NON-ISOLATED DC/DC CONVERTERS
8 Vdc - 14 Vdc Input 0.8 Vdc - 3.63 Vdc / 30 A Outputs May. 19, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
RoHS Compliant
• • • • •
VRBG-30A1A1 Features
• • • • • • Non-Isolated Fixed Frequency High Efficiency Wide Trim Low Cost Remote Sense
Rev.B
Input Under Voltage Lockout Over Temperature Shutdown Short Circuit Protection Remote On/Off Industrial Temperature Range
Applications
• • • Networking Computers and peripherals Telecommunications
Description
The Bel VRBG-30A1A1 is part of the non-isolated dc/dc converter Power Module series. The modules use a SIP package. These converters are available in a range of output voltages from 0.8 Vdc to 3.63 Vdc over a wide range of input voltage (Vin = 8 Vdc - 14 Vdc).The efficiency is typically 92.5% at 12 Vdc input and 3.3 Vdc output at full load.
Part Selection
Output Voltage 0.8 Vdc - 3.63 Vdc Input Voltage 8 Vdc - 14 Vdc Max. Output Current 30 A Max. Output Power 99 W Typical Efficiency 92.5% Model Number VRBG-30A1A1
Note: Add “G” or “R” suffix at the end of the model number to indicate Tray or Tape and Reel packaging.
Part Number Explanation V R BG – 30 A 1A 1
12 3 4 5 6 7
1---Vertical mount 2---RoHS 6, change “R” to “7” means RoHS 5 3---Series name 4---Series code (output current 30A) 5---Input range (8-14V) 6---Output voltage, wide trim 7---Suffix
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
8 Vdc - 14 Vdc Input 0.8 Vdc - 3.63 Vdc / 30 A Outputs May. 19, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Parameter Min -0.3 V -0.3 V -40 °C -55 °C Typ Max 15 V 15 V 85 °C 125 °C Notes
Absolute Maximum Ratings
Input Voltage (continuous) Output Enable Terminal Voltage Ambient Temperature Storage Temperature
Input Specifications
Parameter 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 8V -
Typ 12 V 300 mA 20 mA 6.7 V 6.3 V
Max 14 V 15 A 10 mA 40 mA 1As 2
Notes An input line fuse must always be used.
With a 1000 uF AL-Cap at the input.
Note: All specifications are typical at nominal input, full load at 25 °C unless otherwise stated.
Output Specifications
Parameter Output Voltage Set Point Line Regulation Load Regulation Temperature Regulation (-40 °C to +85 °C) Ripple and Noise (rms) Ripple and Noise (pk-pk) Output Current Short Circuit Surge Transient Turn on Time Overshoot at Turn On Output Capacitance Transient Response 50% ~ 75% Max Load 75% ~ 50% Max Load Overshoot Settling Time Overshoot Settling Time Vo=3.3 V 65 mV 20 uS 65 mV 20 uS 150 mV 45 uS 150 mV 45 uS di/dt=0.5 A/us, Vin=12 Vdc, with a 20 µF ceramic capacitor and a150 uF tantalum capacitor at the output. Min -1.5%Vo, set 0A 150 uF Typ 4 mA 15 mV 1A s 2 mS 2
Max 1.5%Vo, set 0.5%Vo, set 1.5%Vo, set 1%Vo, set 20 mV 100 mV 30 A 3A s 10 mS 5% 10000 uF
2
Notes Vin=12 V, IO=half load
0-20 MHz BW, with a 20 µF ceramic capacitor and a 150 uF tantalum capacitor at the output.
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
8 Vdc - 14 Vdc Input 0.8 Vdc - 3.63 Vdc / 30 A Outputs May. 19, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Min Vo=0.8 V Vo=1.8 V Vo=2.5 V Vo=3.3 V 0.8 V Typ 80% 88.5% 91% 92.5% 600 kHz 130 °C TBD Max 3.63 V 0.5 V Calculated Per Bell Core SR-332 (IO = Nominal; Ta = 25 °C) Notes Vin=12 V, full load
General Specifications
Parameter Efficiency
Switching Frequency Output Voltage Trim Range Over Temperature Shutdown Remote Sense Compensation MTBF Dimensions Inches (L × W × H) Millimeters (L × W × H) Weight
2.0 x 0.50 x 0.309 50.80 x 12.70 x 7.85 TBD -
Note: All specifications are typical at 25 °C unless otherwise stated.
