ISOLATED DC/DC CONVERTERS
18 Vdc - 60 Vdc Input 12 Vdc /16 A Output Nov. 17, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
PRELIMINARY Rev.A
0RQB-D0N12x RoHS Compliant
• • • • • • • • • Isolated Fixed Frequency (280 kHz) High Efficiency High Power Density Low Cost Input Under-voltage Lockout Input Over-voltage Lockout • • • • • •
Output Over-voltage Protection Over Temperature Protection OCP /SCP Remote On/Off Basic Isolation Baseplate
Class 1, Category 2, Isolated DC/DC Converter (refer to IPC-9592) UL60950-1 Recognized (UL/cUL) (Pending)
Applications
• • • Networking Computers and peripherals Telecommunications
Description
The 0RQB-D0N12x is an isolated dc/dc converter that operates from a nominal 48 Vdc source. This unit will provide up to 192 W of output power from a nominal 24 Vdc or 48 Vdc input. This unit is designed to be highly efficient and low cost. Features include remote on/off, over current protection and overvoltage protection. The converter is provided in an industry standard quarter brick package.
Part Selection
Output Voltage 12 Vdc Input Voltage 18 Vdc - 60Vdc Max. Output Current 16 A Max. Output Power 192 W Typical Efficiency ( Vin=48 Vdc ) 94% Model Number Active Low 0RQB-D0N12L Model Number Active High 0RQB-D0N120
Note: Add “G” suffix at the end of the model number to indicate Tray Packaging.
Part Number Explanation 0 R QB – D0 N 12 x
12 3 4 567
1---Through hole 2---RoHS 6, change “R” to “7” means RoHS 5 3---Series name 4---Series code 5---Input range (18-60V) 6---Output voltage (12V) 7---Suffix
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
18 Vdc - 60 Vdc Input 12 Vdc /16 A Output Nov. 17, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Min -0.3 -0.3 -40 -55 Typ Max 60 100 18 1500 85 125 Unit V V V V °C °C Non-operating 100 mS maximum Notes
Absolute Maximum Ratings
Parameter Continuous Input Voltage Input Transient Voltage Remote On/Off I/O Isolation Voltage Ambient Temperature Storage Temperature
Note: Ratings used beyond the maximum ratings may cause a reliability degradation of the converter or may permanently damage the device.
Input Specifications
Parameter Operating Input Voltage Input Current (full load) Input Current (no load) Remote Off Input Current Input Reflected Ripple Current (rms) Input Reflected Ripple Current (pk-pk) I t Inrush Current Transient Turn-on Voltage Threshold Turn-off Voltage Threshold
2
Min 18 16 15
Typ 48 200 5 5 30 0.05 16.8 15.8
Max 60 12 240 10 10 40 0.1 17.5 16.5
Unit V A mA mA mA mA As V V
2
Notes
With simulated source impedance of 10uH, 5Hz to 20MHz. Use a 100uF/100V electrolytic capacitor with ESR=1 ohm max, at 200KHz@25°C.
CAUTION: This converter is not internally fused. An input line fuse must be used in application. Recommend a fast-acting fuse with maximum rating of 20A on system board. Refer to the fuse manufacture’s datasheet for further information. Notes: 1. This converter has internal C-L-C (1uF-0.2uH-1uF-2.2uF*5) filter. 2. All specifications are typical at 25 °C unless otherwise stated.
Output Specifications
Parameter Output Voltage Set Point Load Regulation Line Regulation Regulation Over Temperature (-40deg.C-85deg.C) Ripple and Noise (pk-pk) Ripple and Noise (rms) Ripple and Noise (pk-pk) under worst case Output Current Range Min 11.92 0 Typ 12 ±20 ±10 ±100 100 25 Max 12.08 ±50 ±20 ±200 150 40 200 16 Unit V mV mV mV mV mV mV A Vin=48V, Full load, 0-20MHz BW, with a 1µF ceramic capacitor and a 10uF Tantalum cap at output. Over all operating input voltage, load and ambient temperature condition Notes Vin=48V, Io=50% load
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
18 Vdc - 60 Vdc Input 12 Vdc /16 A Output Nov. 17, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Min 18 Typ 22 10 30 30 0 Max 25 5 40 40 3 2200 Unit A As ms ms ms % uF Added additional capacitor to decrease ripple and transient response value. Enable form Vin Enable form ON/OFF
2
Output Specifications (continued)
Parameter Output DC Current Limit Short Circuit Surge Transient Rise time Turn on Time Overshoot at Turn on Output Capacitance Transient Response
△V50%~75% of
Notes
220
Overshoot Settling Time Overshoot Settling Time
-
400 120 400 120
600 200 600 200
mV uS mV uS di/dt=0.1A/us, Vin=48Vdc, Ta=25°C, with a 1µF ceramic capacitor and a 10uF Tantalum cap at output.
