BEL 0RQB

ISOLATED DC/DC CONVERTERS
48 Vdc Input
12 Vdc /18 A Output
0RQB-D0T12x
•
RoHS Compliant
•
Fixed Frequency (300 kHz)
Rev.B
Output Over Voltage Latch Off
•
Isolated
•
Over Temperature Protection
•
High Efficiency
•
SCP/OCP
•
High Power Density
•
Low Cost
•
Input Under Voltage Lockout
•
Remote On/Off
•
Basic Insulation
Description
The 0RQB-D0T12x are isolated dc/dc converters that operate from a nominal 48 Vdc source. These units will
provide up to 216 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, input under-voltage and output over voltage
protection. These converters are provided in an industry standard quarter brick package.
Part Selection
Output
Voltage
12 Vdc
Input Voltage
36 Vdc - 75 Vdc
Max. Output
Current
18 A
Max. Output
Power
216 W
Typical
Efficiency
92.5%
Model Number
Active High
0RQB-D0T120
Model Number
Active Low
0RQB-D0T12L
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 (continuous)
Remote On/Off
Min
-0.3 V
-0.3 V
Typ
-
Max
80 V
18 V
I/O Isolation Voltage
Ambient Temperature
Storage Temperature
-40 °C
-55 °C
-
2250 V
85 °C
125 °C
Notes
Note: All specifications are typical at 25 °C unless otherwise stated.
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)
Min
36 V
-
Typ
48 V
110 mA
4 mA
Max
75 V
200 mA
7A
7 mA
-
20 mA
-
-
5 mA
-
I t Inrush Current Transient
-
TBD
-
Turn-on Voltage Threshold
Turn-off Voltage Threshold
31 V
34 V
33 V
35 V
-
2
Notes
With simulated source impedance of 12
uH, 5 Hz to 20 MHz; use a 220uF/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
48 Vdc Input
12 Vdc /18 A Output
Output Specifications
Parameter
Min
Typ
Max
11.76 V
12 V
12.24 V
Line Regulation
-
20 mV
-
Load Regulation
Regulation Over Temperature
(-40 °C to 85 °C)
Output Current
-
30 mV
-
-
0.02%Vo/℃
-
0A
-
18 A
Current Limit Threshold
19 A
21 A
27 A
Ripple and Noise (rms)
-
30 mV
50 mV
Ripple and Noise (pk-pk)
-
85 mV
150 mV
Turn on Time
-
10 mS
-
Overshoot at Turn on
-
0%
5%
Output Capacitance
-
-
6000 uF
Output Voltage Set Point
Notes
Vin=48 V, Io=100%Load
0 - 20 MHz BW, with 1 uF
ceramic load capacitor and a
10uF Tantalum capacitor at the
output
Transient Response
50% ~ 75%
Max Load
75% ~ 50%
Max Load
Overshoot
-
300 mV
600 mV
Settling Time
-
100 uS
200 uS
-
300 mV
600 mV
-
100 uS
200 uS
Overshoot
VO=12 V
Settling Time
di/dt=0.1A/us, Vin=48Vdc,
Ta=25 °C, with 1 uF
ceramic capacitor and a
10uF Tantalum capacitor
at the output.
Note: All specifications are typical at nominal input, full load at 25 °C unless otherwise stated.
General Specifications
Parameter
Min
Typ
Max
89%
92.5%
-
Switching Frequency
270 kHz
300 kHz
330 kHz
Isolation Capacitance
-
3000 pF
-
Input to Output Isolation Voltage
-
-
2250 V
Remote Sense Compensation
-
-
10%
90%
-
110%
-
130 ℃
-
13.5 V
-
15 V
Efficiency
Output Voltage Trim Range
Over Temperature Protection
Over Voltage Protection
MTBF
Notes
Vin=48 V, full load
The voltage increased by trim and
sense should not exceed 110%Vout.
Vin=48 V, Io=full load, Latch mode
Calculated Per Bell Core SR-332
(Vin=48 V, Vo=12 V, Io=14.4 A,
300LFM forced air flow,Ta = 25 °C)
1,632,203 hours
Dimensions
Inches (L × W × H)
Millimeters (L × W × H)
Weight
2.30 x 1.45 x 0.394
58.42 x 36.83 x 10.00
-
48 g
-
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 Vdc Input
12 Vdc /18 A Output
Control Specifications
Parameter
Remote On/Off
Signal Low (Unit On)
Signal High (Unit Off)
Signal Low (Unit Off)
Signal High (Unit On)
Active Low
Active High
Min
Typ
Max
-0.3 V
-
0.8 V
2.4 V
-
18 V
-0.3 V
-
0.8 V
2.4 V
-
18 V
Notes
The Remote On/Off pin is open,
Unit off.
The Remote On/Off pin is open,
Unit on
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 pin. Only one of the resistors should be used for any given application.
Rtrimdown =
Rtrimup =
Note:
delta =
Vout
511
− 10.22[kΩ]
delta
Module
Trim
GND
(100 + delta ) ⋅ Vo ⋅ 5.11 − 625
− 10.22[kΩ]
1.225 ⋅ delta
Rtrimdown
Vout
Module
(Vo _ req − Vo ) × 100[%]
Trim
Rtrimup
GND
Vo
Output voltage Vo=12.004 V
Efficiency Data
96.0%
EFFICIENCY
94.0%
92.0%
90.0%
36 V
48 V
75 V
88.0%
86.0%
84.0%
82.0%
80.0%
1.8A
4.5A
9A
13.5A
18A
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
12 Vdc /18 A Output
Thermal Derating Curve
Vin=48V, with maximum junction temperature of semiconductors derated to 120℃.
Ripple and Noise Waveform
Note: Ripple and noise at full load, 48 Vdc input, 12 Vdc/18 A output, and with a 1 uF ceramic cap and a 10 uF
tantalum cap at the output, 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
12 Vdc /18 A Output
Transient Response Waveforms
Vout= 12 V 50%-75% Load Transients at Vin=48 [email protected]=25℃
Vout= 12 V 75%-50% Load Transients at Vin=48 [email protected]=25℃
Note: Transients response at di/dt=0.1 A/us, Vin=48 Vdc, Ta=25 °C, with 1 uF ceramic capacitor and a 10uF
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
12 Vdc /18 A Output
Mechanical Outline
Pin Connections
Pin
Function
Pin Size
1
2
3
4
5
6
7
8
Vin(+)
On/Off
Vin(-)
Vo(-)
RS(-)
Trim
RS(+)
Vo(+)
0.040’’
0.040’’
0.040’’
0.062’’
0.040’’
0.040’’
0.040’’
0.062’’
RoHS Compliance
Complies with the European Directive 2002/95/EC, calling for the elimination of lead and
other hazardous substances from electronic products.
©2007 Bel Fuse Inc. Specifications subject to change without notice. 121107
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