Control Specifications
Parameter Remote On/Off Signal Low (Unit Off) Signal High (Unit On) -0.3 V 2.8 V 0.8 V Vin, max Remote on/off pin open, unit on Min Typ Max Notes
Output Trim Equations
Equations for calculating the trim resistor are shown below (Unit: Ω). The Trim resistor should be connected between the Trim pin and Ground pin.
Vout
R trim
⎡ 9680 ⎤ =⎢ − 715 ⎥ ⎣ Vo − 0 . 8 ⎦
Sense
Module
trim
Rtrim
Vo is the desired output voltage
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
8 Vdc - 14 Vdc Input 0.8 Vdc - 3.63 Vdc / 30 A Outputs May. 19, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Efficiency Data
Module 0.8 V 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 55.0% 50.0% 45.0% 40.0% 3A 7.5A 15A 22.5A 30A
8V 12V 14V
Module 1.8 V 95.0% 90.0% 85.0%
8V
80.0% 75.0% 70.0% 65.0% 60.0% 3A 7.5A 15A 22.5A 30A
12V 14V
M odule 2.5 V 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 3A 7.5A 15A 22.5A 30A
8V 12V 14V
Module 3.3V 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 3A 7.5A 15A 22.5A 30A
8v 12.0V 14.0V
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
8 Vdc - 14 Vdc Input 0.8 Vdc - 3.63 Vdc / 30 A Outputs May. 19, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Thermal Derating Curves
The maximum acceptable temperature measured at the thermal ref points is 110 deg, the thermal ref point is shown in Figure. All the derating curves were tested with two electronic loads connected in parallel.
Vin=12 V, Vo=3.3 V
Vin=12 V,Vo=2.5 V
Vin=12 V, Vo=1.8 V
Vin=12 V, Vo=0.8 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
8 Vdc - 14 Vdc Input 0.8 Vdc - 3.63 Vdc / 30 A Outputs May. 19, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Ripple and Noise Waveforms
12 Vdc input, 0.8 Vdc output
12 Vdc input, 1.8 Vdc output
12 Vdc input, 2.5 Vdc output
12 Vdc input, 3.3 Vdc output
Note: Ripple and noise at full load, external load with 150 uF tantalum cap and 20 uF ceramic at the output, and Ta=25 deg C.
Transient Response Waveforms
50% to 75% load Transient at 0.8 Vdc output
75% to 50% load Transient at0.8 Vdc output
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
8 Vdc - 14 Vdc Input 0.8 Vdc - 3.63 Vdc / 30 A Outputs May. 19, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Transient Response Waveforms (continued)
50% to 75% load Transient at 1.8 Vdc output
75% to 50% load Transient at 1.8 Vdc output
50% to 75% load Transient at 2.5 Vdc output
75% to 50% load Transient at 2.5 Vdc output
50% to 75% load Transient at 3.3 Vdc output
75% to 50% load Transient at 3.3 Vdc output
Note: Transient response at 12 Vdc input, di/dt=0.5 A/uS, with a 20 µF ceramic capacitor and a 150 uF tantalum capacitor 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
8 Vdc - 14 Vdc Input 0.8 Vdc - 3.63 Vdc / 30 A Outputs May. 19, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Mechanical Outline
Pin Connections
Pin 1 2 3 4 5 6 7 8 9 10 Function Vin Vin Ground Ground Trim Remote Sense+ Ground Ground Vout Vout Pin 11 12 13 14 15 16 17 18 19 20 Function Vout Vout Remote On/Off Ground Ground Ground Ground Vin N/C Vin
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
NON-ISOLATED DC/DC CONVERTERS
8 Vdc - 14 Vdc Input 0.8 Vdc - 3.63 Vdc / 30 A Outputs May. 19, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Revision History
Date 2010-3-29 2010-5-19 Revision A B First release Update efficiency data Changes Detail Approval Jack Fan JZ Wang
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. 051910
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
