BEL XRSB-30T

ISOLATED DC/DC CONVERTERS
48 Vdc Input, 1.2 Vdc - 12 Vdc / 15 A - 3 A Outputs, 1/16 Brick Converter
xRSB-30T Series
RoHS Compliant
Rev.A
• Isolated
• Input Under-Voltage Lockout
• Fixed Frequency (550 kHz)
• Output Over-Voltage Shutdown
• High Efficiency
• OCP/SCP
• High Power Density
• Over Temperature Protection
• Low Cost
• Remote On/Off (Option)
• Output Voltage Trim
• Positive/Negative Remote Sense
• Basic Insulation
• Through Hole and SMT(Option)
• UL60950-1 Recognized (UL/cUL)
Description
The xRSB-30T series are isolated dc/dc converters that operate from a nominal 48 Vdc source. These units will
provide up to 30 W of output power from a nominal 48 Vdc input. These units are designed to be highly efficient
and low cost. Features include remote on/off, over current protection and under voltage lockout. These converters
are provided in an industry standard sixteenth brick package.
Part Selection
Output
Voltage
1.2 Vdc
Input Voltage
36 Vdc - 75 Vdc
Max. Output
Current
15 A
Max. Output
Power
18 W
Typical
Efficiency
84%
Model Number
Active Low
xRSB-30TV2L
Model Number
Active High
xRSB-30TV20
1.5 Vdc
36 Vdc - 75 Vdc
13 A
19.5 W
86%
xRSB-30TV5L
xRSB-30TV50
1.8 Vdc
36 Vdc - 75 Vdc
13 A
23 W
86%
xRSB-30TV8L
xRSB-30TV80
2.5 Vdc
36 Vdc - 75 Vdc
10 A
25 W
89%
xRSB-30T02L
xRSB-30T025
3.3 Vdc
36 Vdc - 75 Vdc
10 A
30 W
90%
xRSB-30T03L
xRSB-30T033
5.0 Vdc
36 Vdc - 75 Vdc
7A
35 W
90%
xRSB-30T05L
xRSB-30T050
12 Vdc
36 Vdc - 75 Vdc
3A
36 W
89%
xRSB-30T12L
xRSB-30T120
Notes: 1. Add “G” suffix at the end of the model number to indicate Tray Packaging. Replace”x” with “S” to
indicate SMT package, or “0” to indicate through hole package.
2. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers
Absolute Maximum Ratings
Parameter
Min
Typ
Max
Input Voltage (continuous)
-0.3 V
-
80 V
Input Voltage Transient (100 ms)
-0.3 V
Remote On/Off
-0.3 V
-
18 V
-
-
1500 V
Ambient Temperature
-40 °C
-
85 °C
Storage Temperature
-55 °C
-
125 °C
I/O Isolation Voltage
Notes
100 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
48 Vdc Input, 1.2 Vdc - 12 Vdc / 15 A - 3 A Outputs, 1/16 Brick Converter
Input Specifications
Parameter
Min
36 V
Typ
48 V
Max
75 V
Input Current (full load)
-
-
1.6 A
Input Current (no load)
-
30 mA
120 mA
Remote Off Input Current
-
2 mA
6 mA
Input Reflected Ripple Current (pk-pk)
-
20 mA
50 mA
Input Reflected Ripple Current (rms)
-
3 mA
7 mA
I t Inrush Current Transient
-
0.01 A s
0.02 A s
Turn On Voltage Threshold
31 V
33 V
35 V
Turn Off Voltage Threshold
28 V
32 V
35 V
Input Voltage
2
2
Notes
Tested with simulated source
impedance of 15 uH, 5 Hz to 20
MHz; use a 100 uF/100 V
electrolytic capacitor with ESR=1
ohm max at 200 kHz at the input.
2
Note: All specifications are typical at nominal input, full load at 25 °C unless otherwise stated.
