VRBA-06A2A_07 [BEL]
NON-ISOLATED DC/DC CONVERTERS; 非隔离式DC / DC转换器
| 型号： | VRBA-06A2A_07 |
| 厂家： | 
BEL FUSE INC. |
| 描述： | NON-ISOLATED DC/DC CONVERTERS |
| 文件： | 总10页 (文件大小：301K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NON-ISOLATED DC/DC CONVERTERS
8.3 Vdc - 14 Vdc Input
0.75 Vdc - 5.5 Vdc/6 A Output
VRBA-06A2Ax
RoHS Compliant
Rev.A
•
•
•
•
•
•
Non-Isolated
•
•
•
•
•
Under-Voltage Lockout (UVLO)
High Efficiency
OCP/SCP
High Power Density
Fixed Frequency
Remote On/Off
Wide Input Range
Wide Trim Range
Flexible Output Voltage Sequencing
Active Low/High (Option)
Description
The Bel VRBA-06A2Ax modules are a series of non-isolated dc/dc converters that deliver up to 6 A of output
current with full load efficiency of 92% at 5.0 Vdc output. These modules provide precisely regulated voltage
programmable via external resistor from 0.75 Vdc to 5.5 Vdc over a wide range of input voltage (8.3 Vdc - 14
Vdc). These modules have a sequencing feature that enables designers to implement various types of output
voltage sequencing when powering multiple voltages on a board. The open-frame construction and small
footprint enable designers to develop cost and space-efficient solutions. Standard features include remote On/Off,
over current protection, short current protection, wide input, and programmable output voltage.
Part Selection
Output
Input
Voltage
Max. Output Max. Output
Typical
Efficiency
Model Number
Active Low
Model Number
Active High
Voltage
Current
Power
0.75 V - 5.5 V
8.3 V - 14 V
6 A
33 W
92%
VRBA-06A2AL
VRBA-06A2A0
Notes: 1.Change the last character “L” to “C” to indicate 0.20’’ pin length.
2. Add “G” suffix at the end of the model number to indicate Tray Packaging.
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
-
15 V
Output Enable Terminal Voltage
Sequencing Voltage 1
-0.3 V
-0.3 V
-40 °C
-55 °C
-
-
-
-
15 V
Vin
Ambient Temperature
85 °C
125 °C
Storage Temperature
Notes: All specifications are typical at 25 °C unless otherwise stated.
1. VRBA-06A2Ax series of modules include a sequencing feature that enables users to implement
various types of output voltage sequencing in their applications. This is accomplished via an additional
sequencing pin. When the sequencing feature is not used, tie the SEQ pin to Vin or leave the SEQ pin
floating.
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
8.3 Vdc - 14 Vdc Input
0.75 Vdc - 5.5 Vdc/6 A Output
Input Specifications
Parameter
Min
Typ
Max
Notes
Input Voltage
8.3 V
12 V
14 V
Input Current (full load)
Vo=5.0 V
-
-
-
-
-
2.75 A
1.85 A
1.45 A
1.05 A
0.55 A
4.0 A
2.8 A
2.2 A
1.6 A
0.8 A
Vo=3.3 V
Vo=2.5 V
Vo=1.8 V
Vo=0.75 V
Input Current (no load)
Vo=5.0 V
Vo=0.75 V
-
-
-
-
100 mA
20 mA
Remote Off Input Current
-
1 mA
2 mA
Input Reflected Ripple Current
(pk-pk)
-
120 mA
-
Tested with two 100 uF/25 V tantalum
input capacitors & simulated source
impedance of 1uH, 5 Hz to 20 MHz.
Input Reflected Ripple Current
(rms)
I2t Inrush Current Transient
-
-
40 mA
-
0.002 A2s
0.02 A2s
Turn-on Voltage Threshold
Turn-off Voltage Threshold
-
-
8.1 V
7.5 V
8.2 V
8.0 V
Note: All specifications are typical at 25 °C unless otherwise stated.
