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0RPF-20A1AB

型号：

0RPF-20A1AB

品牌：

BEL[ BEL FUSE INC. ]

页数：

11 页

PDF大小：

391 K

下载PDF手册
NON-ISOLATED DC/DC CONVERTERS  
12 Vdc Input  
0.9 Vdc - 5.0 Vdc/20 A Output  
xRPF-20A1Ax  
RoHS Compliant  
Rev.E  
•
•
•
•
•
Non-Isolated  
•
•
Wide Trim Range  
Fixed Frequency (275 kHz)  
High Efficiency  
Converter Can Sink and Source  
Current  
High Power Density  
•
•
•
OCP/SCP  
Power Good Output Signal (open  
collector)  
Remote On/Off  
Low Cost  
•
Under-Voltage Lockout (UVLO)  
Description  
The Bel xRPF-20A1Ax is a new high density open frame non-isolated converter series for space sensitive  
applications. Each model has a wide input range (10.2 Vdc - 13.8 Vdc) and offers a wide range of output voltage  
(0.9 Vdc - 5.0 Vdc) with a 20 A load. An external resistor adjusts the output voltage from its pre-set value of 0.9  
Vdc to any value up to the 5.0 Vdc maximum. Typical efficiency is 92% at Vo=5 Vdc, Vin=12 Vdc at full load.  
Typical features include remote on/off, under-voltage lockout, over-current protection and short circuit protection.  
Part Selection  
Output  
Input  
Voltage  
Max. Output  
Current  
Max. Output  
Power  
Typical  
Efficiency  
Model Number  
Vertical Mount  
Model Number  
Horizontal Mount  
Voltage  
0.9 V - 5.0 V  
0.9 V - 5.0 V  
12 V  
12 V  
20 A  
20 A  
100 W  
100 W  
92%  
92%  
VRPF-20A1A0  
VRPF-20A1AB  
0RPF-20A1A0  
0RPF-20A1AB  
Notes: 1. Add “G” suffix at the end of the model number to indicate Tray Packaging.  
2. “B” suffix version has both a filtered Power Good signal and the ability to have a Power Good signal  
pull up as low as 0.9 V (lowest programmable output voltage).  
3. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers.  
Absolute Maximum Ratings  
Parameter  
Min  
Typ  
Max  
Notes  
Input Voltage (continuous)  
-0.3 V  
-
13.8 V  
Output Enable Terminal Voltage  
Ambient Temperature  
-0.3 V  
0 °C  
-
-
-
13.8 V  
80 °C  
Storage Temperature  
-40 °C  
125 °C  
Input Specifications  
Parameter  
Min  
Typ  
Max  
Notes  
Input Voltage  
10.2 V  
-
13.8 V  
Input Current (Source)  
Vo=5.0 V  
Vo=2.5 V  
Vo=0.9 V  
-
-
-
9.1 A  
4.9 A  
2.2 A  
-
-
-
Input Current (Sink)  
Able to sink 20 A output current at any  
output voltage up to and including 2.5  
V.  
Vo=2.5 V  
Vo=0.9 V  
-
-
-3.44 A  
-0.97 A  
-
-
Input Current (No Load)  
Remote Off Input Current  
-
-
95 mA  
5 mA  
-
10 mA  
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com  
NON-ISOLATED DC/DC CONVERTERS  
12 Vdc Input  
0.9 Vdc - 5.0 Vdc/20 A Output  
Input Specifications (continued)  
Parameter  
Min  
Typ  
Max  
Notes  
Input Reflected Ripple Current (pk-pk)  
Vo=5.0 V  
Vo=3.3 V  
Vo=2.5 V  
Vo=0.9 V  
-
-
-
-
280 mA  
250 mA  
200 mA  
150 mA  
350 mA  
320 mA  
280 mA  