Output Specifications
Parameter
Output Voltage Set Point
Min
Typ
Max
1.182 V
1.478 V
1.773 V
2.463 V
3.250 V
4.900 V
11.750 V
1.2 V
1.5 V
1.8 V
2.5 V
3.3 V
5.0 V
12.0 V
1.218 V
1.523 V
1.827 V
2.538 V
3.350 V
5.100 V
12.250 V
Vo=1.2 - 1.8 V
Vo=2.5 V
Vo=3.3 V
Vo=5.0 V
Vo=12 V
-
±0.5 mV
±2.0 mV
±3.0 mV
±4.0 mV
±6.0 mV
±3 mV
±6 mV
±8 mV
±9 mV
±20 mV
Vo=1.2 - 2.5 V
Vo=3.3 - 5.0 V
Vo=12 V
-
±3 mV
±4 mV
±5 mV
±5 mV
±9 mV
±10 mV
-
±7 mV
±9 mV
±15 mV
±20 mV
±15 mV
±16 mV
±30 mV
±35 mV
0A
0A
0A
0A
0A
0A
0A
-
15 A
13 A
13 A
10 A
10 A
7A
3A
Vo=1.2 V
Vo=1.5 V
Vo=1.8 V
Vo=2.5 V
Vo=3.3 V
Vo=5.0 V
Vo=12 V
Line Regulation
Load Regulation
Regulation Over Temperature
(-40 °C to +85 °C)
Vo=1.2 - 1.8 V
Vo=2.5 - 3.3 V
Vo=5.0 V
Vo=12 V
Notes
Test conditions:
Vin=48 V; Io=50% load
Output Current
Vo=1.2 V
Vo=1.5 V
Vo=1.8 V
Vo=2.5 V
Vo=3.3 V
Vo=5.0 V
Vo=12 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
48 Vdc Input, 1.2 Vdc - 12 Vdc / 15 A - 3 A Outputs, 1/16 Brick Converter
Output Specifications (continued)
Parameter
Current Limit Threshold
Min
Typ
Max
18 A
14 A
14 A
11 A
10.5 A
7.5 A
3.5 A
-
24 A
20 A
19 A
16 A
15.5 A
9.5 A
4.5 A
2
0.5 A s
30 A
26 A
24 A
21 A
25 A
14 A
6A
2
1A s
Vo=1.2 - 2.5 V
Vo=3.3 V
Vo=5.0 - 12 V
-
10 mV
15 mV
30 mV
20 mV
30 mV
55 mV
Vo=1.2 - 2.5 V
Vo=3.3 V
Vo=5.0 V
Vo=12 V
-
40 mV
65 mV
90 mV
80 mV
35 mS
0%
70 mV
110 mV
150 mV
140 mV
70 mS
5%
Vo=1.2 - 1.5 V
Vo=1.8 V
Vo=2.5 V
Vo=3.3 V
Vo=5.0 V
Vo=12 V
220 uF
220 uF
220 uF
0 uF
0 uF
0 uF
-
15000 uF
10000 uF
6800 uF
4700 uF
2200 uF
330 uF
Vo=1.2 V
Vo=1.5 V
Vo=1.8 V
Vo=2.5 V
Vo=3.3 V
Vo=5.0 V
Vo=12 V
Short Circuit Surge Transient
Notes
Ripple and Noise (rms)
Ripple and Noise (pk-pk)
Turn on Time
Overshoot at Turn on
Output Capacitance
Transient Response
Overshoot
25% ~ 50%
Max Load
Settling Time
Overshoot
50% ~ 25%
Max Load
Settling Time
Overshoot
25% ~ 50%
Max Load
Settling Time
Overshoot
50% ~ 25%
Max Load
Settling Time
Overshoot
25% ~ 50%
Max Load
Settling Time
Overshoot
50% ~ 25%
Max Load
Settling Time
Overshoot
25% ~ 50%
Max Load
Settling Time
Overshoot
50% ~ 25%
Max Load
Settling Time
Overshoot
25% ~ 50%
Max Load
Settling Time
Overshoot
50% ~ 25%
Max Load
Settling Time
Overshoot
25% ~ 50%
Max Load
Settling Time
Overshoot
50% ~ 25%
Max Load
Settling Time
Vo=1.2 V
Vo=1.5 - 1.8 V
Vo=2.5 V
Vo=3.3 V
Vo=5.0 V
Vo=12 V
-
100 mV
100 uS
100 mV
100 uS
150 mV
120 uS
150 mV
120 uS
200 mV
100 uS
200 mV
100 uS
200 mV
200 uS
200 mV
200 uS
350 mV
200 uS
350 mV
200 uS
270 mV
110 uS
270 mV
110 uS
150 mV
150 uS
150 mV
150 uS
200 mV
200 uS
200 mV
200 uS
300 mV
150 uS
300 mV
150 uS
350 mV
350 uS
350 mV
350 uS
500 mV
350 uS
500 mV
350 uS
450 mV
200 uS
450 mV
200 uS
Tested at 0-20 MHz
BW, with a 1 uF
ceramic capacitor and
a 10 uF Tantalum
capacitor at the
output.
