BEL XRP2

NON-ISOLATED DC/DC CONVERTERS
5 Vdc - 13.8 Vdc Input
0.6 Vdc - 5 Vdc/50 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Nov. 02, 2010
xRP2-50E3A0
RoHS Compliant
PRELIMINARY Rev.A
Features
•
Non-Isolated
•
Wide Input Voltage Range (5Vdc-13.8Vdc)
•
High Efficiency
•
Output Voltage Trim (0.6Vdc-5Vdc)
•
Fixed Switching Frequency
•
Output Overvoltage Shut Down
•
Power Good Signal
•
OCP/SCP
•
Low Output Ripple
•
Excellent Thermal Performance
•
Remote On/Off
•
Low Cost
•
Class 1, Category 2, Non-Isolated DC/DC Converter (refer to IPC-9592)
Applications
•
Networking
•
Computers and peripherals
•
Telecommunications
Description
The xRP2-50E3A0 is a non-isolated dc/dc converter that operates over a wide range of input voltage (VIN = 5
Vdc-13.8 Vdc). This unit can provide a precisely regulated output voltage from 0.6 Vdc to 5.0 Vdc and can deliver
up to 50 A of output current. This unit is designed to be highly efficient and low cost. The converter is provided in
an industry standard package.
Part Selection
Output
Voltage
0.6 V - 5 V
Input
Voltage
5 V - 13.8 V
Max. Output
Current
50 A
Max. Output
Power
250 W
Typical Efficiency
(Vo=1.8 Vdc)
88.8%
Model Number
Active High
VRP2-50E3A0
Model Number
Active High
0RP2-50E3A0
Notes: Add “G” suffix at the end of the model number to indicate Tray Packaging.
Part Number Explanation
V R P2 – 50 E 3A 0
1 2
3
4
5 6
7
1---Vertical mount, change “V” to “0” means through hole mount
2---RoHS 6, change “R” to “7” means RoHS 5
3---Series name, SIP
4---Series code, 50A output
5--- Wide input range (5-13.8V)
6---Wide output range (0.6-5V)
7---Enable, active high
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
1
NON-ISOLATED DC/DC CONVERTERS
5 Vdc - 13.8 Vdc Input
0.6 Vdc - 5 Vdc/50 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Nov. 02, 2010
Absolute Maximum Ratings
Min
Typ
Max
Unit
Continuous Input Voltage
-0.3
-
15
V
Remote On/Off
-0.3
-
15
V
Ambient Temperature
0
-
70
°C
Storage Temperature
-55
-
125
°C
Parameter
Notes
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
Vo≤ 2.8 V
Vo > 2.8 V
Min
Typ
Max
Unit
5
1.8*Vo
12
12
13.8
13.8
V
V
Input Current (full load)
-
-
32.0
A
Input Current (no load)
-
200
400
mA
Remote Off Input Current
-
30
50
mA
Input Reflected Ripple Current
(rms)
-
5
8
mA
Input Reflected Ripple Current
(pk-pk)
-
20
35
mA
I t Inrush Current Transient
-
-
1
As
Turn-on Voltage Threshold
-
4.6
4.8
V
Turn-off Voltage Threshold
3.9
4.1
-
V
2
Notes
With simulated source impedance of
10 uH, 5 Hz to 20 MHz. Use a
1000 uF/16 V electrolytic capacitor
with ESR=0.1 ohm max, at 100 kHz at
25°C.
2
Note: All specifications are typical at 25 °C unless otherwise stated.