Max Load
△V75%~50% of
Max Load
Note: All specifications are typical at nominal input, full load at 25°C unless otherwise stated.
General Specifications
Parameter Efficiency Vin=24V Vin=48V Switching Frequency Over Temperature Protection Over Voltage Protection Weight FIT Dimensions Inches (L × W × H) Millimeters (L × W × H) Isolation characteristics Input to Output Input to Case Output to Case Isolation Resistance Isolation Capacitance 10M 1500 1500 1500 500 V V V ohm pF 2.30 x 1.45 x 0.50 58.42 x 36.83 x 12.70 92.5 93 93.5 94 280 125 15.1 75 TBD 130 15.5 % % kHz °C V g Calculated Per Bell Core SR-332 (Vin=48V, Vo=48V, Io=8A, Ta = 25 °C, 9 FIT=10 /MTBF) This voltage is achieved by trimming up output slowly. Io=Io, max, full load Min Typ Max Unit Notes
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
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ISOLATED DC/DC CONVERTERS
18 Vdc - 60 Vdc Input 12 Vdc /16 A Output Nov. 17, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Efficiency Data
99.00% 97.00% 95.00% 93.00% 91.00% 89.00% 87.00% 85.00% 83.00% 81.00% 79.00% 77.00% 7 5.00%
00 00 00 00 0 0 0 .0 .0 2. 4. 6. 8. .0 14 10 12 16 .0 0
EFFICIENCY
18 V 24 V 36 V 48 V 60 V
OUTPUT CURRENT(A)
Ripple and Noise Waveform
48Vdc input, 12Vdc/16A 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.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
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ISOLATED DC/DC CONVERTERS
18 Vdc - 60 Vdc Input 12 Vdc /16 A Output Nov. 17, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Transient Response Waveforms
Vout= 12V 50%-75% Load Transients
Vout= 12V 75%-50% Load Transients
Note: Transient Response at Vin=48V, di/dt=0.1A/uS, with a 1uF ceramic cap and a 10uF aluminum cap at the output.
Startup & Shutdown
Rise Time
Vin = 24 V, Full Load Maximum capacitor
Vin = 48 V, Full Load Maximum capacitor
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
18 Vdc - 60 Vdc Input 12 Vdc /16 A Output Nov. 17, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Startup & Shutdown (continued)
Startup time
Startup from on/off Ch1: Vo Ch3: on/off Vin = 24 V, Full Load Maximum capacitor
Startup from on/off Ch1: Vo Ch3: on/off Vin = 48 V, Full Load Maximum capacitor
Shutdown
Vin = 24 V, Full Load
Vin = 48 V, Full Load
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
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ISOLATED DC/DC CONVERTERS
18 Vdc - 60 Vdc Input 12 Vdc /16 A Output Nov. 17, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Min -0.3 2.4 -0.3 2.4 0 Typ Max 0.8 18 0.8 18 1 Unit V V V V mA Notes 0RQB-D0N12L The remote on/off pin open, Unit off. 0RQB-D0N120 The remote on/off pin open, Unit on.
Remote On/Off
Parameter Signal Low (Unit On) Signal High (Unit Off) Signal Low (Unit Off) Signal High (Unit On) Current Sink Active Low Active High
Recommended remote on/off circuit for active low
Vin+ On/off
Vin+
On/off
Vin-
Vin-
Control with open collector/drain circuit
Vin+
Vcc
Control with photocoupler circuit
Vin+
On/off
On/off
Vin-
Vin-
Control with logic circuit
Permanently on
Recommended remote on/off circuit for active high
Vin+
Vin+
On/off
On/off
Vin-
Vin-
Control with open collector/drain circuit
Vin+
Vcc
Control with photocoupler circuit
Vin+
On/off
On/off
Vin-
Vin-
Control with logic circuit
Permanently on
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
18 Vdc - 60 Vdc Input 12 Vdc /16 A Output Nov. 17, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Output Trim Equations
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 (+). Only one of the resistors should be used for any given application. Minimum trim down voltage is 10.8V Maximum trim up voltage is 13.2V. The total voltage increased by trim and remote sense should not exceed 10% of the nominal output voltage.