Test conditions: di/dt
= 0.1 A/uS, Vin=48 V,
with a 1uF ceramic
capacitor and a 10 uF
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 Vdc Input, 1.2 Vdc - 12 Vdc / 15 A - 3 A Outputs, 1/16 Brick Converter
Note: All specifications are typical at nominal input, full load at 25 °C unless otherwise stated.
General Specifications
Parameter
Min
Typ
Max
81%
83%
83%
84%
87%
86%
84%
86%
86%
87%
90%
89%
-
Switching Frequency
500 kHz
550 kHz
600 kHz
Isolation Capacitance
-
3900 pF
-
Output Voltage Trim Range
90% Vo
-
110% Vo
Over Temperature Protection
120 °C
-
140 °C
-
130% Vo
160% Vo
Notes
Efficiency
Vo=1.2 V
Vo=1.5 V
Vo=1.8 V
Vo=2.5 V
Vo=3.3 - 5.0 V
Vo=12 V
Over Voltage Protection
MTBF
Vin=48 V, full load
Test conditions: Vin=48 V, full load and
short the feedback optocoupler.
Calculated Per Bell Core SR-332 (IO =
Nominal; Ta = 25 °C)
TBD
Dimensions
Inches (L × W × H)
Millimeters (L × W × H)
Dimensions
Inches (L × W × H)
Millimeters (L × W × H)
Weight
1.3 x 0.9 x 0.364
33.02 x 22.86 x 9.24
SMT Package
1.3 x 0.9 x 0.378
33.02 x 22.86 x 9.60
Through Hole Package
-
13 g
-
Note: All specifications are typical at 25 °C unless otherwise stated.
Control Specifications
Parameter
Min
Typ
Max
-0.3 V
-
0.8 V
2.95 V
-
18 V
-0.3 V
-
0.8 V
2.95 V
-
18 V
0 mA
-
1 mA
Notes
Remote On/Off
Signal Low (Unit On)
Active Low
Signal High (Unit Off)
Signal Low (Unit Off)
Active High
Signal High (Unit On)
Current Sink
-
When Remote On/Off pin is
open, for active low option, unit
is off; for active high option, unit
is on
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 Vdc Input, 1.2 Vdc - 12 Vdc / 15 A - 3 A Outputs, 1/16 Brick Converter
Output Trim Equations
Equations for calculating the trim resistor are shown below (Unit: kΩ). 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.
1) Trim Equations for Vo=1.2 V
Vout
Rtrimdown =
511
− 10.22
delta
Module
Trim
GND
Rtrimup =
Rtrimdown
(100 + delta ) ⋅ Vo ⋅ 5.11 − 313
− 10.22
0.6125 ⋅ delta
Vout
Note:
delta =
(Vo _ req − Vo ) × 100[% ]
Vo
Module
Trim
Rtrimup
GND
Vo_req=Desired (trimmed) output voltage [V] Vo=1.202 V
2) Trim Equations for Vo=1.5 V - 12 V
Rtrimdown =
Rtrimup =
Note:
511
− 10.22
delta
(100 + delta ) ⋅ Vo ⋅ 5.11 − 626
− 10.22
1.225 ⋅ delta
delta =
(Vo _ req − Vo ) × 100 [% ]
Vo
Vo_req=Desired (trimmed) output voltage [V]
Vo=1.503 V for 1.5 V output; Vo=1.804 V for 1.8 V output; Vo=2.505 V for 2.5 V output; Vo=3.308 V for 3.3 V
output; Vo=5.002 V for 5 V output; Vo=12.007 V for 12 V 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 Vdc Input, 1.2 Vdc - 12 Vdc / 15 A - 3 A Outputs, 1/16 Brick Converter
90%
90%
85%
85%
80%
36V
48V
75V
75%
70%
65%
EFFICIENCY
EFFICIENCY
Efficiency Data
80%
36V
48V
75V
75%
70%
65%
60%
60%
55%
55%
50%
50%
1.5A
3.75A
7.5A
11.25A
1.3A
15A
3.25A
OUTPUT CURRENT (A)
9.75A
13A
Vo=1.5 V
90%
90%
85%
85%
80%
36V
48V
75V
75%
70%
65%
EFFICIENCY
EFFICIENCY
Vo=1.2 V
80%
36V
48V
75V
75%
70%
65%
60%
60%
55%
55%
50%
50%
1.3A
3.25A
6.5A
9.75A
1.8A
13A
4.5A
9A
12.A
18A
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