Output Specifications
Parameter
Output Voltage Set Point
Min
Typ
Max
Unit
Notes
-1.5
-10
-
+1.5
+10
%Vo
mV
Vin=Vinmin, Io=Iomax
Vo≥2.5 V
Vo<2.5 V
-
-
0.6
12
%Vo
mV
Vo≥2.5 V
Vo<2.5 V
-
-
0.3
9
%Vo
mV
-
-
0.02
%Vo/C
-
55
50
50
50
40
25
110
100
100
90
80
60
mV
mV
mV
mV
mV
mV
Vo≥1 V
Vo<1 V
Load regulation
Line Regulation
Regulation Over Temperature
(-40 deg.C-85deg.C)
Ripple and Noise (pk-pk)
Vo=5.0 V
Vo=3.3 V
Vo=2.5 V
Vo=1.8 V
Vo=1.2 V
Vo=0.6 V
Test conditions:
0-20MHz BW, with a 1µF ceramic
capacitor 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
2
NON-ISOLATED DC/DC CONVERTERS
5 Vdc - 13.8 Vdc Input
0.6 Vdc - 5 Vdc/50 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Nov. 02, 2010
Output Specifications (continued)
Parameter
Min
Typ
Max
Unit
Notes
-
10
12
12
12
10
8
30
35
25
25
25
25
mV
mV
mV
mV
mV
mV
Ripple and Noise (pk-pk)
under worst case
-
-
150
mV
Output Current Range
0
-
50
A
Output DC Current Limit
55
65
75
A
Rise Time
1
-
2
mS
-
4
7
mS
Enable form Vin
-
4
7
mS
Enable form ON/OFF
Overshoot at Turn on
-
0
3
%
Output Capacitance
0
-
4700
uF
Ripple and Noise (rms)
Vo=5.0 V
Vo=3.3 V
Vo=2.5 V
Vo=1.8 V
Vo=1.2 V
Vo=0.6 V
Turn on Time
Test conditions:
0-20MHz BW, with a 1µF ceramic
capacitor and a 10 uF Tantalum cap at
output.
over all operating input voltage, load
and ambient temperature condition
Transient Response
△V50%~100%
Overshoot
-
200
300
mV
of Max Load
Settling Time
-
50
100
uS
△V100%~50%
Overshoot
-
200
300
mV
of Max Load
Settling Time
-
50
100
uS
Test conditions:
di/dt=2.5A/us, Vin=12Vdc, Vo=1.5Vdc,
Ta=25°C, with a 1µF ceramic
capacitor and a 10uF Tantalum cap at
output.
Note: All specifications are typical at nominal input, full load at 25°C unless otherwise stated.
General Specifications (continued)
Parameter
Min
Typ
Max
Unit
92
86
72
94.2
88.8
74
-
%
%
%
Switching Frequency
-
330
-
kHz
Over Voltage Protection
-
125
130
%Vo
Weight
-
25
-
g
Notes
Efficiency
Vo=5.0 V
Vo=1.8 V
Vo=0.6 V
Dimensions
Inches (L × W × H)
Millimeters (L × W × H)
Dimensions
Inches (L × W × H)
Millimeters (L × W × H)
Vin=12V, full load
1.45 x 1.1 x 0.783
36.83 x 27.94 x 19.89
-
Through Hole Mount
0RP2-50E3A0
1.45 x 1.1 x 0.743
36.83 x 27.94 x 18.87
-
Vertical Mount
VRP2-50E3A0
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
3
NON-ISOLATED DC/DC CONVERTERS
5 Vdc - 13.8 Vdc Input
0.6 Vdc - 5 Vdc/50 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Nov. 02, 2010
Efficiency Data
Efficiency Curve Vo=1.2 V
95.0%
85.0%
80.0%
75.0%
70.0%
65.0%
90.0%
5V
12 V
13.8 V
Efficiency
Efficiency
Efficiency Curve Vo=0.6 V
12 V
75.0%
13.8 V
65.0%
60.0%
5
12.5
25
37.5
50
5
12.5
25
37.5
Output Current (A)
Output Current (A)
Efficiency Curve Vo=1.8 V
Efficiency Curve Vo=2.5 V
95.0%
100.0%
90.0%
95.0%
85.0%
5V
12 V
80.0%
75.0%
Efficiency
Efficiency
5V
80.0%
70.0%
60.0%
55.0%
50.0%
13.8 V
50
90.0%
5V
85.0%
12 V
80.0%
70.0%
75.0%
65.0%
70.0%
13.8 V
65.0%
60.0%
5
12.5
25
37.5
5
50
25
37.5
Output Current (A)
Efficiency Curve Vo=3.3 V
Efficiency Curve Vo=5.0 V
100.0%
100.0%
95.0%
95.0%
90.0%
6V
85.0%