250 mA  
Tested with simulated source  
impedance of 1.5 uH 5Hz to 20 MHz,  
and 2 × 270 uF/16 V Oscon  
capacitors (ESR ≤ 20 mΩ) at the  
input  
Input Reflected Ripple Current (rms)  
Vo=5.0 V  
Vo=3.3 V  
Vo=2.5 V  
Vo=0.9 V  
-
-
-
-
80 mA  
70 mA  
45 mA  
40 mA  
120 mA  
100 mA  
80 mA  
60 mA  
External Input Capacitance  
Turn-on Voltage Threshold  
Turn-off Voltage Threshold  
-
540 uF  
9.0 V  
-
8.5 V  
7.0 V  
9.5 V  
8.3 V  
7.6 V  
Note: All specifications are typical at 25 °C unless otherwise stated.  
Output Specifications  
Parameter  
Min  
Typ  
Max  
Notes  
Output Voltage Set Point  
-2.5%Vo,set  
-
2.5%Vo,set Vin=12 V, lo=lomax, full load  
Over all operating input voltage, resistive  
load, and temperature conditions  
Output Voltage Set Point  
Load Regulation  
-3.5%Vo,set  
-
3.5%Vo,set  
Vo=5.0 V  
Vo=3.3 V  
Vo=2.5 V  
Vo=0.9 V  
-
-
-
-
-
-
-
-
0.4%Vo,set  
0.4%Vo,set Io=Iomin to Iomax  
0.5%Vo,set  
1%Vo,set  
Line Regulation  
-
-
0.5%Vo,set Vin=Vinmin to Vinmax  
Output Ripple and Noise (pk-pk)  
Vo=5.0 V  
Tested at 0-20 MHz BW, with a  
-
-
-
-
65 mV  
60 mV  
55 mV  
45 mV  
80 mV  
75 mV  
70 mV  
55 mV  
680 uF/6.3 V Oscon capacitor (ESR ≤ 12  
mΩ), 10uF/16V Tantalum capacitor, and  
10nF ceramic capacitor at the output.  
Vo=3.3 V  
Vo=2.5 V  
Vo=0.9 V  
Output Ripple and Noise (rms)  
Vo=5.0 V  
-
-
-
-
18 mV  
15 mV  
15 mV  
10 mV  
25 mV  
25 mV  
20 mV  
15 mV  
Vo=3.3 V  
Vo=2.5 V  
Vo=0.9 V  
Output Current  
0 A  
25 A  
-
-
-
-
20 A  
Current Limit Threshold  
Short Circuit Surge Transient  
40 A  
0.1 A2s  
Turn on Time  
-
-
5 mS  
10 mS  
3%Vo  
Overshoot at Turn on  
0%Vo  
Output Capacitance  
Vo=5.0 V  
680 uF  
680 uF  
680 uF  
-
-
-
5080 uF  
7840 uF  
11000 uF  
Vo=2.5 V  
Vo=0.9 V  
Transient Response  
-
-
-
-
50% ~ 75% Max Load  
100 mV  
40 uS  
150 mV  
80 uS  
di/dt=2.5 A/uS; Vin=12 V; with a 680 uF/6.3  
V Oscon capacitor (ESR ≤ 12 mΩ),  
10 uF/16 V Tantalum capacitor and 10 nF  
ceramic capacitor at the output.  
Settling Time  
75% ~ 50% Max Load  
Settling Time  
VO=0.9 V-  
5.0 V  
100 mV  
40 uS  
150 mV  
80 uS  
Note: All specifications are typical at nominal input, full load 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  
NON-ISOLATED DC/DC CONVERTERS  
12 Vdc Input  
0.9 Vdc - 5.0 Vdc/20 A Output  
General Specifications  
Parameter  
Min  
Typ  
Max  
Notes  
Efficiency (Current Source)  
Vo=5.0 V  
89%  
86%  
83%  
65%  
92%  
89%  
86%  
69%  
-
-
-
-
Vo=3.3 V  
Vo=2.5 V  
Vo=0.9 V  
Measured at Vin=12 V, full load.  
Efficiency (Current Sink)  
Switching Frequency  
Vo=2.5 V  
Vo=0.9 V  
79%  
60%  
240 kHz  
82%  
63%  
275 kHz  
-
-
310 kHz  
Output Voltage Trim Range  
0.9 V  
-
5.0 V  
Vo=0.9 V when the Trim pin is open.  
Calculated Per Bell Core SR-332 (IO =  
Nominal; Ta = 25 °C)  