Vo=1.8 V
Vo=2.5 V
90%
90%
85%
85%
80%
36V
48V
75V
75%
70%
65%
EFFICIENCY
EFFICIENCY
6.5A
OUTPUT CURRENT (A)
80%
75%
65%
60%
60%
55%
55%
50%
36V
48V
75V
70%
50%
1A
2.5A
5A
7.5A
OUTPUT CURRENT (A)
10A
0.7A
1.75A
3.5A
5.25A
7A
OUTPUT CURRENT (A)
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 Vdc Input, 1.2 Vdc - 12 Vdc / 15 A - 3 A Outputs, 1/16 Brick Converter
Vo=3.3 V
Vo=5.0 V
Efficiency Data (continued)
90%
EFFICIENCY
85%
80%
75%
36V
48V
75V
70%
65%
60%
55%
50%
0.3A
0.75A
1.5A
2.25A
3A
OUTPUT CURRENT (A)
Vo=12 V
Thermal Derating Curves
Vin=48 V, Vo=1.2 V
Vin=48 V, Vo=1.8 V
Vin=48 V, Vo=1.5 V
Vin=48 V, Vo=2.5 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
48 Vdc Input, 1.2 Vdc - 12 Vdc / 15 A - 3 A Outputs, 1/16 Brick Converter
Thermal Derating Curves (continued)
Vin=48 V, Vo=3.3 V
Vin=48 V, Vo=5.0 V
Vin=48 V, Vo=12 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
48 Vdc Input, 1.2 Vdc - 12 Vdc / 15 A - 3 A Outputs, 1/16 Brick Converter
Ripple and Noise Waveforms
Vo=1.2 V
Vo=1.8 V
Vo=3.3 V
Vo=1.5 V
Vo=2.5 V
Vo=5.0 V
Vo=12 V
Note: Ripple and noise at full load, 48 V input, with a 1 uF ceramic capacitor and a 10 uF tantalum cap at the
output, and Ta=25 deg C.
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 Vdc Input, 1.2 Vdc - 12 Vdc / 15 A - 3 A Outputs, 1/16 Brick Converter
Transient Response Waveforms
Vo=1.2 V 50% to 25% Load Transients
Vo=1.5 V 50% to 25% Load Transients
Vo=1.2 V 25% to 50% Load Transients
Vo=1.5 V 25% to 50% Load Transients
Vo=1.8 V 50% to 25% Load Transients
Vo=1.8 V 25% to 50% Load Transients
Vo=2.5 V 50% to 25% Load Transients
Vo=2.5 V 25% to 50% Load Transients
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 Vdc Input, 1.2 Vdc - 12 Vdc / 15 A - 3 A Outputs, 1/16 Brick Converter
Transient Response Waveforms (continued)
Vo=3.3 V 50% to 25% Load Transients
Vo=5.0 V 50% to 25% Load Transients
Vo=12 V 50% to 25% Load Transients
Vo=3.3 V 25% to 50% Load Transients
Vo=5.0 V 25% to 50% Load Transients
Vo=12 V 25% to 50% Load Transients
Note: Transient Response at Vin=48 V, di/dt=0.1A/uS, with external 220 uF tantalum capacitor and 1 uF ceramic
capacitor, and Ta=25 deg C.
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 Vdc Input, 1.2 Vdc - 12 Vdc / 15 A - 3 A Outputs, 1/16 Brick Converter
Mechanical Outline
SMT Package
Pin Connections
Pin
Function
1
Vin (+)
2
Remote On/Off
3
Vin (-)
4
Vout-
5
Remote Sense (-)
6
Trim
7
Remote Sense (+)
8
Vout (+)
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 Vdc Input, 1.2 Vdc - 12 Vdc / 15 A - 3 A Outputs, 1/16 Brick Converter
Mechanical Outline (continued)
Through Hole Package
Pin Connections
Pin
1
2
3
4
5
6
7
8
Function
Vin (+)
Remote On/Off
Vin (-)
VoutRemote Sense (-)
Trim
Remote Sense (+)
Vout (+)
RoHS Compliance
Complies with the European Directive 2002/95/EC, calling for the elimination of lead and
other hazardous substances from electronic products.
©2008 Bel Fuse Inc. Specifications subject to change without notice. 022708
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