12 V
80.0%
13.8 V
70.0%
65.0%
65.0%
Output Current(A)
37.5
50
12 V
80.0%
70.0%
25
9V
85.0%
75.0%
12.5
50
90.0%
75.0%
5
12.5
Output Current(A)
Efficiency
Efficiency
85.0%
13.8 V
5
12.5
25
37.5
50
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
4
NON-ISOLATED DC/DC CONVERTERS
5 Vdc - 13.8 Vdc Input
0.6 Vdc - 5 Vdc/50 A Output
Nov. 02, 2010
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Ripple and Noise Waveforms
12 Vdc input, 0.6 Vdc/50 A output
12 Vdc input, 1.2 Vdc/50 A output
12 Vdc input, 1.8 Vdc/50 A output
12 Vdc input, 2.5 Vdc/50 A output
12 Vdc input, 3.3 Vdc/50 A output
12 Vdc input, 5.0 Vdc/50 A output
Note: Ripple and noise at full load, 12 Vdc input 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
5
NON-ISOLATED DC/DC CONVERTERS
5 Vdc - 13.8 Vdc Input
0.6 Vdc - 5 Vdc/50 A Output
Nov. 02, 2010
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Transient Response Waveforms
Vout= 0.6 V 0%-50% Load Transient
Vout=0.6 V 50%-0% Load Transient
Vout=1.2 V 0%-50% Load Transient
Vout=1.2 V 50%-0% Load Transient
Vout=1.8 V 0%-50% Load Transient
Vout=1.8 V 50%-0% Load Transient
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
6
NON-ISOLATED DC/DC CONVERTERS
5 Vdc - 13.8 Vdc Input
0.6 Vdc - 5 Vdc/50 A Output
Nov. 02, 2010
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Transient Response Waveforms (continued)
Vout= 2.5 V 0%-50% Load Transient
Vout=2.5 V 50%-0% Load Transient
Vout=3.3 V 0%-50% Load Transient
Vout=3.3 V 50%-0% Load Transient
Vout=5 V 0%-50% Load Transient
Vout=5 V 50%-0% Load Transient
Note: Transient response at Vin=12 V, di/dt =2.5 A/uS, 1uF ceramic cap and 10uF aluminum cap at 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
7
NON-ISOLATED DC/DC CONVERTERS
5 Vdc - 13.8 Vdc Input
0.6 Vdc - 5 Vdc/50 A Output
Nov. 02, 2010
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Startup & Shutdown
Rise Time
Test Condition: 12Vdc input, 5Vdc/50A output, Ta=25 deg C
Startup time
Startup from Vin
Ch1: Vo
Ch2: Vin
Test Condition:
12Vdc input, 5Vdc/50A output, Ta=25 deg C
Startup from on/off
Ch1: Vo
Ch2: on/off
Test Condition:
12Vdc input, 5Vdc/50A output, Ta=25 deg C
Shutdown
Test Condition: 12Vdc input, 5Vdc/0A 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
8
NON-ISOLATED DC/DC CONVERTERS
5 Vdc - 13.8 Vdc Input
0.6 Vdc - 5 Vdc/50 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Nov. 02, 2010
Control Specifications
Parameter
Min
Typ
Max
Unit
Notes
Remote On/Off (Active High)
Signal Low (Unit Off)
-0.3
-
0.8
V
Signal High (Unit On)
2
-
Vin,max
V
Current Source/Sink
0
-
3.3
mA
Remote On/Off pin is open, unit is off.
Recommended remote on/off circuit for active high
V cc
Vin +
Vin+
Vc c
O n/o ff
On/off
V in-
Vin-
Control with open collector/drain circuit
Control with photocoupler circuit
Vin+
Vin+
On/off
On/off
V cc
Vin-
Vin-
Control with logic circuit
Permanently on
Output Trim Equations
Equations for calculating the trim resistor are shown below. The Trim Up resistor should be connected between
the Trim+ pin and Trim- pin.
