概述
数据手册0RCY-50T124 概述
ISOLATED DC/DC CONVERTERS 隔离式DC / DC转换器
0RCY-50T124 数据手册
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PDF下载ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 12 Vdc /6 A Output
May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
0RCY-50T12x
Features
RoHS Compliant
Rev.E
Isolated
Over Temperature Protection
OCP/SCP
High Efficiency
High Power Density
Fixed Frequency (330 kHz)
Input Under-Voltage Lockout
Output Over-Voltage Shutdown
Pre-bias Start Up
Low Cost
Output Voltage Trim
Positive/Negative Remote Sense
Basic Insulation
Remote On/Off
UL60950-1 Recognized (UL/cUL) (Pending)
Applications
Networking
Computers and peripherals
Telecommunications
Description
The 0RCY-50T12x is isolated dc/dc converter that operates from a wide input range (36 Vdc - 75 Vdc). This unit
will provide up to 72 W of output power. The unit is designed to be highly efficient and low cost. Features include
remote on/off, over current protection, over voltage shut down, over temperature protection and under-voltage
lockout. This converter is provided in an industry standard 1/8 brick package.
Part Selection
Output
Input Voltage
Max. Output
Current
Max. Output
Power
Typical
Efficiency
Model Number
Active High
Model Number
Active Low
Voltage
12 Vdc
36 Vdc - 75 Vdc
6 A
72 W
92%
0RCY-50T12L
0RCY-50T120
Note: Add “G” suffix at the end of the model number to indicate Tray Packaging.
Part Number Explanation
0 R CY – 50 T 12 x
1
2
3
4
5
6
7
1---Through hole mount
2---RoHS 6, change “R” to “7” means RoHS 5
3---Series name
4---Series code
5---Input range (36-75V)
6---Output voltage (12V)
7---Option, “x” of the model part number to be 0-9, A-Z, which will represent the special request of
customer.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
1
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 12 Vdc /6 A Output
May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Absolute Maximum Ratings
Unit
Parameter
Min
Typ
Max
Notes
Input Voltage (continuous)
-0.3
-
80
V
Remote On/Off
-0.3
-
-
-
-
-
-
18
1500
-
V
V
I/O Isolation Voltage
Input to Each Output Resistance
Ambient Temperature
Storage Temperature
10M
-40
-55
ohm
C
85
125
C
Note: Ratings used beyond the maximum ratings may cause a reliability degradation of the converter or may
permanently damage the device.
Input Specifications
Parameter
Min
Typ
Max
Unit
Notes
Input Voltage
36
48
75
V
Max Input Current (full load)
Input Current (no load)
-
-
-
-
2.4
100
30
A
50
20
mA
mA
Remote Off Input Current
Tested with simulated source
impedance of 10 uH, 5 Hz to 20 MHz;
use a 47 uF/100 V electrolytic cap
with ESR = 1 ohm max. at 200 kHz at
25 C.
Input Reflected Ripple Current
(pk-pk)
-
-
20
-
30
mA
A2s
I2t Inrush Current Transient
0.1
Input Fuse (not internally)
Turn-on Voltage Threshold
Turn-off Voltage Threshold
Input Over Voltage Lockout
-
-
5
A
V
V
V
33
31
76
34
32
78
35
33
80
Note: All specifications are typical at 25 C unless otherwise stated.
Output Specifications
Parameter
Min
Typ
Max
Unit
Notes
Output Voltage Set Point
11.76
12.0
12.24
V
Load Regulation
line Regulation
-
-
-
±12
±12
±80
±24
±24
mV
mV
mV
Regulation Over Temperature
(-40deg.C-85deg.C)
±120
Vin=72V, max load on output,
20MHz BW, with 10uF tantalum
and 1uF ceramic cap at the output.
Ripple and Noise (rms)
Ripple and Noise (pk-pk)
Output Current Range
-
-
12
50
-
20
80
6
mV
mV
A
0
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 12 Vdc /6 A Output
May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Output Specifications (continued)
Parameter
Min
Typ
Max
Unit
Notes
Output DC Current Limit
7.0
-
10
A
Output Over Voltage Clamp
Turn on Time
13.6
-
15.6
80
V
Non-latching
-
-
50
30
-
mS
mS
uF
Rise Time
40
External Admissible Capacitive Load
Transient Response
0
1000
Overshoot
-
-
-
-
200
150
200
150
300
250
300
250
mV
uS
50% ~ 75%
Max Load
Settling Time
Vo=
di/dt=0.1 A/us, Vin=48 Vdc, Ta=25
°C, with a 1 µF ceramic cap and a
10 uF tantalum cap at output.
12V
Overshoot
mV
uS
75% ~ 50%
Max Load
Settling Time
Note: All specifications are typical at nominal input, full load at 25°C unless noted.
General Specifications
Parameter
Min
Typ
Max
Unit
Notes
Efficiency
90
92
-
%
Measured at Vin=48 V, full load
Switching Frequency
Isolation capacitance
310
-
330
350
-
kHz
pF
1500
The total voltage increased by trim and
remote sense should not exceed
10%Vo.
