BEL 0RHB-C5T

ISOLATED DC/DC CONVERTERS
48 V Input
3.3 V/50 A, 5.0 V/30 A Output
0RHB-C5T Series
RoHS Compliant
PRELIMINARY
•
Isolated
•
Output Over Voltage Shutdown
•
High Efficiency
•
OCP/SCP
•
High Power Density
•
Over Temperature Protection
•
Low Cost
•
Remote On/Off
•
Fixed Frequency (330 kHz)
•
Output Voltage Trim
•
Input Under/Over Voltage Lockout
•
Positive/Negative Remote Sense
•
UL60950 Recognized (UL/cUL)
Description
The 0RHB-C5T Series are isolated dc/dc converters that operate from a nominal 48 V source. This unit will
provide up to 165 W of output power from a nominal 48 V input. This unit is designed to be highly efficient and
low cost. It is provided in an industry standard half-brick package.
Part Selection
Output
Voltage
5.0 V
3.3 V
Input
Voltage
48 V
48 V
Max. Output
Current
30 A
50 A
Max. Output
Power
150 W
165 W
Typical
Efficiency
93.0%
92.5%
Model Number
Active High
0RHB-C5T050
0RHB-C5T033
Model Number
Active Low
0RHB-C5T05L
0RHB-C5T03L
Note: Add “G” suffix at the end of the model number to indicate Tray Packaging.
Absolute Maximum Ratings
Parameter
Input Voltage (continuous)
Remote On/Off
I/O Isolation Voltage
Ambient Temperature
Storage Temperature
Min
-0.3 V
-0.3 V
-40 °C
-55 °C
Typ
-
Max
80 V
18 V
2000 V
85 °C
125 °C
Notes
Input Specifications
Parameter
Input Voltage
Input Current (full load)
Min
36V
Typ
48 V
Max
75 V
-
120 mA
5 mA
5.0 A
5.2 A
180 mA
20 mA
Input Reflected Ripple Current (pk-pk)
-
20 mA
40 mA
Input Reflected Ripple Current (rms)
-
5 mA
10 mA
Vo=5.0 V
Vo=3.3 V
Input Current (no load)
Remote Off Input Current
2
I t Inrush Current Transient
Turn-on Voltage Threshold
Turn-off Voltage Threshold
Input Over Voltage Threshold
31 V
29 V
76 V
2
0.05 A s
-
Notes
Tested with simulated source impedance
of 10 uH, 5 Hz to 20 MHz; use a 100 uF
/100 V electrolytic capacitor with ESR =
1 ohm max. at 200 kHz at 25 °C.
2
0.1 A s
35 V
33 V
80 V
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
48 V Input
3.3 V/50 A, 5.0 V/30 A Output
Output Specifications
Parameter
Output Voltage Set Point
Min
Typ
Max
Notes
Vo=5.0 V
Vo=3.3 V
4.925 V
3.250 V
5.000 V
3.300 V
5.075 V
3.350 V
Vin=48 V, Io=50% load
Vo=5.0 V
Vo=3.3 V
-
±5 mV
±3 mV
±10 mV
±7 mV
Vo=5.0 V
Vo=3.3 V
-
±10 mV
±7 mV
±20 mV
±15 mV
Vo=5.0 V
Vo=3.3 V
-
±45 mV
±30 mV
±75 mV
±50 mV
Vo=5.0 V
Vo=3.3 V
0A
0A
-
30 A
50 A
Vo=5.0 V
Vo=3.3 V
32 A
55 A
38 A
65 A
45 A
75 A
-
3A s
5A s
Vo=5.0 V
Vo=3.3 V
-
25 mV
15 mV
50 mV
30 mV
Vo=5.0 V
Vo=3.3 V
-
70 mV
55 mV
140 mV
100 mV
Turn on Time
-
15 mS
20 mS
Overshoot at Turn on
-
0%
5%
0 uF
0 uF
-
10000 uF
20000 uF
-
250 mV
400 mV
-
250 uS
400 uS
-
250 mV
400 mV
Settling Time
-
250 uS
400 uS
Overshoot
-
100 mV
200 mV
Settling Time
-
200 uS
300 uS
-
100 mV
200 mV
-
200 uS
300 uS
Line Regulation
Load Regulation
Regulation Over Temperature
(-40 °C to +85 °C)
Output Current
Current Limit Threshold
Short Circuit Surge Transient
2
2
Ripple and Noise (rms)
Ripple and Noise (pk-pk)
Test conditions:
0-20MHz BW, with a
1uF ceramic capacitor
and a 10uF Tantalum
capacitor at the output.
Output Capacitance
Vo=5.0 V
Vo=3.3 V
Transient Response
75% ~ 50%
Max Load
50% ~ 75%
Max Load
75% ~ 50%
Max Load
50% ~ 75%
Max Load
Overshoot
Settling Time
Overshoot
Overshoot
Settling Time
Vo=5.0 V
Vo=3.3 V
Test conditions: di/dt =
0.1 A/uS, Vin=48 V with
a 1 uF ceramic
capacitor and a 10 uF
Tantalum capacitor at
the output.