Output Specifications
Parameter
Min
Typ
Max
2%Vo,set
Notes
Output Voltage Set Point
-2%Vo,set
-
Vin=12 V, lo=lomax
Over all operating input
Output Voltage Set Point
-2.5%Vo,set
0.7525 V
-
-
3.5%Vo,set voltages, resistive loads and
temperature conditions
Adjustment Range Selected by
External Resistor or Voltage
5.5 V
Load Regulation
Line Regulation
-0.5%Vo,set
-0.4%Vo,set
0.4%Vo,set
0.3%Vo,set
0.5%Vo,set
0.4%Vo,set
Io=Io, min to Io, max
Vin=Vin, min to Vin, max
Regulation Over Temperature
-
0.5%Vo,set
-
Tref=Ta, min to Ta, max
(-40 °C to +85 °C)
Output Current
0 A
-
-
6 A
Current Limit Threshold
7.2 A
18 A
0.25 A2s
-
Short Circuit Surge Transient
-
Ripple and Noise (pk-pk)
Vo=0.75 V
Vo=3.3 V
Vo=5.0 V
-
-
-
20 mV
60 mV
75 mV
-
-
-
Tested with 0-20 MHz, with
10 uF/10 V tantalum capacitor
& 1uF/10 V TDK ceramic
capacitor at the output.
Ripple and Noise (rms)
Vo=0.75 V
Vo=3.3 V
Vo=5.0 V
-
-
-
7 mV
20 mV
25 mV
-
-
-
Turn on Time
-
-
8 mS
0%
10 mS
3%
Overshoot at Turn on
Output Capacitance
ESR ≥ 1mohm
ESR ≥ 10mohm
0 uF
0 uF
-
-
1000 uF
3000 uF
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
8.3 Vdc - 14 Vdc Input
0.75 Vdc - 5.5 Vdc/6 A Output
Output Specifications (continued)
Parameter
Min
Typ
Max
Notes
Transient Response
50% ~ 100% Max Load
-
200 mV
50 uS
-
-
-
-
di/dt=2.5 A/uS; Vin=12 V; and
with 10 uF/10 V tantalum
capacitor & 1 uF/10 V ceramic
capacitor at the output.
Settling Time
100% ~ 50% Max Load
Settling Time
-
-
-
VO = 0.75 V -
5.5 V
200 mV
50 uS
Note: All specifications are typical at nominal input (Vin=12 V), full load at 25 °C unless otherwise stated.
General Specifications
Parameter
Min
Typ
Max
Notes
Efficiency
Vo=5.0 V
Vo=3.3 V
Vo=2.5 V
Vo=1.8 V
Vo=0.75 V
87%
85%
82%
80%
68%
90%
88%
85%
83%
71%
-
-
-
-
-
Measured at Vin=12 V, full load
Switching Frequency
250 kHz
-
300 kHz
135 °C
-
350 kHz
-
Over Temperature Shutdown
Output Trim Range (wide trim)
0.7525 V
5.5 V
Calculated Per Bell Core SR-332 (IO =
Nominal; Ta = 25 °C)
MTBF
3,266,517 hours
Dimensions
Inches (L × W × H)
1 x 0.5 x 0.243
Millimeters (L × W × H)
25.4 x12.7 x 6.16
Weight
-
3 g
-
Note: All specifications are typical at 25 °C unless otherwise stated.
Control Specifications
Parameter
Min
Typ
Max
Notes
Signal Low (Unit Off)
-0.3 V
-
0.4 V
VRBA-06A2A0; Remote On/Off pin open, Unit
on.
Signal High (Unit On)
Signal Low (Unit On)
Signal High (Unit Off)
2.5 V
-0.3 V
2.5 V
-
-
-
14 V
0.4 V
14 V
VRBA-06A2AL; Remote On/Off pin open, Unit
on.
Sequencing Voltage applied on SEQ pin
should be higher than output voltage.
Sequencing Voltage
0 V
-
Vin
Sequencing Slew Rate Capability
Sequencing Delay Time
-
-
-
2 V/mS
-
Delay from Vin, min to application of voltage
on SEQ pin
10 mS
Tracking Accuracy
Power-Up
-
-
100 mV
200 mV
200 mV
400 mV
Power-Down
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
8.3 Vdc - 14 Vdc Input
0.75 Vdc - 5.5 Vdc/6 A Output
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.