Remote Sense Compensation
-
-
10
%
Output Voltage Trim Range
Over Temperature Protection
Weight
9.6
-
13.2
V
C
g
-
-
120
40
-
-
Calculated Per Bell Core SR-332
(Io=80%load, Ta = 25 C)
MTBF
TBD
-
-
Dimensions
Inches (L × W × H)
2.30 x 0.896 x 0.490
Millimeters (L × W × H)
58.41 x 22.76 x 12.44
Note: All specifications are typical at 25 C unless otherwise stated.
Remote On/Off
Parameter
Min
Typ
Max
Unit
Notes
Signal Low (Unit On)
-0.3
-
0.8
V
0RCY-50T12L.
The remote on/off pin open, Unit off.
Active Low
Active High
Signal High (Unit Off)
Signal Low (Unit Off)
Signal High (Unit On)
Current Sink
2.4
-0.3
2.4
0
-
-
-
-
18
0.8
18
1
V
V
0RCY-50T120.
The remote on/off pin open, Unit on.
V
mA
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
3
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 12 Vdc /6 A Output
May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Output Trim Equations
Trim Resistor Calculate
Equations for calculating the trim resistor are shown below. The Trim Down resistor should be connected
between the Trim pin and Sense(-) pin. The Trim Up resistor should be connected between the Trim pin and the
Sense(+) pin. Only one of the resistors should be used for any given application.
Sense(+)
511
Module
Trim
Rtrimdown
10.22
k
delta
Rtrimdown
Rtrimup
Sense(-)
Sense(+)
Trim
(100 delta)Vo5.11 511
Rtrimup (
10.22) k
Module
1.225delta
delta
Sense(-)
Note:
Vo _ req Vo
delta
100
%
Vo
Vo_req=Desired (trimmed) output voltage [V]
Output voltage Vo=12 V
400
360
320
5000
4500
4000
3500
3000
2500
2000
1500
1000
500
280
240
200
160
120
80
40
0
0
12 12.12 12.24 12.36 12.48 12.6 12.72 12.84 12.96 13.08 13.2
Adjusted output voltage Vo,adj(V)
9.8 10.02 10.24 10.46 10.68 10.9 11.12 11.34 11.56 11.78 12
Adjusted output voltage Vo,adj (V)
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
4
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 12 Vdc /6 A Output
May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Output Trim Equations (continued)
Trim Voltage Calculate
Equations for calculating the trim voltage are shown below.
Vtrim is the required voltage between TRIM and Sense(-).
Sense(+)
Trim
Vo _ req
Vtrim (
2.464 1.24 )[V ]
Module
Vo
Sense(-)
Efficiency Data
Efficient Curve
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
36 V
48 V
75 V
0A
0.6A
1.5A
3A
4.5A
6A
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
5
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 12 Vdc /6 A Output
May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Ripple and Noise Waveforms
36 Vdc input, 12 Vdc/6 A output
48 Vdc input, 12 Vdc/6 A output
75 Vdc input, 12 Vdc/6 A output
Note: Ripple and noise at full load, 0-20 MHz BW, Ta=25 deg C, with a 0.1uF ceramic cap and a 10 uF Tantalum
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
6
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 12 Vdc /6 A Output
May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Thermal Derating Curve
Vin=48 V, with maximum junction temperature of semiconductors derated to 120 degree C.
Transient Response Waveforms
50%-75% Load
75%-50% Load
Note: Transients at Vin=48 V, di/dt=0.1 A/us@Ta=25℃
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
7
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 12 Vdc /6 A Output
May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Mechanical Outline
Pin Connections
Pin
Name
Function
Pin Dia
1
Vin+
0.040’’
Positive input voltage
Input to turn converter
on and off, referenced
to Vin-
2
On/Off
0.040’’
3
4
5
6
7
8
Vin-
Vout-
0.040’’
0.062’’
0.040’’
0.040’’
0.040’’
0.062’’
Negative input voltage
Negative output voltage
Negative remote sense
Output voltage trim
Positive output voltage
Positive output voltage
Sense-
Trim
Sense+
Vout+
Notes: 1. Pin 5 must be connected to Vout-.
2. Leave Pin 6 open for nominal voltage.
3. Pin 7 must be connected to Vout+.
Note: This module is recommended and compatible with Pb-Free Wave Soldering and must be soldered
using a peak solder temperature of no more than 260 ºC for less than 5 seconds.
Note:
1) All Pins: Material - Copper Alloy;
Finish – 3 micro inches minimum Gold over 50 micro inches minimum Nickel plate.
2) Undimensioned components are shown for visual reference only.
3) All dimensions in inches (mm); Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm) x.xxx +/-0.010 in. (x.xx +/-0.25mm).
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
8
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 12 Vdc /6 A Output
May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Revision History
Date
Revision
Changes Detail
Add trim equation for trim voltage.
Approval
2011-05-17
E
XF Jiang
RoHS Compliance
Complies with the European Directive 2002/95/EC, calling for the elimination of lead and
other hazardous substances from electronic products.
2011 Bel Fuse Inc. Specifications subject to change without notice. 051711
9
CORPORATE
FAR EAST
EUROPE
Bel Fuse Inc.
Bel Fuse Ltd.
Bel Fuse Europe Ltd.
206 Van Vorst Street
Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
8F/ 8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel 852-2328-5515
Fax 852-2352-3706
www.belfuse.com
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
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