VRPC-10AT5S [BEL]
NON-ISOLATED DC/DC CONVERTERS; 非隔离式DC / DC转换器
| 型号： | VRPC-10AT5S |
| 厂家： | 
BEL FUSE INC. |
| 描述： | NON-ISOLATED DC/DC CONVERTERS |
| 文件： | 总5页 (文件大小：113K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NON-ISOLATED DC/DC CONVERTERS
12 Vdc Input Vref/2 / 10 A Output
VRPC-10AT5x
RoHS Compliant
Rev.A
•
Non-Isolated
•
•
•
•
Remote On/Off
•
•
•
High Efficiency
High Power Density
Low Cost
Under-voltage Lockout (UVLO)
OCP/SCP
Remote Sense
Description
The VRPC-10AT5x is a non-isolated step down dc/dc converter that operates from a nominal 12 V source. This
converter is designed specifically to provide bus termination voltages in applications such as DDR (double data
rate) memory where the bus termination voltage must closely track the I/O bus voltage. The converter accepts a
reference input and uses this to program its output voltage to 50% of the reference. The unit is packaged in an
industry-standard single-in-line footprint and provides a maximum 10 A output. Standard features include remote
on/off, input under-voltage lockout, over current protection and remote sense. Replace “x” in the part number with
“S” or “A” depending on your specific application and specific external capacitor bank.
Part Selection
Max. Output
Current
Max. Output
Power
Typical
Efficiency
Output Voltage
Input Voltage
Model Number
VRPC-10AT5S
VRPC-10AT5A
Vref/2
Vref/2
12 V
12 V
10 A
10 A
25 W
25 W
82%
82%
Notes: 1. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers.
2. Add “G” suffix at the end of the model number to indicate “Tray Packaging”. See page 5 for model
number differences.
Absolute Maximum Ratings
Parameter
Input Voltage (continuous)
Output Enable Terminal Voltage
Ambient Temperature
Min
-0.3 V
-0.3 V
0 °C
Typ
Max
15 V
Notes
-
-
-
-
15 V
70 °C
100 °C
Storage Temperature
-40 °C
Input Specifications
Parameter
Min
Typ
Max
Notes
Input Voltage
10.8 V
-
-
13.2 V
2.1 A
Input Current (full load)
Input Current (no load)
Remote Off Input Current
-
-
-
-
50 mA
15 mA
3
Tested with a 470 uF/16 V input
capacitor with ESR=0.03 ohm max
at 100 kHz & simulated source
impedance of 500 nH, 5 Hz to 20
MHz.
Input Reflected Ripple Current (pk-pk)
-
-
180 mA
Input Reflected Ripple Current (rms)
I2t Inrush Current Transient
-
-
-
50 mA
0.08 A2s
0.16 A2s
Turn-on Voltage Threshold
Turn-off Voltage Threshold
-
9.7 V
8.8 V
-
8.0 V
10 V
Note: All specifications are tested at Vref =2.5 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 Vref/2 / 10 A Output
Output Specifications
Parameter
Min
Typ
Max
Notes
Output Voltage Set Point
0.98 (Vref/2) V
Vref/2 V
1.02 (Vref/2) V
Vin=12 V, Iout= full load
Load Regulation
Line Regulation
-
-
3 mV
3 mV
10 mV
10 mV
Regulation Over Temperature
-
5 mV
20 mV
(0 °C to 70 °C)
Output Current
0 A
13 A
-
-
10 A
25 A
Current Limit Threshold
-
Short Circuit Surge Transient
0.35 A2s
0.7 A2s
Test conditions:
0-20 MHz BW, 0.1 uF
ceramic capacitor at the
output
Output Ripple and Noise (pk-pk)
Output Ripple and Noise (rms)
-
-
45 mV
11 mV
100 mV
25 mV
Turn on Time
-
50 mS
80 mS
3%
Overshoot at Turn on
Output Capacitance
-
0%
-
470 uF
5600 uF
Transient Response
-50% ~ 50% Max Load
Settling Time
-
-
-
-
100 mV
150 mV
Test conditions:
40 uS
100 mV
40 uS
70 uS
150 mV
70 uS
di/dt = 0.1 A/uS; Vin = 12 V; with
a 470 uF electrolytic capacitor at
the output
VO= Vref/2 V
50% ~ -50% Max Load
Settling Time
Notes: 1. All specifications are typical at nominal input, full load at 25 °C unless otherwise stated.
2. All specifications are tested at Vref=2.5 V.
General Specifications
Parameter
Min
Typ
Max
Notes
Efficiency (Vin=12 V, Io=Io-max )
80%
82%
-
Switching Frequency
MTBF
180 kHz
200 kHz
220 kHz
Calculated Per Bell Core SR-332 (IO =
80% load; Vin=12 V; Ta = 25 °C)
3,403,119 hours
Dimensions
Inches (L × W × H)
Millimeters (L × W × H)
2.5 x 0.55 x 0.37
63.5 x 13.97 x 9.4
Remote sense compensation
Weight
-
-
-
0.5V
-
9.5 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
NON-ISOLATED DC/DC CONVERTERS
12 Vdc Input Vref/2 / 10 A Output
Control Specifications
Parameter
Min
Typ
Max
Notes
Remote On/Off
Signal Low (Unit Off)
Signal High (Unit On)
-0.3 V
2.8 V
-
-
0.3 V
13.2 V
Efficiency Data
Module 1.25V
90.0%
85.0%
80.0%
75.0%
70.0%
65.0%
60.0%
10.8V
12.0V
13.2V
1.0
3.0
5.0
7.0
9.0
OUTPUT CURRENT
Thermal Derating Curve
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 Vref/2 / 10 A Output
Ripple and Noise Waveform
Note: Ripple and noise at full load, 12 Vdc input and Ta=25 deg C.
Transient Response Waveforms
-50% to 50% load Transient at 12V input
50% to -50% load Transient at 12V input
Note: Transient response at di/dt=0.5 A/uS, with external load capacitance Co=470 uF(electrolytic),
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
NON-ISOLATED DC/DC CONVERTERS
12 Vdc Input Vref/2 / 10 A Output
Mechanicl Outline
Pin Connections
Pin
Function
1
Vo+
2
Vo+
Opt. Remote Sense (+)
Vo+
3
4
5
Ground
6
Ground
7
Vin+
8
Vin+
9
Not used
Vref
10
11
Remote On/Off
Model Number Description
VRPC-10AT5S: Designed to accept its reference input from a G7NB-81A180. For use with other reference
inputs, consult factory. Compensated for 1 x 560 uF Oscon external capacitor.
VRPC-10AT5A: Designed to accept its reference input from a V7XE-20AS20. For use with other reference
inputs, consult factory. Compensated for 12 x 100 uF ceramic in parallel with 2 X 820 uF Oscon in parallel with
16 X 4.7 uF ceramic.
RoHS Compliance
Complies with the European Directive 2002/95/EC, calling for the elimination of lead and
other hazardous substances from electronic products.
©2007 Bel Fuse Inc. Specifications subject to change without notice. 011907
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
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