Sense(+)
Rtrimdown =
511 − 10.22[kΩ ] delta
Module
Trim Rtrimdown Sense(-)
Sense(+)
(100+ delta ⋅ Vo⋅ 5.11− 626 ) Rtrimup= −10.22[kΩ] 1.225⋅ delta
Rtrimup Module Trim Sense(-)
Note:
delta =
(Vo _ req − Vo) ×100[%]
Vo
Vo_req=Desired (trimmed) output voltage [V] Output voltage Vo=12.036 V
600 R trim _ d ow n (K o hm )
25 00 R trim _up (K o hm ) 20 00 15 00 10 00 5 00 0
480 360 240 120 0 1 0 .8
1 1. 0 4
11 .2 8 1 1 .5 2 V o ,ad j (V)
1 1. 7 6
12
12
1 2.24
1 2.48 12 .7 2 Vo,adj (V)
1 2 .96
1 3.2
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
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ISOLATED DC/DC CONVERTERS
18 Vdc - 60 Vdc Input 12 Vdc /16 A Output Nov. 17, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Remote Sense
This module has remote sense compensation feature. It can minimize the effects of resistance between module’s output and load in system layout and facilitates accurate voltage regulation at load terminals or other selected point. 1. The remote sense lines carries very little current and hence do not require a large cross-sectional area. 2. This module compensates for a maximum drop of 10% of the nominal output voltage. 3. If the unit is already trimmed up, the available remote sense compensation range should be correspondingly reduced. The total voltage increased by trim and remote sense should not exceed 10% of the nominal output voltage. 4. When using remote sense compensation, all the resistance, parasitic inductance and capacitance of the system are incorporated within the feedback loop of this module. The can make an effect on the module's compensation, affecting the stability and dynamic response. A 0.1uF ceramic capacitor can be connected at the point of load to de-couple noise on the sense wires. 5. Recommend the connection of remote sense compensation as below figure. There are a resistor RS+ (100 ohm) from Vo+ to Sense+ and a resistor RS- (51 ohm)) from Vo- to Sense- inside of this module.
Vo+
RS+
Sense+ Load SenseRS-
V o-
6. If not using remote sense compensation, please connect sense directly to output at module's pin, that is, connect sense+ to Vo+ and sense- to Vo- at module's pin, the shorter the better. See below figure.
V o+
RS+
Sense+ Load SenseRS-
Vo-
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
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ISOLATED DC/DC CONVERTERS
18 Vdc - 60 Vdc Input 12 Vdc /16 A Output Nov. 17, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Input Under-voltage Lockout
Input Current
Under-voltage Lockout
Voltage Falling
V1=15.8V V2=16.8V
Voltage Rising
V1
V2
Input Voltage (V)
Fundamental Circuit Diagram
1 8
4
3
2
Control Isolated Feedback
7
5 6
Choke Capacitor Resistor
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
10
ISOLATED DC/DC CONVERTERS
18 Vdc - 60 Vdc Input 12 Vdc /16 A Output Nov. 17, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Mechanical Outline
Pin Connections
pin# 1 2 3 4 5 6 7 8 function Vin (+) On/Off Vin(-) Vout(-) RSTrim RS+ Vout(+) pin size 0.04" 0.04" 0.04" 0.06" 0.04" 0.04" 0.04" 0.06"
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
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ISOLATED DC/DC CONVERTERS
18 Vdc – 60Vdc Input 12 Vdc /16 A Output Nov. 17, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Revision History
Date 2010-11-17
Revision PA First release
Changes Detail
Approval 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.
©2010 Bel Fuse Inc. Specifications subject to change without notice. 111710
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CORPORATE Bel Fuse Inc. 206 Van Vorst Street Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com FAR EAST 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 EUROPE 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