Maximum duty cycle is 65%.
Minimum trim down voltage is 0.6V
Maximum trim up voltage is 5V.
The total voltage increased by trim and remote sense should not exceed 10% of the nominal output voltage.
The resistor trim equation:
R trim
Vout
1.2
=
(K Ω )
Vo − 0.6
Module
Trim+
Rtrim
Trim–
The voltage trim equation:
Trim+
Rtrim2 =
Rtrim1 (1.2 − 2Vtrim )
Rtrim1 (Vo − 0.6) −1.2
Rtrim2
(KΩ)
Vtrim
-
+
Rtrim1
Trim-
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
9
NON-ISOLATED DC/DC CONVERTERS
5 Vdc - 13.8 Vdc Input
0.6 Vdc - 5 Vdc/50 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Nov. 02, 2010
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. It 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.
RS+
Vo+
Sense+
Load
RS-
Sense-
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.
RS+
V o+
Sense+
Load
RS-
Sense-
Vo-
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
10
NON-ISOLATED DC/DC CONVERTERS
5 Vdc - 13.8 Vdc Input
0.6 Vdc - 5 Vdc/50 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Nov. 02, 2010
Over Current Protection
To provide protection in a fault output overload condition, the module is equipped with internal current-limiting
circuitry and can endure current limiting for a few mili-seconds. If the over current condition persists beyond a few
milliseconds, the module will shut down into hiccup mode and restart once every 12mS. The module operates
normally when the output current goes into specified range. The typical average output current is 3A during
hiccup.
Vout= 0.6V, [email protected]=25℃
Vout= 5.0V, [email protected]=25℃
Expansion of on time portion of above figure
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
11
NON-ISOLATED DC/DC CONVERTERS
5 Vdc - 13.8 Vdc Input
0.6 Vdc - 5 Vdc/50 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Nov. 02, 2010
Input Under-voltage Lockout
Input Current
Under-voltage Lockout
Voltage Falling
V1=4.1V
V2=4.6V
Voltage Rising
V1
V2
Input Voltage (V)
Power Good
1. This module has a power good indicator output. Power good pin used positive logic and is open collector.
2. Power good pin can sink 10mA.
3. The maximum voltage pulled up externally on Power Good pin should not exceed 5.3V.
4. When the output reaches 90% of the nominal set-point, the power good pin will be pulled high.
Typical Start-up Using Remote ON/OFF
Vin=12.0V, Vout=0.6V, Io=50A
CH1: Output Voltage
CH3: PG
Typical Start-up Using Remote ON/OFF
Vin=12.0V, Vout=5V, Io=50A
CH1: Output Voltage
CH3: PG
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
12
NON-ISOLATED DC/DC CONVERTERS
5 Vdc - 13.8 Vdc Input
0.6 Vdc - 5 Vdc/50 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Nov. 02, 2010
Mechanical Outline
0RP2-50E3A0
Pin Connections
Pin
Function
Pin
Function
1
2
3
4
5
6
7
8
Vout
Vout
Vout
9
10
11
12
13
14
15
PwGOOD
SenseSense+
Vin
Vin
GND
GND
GND
GND
Enable
TrimTrim+
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
13
NON-ISOLATED DC/DC CONVERTERS
5 Vdc - 13.8 Vdc Input
0.6 Vdc - 5 Vdc/50 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Nov. 02, 2010
Mechanical Outline (continued)
VRP2-50E3A0
Pin Connections
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Function
Vout
Vout
Vout
GND
GND
Enable
TrimTrim+
PwGOOD
SenseSense+
Vin
Vin
GND
GND
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
14
NON-ISOLATED DC/DC CONVERTERS
5 Vdc - 13.8 Vdc Input
0.6 Vdc - 5 Vdc/50 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Nov. 02, 2010
Revision History
Date
Version
2010-11-02
PA
Changes Detail
Approval
First release
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. 110210
15
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