MTBF  
5,570,000 hours  
Dimensions  
VRPF-20A1Ax  
Inches (L × W × H)  
1.2 x 1.1 x 0.457  
Millimeters (L × W × H)  
30.48 x 27.94 x 11.6  
Dimensions  
0RPF-20A1Ax  
Inches (L × W × H)  
1.2 x 1.1 x 0.508  
30.48 x 27.94 x 12.91  
15 g  
Millimeters (L × W × H)  
Weight  
-
-
Note: All specifications are typical at 25 °C unless otherwise stated.  
Control Specifications  
Parameter  
Min  
Typ  
Max  
Notes  
Remote On/Off pin open, unit on.  
xRPF-20A1AB  
Remote On/Off  
Signal Low (Unit Off)  
Signal High (Unit On)  
Power Good  
-0.3 V  
2.4 V  
-
-
0.8 V  
13.8 V  
Power Good Levels  
Power Good Delay 1  
0.9 V  
-
-
-
-
20 mS  
Notes: All specifications are typical at 25 °C unless otherwise stated.  
1. The power good signal is an open collector output. When the output of the module reaches 90% of the  
nominal set point, the power good pin is set high.  
Output Trim Equations  
Equation for calculating the trim resistor (in kΩ) given the desired adjusted voltage (Vadj) is shown below. The  
Trim Up resistor should be connected between the Trim pin and Ground. Trim values should not be less than  
280Ω.  
Vout  
1.17  
ModuleTrim  
Rtrim =  
Rtrim  
Vadj − 0.9  
GND  
Equation for calculating the trim voltage (in V) given the desired adjusted voltage (Vadj) is shown below. The  
Trim Up voltage should be connected between the Trim pin and Ground.  
Vout  
Rs×(1.3Vt −1.17)  
1.17 − Rs× (Vadj − 0.9)  
Rt  
Module  
Trim  
Rt =  
Vt  
Rs  
GND  
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com  
NON-ISOLATED DC/DC CONVERTERS  
12 Vdc Input  
0.9 Vdc - 5.0 Vdc/20 A Output  
Efficiency Data  
5.0V Vout(SOURCE)  
93.0%  
90.0%  
87.0%  
84.0%  
81.0%  
78.0%  
10.2V  
12.0V  
13.8V  
2.0  
5.0  
10.0  
15.0  
20.0  
Output Current (A)  
2.5V Vout(SOURCE)  
91.0%  
88.0%  
85.0%  
82.0%  
79.0%  
76.0%  
73.0%  
10.2V  
12.0V  
13.8V  
2.0  
5.0  
10.0  
15.0  
20.0  
Output Current (A)  
0.9V Vout(SOURCE)  
85.0%  
80.0%  
75.0%  
70.0%  
65.0%  
60.0%  
55.0%  
50.0%  
10.2V  
12.0V  
13.8V  
2.0  
5.0  
10.0  
15.0  
20.0  
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  
NON-ISOLATED DC/DC CONVERTERS  
12 Vdc Input  
0.9 Vdc - 5.0 Vdc/20 A Output  
Thermal Derating Curves  
Vo=5 V; Vin=12 V  
Vo=2.5 V; Vin=12 V  
Vo=0.9 V; Vin=12 V  
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com  
NON-ISOLATED DC/DC CONVERTERS  
12 Vdc Input  
0.9 Vdc - 5.0 Vdc/20 A Output  
Ripple and Noise Waveforms  
12 V input, 5.0 V output  
12 V input, 2.5 V output  
12 V input, 0.9 V output  
Note: Ripple and noise at full load, 0-20MHz BW, with 680 uF/6.3 V Oscon cap, 10 uF/16 V Tan cap and 10 nF  
ceramic cap at the 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  
NON-ISOLATED DC/DC CONVERTERS  
12 Vdc Input  
0.9 Vdc - 5.0 Vdc/20 A Output  