Note: All specifications are typical at nominal input, full load at 25 °C unless noted.
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
48 V Input
3.3 V/50 A, 5.0 V/30 A Output
General Specifications
Parameter
Min
Typ
Max
90%
90%
300 kHz
80% Vo
-
93.0%
92.5%
330 kHz
1500 pF
120 °C
130% Vo
-
360 kHz
110% Vo
2000 V
Notes
Efficiency
Vo=5.0 V
Vo=3.3 V
Switching Frequency
Isolation capacitance
Output Voltage Trim Range
Over Temperature Protection
1
Over Voltage Protection
2
Input to Output Isolation Voltage
MTBF
Vin=48V, full load , Ta=25°C
Calculated Per Bell Core SR-332 (IO =
Nominal; Ta = 25 °C)
TBD
Dimensions
Inches
millimeters
Weight
-
2.28 x 2.4 x 0.42
57.51 x 60.98 x 10.67
76 g
-
Notes: All specifications are typical at 25 °C unless otherwise stated.
1. OVP is tested under 48 Vin and full load with photo coupler short. The output will be latched off if the
output voltage exceeds over voltage specification. To turn the converter on requires either cycling
the ON/OFF pin or power to the converter.
2. Isolation between input and output is basic isolation, test duration is 60 seconds.
Control Specifications
Parameter
Min
Typ
Max
Notes
-0.3 V
2.4 V
-0.3 V
2.4 V
-
0.8 V
18 V
0.8 V
18 V
The remote on/off pin open, Unit
off.
Remote On/Off
Signal Low (Unit On)
Signal High (Unit Off)
Signal Low (Unit Off)
Signal High (Unit On)
Active Low
Active High
The remote on/off pin open, Unit
on.
Output Trim Equations
Equations for calculating the trim resistor (in kΩ) are shown below. The Trim Down resistor should be connected
between the Trim pin and Ground 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.
Rtrimdown =
Rtrimup =
Notes:
delta =
100
− 2[kΩ]
delta
(100 + delta) ⋅ Vo − 122.5
− 2[kΩ]
1.225 ⋅ delta
(Vo _ req − Vo ) ×100[%]
Vo
Vo_req=Desired(trimmed) output voltage[V]
Output voltage Vo=3.304 V for 3.3 V; Vo=5.008 V for 5 V.
Vout
Module
Trim
GND
Rtrimdown
Vout
Module
Trim
Rtrimup
GND
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
48 V Input
3.3 V/50 A, 5.0 V/30 A Output
Efficiency Data
Efficiency Curve
94%
94%
90%
90%
86%
86%
36 V
48 V
75 V
82%
78%
74%
Efficiency
Efficiency
Efficiency Curve
36 V
48 V
75 V
82%
78%
74%
70%
70%
5
10
15
20
25 30
35
40 45
Output Current (A)
0RHB-C5T03x
50
5
10
15
20
25
30
Output Current (A)
0RHB-C5T05x
Thermal Derating Curves
0RHB-C5T03x
0RHB-C5T05x
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
48 V Input
3.3 V/50 A, 5.0 V/30 A Output
Ripple and Noise Waveforms
Ripple and noise at full load 3.3 V/50 A output
Ripple and noise at full load 5.0 V/30 A output
Note: Ripple and noise at 48 V input, with a 1 uF ceramic capacitor and a 10 uF tantalum capacitor at the output
and Ta=25 deg C,.
Transient Response Waveforms
Vout=3.3 V, 50% to 75% Load Transients
Vout=3.3 V, 75% to 50% Load Transients
Vout=5.0 V, 50% to 75% Load Transients
Vout=5.0 V, 75% to 50% Load Transients
Note: Transient Response is tested at di/dt=0.1 A/us (Vo=3.3 V), di/dt=0.5 A/us (Vo=5.0 V), Vin=48 V, Ta=25°C,
with a 1 µF ceramic capacitor and a 10 µF tantalum capacitor at the output.
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
48 V Input
3.3 V/50 A, 5.0 V/30 A Output
Mechanical Outline
Pin Connections
pin#
1
2
3
4
5
function
-Input
N/A
On/Off
+Input
+Output
pin size
0.04"
0.04"
0.04"
0.08"
pin#
6
7
8
9
10
11
function
N/A
+Sense
Trim
-Sense
N/A
-Output
pin size
0.04"
0.04"
0.04"
0.08"
RoHS Compliance
Complies with the European Directive 2002/95/EC, calling for the elimination of lead and
other hazardous substances from electronic products.
©2006 Bel Fuse Inc. Specifications subject to change without notice. 032206
CORPORATE
FAR EAST
EUROPE
Bel Fuse Inc.
206 Van Vorst Street
Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
Bel Fuse Ltd.
8F/ 8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel 852-2328-5515
Fax 852-2352-3706
www.belfuse.com
Bel Fuse Europe Ltd.
Preston Technology Management Centre
Marsh Lane, Suite G7, Preston
Lancashire, PR1 8UD, U.K.
Tel 44-1772-556601
Fax 44-1772-888366
www.belfuse.com