BEL 0RLC

ISOLATED DC/DC CONVERTERS
18 Vdc - 75 Vdc Input
0RLC-10U05x
5 Vdc/2 A Output
RoHS Compliant
PRELIMINARY
Rev.C
•
Isolated
•
Remote On/Off
•
Fixed Frequency
•
Input Under/Over Voltage Lockout
•
High Efficiency
•
Output Over-Voltage Shut Down
•
High Power Density
•
SCP/OCP
•
Output Voltage Trim
•
Excellent Thermal Performance
•
Low Cost
•
Over Temperature Protection
•
Pre-Bias Start Up
•
Basic Insulation
Description
The 0RLC-10U05x is an isolated dc/dc converter that operates from a nominal 48 Vdc source. This unit provides
up to 10 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 a 1"x2" package.
Part Selection
Output
Voltage
5 Vdc
Input Voltage
18 Vdc - 75 Vdc
Max. Output
Current
2A
Max. Output
Power
10 W
Typical
Efficiency
83%
Model Number
Active High
0RLC-10U050
Model Number
Active Low
0RLC-10U05L
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)
Min
-0.3 V
Typ
-
Max
80 V
I/O Isolation Voltage
Notes
-
-
1500 V
Ambient Temperature
-40 °C
-
85 °C
Storage Temperature
-55 °C
-
125 °C
Input Specifications
Parameter
Input Voltage
Min
18 V
Typ
-
Max
75 V
Input Current
-
-
0.8 A
Input Current (no load)
-
-
50 mA
Input Reflected Ripple Current
(pk-pk)
-
-
30 mA
Turn-on Input Voltage
-
-
18 V
Turn-off Input Voltage
16 V
-
-
Notes
With simulated source impedance of
10 uH, 5 Hz to 20 MHz, use a 47 uF/
100 V electrolytic capacitor with
ESR=1 ohm max, at 200 kHz.
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
18 Vdc - 75 Vdc Input
5 Vdc/2 A Output
Output Specifications
Parameter
Min
Typ
Max
4.925 V
5.0 V
5.075 V
Line Regulation
-
-
0.5%Vo
Load Regulation
-
-
1%Vo
Temperature Regulation
(-40 °C to +85 °C)
-
-
0.02%Vo/C
Ripple and Noise (pk-pk)
-
-
60 mV
0A
-
2A
2.3 A
-
3.5 A
-
-
50 mS
-
-
30 mS
Vinnom, Ionom, resistive load
-
-
30 mS
Vinnom, Ionom, capacitive load
0 uF
-
1000 uF
Output Voltage Set Point
Output Current
Current Limit Threshold
Turn on Time
Rise Time
Output Capacitance
Notes
Vin=48 V, IO=50% full load
0-20 MHz BW, with a 1uF ceramic
cap and a 10 uF Tantalum cap at
output
Transient Response
50% ~ 100%
Max Load
Overshoot
-
-
200 mV
-
-
100 uS
Vo=5 V
Settling Time
di/dt=0.1 A/us, Vin=48 V,
with a 10 tantalum cap and a
1uF ceramic cap at the
output.
Note: All specifications are typical at nominal input, full load at 25°C unless noted.
General Specifications
Parameter
Min
Typ
Max
80%
83%
-
Switching Frequency
270 kHz
300 kHz
330 kHz
Isolation Capacitance
-
1500 pF
-
90%
-
110%
-
125 °C
-
Efficiency
Output Voltage Trim Range
Over Temperature Protection
MTBF
Notes
Measured at Vin=48 V, full load
Calculated Per Bell Core SR-332 (IO = 80%
IO max; Vin=48 V; Vo=5 V; Ta = 25 °C)
TBD
Dimensions
Inches (L × W × H)
Millimeters (L × W × H)
Weight
2.0 x 1.0 x 0.475
50.8 x 25.4 x 12.05
-
12 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
18 Vdc - 75 Vdc Input
5 Vdc/2 A Output
Control Specifications
Parameter
Min
Typ
Max
Notes
Remote On/Off
Signal Low (Unit On)
Active Low
Signal High (Unit Off)
Signal Low (Unit Off)
Active High
Signal High (Unit On)
Signal High (Unit On)
-0.3 V
-
0.8 V
2.4 V
-
18 V
-0.3 V
-
0.8 V
2.4 V
-
18 V
0 mA
-
0.75 mA
The remote on/off pin open, Unit
Off.
The remote on/off pin open, Unit
On.
Output Trim Equations
Equations for calculating the trim resistor (in kohm) given the desired adjusted voltage (Vadj) and the nominal
output voltage of the converter (Vo) are shown below. The Trim Down resistor should be connected between the
Trim pin and Vout. The Trim Up resistor should be connected between the Trim pin and Ground. Only one of the
resistors should be used for any given application.
Vout
Rtrim_down :=
6.25
( Vo − Vadj_down)
Rtrim-down
− 2.5
Module
Trim
GND
Rtrim_up :=
6.25
Vout
Vadj_up − Vo
Module
Trim
Rtrim-up
GND
Output voltage Vo=5.01 V
Efficiency Data
Efficiency
Efficiency Curve
90%
88%
86%
84%
82%
80%
78%
76%
74%
72%
70%
0.50
18 V
24 V
48 V
75 V
1.00
1.50
2.00
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
18 Vdc - 75 Vdc Input
5 Vdc/2 A Output
Thermal Derating Curve
Vin=48 V, with maximum junction temperature of semiconductors derated to 120 degree C.
Ripple and Noise Waveform
48 Vdc input, 5.0 Vdc/2 A output
Note: Ripple and noise at full load, with a 1uF ceramic cap and a 10 uF Tantalum cap at output, Ta=25 deg C.
Transient Response Waveform
Vo= 5V 50%-100%-50% Load Transients at Vin=48 [email protected]=25℃ Vo= 5V 100%-50% Load Transients at Vin=48 [email protected]=25℃
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
18 Vdc - 75 Vdc Input
5 Vdc/2 A Output
Mechanical Outline
Pin Connections
Pin
Function
Pin Size
1
Vin+
0.040’’
2
Vin-
0.040’’
3
On/Off
0.040’’
4
V o+
0.040’’
5
Trim
0.040’’
6
Vo-
0.040’’
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. 012508
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