NON-ISOLATED DC/DC CONVERTERS
5 Vdc - 13.8 Vdc Input Nov. 02, 2010 0.6 Vdc - 5 Vdc/50 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
RoHS Compliant
• • • • • •
xRP2-50E3A0 Features
• • • • • • • Non-Isolated High Efficiency
PRELIMINARY Rev.A
Wide Input Voltage Range (5Vdc-13.8Vdc) Output Voltage Trim (0.6Vdc-5Vdc) Output Overvoltage Shut Down OCP/SCP Excellent Thermal Performance Low Cost
Fixed Switching Frequency Power Good Signal Low Output Ripple Remote On/Off
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
12 3 4 56 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 Nov. 02, 2010 0.6 Vdc - 5 Vdc/50 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Min -0.3 -0.3 0 -55 Typ Max 15 15 70 125 Unit V V °C °C Notes
Absolute Maximum Ratings
Parameter Continuous Input Voltage Remote On/Off 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 Vo≤ 2.8 V Vo > 2.8 V 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 5 1.8*Vo 3.9
Typ 12 12 200 30 5 20 4.6 4.1
Max 13.8 13.8 32.0 400 50 8 35 1 4.8 -
Unit V V A mA mA mA mA As V 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.
Note: All specifications are typical at 25 °C unless otherwise stated.
Output Specifications
Parameter Output Voltage Set Point Vo≥1 V Vo<1 V Load regulation Vo≥2.5 V Vo<2.5 V Line Regulation Vo≥2.5 V Vo<2.5 V 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 55 50 50 50 40 25 110 100 100 90 80 60 mV mV mV mV mV mV Test conditions: 0-20MHz BW, with a 1µF ceramic capacitor and a 10 uF Tantalum cap at output. 0.3 9 0.02 %Vo mV %Vo/C 0.6 12 %Vo mV Min -1.5 -10 Typ Max +1.5 +10 Unit %Vo mV Notes Vin=Vinmin, Io=Iomax
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 Nov. 02, 2010 0.6 Vdc - 5 Vdc/50 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Min Vo=5.0 V Vo=3.3 V Vo=2.5 V Vo=1.8 V Vo=1.2 V Vo=0.6 V 0 55 1 Typ 10 12 12 12 10 8 65 4 4 0 Max 30 35 25 25 25 25 150 50 75 2 7 7 3 4700 Unit mV mV mV mV mV mV mV A A mS mS mS % uF Enable form Vin Enable form ON/OFF Notes Test conditions: 0-20MHz BW, with a 1µF ceramic capacitor and a 10 uF Tantalum cap at output.
Output Specifications (continued)
Parameter Ripple and Noise (rms)
Ripple and Noise (pk-pk) under worst case Output Current Range Output DC Current Limit Rise Time Turn on Time Overshoot at Turn on Output Capacitance Transient Response
△V50%~100%
over all operating input voltage, load and ambient temperature condition
0
Overshoot Settling Time Overshoot Settling Time
-
200 50 200 50
300 100 300 100
mV uS mV uS
of Max Load
△V100%~50%
of Max Load
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 Efficiency Vo=5.0 V Vo=1.8 V Vo=0.6 V Switching Frequency Over Voltage Protection Weight Dimensions Inches (L × W × H) Millimeters (L × W × H) Dimensions Inches (L × W × H) Millimeters (L × W × H) 1.45 x 1.1 x 0.783 36.83 x 27.94 x 19.89 1.45 x 1.1 x 0.743 36.83 x 27.94 x 18.87 92 86 72 94.2 88.8 74 330 125 25 130 % % % kHz %Vo g Through Hole Mount 0RP2-50E3A0 Vertical Mount VRP2-50E3A0 Vin=12V, 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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NON-ISOLATED DC/DC CONVERTERS
5 Vdc - 13.8 Vdc Input Nov. 02, 2010 0.6 Vdc - 5 Vdc/50 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Efficiency Data
Efficiency Curve Vo=0.6 V 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 55.0% 50.0% 5 12.5 25 37.5 50 Output Current (A)
95.0% 90.0% Efficiency 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 5
Efficiency Curve Vo=1.2 V
Efficiency
5V 12 V 13.8 V
5V 12 V 13.8 V
12.5
25
37.5
50
Output Current (A)
Efficiency Curve Vo=1.8 V 95.0% 90.0% Efficiency 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 5 12.5 25 37.5 50 Output Current(A) 5V 12 V 13.8 V
100.0% 95.0%
Efficiency Curve Vo=2.5 V
Efficiency
90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 5 12.5 25 37.5 50 5V 12 V 13.8 V
Output Current (A)
Efficiency Curve Vo=3.3 V 100.0% 95.0%
Efficiency Curve Vo=5.0 V 100.0% 95.0% Efficiency 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 5 12.5 25 37.5 50 9V 12 V 13.8 V
6V 12 V 13.8 V
Efficiency
90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 5 12.5 25 Output Current(A) 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
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NON-ISOLATED DC/DC CONVERTERS
5 Vdc - 13.8 Vdc Input Nov. 02, 2010 0.6 Vdc - 5 Vdc/50 A Output
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 Nov. 02, 2010 0.6 Vdc - 5 Vdc/50 A Output
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 Nov. 02, 2010 0.6 Vdc - 5 Vdc/50 A Output
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 Nov. 02, 2010 0.6 Vdc - 5 Vdc/50 A Output
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 Shutdown
Startup from on/off Ch1: Vo Ch2: on/off Test Condition: 12Vdc input, 5Vdc/50A output, Ta=25 deg C
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 Nov. 02, 2010 0.6 Vdc - 5 Vdc/50 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Min -0.3 2 0 Typ Max 0.8 Vin,max 3.3 Unit V V mA Remote On/Off pin is open, unit is off. Notes
Control Specifications
Parameter Remote On/Off (Active High) Signal Low (Unit Off) Signal High (Unit On) Current Source/Sink
Recommended remote on/off circuit for active high
Vin+
V cc
Vin +
Vc c
O n/o ff
On/off
V in-
Vin-
Control with open collector/drain circuit
Vin+
V cc
Control with photocoupler circuit
Vin+
On/off
On/off
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:
Vout Module Trim+ Rtrim Trim–
R trim
1 .2 = (K Ω ) Vo − 0.6
The voltage trim equation:
Trim+
Rtrim2 =
Rtrim1 (Vo − 0.6) −1.2
Rtrim1 (1.2 − 2Vtrim )
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 Nov. 02, 2010 0.6 Vdc - 5 Vdc/50 A Output
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. 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.
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
10
NON-ISOLATED DC/DC CONVERTERS
5 Vdc - 13.8 Vdc Input Nov. 02, 2010 0.6 Vdc - 5 Vdc/50 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
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, Vin=12V@Ta=25℃
Vout= 5.0V, Vin=12V@Ta=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 Nov. 02, 2010 0.6 Vdc - 5 Vdc/50 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Input Under-voltage Lockout
Under-voltage Lockout
Input Current
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 Nov. 02, 2010 0.6 Vdc - 5 Vdc/50 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Mechanical Outline 0RP2-50E3A0
Pin Connections
Pin 1 2 3 4 5 6 7 8 Function Vout Vout Vout GND GND Enable TrimTrim+ Pin 9 10 11 12 13 14 15 Function PwGOOD SenseSense+ Vin Vin GND GND
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 Nov. 02, 2010 0.6 Vdc - 5 Vdc/50 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
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 Nov. 02, 2010 0.6 Vdc - 5 Vdc/50 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Revision History
Date 2010-11-02 Version 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. 110210
15
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