifications are typical at nominal input, full load at 25
°C
unless otherwise stated
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
•
Tel 201-432-0463
•
Fax 201-432-9542
•
www.belfuse.com
ISOLATED DC/DC CONVERTERS
38 Vdc - 55 Vdc Input
53 Vdc/8 A Output
Output Specifications
Parameter
Output Voltage Set Point
Load Regulation
Line Regulation
Regulation Over Temperature
(-40deg.C-85deg.C)
Output Current Range
Output DC Current Limit
Ripple and Noise (rms)
Ripple and Noise (pk-pk)
Short Circuit Protection
Turn On Time
Rise Time
Overshoot at Turn on and off
Output Capacitance
Transient Response
△V25%
- 75%
of Max Load
△V75%
- 25%
of Max Load
Overshoot
Settling Time
Overshoot
Settling Time
-
-
-
-
400 mV
400 uS
400 mV
400 uS
800 mV
600 uS
800 mV
600 uS
di/dt=0.1 A/us, Vin=48 Vdc,
Ta=25 °C, with a 1µF ceramic
capacitor and a 200 uF
Aluminum cap at output.
Min
52.5 V
-
-
-
0A
9A
-
-
-
-
-
-
200 uF
Typ
53 V
0.1%Vo
0.1%Vo
-
-
-
50 mV
160 mV
-
-
-
0%
-
Max
53.5 V
0.3%Vo
0.3%Vo
0.02%Vo
8A
12 A
80 mV
250 mV
-
90 mS
80 mS
3%
1000 uF
0 - 20 MHz BW, with 1 uF
ceramic capacitor and a 200 uF
Aluminum capacitor at output
Latched
Notes
V
in
=48 V, Io=50%load
Note:
All specifications are typical at nominal input, full load at 25°C with a 1µF ceramic capacitor and a 200uF
Aluminum cap at output unless otherwise stated.
General Specifications
Parameter
Efficiency
Switching Frequency
Isolation Capacitance
Remote Sense Compensation
Output Voltage Trim Range
Over Temperature Protection
Over Voltage Protection
MTBF
Dimensions
Inches (L
×
W
×
H)
Millimeters (L
×
W
×
H)
Weight
-
2.30 x 2.40 x 0.49
58.42 x60.96 x 12.44
88 g
-
Min
92%
240 kHz
-
-
42 V
-
56 V
Typ
93%
270 kHz
4400 pF
-
-
100
℃
-
TBD
Max
-
300 kHz
-
1V
56 V
-
59 V
V
in
=48 V, full load
Calculated Per Bell Core SR-332
(Vin=48 V, Vo=normal, Io=80%load,
T
a
= 25
°C)
Notes
V
in
=48 V, full load
Note:
All specifications are typical at 25
°C
unless otherwise stated.
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
•
Tel 201-432-0463
•
Fax 201-432-9542
•
www.belfuse.com
ISOLATED DC/DC CONVERTERS
38 Vdc - 55 Vdc Input
53 Vdc/8 A Output
Control Specifications
Parameter
Remote On/Off
Signal Low (Unit On)
Signal High (Unit Off)
Active Low
Min
-0.3 V
2.4 V
Typ
-
-
Max
0.6 V
5V
Notes
The remote on/off pin open, Unit
Off.
Output Trim Equations
Equations for calculating the trim resistor are shown below. The Trim Down resistor should be connected
between the Trim pin and GND pin. The Trim Up resistor should be connected between the Trim pin and the Vout.
Only one of the resistors should be used for any given application.
Vout
Rtrimup
=
(100
+
delta
)
⋅
Vo
(100
+
2
⋅
delta
)
−
[
k
Ω
]
1.225
⋅
delta
delta
Module
Trim
GND
Rtrimup
100
Rtrimdown
=
−
2
[
k
Ω
]
delta
Vout
Module
Trim
GND
Rtrimdown
Note:
delta
=
(
Vo
_
req
−
Vo
)
×
100
[
%
]
Vo
Vo_req=Desired(trimmed) output voltage[V]
Output voltage Vo=53 V
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
•
Tel 201-432-0463
•
Fax 201-432-9542
•
www.belfuse.com
ISOLATED DC/DC CONVERTERS
38 Vdc - 55 Vdc Input
53 Vdc/8 A Output
Efficiency Data
Efficiency Curve
95.0%
90.0%
Efficiency
85.0%
80.0%
75.0%
70.0%
65.0%
60.0%
0.80
2.00
4.00
6.00
8.00
38 V
48 V
55 V
Output Current(A)
Thermal Derating Curve
heatsink for above
thermal test
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
•
Tel 201-432-0463
•
Fax 201-432-9542
•
www.belfuse.com
ISOLATED DC/DC CONVERTERS
38 Vdc - 55 Vdc Input
53 Vdc/8 A Output
Ripple and Noise Waveform
48 Vdc input, 53 Vdc/8 A outputt
Note:
Ripple and noise at full load, with a 1uF ceramic cap and a 200 uF/100 V Aluminum cap at output, Ta=25
deg C.
Transient Response Waveforms
Vout= 53 V 25%-75% Load Transient
Vout= 53 V 75%-25% Load Transient
Note:
Transients at di/dt=0.1 A/us, Vin=48 Vdc, Ta=25℃ and with a 1uF ceramic cap and a 200 uF/100 V
Aluminum cap at output.
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
•
Tel 201-432-0463
•
Fax 201-432-9542
•
www.belfuse.com
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