Vout
ModuleTrim
10.507
Rtrim
Rtrim
=
− 1
Vadj − 0.7525
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
Module
Vtrim = 0.7 − 0.0667 × (Vadj − 0.7525)
Trim
GND
Vtrim
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
8.3 Vdc - 14 Vdc Input
0.75 Vdc - 5.5 Vdc/6 A Output
Efficiency Data
MODULE 3.3V
MODULE 5.0V
95.0%
100.0%
95.0%
90.0%
85.0%
80.0%
75.0%
90.0%
85.0%
80.0%
75.0%
70.0%
65.0%
60.0%
8.3
8.3V
12.0
14.0
12.0V
14.0V
1A 2A 3A 4A 5A 6A
OUTPUT CURRENT
1A
2A
3A
4A
5A
6A
OUTPUT CURRENT
MODULE 1.8V
MODULE 2.5V
95.0%
90.0%
85.0%
80.0%
75.0%
70.0%
65.0%
60.0%
95.0%
90.0%
85.0%
80.0%
75.0%
70.0%
65.0%
60.0%
8.3V
8.3V
12.0V
14.0V
12.0V
14.0V
1A
2A
3A
4A
5A
6A
1A
2A
3A
4A
5A
6A
OUTPUT CURRENT
OUTPUT CURRENT
MODULE 0.75V
90.0%
80.0%
70.0%
60.0%
50.0%
8.3V
12.0V
14.0V
1A
2A
3A
4A
5A
6A
OUTPUT CURRENT
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
8.3 Vdc - 14 Vdc Input
0.75 Vdc - 5.5 Vdc/6 A Output
Thermal Derating Curves
Vin=12 V, Vo=0.75 V
Vin=12 V, Vo=2.5 V
Vin=12 V, Vo=5.0 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
8.3 Vdc - 14 Vdc Input
0.75 Vdc - 5.5 Vdc/6 A Output
Ripple and Noise Waveforms
Ripple and noise at full load, Vin=12 V, Vo=0.75 V
Ripple and noise at full load, Vin=12 V, Vo=1.2 V
Ripple and noise at full load, Vin=12 V, Vo=1.8 V
Ripple and noise at full load, Vin=12 V, Vo=2.5 V
Ripple and noise at full load, Vin=12 V, Vo=3.3 V
Ripple and noise at full load, Vin=12 V, Vo=5.0 V
Note: The output ripple and noise is tested at 0-20 MHz BW, 10 uF/10 V tantalum capacitor and 1 uF/10 V
ceramic capacitor, 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
8.3 Vdc - 14 Vdc Input
0.75 Vdc - 5.5 Vdc/6 A Output
Transient Response Waveforms
50% to 100% load step at Vin=12 V, Vo=0.75 V
100% to 50% load step at Vin=12 V, Vo=0.75 V
50% to 100% load step at Vin=12 V, Vo=1.2 V
100% to 50% load step at Vin=12 V, Vo=1.2 V
50% to 100% load step at Vin=12 V, Vo=1.8 V
100% to 50% load step at Vin=12 V, Vo=1.8 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
8.3 Vdc - 14 Vdc Input
0.75 Vdc - 5.5 Vdc/6 A Output
Transient Response Waveforms (continued)
50% to 100% load step at Vin=12 V, Vo=2.5 V
50% to 100% load step at Vin=12 V, Vo=3.3 V
50% to 100% load step at Vin=12 V, Vo=5.0 V
100% to 50% load step at Vin=12 V, Vo=2.5 V
100% to 50% load step at Vin=12 V, Vo=3.3 V
100% to 50% load step at Vin=12 V, Vo=5.0 V
Note: Transient response is tested at di/dt=2.5 A/uS, with 10 uF/10 V tantalum capacitor and 1 uF/10 V ceramic
capacitor, 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
8.3 Vdc - 14 Vdc Input
0.75 Vdc - 5.5 Vdc/6 A Output
Mechanical Outline
Pin Connections
Pin
Function
1
Vout+
Trim
2
3
Ground
SEQ
4
5
Vin+
6
Remote On/Off
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. 011207
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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