Transient Response Waveforms  
75% to 50% load step, 5.0 Vdc output  
50% to 75% load step, 5.0 Vdc output  
50% to 75% load step, 2.5 Vdc output  
50% to 75% load step, 0.9 Vdc output  
75% to 50% load step, 2.5 Vdc output  
75% to 50% load step, 0.9 Vdc output  
Note: Transient response at di/dt=2.5 A/uS, with a 680 uF/6.3 V Oscon cap, a 10 uF/16 V Tan cap and a 10 nF  
ceramic cap at the 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  
NON-ISOLATED DC/DC CONVERTERS  
12 Vdc Input  
0.9 Vdc - 5.0 Vdc/20 A Output  
Power Good (PG) Waveforms for xRPF-20A1AB  
Vpu (External pull up voltage )  
Rext  
PG Signal  
Vc(t)  
1. Cint is fixed, Cint=100 pF  
2. Rext and Cext can be  
ajusted by customer.  
Cint  
C
ex t  
IL (Load on  
PG signal )  
3. IL is the load on PG signal  
GND  
t
−
Rext *(Cint +Cext  
)
Vc(t) = (Vpu − IL * Rext ) − (Vpu − IL * Rext )*e  
Typical Start-up Using Remote ON/OFF  
(Vin=12.0 V, Vout=0.9 V, Io=20 A)  
PG Ripple and Noise  
(Vin=12.0 V, Vout=0.9 V, Io=20 A)  
CH1:Output Voltage CH2:PG CH4:Remote ON/OFF  
Typical Start-up Using Remote ON/OFF  
(Vin=12.0 V, Vout=1.2 V, Io=20 A)  
PG Ripple and Noise  
(Vin=12.0 V, Vout=1.2 V, Io=20 A)  
CH1:Output Voltage CH2:PG CH4:Remote ON/OFF  
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com  
NON-ISOLATED DC/DC CONVERTERS  
12 Vdc Input  
0.9 Vdc - 5.0 Vdc/20 A Output  
Power Good (PG) Waveforms for xRPF-20A1AB (continued)  
Typical Start-up Using Remote ON/OFF  
(Vin=12.0 V, Vout=3.3 V, Io=20 A)  
PG Ripple and Noise  
(Vin=12.0 V, Vout=3.3 V, Io=20 A)  
CH1:Output Voltage CH2:PG CH4:Remote ON/OFF  
Typical Start-up Using Remote ON/OFF  
(Vin=12.0 V, Vout=5.0 V, Io=20 A)  
PG Ripple and Noise  
(Vin=12.0 V, Vout=5.0 V, Io=20 A)  
CH1:Output Voltage CH2:PG CH4:Remote ON/OFF  
Note: Waveforms above derived under the following conditions: Vpu=Vout, Rext=510 ohms, no external  
capacitor or load applied.  
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com  
NON-ISOLATED DC/DC CONVERTERS  
12 Vdc Input  
0.9 Vdc - 5.0 Vdc/20 A Output  
Mechanical Outline  
VRPF-20A1Ax  
Pin Connections  
Pin  
Function  
1
Vout  
Vout  
2
3
Vout  
4
Trim  
5
Remote On/Off  
Power Good  
Ground  
Ground  
Reserved  
Vin  
6
7
8
9
10  
11  
Vin  
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com  
NON-ISOLATED DC/DC CONVERTERS  
12 Vdc Input  
0.9 Vdc - 5.0 Vdc/20 A Output  
Mechanical Outline (continued)  
0RPF-20A1Ax  
Pin Connections  
Pin  
Function  
1
2
Vout  
Vout  
3
Vout  
4
Trim  
5
6
7
8
Remote On/Off  
Power Good  
Ground  
Ground  
Pwrgd_set  
Vin  
Vin  
Support Pin  
Support Pin  
9
10  
11  
12  
13  
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. 011708  
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  
厂商 型号 描述 页数 下载

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